March 2012 - sanlock-devel - Fedora Mailing-Lists

by David Teigland

python/sanlock.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) New commits: commit fa977a9478a0478d7e7bf7781ce1a8e9b5662cd5 Author: David Teigland <teigland(a)redhat.com> Date: Fri Mar 23 08:51:33 2012 -0500 python: fix path strncpy and an error exit Signed-off-by: David Teigland <teigland(a)redhat.com> diff --git a/python/sanlock.c b/python/sanlock.c index cef3bff..9ece9da 100644 --- a/python/sanlock.c +++ b/python/sanlock.c @@ -198,7 +198,7 @@ py_init_lockspace(PyObject *self __unused, PyObject *args, PyObject *keywds) /* prepare sanlock names */ strncpy(ls.name, lockspace, SANLK_NAME_LEN); - strncpy(ls.host_id_disk.path, path, SANLK_PATH_LEN); + strncpy(ls.host_id_disk.path, path, SANLK_PATH_LEN - 1); /* init sanlock lockspace (gil disabled) */ Py_BEGIN_ALLOW_THREADS @@ -288,7 +288,7 @@ py_add_lockspace(PyObject *self __unused, PyObject *args) /* prepare sanlock names */ strncpy(ls.name, lockspace, SANLK_NAME_LEN); - strncpy(ls.host_id_disk.path, path, SANLK_PATH_LEN); + strncpy(ls.host_id_disk.path, path, SANLK_PATH_LEN - 1); /* add sanlock lockspace (gil disabled) */ Py_BEGIN_ALLOW_THREADS @@ -328,7 +328,7 @@ py_inq_lockspace(PyObject *self __unused, PyObject *args) /* prepare sanlock names */ strncpy(ls.name, lockspace, SANLK_NAME_LEN); - strncpy(ls.host_id_disk.path, path, SANLK_PATH_LEN); + strncpy(ls.host_id_disk.path, path, SANLK_PATH_LEN - 1); /* add sanlock lockspace (gil disabled) */ Py_BEGIN_ALLOW_THREADS @@ -370,7 +370,7 @@ py_rem_lockspace(PyObject *self __unused, PyObject *args) /* prepare sanlock names */ strncpy(ls.name, lockspace, SANLK_NAME_LEN); - strncpy(ls.host_id_disk.path, path, SANLK_PATH_LEN); + strncpy(ls.host_id_disk.path, path, SANLK_PATH_LEN - 1); /* remove sanlock lockspace (gil disabled) */ Py_BEGIN_ALLOW_THREADS @@ -412,17 +412,17 @@ py_acquire(PyObject *self __unused, PyObject *args, PyObject *keywds) return NULL; } - /* parse and check sanlock resource */ - if (__parse_resource(disks, &res) != 0) { - return NULL; - } - /* check if any of the slkfd or pid parameters was given */ if (sanlockfd == -1 && pid == -1) { __set_exception(EINVAL, "Invalid slkfd and pid values"); return NULL; } + /* parse and check sanlock resource */ + if (__parse_resource(disks, &res) != 0) { + return NULL; + } + /* prepare sanlock names */ strncpy(res->lockspace_name, lockspace, SANLK_NAME_LEN); strncpy(res->name, resource, SANLK_NAME_LEN);

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Fwd: [libvirt-users] libvirt with sanlock

by Frido Roose

Hello, I'm a little bit confused about the io_timeout option for sanlock. I increased the io_timeout to 30 seconds, but it seems like the overall initialization becomes slower now. libvirtd is the client through the sanlock plugin. sanlock runs as "sanlock daemon -R 1 -o 30" Restarting sanlock + libvirtd takes about 60 seconds before libvirtd acquires the lease (or at least, before libvirtd starts responding). After a reboot, for some reason, this delay increases up to 360 seconds... I have no idea why this would take longer... The libvirtd guys don't seem to know why this happens... so I hope to find an answer on this list... I didn't find any other timeouts that are configurable. From the source code, it looks like most of the timeouts are based on the io_timeout. Best regards, Frido ---------- Forwarded message ---------- From: Daniel P. Berrange <berrange(a)redhat.com> Date: Tue, Mar 13, 2012 at 3:54 PM Subject: Re: [libvirt-users] libvirt with sanlock To: Frido Roose <fr.roose(a)gmail.com> Cc: libvirt-users(a)redhat.com On Tue, Mar 13, 2012 at 03:42:36PM +0100, Frido Roose wrote: > Hello, > > I configured libvirtd with the sanlock lock manager plugin: > > # rpm -qa | egrep "libvirt-0|sanlock-[01]" > libvirt-lock-sanlock-0.9.4-23.el6_2.4.x86_64 > sanlock-1.8-2.el6.x86_64 > libvirt-0.9.4-23.el6_2.4.x86_64 > > # egrep -v "^#|^$" /etc/libvirt/qemu-sanlock.conf > auto_disk_leases = 1 > disk_lease_dir = "/var/lib/libvirt/sanlock" > host_id = 4 > > # mount | grep sanlock > /dev/mapper/kvm--shared-sanlock on /var/lib/libvirt/sanlock type gfs2 > (rw,noatime,hostdata=jid=0) > > # cat /etc/sysconfig/sanlock > SANLOCKOPTS="-R 1 -o 30" > > I increased the sanlock io_timeout to 30 seconds (default = 10), because > the sanlock dir is on a GFS2 volume and can be blocked for some time while > fencing and journal recovery takes place. > With the default sanlock io timeout, I get lease timeouts because IO is > blocked: > Mar 5 15:37:14 raiti sanlock[5858]: 3318 s1 check_our_lease warning 79 > last_success 3239 > Mar 5 15:37:15 raiti sanlock[5858]: 3319 s1 check_our_lease failed 80 > > So far, all fine, but when I restart sanlock and libvirtd, it takes about 2 > * 30 seconds = 1 minute before libvirtd is usable. "virsh list" hangs > during this time. I can still live with that... > But it gets worse after a reboot, when running a "virsh list" even takes a > couple of minutes (like about 5 minutes) before it responds. After this > initial time, virsh is responding normally, so it looks like an > initialization issue to me. > > Is this a configuration issue, a bug, or expected behavior? Each libvirtd instance has a lease that it owns. When restarting libvirtd it tries to acquire this lease. I don't really understand why, but sanlock sometimes has to wait a very long time between starting & completing its lease acquisition. You'll probably have to ask the sanlock developers for an explanation of why Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/:| |: http://libvirt.org -o- http://virt-manager.org:| |: http://autobuild.org -o- http://search.cpan.org/~danberr/:| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc:|

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Changes to 'refs/tags/sanlock-2.1'

by David Teigland

Changes since the dawn of time: Daniel P. Berrange (15): Fix const-ness of many APIs. Fix warnings in watchdog module Fix function prototypes for no-arg methods Remove use of 'index' as a variable name Make many functions static Fix missing include in logging file Annotate many unused parameters to avoid warnings Remove redundant redeclaration of 'to' variable Fix args to execv() Remove redundant arg to 'run_command' Rename optarg to optionarg to avoid clashing with getopt.h Disable the read_request method since it is unused Add many more compiler warning flags & safety checks Hard code a sector size of 512 if the lease volume is a regular file Ensure libsanlock.so is built with debug/warning flags David Teigland (328): sync_manager: initial commit sync_manager: misc updates sync_manager: misc updates sync_manager: misc updates sync_manager: misc updates sync_manager: add more logging sync_manager: misc updates sync_manager: misc updates sync_manager: num_hosts/MAX_HOSTS stuff daemon: reworking notions of resource_id/token_name sync_manager: resource lockfiles sync_manager: lease arg processing sync_manager: Began multiple lease support sync_manager: use first command line arg as action sync_manager: leader record changes and verify sync_manager: clean up released leases sync_manager: move functions around sync_manager: add more tool actions sync_manager: naming changes sync_manager: separate token index and id sync_manager: fix index usage and other misc sync_manager: use pthread cond in acquire sync_manager: write all log entries sync_manager: simplify polling sync_manager: fix waitpid use sync_manager: acquire can fail early sync_manager: write log entries at exit sync_manager: add test program sync_manager: move secondary pid check sync_manager: fix disk paxos contention devcount: fix verify checks sync_manager: add GPL license file sync_manager: fix leader block offsets sync_manager: increase COMMAND_MAX sync_manager: renewal should verify sync_manager: use sector size from libblkid sync_manager: use a real checksum function sync_manager: add libblkid to spec file sync_manager: print status info sync_manager: one watchdog file per lease sync_manager: lease_threads handle watchdog files sync_manager: fix/add some text/comments sync_manager: refactor read/write sync_manager: move disk io functions sync_manager: remove token arg sync_manager: rename paxos_disk sync_disk sync_manager: add aio read/write sync_manager: make io_timeout_seconds a diskio arg sync_manager: forgot to add new files sync_manager: use log thread sync_manager: client connections sync_manager: connection processing sync_manager: send/recv pid sync_manager: add write_sectors sync_manager: restructuring sync_manager: write_sectors code factoring sync_manager: daemonize sync_manager: releasing leases sync_manager: async releasing sync_manager: release fixes sync_manager: add direct and indirect acquire/release sync_manager: reacquire resources sync_manager: move code sync_manager: same pid may reacquire resource sync_manager: lease migration sync_manager: handle client errors sync_manager: improve error handling sync_manager: host_id leases sync_manager: remove empty files sync_manager: print initialization info sync_manager: rename files sync_manager: clean up header org sync_manager: delta_lease implementation sync_manager: accept offset units sync_manager: fix up init output sync_manager: put back watchdog calls sync_manager: fix start_host_id error paths sync_manager: add log_error's for watchdog file errors sync_manager: actual timeouts sync_manager: change timeouts on cmd line sanlock: create new external api sanlock: build libsanlock sanlock: use MAX_LEASES everywhere sanlock: add libvirt plugin sanlock plugin: couple minor fixes sanlock: clean up /var file names sanlock plugin: fix symbol needed by libvirt sanlock: add some debug output sanlock plugin: fix uuid copy sanlock plugin: fix names sanlock: add "owner_name" sanlock: fix renewal checks sanlock: clean up host_id types sanlock: set_host_id command sanlock: fix killing pids sanlock: add status command sanlock: set version to 1.0 sanlock: delta_lease cleanup sanlock: changing num_hosts sanlock: add dump command sanlock: renewal timings sanlock: add direct option sanlock: check for watchdog file sanlock: recovery fixes lock_driver_sanlock: fix compile problems sanlock: improve command options sanlock: tidying help text sanlock: move binary to /usr/sbin sanlock: add init script sanlock: fix sigterm shutdown sanlock: init stop sanlock: add wdtest command sanlock.spec: new url lock_driver_sanlock: remove close sanlock: introduce lockspaces lock_driver_sanlock: remove files sanlock: better logging functions sanlock: misc log message sanlock.spec: sbin not libexec sanlock init: remove watchdog reference wdmd: watchdog multiplexing daemon sanlock: add code to use wdmd sanlock/wdmd: use wdmd in sanlock sanlock/wdmd: add copyright header to source files sanlock: rename sanlock source dir sanlock: move tests dir move COPYING file wdmd: use signalfd for signal handling Fix Makefile comments wdmd: fix daemon debug option wdmd: add init script sanlock.spec: updates sanlock.spec: src dir sanlock: build with uninstalled libwdmd sanlock: version 1.1 sanlock: high priority options wdmd: high priority options sanlock: return migration state sanlock: migration.txt describes libvirt/sanlock steps libsanlock: include admin functions sanlock: fix host_id expiration check sanlock: migration working devcount: migrate test sanlock: setowner improvements sanlock: migrate to target fix sanlock: fix wdmd stop order sanlock: various fixes sanlock: remove wdtest sanlock: remove migration sanlock: clean up command return data sanlock: add resource string conversion functions sanlock: rework internal structs devcount: add relock test sanlock: fix release and inquire sanlock: add_lockspace EEXIST sanlock: rework client handling sanlock: clean up warnings sanlock: debug message changes sanlock: add lockspace checks wdmd: enable test scripts sanlock: add str_to_lockspace to lib WIP devcount migrate devcount: new migrate test sanlock: read_id and live_id commands sanlock: check lockspace name and host_id sanlock: remove remaining cluster_mode sanlock: add libsanlock_direct devcountn: start multiple devcount tests devcount: small changes sanlock: new return values sanlock: misc changes and fix sanlock: log error of full bad block sanlock: interval between renewal checks sanlock: renewal changes sanlock: fix log_dump sanlock: fix find_client_pid sanlock: fix host_id reads from paxos_acquire sanlock: init with one write devcount: improve output devcount: new pause/resume devcount: add expire test sanlock: correct paxos usage sanlock: direct read_leader sanlock: paxos delays sanlock: use thread pool sanlock: client status output format changes sanlock: fix inquire of dead pid sanlock: use native linux aio sanlock: i/o changes sanlock: aio changes sanlock: reduce paxos acquire read ops sanlock: quiet error case sanlock: don't free aio buf until event completes sanlock: io timeout related changes sanlock: read dblocks in single aligned io sanlock: add sanlock_restrict api sanlock: add sanlock_direct_sector_size api sanlock: add checksum to dblocks sanlock: fix init restart sanlock: don't release tokens in dead lockspace sanlock: fix adding lockspace sanlock: official 1MB/8MB alignment devcount: use aio in init libsanlock: link with LDFLAGS sanlock: increase version to 1.3 sanlock/wdmd: shut up warnings sanlock: fix libwdmd linking remove spec file sanlock: use a completed read after renewal timeout sanlock: use unique host name in delta leases sanlock: remove sector_size api sanlock: abort delta wait on shutdown sanlock: fix add_lockspace failure sanlk_load: add new test sanlock: fix recv and inquire sanlock: initial pid_dead check in acquire sanlock: release 1.4 sanlock: generate a uuid for host id sanlock: return -EINPROGRESS from add_lockspace sanlk_load: periodically kill and replace a pid sanlock: zero num_hosts uses DEFAULT_MAX_HOSTS tests: misc changes sanlock: break paxos_acquire wait loop sanlock: increase log line to 512 bytes sanlock: change a log_error to log_debug sanlock: fail host_id when corrupted sanlock: release 1.5 sanlock: release 1.6 sanlock: handle colon escaping in path strings wdmd: add option for high priority wdmd: use accept4 with SOCK_NONBLOCK wdmd: tidy sun_addr snprintf wdmd: pid and sock file changes wdmd: add man page wdmd: disable test scripts sanlock: use accept4 with SOCK_NONBLOCK sanlock: tidy sun_addr snprintf sanlock: add explicit -luuid sanlock: pid and sock file changes sanlock: add man page sanlock/wdmd: improve mkdir of run dir wdmd: new build flags sanlock: new build flags sanlock/wdmd: use monotonic time sanlock: build with pie sanlock/wdmd: nonblocking listening/accept sanlock: add missing monotime files sanlock: update man page sanlock: man page update sanlock: update man page and help text sanlock: print connections limit release: sanlock 1.7 makefile: install mode for man pages sanlock: read align_size in renewal sanlock: check other host_id leases sanlock: minor fixes and cleanups sanlock: add request api/cmd sanlock: crc code tidying sanlock/wdmd: add license header to files sanlock: create libsanlock_client sanlock: move client code remove COPYING file sanlock: remove internal header from sanlock_sock libsanlock_client: use LGPLv2+ libwdmd: use LGPLv2+ sanlock_rv.h: switch to LGPLv2+ README.license: document licenses sanlock: client align and init sanlock: write request record sanlock: request struct magic and version numbers sanlock: set bitmap for requests sanlock: examine resource requests sanlock: update man page sanlock: remove old comment sanlock: renaming functions sanlock: optimize paxos wait sanlock: use flags in struct resource sanlock: restructure lockspace checks sanlock: remove BLOCK_WD force mode libsanlock: fix function stubs sanlock: new status and host_status sanlock: improve status output sanlock: status output sorting sanlock: SIGTERM and SIGKILL for REQ_KILL_PID sanlock: add flag RESTRICT_SIGKILL sanlock: setup fewer aio events sanlock: move cmd processing sanlock: suppress log messages sanlock: rename source files sanlock: improve killing pids sanlock: fix log_dump version 1.8 sanlock: quick host_id reacquire sanlock: add force option to shutdown command simpler copyright line default to GPLv2+ for our original files sanlock: improve daemon permission errors add systemd files fixing up init stuff release 1.9 sanlock: setmode Revert "sanlock: setmode" sanlock: fix error exit sanlock: fix debug line init scripts: fix path to restorecon sanlock: shared mode for leases sanlock: fix missing close_disks sanlock: fix problem in paxos sanlock: add paxos sanity check sanlock: fix leaking fd sanlock: change to paxos algorithm sanlock: change ondisk version sanlock: remove log noise sanlock: ignore SIGTERM if lockspaces exist sanlock: quiet more error messages sanlk_load: munging variable names sanlk_load: add shared locks sanlock: kill client connection on recv error sanlk_load: ignore release errors sanlock: set sector_size in shared tokens sanlock man page: mention SH release 2.0 sanlock: clean up warnings sanlock: fix inquire state string sanlock: retry transient sh failures sanlock: status for all shared tokens sanlock: add a logrotate file release 2.1 David Weber (2): Fix order of linking Install another symlink to shared library Fabio M. Di Nitto (5): build: sanlock should link with libsanlock build: install shared lib header files and fix DESTDIR usage build: drop rpm target spec file: do first cut for total spec file build: fix linking with libsanlock and install target Federico Simoncelli (41): rpm: sync specfile with fedora rpm: add sanlock_admin.h header rpm: add the lib package, install the initscripts python: remove unused python code python: add python binding python: release the gil during sanlock operations python: wrap sanlock extension with a module rpm: add python binding package python: pass a lockspace copy to str_to_lockspace makefile: fix install typo rpm: add sanlock_direct header python: add sanlock init functions and exception direct: close disks after initialization python: register process only once daemon: configurable socket permissions rpm: add sanlock user and group python: exceptions must contain the errno rpm: add missing libaio-devel dependency rpm: add daemon options in the init file python: add missing aio library python: add get_alignment function libs: include libsanlock_direct into libsanlock python: align num_hosts and max_hosts defaults python: expose sanlock file descriptor python: improve error reporting python: parse lockspaces and resources natively python: add usage example python: initial support for sanlock errors python: document the sanlock module python: module cleanup build: fix documentation install path client: return appropriate errno on failure python: expose errno in the exception python: acquire leases for other processes sanlock: implement the inq_lockspace command python: add the inq_lockspace command binding misc: run sanlock daemon as sanlock user wdmd: use getopt to parse the command line wdmd: make socket group ownership configurable python: add shared resource parameter to acquire python: release leases for other processes Saggi Mizrahi (21): Added the begining of the testing and debugging tools Better handling of max hosts sync_manager: Updated tests to work with new lease struct sync_manager: fixed skipping first arg in command sync_manager: acquire and release actions sync_manager: minor fixes sync_manager: renamed stuff sync_manager: made acquire synchronous again sync_manager: added set_host_id action sync_manager: use kill(0) for secondary pid check sync_manager: make rpm and install sync_manager: spec file update sync_manager: Allow longer resource names sync_manager: allow repeated set_host_id sync_manager: Added escaping for the leases arg sync_manager: Created the python bindings for sync_manager sync_manager: listener socket permissions sync_manager: Updated python binding and tests sync_manager: Made 'token' a const in log_level sync_manager: refactor messaging system sync_manager: use getsockopt PEERCRED

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src/main.c wdmd/main.c

by David Teigland

src/main.c | 2 +- wdmd/main.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) New commits: commit baa3aed6fe5e9711b10153975d0c99c25f63f3f8 Author: David Teigland <teigland(a)redhat.com> Date: Mon Mar 12 09:57:21 2012 -0500 release 2.1 Signed-off-by: David Teigland <teigland(a)redhat.com> diff --git a/src/main.c b/src/main.c index 7222e22..8ca5d14 100644 --- a/src/main.c +++ b/src/main.c @@ -50,7 +50,7 @@ #include "client_cmd.h" #include "cmd.h" -#define RELEASE_VERSION "2.0" +#define RELEASE_VERSION "2.1" struct thread_pool { int num_workers; diff --git a/wdmd/main.c b/wdmd/main.c index 1bd517a..18a4109 100644 --- a/wdmd/main.c +++ b/wdmd/main.c @@ -41,7 +41,7 @@ #define GNUC_UNUSED __attribute__((__unused__)) #endif -#define RELEASE_VERSION "2.0" +#define RELEASE_VERSION "2.1" #define DEFAULT_TEST_INTERVAL 10 #define DEFAULT_FIRE_TIMEOUT 60

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2 commits - python/example.py python/sanlock.c

by David Teigland

python/example.py | 8 +++++--- python/sanlock.c | 37 ++++++++++++++++++++++++------------- 2 files changed, 29 insertions(+), 16 deletions(-) New commits: commit d506f7f445cf2e8106b93989ed7f24fe3c9ec881 Author: Federico Simoncelli <fsimonce(a)redhat.com> Date: Wed Mar 7 16:28:01 2012 +0000 python: release leases for other processes The python binding was lacking the support for releasing leases on behalf of other processes. Signed-off-by: Federico Simoncelli <fsimonce(a)redhat.com> diff --git a/python/example.py b/python/example.py index 1f2f3a7..ef1c957 100644 --- a/python/example.py +++ b/python/example.py @@ -13,6 +13,8 @@ def main(): offset = sanlock.get_alignment(disk) + SNLK_DISKS = [(disk, offset)] + print "Registering to sanlock" fd = sanlock.register() @@ -20,16 +22,16 @@ def main(): sanlock.init_lockspace(LOCKSPACE_NAME, disk) print "Initializing '%s' on '%s'" % (RESOURCE_NAME, LOCKSPACE_NAME) - sanlock.init_resource(LOCKSPACE_NAME, RESOURCE_NAME, [(disk, offset)]) + sanlock.init_resource(LOCKSPACE_NAME, RESOURCE_NAME, SNLK_DISKS) print "Acquiring the id '%i' on '%s'" % (HOST_ID, LOCKSPACE_NAME) sanlock.add_lockspace(LOCKSPACE_NAME, HOST_ID, disk) try: print "Acquiring '%s' on '%s'" % (RESOURCE_NAME, LOCKSPACE_NAME) - sanlock.acquire(fd, LOCKSPACE_NAME, RESOURCE_NAME, [(disk, offset)]) + sanlock.acquire(LOCKSPACE_NAME, RESOURCE_NAME, SNLK_DISKS, slkfd=fd) print "Releasing '%s' on '%s'" % (RESOURCE_NAME, LOCKSPACE_NAME) - sanlock.release(fd, LOCKSPACE_NAME, RESOURCE_NAME, [(disk, offset)]) + sanlock.release(LOCKSPACE_NAME, RESOURCE_NAME, SNLK_DISKS, slkfd=fd) finally: print "Releasing the id '%i' on '%s'" % (HOST_ID, LOCKSPACE_NAME) sanlock.rem_lockspace(LOCKSPACE_NAME, HOST_ID, disk) diff --git a/python/sanlock.c b/python/sanlock.c index 25791fd..cef3bff 100644 --- a/python/sanlock.c +++ b/python/sanlock.c @@ -452,21 +452,24 @@ exit_fail: /* release */ PyDoc_STRVAR(pydoc_release, "\ -release(fd, lockspace, resource, disks)\n\ +release(lockspace, resource, disks [, slkfd=fd, pid=owner])\n\ Release a resource lease for the current process.\n\ The disks must be in the format: [(path, offset), ... ]"); static PyObject * -py_release(PyObject *self __unused, PyObject *args) +py_release(PyObject *self __unused, PyObject *args, PyObject *keywds) { - int rv, sanlockfd; + int rv, sanlockfd = -1, pid = -1; const char *lockspace, *resource; struct sanlk_resource *res; PyObject *disks; + static char *kwlist[] = {"lockspace", "resource", "disks", "slkfd", + "pid", NULL}; + /* parse python tuple */ - if (!PyArg_ParseTuple(args, "issO!", - &sanlockfd, &lockspace, &resource, &PyList_Type, &disks)) { + if (!PyArg_ParseTupleAndKeywords(args, keywds, "ssO!|ii", kwlist, + &lockspace, &resource, &PyList_Type, &disks, &sanlockfd, &pid)) { return NULL; } @@ -481,7 +484,7 @@ py_release(PyObject *self __unused, PyObject *args) /* release sanlock resource (gil disabled) */ Py_BEGIN_ALLOW_THREADS - rv = sanlock_release(sanlockfd, -1, 0, 1, &res); + rv = sanlock_release(sanlockfd, pid, 0, 1, &res); Py_END_ALLOW_THREADS if (rv != 0) { @@ -527,7 +530,8 @@ sanlock_methods[] = { {"rem_lockspace", py_rem_lockspace, METH_VARARGS, pydoc_rem_lockspace}, {"acquire", (PyCFunction) py_acquire, METH_VARARGS|METH_KEYWORDS, pydoc_acquire}, - {"release", py_release, METH_VARARGS, pydoc_release}, + {"release", (PyCFunction) py_release, + METH_VARARGS|METH_KEYWORDS, pydoc_release}, {NULL, NULL, 0, NULL} }; commit ea97a5f1d4f04f63f9a30985f725216ca88addf1 Author: Federico Simoncelli <fsimonce(a)redhat.com> Date: Wed Mar 7 16:28:00 2012 +0000 python: add shared resource parameter to acquire Signed-off-by: Federico Simoncelli <fsimonce(a)redhat.com> diff --git a/python/sanlock.c b/python/sanlock.c index 48d75be..25791fd 100644 --- a/python/sanlock.c +++ b/python/sanlock.c @@ -387,26 +387,28 @@ py_rem_lockspace(PyObject *self __unused, PyObject *args) /* acquire */ PyDoc_STRVAR(pydoc_acquire, "\ -acquire(lockspace, resource, disks [, slkfd=fd, pid=owner])\n\ +acquire(lockspace, resource, disks [, slkfd=fd, pid=owner, shared=False])\n\ Acquire a resource lease for the current process (using the slkfd argument\n\ to specify the sanlock file descriptor) or for an other process (using the\n\ -pid argument).\n\ +pid argument). If shared is True the resource will be acquired in the shared\n\ +mode.\n\ The disks must be in the format: [(path, offset), ... ]\n"); static PyObject * py_acquire(PyObject *self __unused, PyObject *args, PyObject *keywds) { - int rv, sanlockfd = -1, pid = -1; + int rv, sanlockfd = -1, pid = -1, shared = 0; const char *lockspace, *resource; struct sanlk_resource *res; PyObject *disks; static char *kwlist[] = {"lockspace", "resource", "disks", "slkfd", - "pid", NULL}; + "pid", "shared", NULL}; /* parse python tuple */ - if (!PyArg_ParseTupleAndKeywords(args, keywds, "ssO!|ii", kwlist, - &lockspace, &resource, &PyList_Type, &disks, &sanlockfd, &pid)) { + if (!PyArg_ParseTupleAndKeywords(args, keywds, "ssO!|iii", kwlist, + &lockspace, &resource, &PyList_Type, &disks, &sanlockfd, &pid, + &shared)) { return NULL; } @@ -425,6 +427,11 @@ py_acquire(PyObject *self __unused, PyObject *args, PyObject *keywds) strncpy(res->lockspace_name, lockspace, SANLK_NAME_LEN); strncpy(res->name, resource, SANLK_NAME_LEN); + /* prepare sanlock flags */ + if (shared) { + res->flags |= SANLK_RES_SHARED; + } + /* acquire sanlock resource (gil disabled) */ Py_BEGIN_ALLOW_THREADS rv = sanlock_acquire(sanlockfd, pid, 0, 1, &res, 0);

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src/logrotate.sanlock

by David Teigland

src/logrotate.sanlock | 10 ++++++++++ 1 file changed, 10 insertions(+) New commits: commit 3f49493548065114e09e5bb3f40b0a51268121ae Author: David Teigland <teigland(a)redhat.com> Date: Thu Mar 8 11:30:00 2012 -0600 sanlock: add a logrotate file Signed-off-by: David Teigland <teigland(a)redhat.com> diff --git a/src/logrotate.sanlock b/src/logrotate.sanlock new file mode 100644 index 0000000..7cf4bcb --- /dev/null +++ b/src/logrotate.sanlock @@ -0,0 +1,10 @@ +/var/log/sanlock.log { + rotate 3 + missingok + copytruncate + size 10M + compress + compresscmd /usr/bin/xz + uncompresscmd /usr/bin/unxz + compressext .xz +}

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4 commits - src/cmd.c src/diskio.c src/leader.h src/lockspace.c src/main.c src/paxos_lease.c src/paxos_lease.h src/resource.c src/sanlock.h src/sanlock_internal.h src/sanlock_rv.h tests/sanlk_load.c

by David Teigland

src/cmd.c | 26 +++++++++++++-------- src/diskio.c | 4 +-- src/leader.h | 4 ++- src/lockspace.c | 3 ++ src/main.c | 2 + src/paxos_lease.c | 21 +++++++++++++++++ src/paxos_lease.h | 1 src/resource.c | 59 +++++++++++++++++++++++++++++++++++++++---------- src/sanlock.h | 2 - src/sanlock_internal.h | 2 + src/sanlock_rv.h | 1 tests/sanlk_load.c | 10 +++++--- 12 files changed, 106 insertions(+), 29 deletions(-) New commits: commit 3c40f2a3ff23320340da2cd858ef9b4ed720b1ed Author: David Teigland <teigland(a)redhat.com> Date: Wed Mar 7 15:37:52 2012 -0600 sanlock: status for all shared tokens For the status command, output a resource once for each token so the specific pid and token_id can be included. Signed-off-by: David Teigland <teigland(a)redhat.com> diff --git a/src/cmd.c b/src/cmd.c index 60d36b2..7a44ce2 100644 --- a/src/cmd.c +++ b/src/cmd.c @@ -1293,17 +1293,20 @@ static int print_state_lockspace(struct space *sp, char *str, const char *list_n return strlen(str) + 1; } -static int print_state_resource(struct resource *r, char *str, const char *list_name) +static int print_state_resource(struct resource *r, char *str, const char *list_name, + uint32_t token_id) { memset(str, 0, SANLK_STATE_MAXSTR); snprintf(str, SANLK_STATE_MAXSTR-1, "list=%s " "flags=%x " - "lver=%llu", + "lver=%llu " + "token_id=%u", list_name, r->flags, - (unsigned long long)r->leader.lver); + (unsigned long long)r->leader.lver, + token_id); return strlen(str) + 1; } @@ -1399,9 +1402,11 @@ static void send_state_lockspace(int fd, struct space *sp, const char *list_name send(fd, &lockspace, sizeof(lockspace), MSG_NOSIGNAL); } -void send_state_resource(int fd, struct resource *r, const char *list_name); +void send_state_resource(int fd, struct resource *r, const char *list_name, + int pid, uint32_t token_id); -void send_state_resource(int fd, struct resource *r, const char *list_name) +void send_state_resource(int fd, struct resource *r, const char *list_name, + int pid, uint32_t token_id) { struct sanlk_state st; char str[SANLK_STATE_MAXSTR]; @@ -1411,11 +1416,11 @@ void send_state_resource(int fd, struct resource *r, const char *list_name) memset(&st, 0, sizeof(st)); st.type = SANLK_STATE_RESOURCE; - st.data32 = r->pid; + st.data32 = pid; st.data64 = r->leader.lver; strncpy(st.name, r->r.name, NAME_ID_SIZE); - str_len = print_state_resource(r, str, list_name); + str_len = print_state_resource(r, str, list_name, token_id); st.str_len = str_len; diff --git a/src/resource.c b/src/resource.c index 664d69e..6e6de5d 100644 --- a/src/resource.c +++ b/src/resource.c @@ -33,7 +33,8 @@ #include "mode_block.h" /* from cmd.c */ -void send_state_resource(int fd, struct resource *r, const char *list_name); +void send_state_resource(int fd, struct resource *r, const char *list_name, int pid, uint32_t token_id); + /* from main.c */ int get_rand(int a, int b); @@ -50,14 +51,20 @@ static pthread_cond_t resource_cond; void send_state_resources(int fd) { struct resource *r; + struct token *token; pthread_mutex_lock(&resource_mutex); - list_for_each_entry(r, &resources_held, list) - send_state_resource(fd, r, "resources_held"); - list_for_each_entry(r, &resources_add, list) - send_state_resource(fd, r, "resources_add"); + list_for_each_entry(r, &resources_held, list) { + list_for_each_entry(token, &r->tokens, list) + send_state_resource(fd, r, "held", token->pid, token->token_id); + } + + list_for_each_entry(r, &resources_add, list) { + list_for_each_entry(token, &r->tokens, list) + send_state_resource(fd, r, "add", token->pid, token->token_id); + } list_for_each_entry(r, &resources_rem, list) - send_state_resource(fd, r, "resources_rem"); + send_state_resource(fd, r, "rem", r->pid, r->release_token_id); pthread_mutex_unlock(&resource_mutex); } commit 0d816d9d14990c9f4e5f773a412569d51bab8997 Author: David Teigland <teigland(a)redhat.com> Date: Wed Mar 7 14:10:58 2012 -0600 sanlock: retry transient sh failures Because acquiring a shared lease includes holding the lease in ex for a short period, multiple hosts trying to acquire the sh lease in parallel can see transient failures. Detect this situation and retry the sh acquire up to eight times. Signed-off-by: David Teigland <teigland(a)redhat.com> diff --git a/src/cmd.c b/src/cmd.c index 00fff98..60d36b2 100644 --- a/src/cmd.c +++ b/src/cmd.c @@ -306,11 +306,12 @@ static void cmd_acquire(struct task *task, struct cmd_args *ca) /* save a record of what this token_id is for later debugging */ log_level(space.space_id, token->token_id, NULL, LOG_WARNING, - "resource %.48s:%.48s:%.256s:%llu for %d,%d,%d", + "resource %.48s:%.48s:%.256s:%llu%s for %d,%d,%d", token->r.lockspace_name, token->r.name, token->r.disks[0].path, (unsigned long long)token->r.disks[0].offset, + (token->acquire_flags & SANLK_RES_SHARED) ? ":SH" : "", cl_ci, cl_fd, cl_pid); } diff --git a/src/leader.h b/src/leader.h index cd0dc56..0575255 100644 --- a/src/leader.h +++ b/src/leader.h @@ -42,10 +42,12 @@ #define LEADER_CHECKSUM_LEN 168 #define LEASE_FREE 0 +#define LFL_SHORT_HOLD 0x00000001 + struct leader_record { uint32_t magic; uint32_t version; - uint32_t unused0; + uint32_t flags; uint32_t sector_size; uint64_t num_hosts; uint64_t max_hosts; diff --git a/src/main.c b/src/main.c index af82320..7222e22 100644 --- a/src/main.c +++ b/src/main.c @@ -1892,6 +1892,7 @@ static int do_direct(void) log_tool("read_leader done %d", rv); log_tool("magic 0x%0x", leader.magic); log_tool("version 0x%x", leader.version); + log_tool("flags 0x%x", leader.flags); log_tool("sector_size %u", leader.sector_size); log_tool("num_hosts %llu", (unsigned long long)leader.num_hosts); @@ -2006,6 +2007,7 @@ int main(int argc, char *argv[]) com.uid = DEFAULT_SOCKET_UID; com.gid = DEFAULT_SOCKET_GID; com.pid = -1; + com.sh_retries = DEFAULT_SH_RETRIES; memset(&main_task, 0, sizeof(main_task)); diff --git a/src/paxos_lease.c b/src/paxos_lease.c index e6e1aa4..a52c085 100644 --- a/src/paxos_lease.c +++ b/src/paxos_lease.c @@ -1276,6 +1276,7 @@ int paxos_lease_acquire(struct task *task, (unsigned long long)host_id_leader.owner_generation, (unsigned long long)host_id_leader.timestamp); } + memcpy(leader_ret, &cur_leader, sizeof(struct leader_record)); error = SANLK_ACQUIRE_IDLIVE; goto out; } @@ -1391,6 +1392,7 @@ int paxos_lease_acquire(struct task *task, (unsigned long long)tmp_leader.owner_generation, (unsigned long long)tmp_leader.timestamp); + memcpy(leader_ret, &tmp_leader, sizeof(struct leader_record)); error = SANLK_ACQUIRE_OWNED; } goto out; @@ -1456,6 +1458,23 @@ int paxos_lease_acquire(struct task *task, if (new_num_hosts) new_leader.num_hosts = new_num_hosts; + + if (new_leader.owner_id == token->host_id) { + /* + * The LFL_SHORT_HOLD flag is just a "hint" to help + * other nodes be more intelligent about retrying + * due to transient failures when acquiring shared + * leases. Only modify SHORT_HOLD if we're commiting + * ourself as the new owner. If we're commiting another + * host as owner, we don't know if they are acquiring + * shared or not. + */ + if (flags & PAXOS_ACQUIRE_SHARED) + new_leader.flags |= LFL_SHORT_HOLD; + else + new_leader.flags &= ~LFL_SHORT_HOLD; + } + new_leader.checksum = leader_checksum(&new_leader); error = write_new_leader(task, token, &new_leader, "paxos_acquire"); @@ -1471,6 +1490,7 @@ int paxos_lease_acquire(struct task *task, (unsigned long long)new_leader.owner_generation, (unsigned long long)new_leader.timestamp); + memcpy(leader_ret, &new_leader, sizeof(struct leader_record)); error = SANLK_ACQUIRE_OTHER; goto out; } @@ -1590,6 +1610,7 @@ int paxos_lease_release(struct task *task, leader.write_id = token->host_id; leader.write_generation = token->host_generation; leader.write_timestamp = monotime(); + leader.flags &= ~LFL_SHORT_HOLD; leader.checksum = leader_checksum(&leader); error = write_new_leader(task, token, &leader, "paxos_release"); diff --git a/src/paxos_lease.h b/src/paxos_lease.h index 5f71ba4..6e7e833 100644 --- a/src/paxos_lease.h +++ b/src/paxos_lease.h @@ -11,6 +11,7 @@ #define PAXOS_ACQUIRE_FORCE 0x00000001 #define PAXOS_ACQUIRE_QUIET_FAIL 0x00000002 +#define PAXOS_ACQUIRE_SHARED 0x00000004 uint32_t leader_checksum(struct leader_record *lr); diff --git a/src/resource.c b/src/resource.c index bb4f787..664d69e 100644 --- a/src/resource.c +++ b/src/resource.c @@ -34,6 +34,8 @@ /* from cmd.c */ void send_state_resource(int fd, struct resource *r, const char *list_name); +/* from main.c */ +int get_rand(int a, int b); static pthread_t resource_pt; static int resource_thread_stop; @@ -292,6 +294,9 @@ static int acquire_disk(struct task *task, struct token *token, if (com.quiet_fail) flags |= PAXOS_ACQUIRE_QUIET_FAIL; + if (token->acquire_flags & SANLK_RES_SHARED) + flags |= PAXOS_ACQUIRE_SHARED; + memset(&leader_tmp, 0, sizeof(leader_tmp)); rv = paxos_lease_acquire(task, token, flags, &leader_tmp, acquire_lver, @@ -301,11 +306,9 @@ static int acquire_disk(struct task *task, struct token *token, (unsigned long long)leader_tmp.lver, (unsigned long long)leader_tmp.timestamp); - if (rv < 0) - return rv; - memcpy(leader, &leader_tmp, sizeof(struct leader_record)); - return rv; /* SANLK_OK */ + + return rv; /* SANLK_RV */ } /* return < 0 on error, 1 on success */ @@ -526,7 +529,9 @@ int acquire_token(struct task *task, struct token *token) struct resource *r; uint64_t acquire_lver = 0; uint32_t new_num_hosts = 0; - int rv, live_count = 0; + int sh_retries = 0; + int live_count = 0; + int rv; if (token->acquire_flags & SANLK_RES_LVER) acquire_lver = token->acquire_lver; @@ -589,8 +594,29 @@ int acquire_token(struct task *task, struct token *token) copy_disks(&r->r.disks, &token->r.disks, token->r.num_disks); + retry: + memset(&leader, 0, sizeof(struct leader_record)); + rv = acquire_disk(task, token, acquire_lver, new_num_hosts, &leader); if (rv < 0) { + if ((token->acquire_flags & SANLK_RES_SHARED) && + (leader.flags & LFL_SHORT_HOLD)) { + /* + * Multiple parallel sh requests can fail because + * the lease is briefly held in ex mode. The ex + * holder sets SHORT_HOLD in the leader record to + * indicate that it's only held for a short time + * while acquiring a shared lease. A retry will + * probably succeed. + */ + if (sh_retries++ < com.sh_retries) { + int us = get_rand(0, 1000000); + log_token(token, "acquire_token sh_retry %d %d", rv, us); + usleep(us); + goto retry; + } + rv = SANLK_ACQUIRE_SHRETRY; + } release_token_opened(task, token); return rv; } diff --git a/src/sanlock.h b/src/sanlock.h index e65215d..9267c2b 100644 --- a/src/sanlock.h +++ b/src/sanlock.h @@ -62,7 +62,7 @@ struct sanlk_resource { uint64_t data64; /* per-resource command-specific data */ uint32_t data32; /* per-resource command-specific data */ uint32_t unused; - uint32_t flags; + uint32_t flags; /* SANLK_RES_ */ uint32_t num_disks; /* followed by num_disks sanlk_disk structs */ struct sanlk_disk disks[0]; diff --git a/src/sanlock_internal.h b/src/sanlock_internal.h index 1ed5d98..4565855 100644 --- a/src/sanlock_internal.h +++ b/src/sanlock_internal.h @@ -518,6 +518,7 @@ EXTERN struct client *client; #define DEFAULT_SOCKET_MODE (S_IRUSR|S_IWUSR|S_IRGRP|S_IWGRP) #define DEFAULT_MIN_WORKER_THREADS 2 #define DEFAULT_MAX_WORKER_THREADS 8 +#define DEFAULT_SH_RETRIES 8 struct command_line { int type; /* COM_ */ @@ -539,6 +540,7 @@ struct command_line { int num_hosts; /* -n */ int max_hosts; /* -m */ int res_count; + int sh_retries; uint32_t force_mode; char our_host_name[SANLK_NAME_LEN+1]; char *dump_path; diff --git a/src/sanlock_rv.h b/src/sanlock_rv.h index 60f90c8..95234c7 100644 --- a/src/sanlock_rv.h +++ b/src/sanlock_rv.h @@ -45,6 +45,7 @@ #define SANLK_ACQUIRE_IDLIVE -243 #define SANLK_ACQUIRE_OWNED -244 #define SANLK_ACQUIRE_OTHER -245 +#define SANLK_ACQUIRE_SHRETRY -246 #define SANLK_RELEASE_LVER -250 #define SANLK_RELEASE_OWNER -251 commit f5d100e46d5c97ac2ed5632c11e89df30039d5fc Author: David Teigland <teigland(a)redhat.com> Date: Mon Mar 5 14:24:17 2012 -0600 sanlock: fix inquire state string If the first entry of the token array was null (due to a release), the inquire state string would have a leading space. Signed-off-by: David Teigland <teigland(a)redhat.com> diff --git a/src/cmd.c b/src/cmd.c index b4f356d..00fff98 100644 --- a/src/cmd.c +++ b/src/cmd.c @@ -654,7 +654,7 @@ static void cmd_inquire(struct task *task, struct cmd_args *ca) goto done; } - if (i) + if (cat_count) strcat(state, " "); strcat(state, str); cat_count++; diff --git a/tests/sanlk_load.c b/tests/sanlk_load.c index 7f4da37..cc511f2 100644 --- a/tests/sanlk_load.c +++ b/tests/sanlk_load.c @@ -165,7 +165,10 @@ static void dump_inquire_state(int pid, char *state) for (i = 0; i < len; i++) { if (state[i] == ' ') { state[i] = '\0'; - log_debug("%d %s", pid, p); + if (!i) + log_debug("%d leading space", pid); + else + log_debug("%d %s", pid, p); p = state + i + 1; } } @@ -227,8 +230,6 @@ static int check_lock_state(int pid, int result, int count, char *res_state) if ((found_count != count) || bad_count) goto fail; - if (res_state) - free(res_state); return 0; fail: @@ -472,6 +473,9 @@ static void inquire_all(int pid, int fd) if (count && debug_verbose) dump_inquire_state(pid, state); + + if (state) + free(state); } int do_rand_child(void) commit 2dffb14a90e9e9fee4fc91a85d7ddc795e0228d3 Author: David Teigland <teigland(a)redhat.com> Date: Mon Mar 5 13:54:41 2012 -0600 sanlock: clean up warnings Signed-off-by: David Teigland <teigland(a)redhat.com> diff --git a/src/cmd.c b/src/cmd.c index 8845260..b4f356d 100644 --- a/src/cmd.c +++ b/src/cmd.c @@ -1061,7 +1061,7 @@ static void cmd_init_lockspace(struct task *task, struct cmd_args *ca) static void cmd_init_resource(struct task *task, struct cmd_args *ca) { - struct token *token; + struct token *token = NULL; struct sanlk_resource res; int token_len, disks_len; int j, fd, rv, result; diff --git a/src/diskio.c b/src/diskio.c index 32f1b86..ec702f9 100644 --- a/src/diskio.c +++ b/src/diskio.c @@ -112,7 +112,7 @@ int open_disks_fd(struct sync_disk *disks, int num_disks) { struct sync_disk *disk; int num_opens = 0; - int d, fd, rv; + int d, fd, rv = -1; for (d = 0; d < num_disks; d++) { disk = &disks[d]; @@ -217,7 +217,7 @@ int open_disks(struct sync_disk *disks, int num_disks) { struct sync_disk *disk; int num_opens = 0; - int d, err, rv; + int d, err, rv = -1; uint32_t ss = 0; for (d = 0; d < num_disks; d++) { diff --git a/src/lockspace.c b/src/lockspace.c index 812264b..3432555 100644 --- a/src/lockspace.c +++ b/src/lockspace.c @@ -396,6 +396,7 @@ static void *lockspace_thread(void *arg_in) if (rv < 0) { log_erros(sp, "open_disk %s error %d", sp->host_id_disk.path, rv); acquire_result = -ENODEV; + delta_result = -1; goto set_status; } opened = 1; @@ -404,12 +405,14 @@ static void *lockspace_thread(void *arg_in) if (sp->align_size < 0) { log_erros(sp, "direct_align error"); acquire_result = sp->align_size; + delta_result = -1; goto set_status; } sp->lease_status.renewal_read_buf = malloc(sp->align_size); if (!sp->lease_status.renewal_read_buf) { acquire_result = -ENOMEM; + delta_result = -1; goto set_status; } diff --git a/src/resource.c b/src/resource.c index ba2dcb6..bb4f787 100644 --- a/src/resource.c +++ b/src/resource.c @@ -370,8 +370,10 @@ static int _release_token(struct task *task, struct token *token, int opened, in goto out; } - if (nodisk) + if (nodisk) { + rv = SANLK_OK; goto out; + } if (!opened) { rv = open_disks_fd(token->disks, token->r.num_disks);

12 years, 1 month

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Changes to 'refs/tags/sanlock-2.0'

by David Teigland

Changes since the dawn of time: Daniel P. Berrange (15): Fix const-ness of many APIs. Fix warnings in watchdog module Fix function prototypes for no-arg methods Remove use of 'index' as a variable name Make many functions static Fix missing include in logging file Annotate many unused parameters to avoid warnings Remove redundant redeclaration of 'to' variable Fix args to execv() Remove redundant arg to 'run_command' Rename optarg to optionarg to avoid clashing with getopt.h Disable the read_request method since it is unused Add many more compiler warning flags & safety checks Hard code a sector size of 512 if the lease volume is a regular file Ensure libsanlock.so is built with debug/warning flags David Teigland (322): sync_manager: initial commit sync_manager: misc updates sync_manager: misc updates sync_manager: misc updates sync_manager: misc updates sync_manager: add more logging sync_manager: misc updates sync_manager: misc updates sync_manager: num_hosts/MAX_HOSTS stuff daemon: reworking notions of resource_id/token_name sync_manager: resource lockfiles sync_manager: lease arg processing sync_manager: Began multiple lease support sync_manager: use first command line arg as action sync_manager: leader record changes and verify sync_manager: clean up released leases sync_manager: move functions around sync_manager: add more tool actions sync_manager: naming changes sync_manager: separate token index and id sync_manager: fix index usage and other misc sync_manager: use pthread cond in acquire sync_manager: write all log entries sync_manager: simplify polling sync_manager: fix waitpid use sync_manager: acquire can fail early sync_manager: write log entries at exit sync_manager: add test program sync_manager: move secondary pid check sync_manager: fix disk paxos contention devcount: fix verify checks sync_manager: add GPL license file sync_manager: fix leader block offsets sync_manager: increase COMMAND_MAX sync_manager: renewal should verify sync_manager: use sector size from libblkid sync_manager: use a real checksum function sync_manager: add libblkid to spec file sync_manager: print status info sync_manager: one watchdog file per lease sync_manager: lease_threads handle watchdog files sync_manager: fix/add some text/comments sync_manager: refactor read/write sync_manager: move disk io functions sync_manager: remove token arg sync_manager: rename paxos_disk sync_disk sync_manager: add aio read/write sync_manager: make io_timeout_seconds a diskio arg sync_manager: forgot to add new files sync_manager: use log thread sync_manager: client connections sync_manager: connection processing sync_manager: send/recv pid sync_manager: add write_sectors sync_manager: restructuring sync_manager: write_sectors code factoring sync_manager: daemonize sync_manager: releasing leases sync_manager: async releasing sync_manager: release fixes sync_manager: add direct and indirect acquire/release sync_manager: reacquire resources sync_manager: move code sync_manager: same pid may reacquire resource sync_manager: lease migration sync_manager: handle client errors sync_manager: improve error handling sync_manager: host_id leases sync_manager: remove empty files sync_manager: print initialization info sync_manager: rename files sync_manager: clean up header org sync_manager: delta_lease implementation sync_manager: accept offset units sync_manager: fix up init output sync_manager: put back watchdog calls sync_manager: fix start_host_id error paths sync_manager: add log_error's for watchdog file errors sync_manager: actual timeouts sync_manager: change timeouts on cmd line sanlock: create new external api sanlock: build libsanlock sanlock: use MAX_LEASES everywhere sanlock: add libvirt plugin sanlock plugin: couple minor fixes sanlock: clean up /var file names sanlock plugin: fix symbol needed by libvirt sanlock: add some debug output sanlock plugin: fix uuid copy sanlock plugin: fix names sanlock: add "owner_name" sanlock: fix renewal checks sanlock: clean up host_id types sanlock: set_host_id command sanlock: fix killing pids sanlock: add status command sanlock: set version to 1.0 sanlock: delta_lease cleanup sanlock: changing num_hosts sanlock: add dump command sanlock: renewal timings sanlock: add direct option sanlock: check for watchdog file sanlock: recovery fixes lock_driver_sanlock: fix compile problems sanlock: improve command options sanlock: tidying help text sanlock: move binary to /usr/sbin sanlock: add init script sanlock: fix sigterm shutdown sanlock: init stop sanlock: add wdtest command sanlock.spec: new url lock_driver_sanlock: remove close sanlock: introduce lockspaces lock_driver_sanlock: remove files sanlock: better logging functions sanlock: misc log message sanlock.spec: sbin not libexec sanlock init: remove watchdog reference wdmd: watchdog multiplexing daemon sanlock: add code to use wdmd sanlock/wdmd: use wdmd in sanlock sanlock/wdmd: add copyright header to source files sanlock: rename sanlock source dir sanlock: move tests dir move COPYING file wdmd: use signalfd for signal handling Fix Makefile comments wdmd: fix daemon debug option wdmd: add init script sanlock.spec: updates sanlock.spec: src dir sanlock: build with uninstalled libwdmd sanlock: version 1.1 sanlock: high priority options wdmd: high priority options sanlock: return migration state sanlock: migration.txt describes libvirt/sanlock steps libsanlock: include admin functions sanlock: fix host_id expiration check sanlock: migration working devcount: migrate test sanlock: setowner improvements sanlock: migrate to target fix sanlock: fix wdmd stop order sanlock: various fixes sanlock: remove wdtest sanlock: remove migration sanlock: clean up command return data sanlock: add resource string conversion functions sanlock: rework internal structs devcount: add relock test sanlock: fix release and inquire sanlock: add_lockspace EEXIST sanlock: rework client handling sanlock: clean up warnings sanlock: debug message changes sanlock: add lockspace checks wdmd: enable test scripts sanlock: add str_to_lockspace to lib WIP devcount migrate devcount: new migrate test sanlock: read_id and live_id commands sanlock: check lockspace name and host_id sanlock: remove remaining cluster_mode sanlock: add libsanlock_direct devcountn: start multiple devcount tests devcount: small changes sanlock: new return values sanlock: misc changes and fix sanlock: log error of full bad block sanlock: interval between renewal checks sanlock: renewal changes sanlock: fix log_dump sanlock: fix find_client_pid sanlock: fix host_id reads from paxos_acquire sanlock: init with one write devcount: improve output devcount: new pause/resume devcount: add expire test sanlock: correct paxos usage sanlock: direct read_leader sanlock: paxos delays sanlock: use thread pool sanlock: client status output format changes sanlock: fix inquire of dead pid sanlock: use native linux aio sanlock: i/o changes sanlock: aio changes sanlock: reduce paxos acquire read ops sanlock: quiet error case sanlock: don't free aio buf until event completes sanlock: io timeout related changes sanlock: read dblocks in single aligned io sanlock: add sanlock_restrict api sanlock: add sanlock_direct_sector_size api sanlock: add checksum to dblocks sanlock: fix init restart sanlock: don't release tokens in dead lockspace sanlock: fix adding lockspace sanlock: official 1MB/8MB alignment devcount: use aio in init libsanlock: link with LDFLAGS sanlock: increase version to 1.3 sanlock/wdmd: shut up warnings sanlock: fix libwdmd linking remove spec file sanlock: use a completed read after renewal timeout sanlock: use unique host name in delta leases sanlock: remove sector_size api sanlock: abort delta wait on shutdown sanlock: fix add_lockspace failure sanlk_load: add new test sanlock: fix recv and inquire sanlock: initial pid_dead check in acquire sanlock: release 1.4 sanlock: generate a uuid for host id sanlock: return -EINPROGRESS from add_lockspace sanlk_load: periodically kill and replace a pid sanlock: zero num_hosts uses DEFAULT_MAX_HOSTS tests: misc changes sanlock: break paxos_acquire wait loop sanlock: increase log line to 512 bytes sanlock: change a log_error to log_debug sanlock: fail host_id when corrupted sanlock: release 1.5 sanlock: release 1.6 sanlock: handle colon escaping in path strings wdmd: add option for high priority wdmd: use accept4 with SOCK_NONBLOCK wdmd: tidy sun_addr snprintf wdmd: pid and sock file changes wdmd: add man page wdmd: disable test scripts sanlock: use accept4 with SOCK_NONBLOCK sanlock: tidy sun_addr snprintf sanlock: add explicit -luuid sanlock: pid and sock file changes sanlock: add man page sanlock/wdmd: improve mkdir of run dir wdmd: new build flags sanlock: new build flags sanlock/wdmd: use monotonic time sanlock: build with pie sanlock/wdmd: nonblocking listening/accept sanlock: add missing monotime files sanlock: update man page sanlock: man page update sanlock: update man page and help text sanlock: print connections limit release: sanlock 1.7 makefile: install mode for man pages sanlock: read align_size in renewal sanlock: check other host_id leases sanlock: minor fixes and cleanups sanlock: add request api/cmd sanlock: crc code tidying sanlock/wdmd: add license header to files sanlock: create libsanlock_client sanlock: move client code remove COPYING file sanlock: remove internal header from sanlock_sock libsanlock_client: use LGPLv2+ libwdmd: use LGPLv2+ sanlock_rv.h: switch to LGPLv2+ README.license: document licenses sanlock: client align and init sanlock: write request record sanlock: request struct magic and version numbers sanlock: set bitmap for requests sanlock: examine resource requests sanlock: update man page sanlock: remove old comment sanlock: renaming functions sanlock: optimize paxos wait sanlock: use flags in struct resource sanlock: restructure lockspace checks sanlock: remove BLOCK_WD force mode libsanlock: fix function stubs sanlock: new status and host_status sanlock: improve status output sanlock: status output sorting sanlock: SIGTERM and SIGKILL for REQ_KILL_PID sanlock: add flag RESTRICT_SIGKILL sanlock: setup fewer aio events sanlock: move cmd processing sanlock: suppress log messages sanlock: rename source files sanlock: improve killing pids sanlock: fix log_dump version 1.8 sanlock: quick host_id reacquire sanlock: add force option to shutdown command simpler copyright line default to GPLv2+ for our original files sanlock: improve daemon permission errors add systemd files fixing up init stuff release 1.9 sanlock: setmode Revert "sanlock: setmode" sanlock: fix error exit sanlock: fix debug line init scripts: fix path to restorecon sanlock: shared mode for leases sanlock: fix missing close_disks sanlock: fix problem in paxos sanlock: add paxos sanity check sanlock: fix leaking fd sanlock: change to paxos algorithm sanlock: change ondisk version sanlock: remove log noise sanlock: ignore SIGTERM if lockspaces exist sanlock: quiet more error messages sanlk_load: munging variable names sanlk_load: add shared locks sanlock: kill client connection on recv error sanlk_load: ignore release errors sanlock: set sector_size in shared tokens sanlock man page: mention SH release 2.0 David Weber (2): Fix order of linking Install another symlink to shared library Fabio M. Di Nitto (5): build: sanlock should link with libsanlock build: install shared lib header files and fix DESTDIR usage build: drop rpm target spec file: do first cut for total spec file build: fix linking with libsanlock and install target Federico Simoncelli (39): rpm: sync specfile with fedora rpm: add sanlock_admin.h header rpm: add the lib package, install the initscripts python: remove unused python code python: add python binding python: release the gil during sanlock operations python: wrap sanlock extension with a module rpm: add python binding package python: pass a lockspace copy to str_to_lockspace makefile: fix install typo rpm: add sanlock_direct header python: add sanlock init functions and exception direct: close disks after initialization python: register process only once daemon: configurable socket permissions rpm: add sanlock user and group python: exceptions must contain the errno rpm: add missing libaio-devel dependency rpm: add daemon options in the init file python: add missing aio library python: add get_alignment function libs: include libsanlock_direct into libsanlock python: align num_hosts and max_hosts defaults python: expose sanlock file descriptor python: improve error reporting python: parse lockspaces and resources natively python: add usage example python: initial support for sanlock errors python: document the sanlock module python: module cleanup build: fix documentation install path client: return appropriate errno on failure python: expose errno in the exception python: acquire leases for other processes sanlock: implement the inq_lockspace command python: add the inq_lockspace command binding misc: run sanlock daemon as sanlock user wdmd: use getopt to parse the command line wdmd: make socket group ownership configurable Saggi Mizrahi (21): Added the begining of the testing and debugging tools Better handling of max hosts sync_manager: Updated tests to work with new lease struct sync_manager: fixed skipping first arg in command sync_manager: acquire and release actions sync_manager: minor fixes sync_manager: renamed stuff sync_manager: made acquire synchronous again sync_manager: added set_host_id action sync_manager: use kill(0) for secondary pid check sync_manager: make rpm and install sync_manager: spec file update sync_manager: Allow longer resource names sync_manager: allow repeated set_host_id sync_manager: Added escaping for the leases arg sync_manager: Created the python bindings for sync_manager sync_manager: listener socket permissions sync_manager: Updated python binding and tests sync_manager: Made 'token' a const in log_level sync_manager: refactor messaging system sync_manager: use getsockopt PEERCRED

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3 commits - src/main.c src/resource.c src/sanlock.8 wdmd/main.c

by David Teigland

src/main.c | 2 +- src/resource.c | 8 ++++++-- src/sanlock.8 | 2 +- wdmd/main.c | 2 +- 4 files changed, 9 insertions(+), 5 deletions(-) New commits: commit 2337dc701058058e588b4aa28ca18cc61c44f267 Author: David Teigland <teigland(a)redhat.com> Date: Fri Mar 2 15:13:24 2012 -0600 release 2.0 Signed-off-by: David Teigland <teigland(a)redhat.com> diff --git a/src/main.c b/src/main.c index 290f65d..af82320 100644 --- a/src/main.c +++ b/src/main.c @@ -50,7 +50,7 @@ #include "client_cmd.h" #include "cmd.h" -#define RELEASE_VERSION "1.9" +#define RELEASE_VERSION "2.0" struct thread_pool { int num_workers; diff --git a/wdmd/main.c b/wdmd/main.c index 6a3815e..1bd517a 100644 --- a/wdmd/main.c +++ b/wdmd/main.c @@ -41,7 +41,7 @@ #define GNUC_UNUSED __attribute__((__unused__)) #endif -#define RELEASE_VERSION "1.9" +#define RELEASE_VERSION "2.0" #define DEFAULT_TEST_INTERVAL 10 #define DEFAULT_FIRE_TIMEOUT 60 commit f8dc878ba2d813969c7565f489be8255414f5b30 Author: David Teigland <teigland(a)redhat.com> Date: Fri Mar 2 15:10:20 2012 -0600 sanlock man page: mention SH Signed-off-by: David Teigland <teigland(a)redhat.com> diff --git a/src/sanlock.8 b/src/sanlock.8 index fd8accb..5a2fb7c 100644 --- a/src/sanlock.8 +++ b/src/sanlock.8 @@ -431,7 +431,7 @@ RESOURCE option string with version .BR \-r " " \fIlockspace_name\fP:\fIresource_name\fP:\fIpath\fP:\fIoffset\fP:\fIlver\fP .P -.IR lver " leader version" +.IR lver " leader version or SH for shared lease" .SS Defaults commit 6214f2e1b4e3ab0d9c33ac9fe4d8c3160f309711 Author: David Teigland <teigland(a)redhat.com> Date: Fri Mar 2 15:07:12 2012 -0600 sanlock: set sector_size in shared tokens New tokens on existing shared resources need to have sector_size set in the disk since they aren't opened. release will expect the sector_size to be set. Signed-off-by: David Teigland <teigland(a)redhat.com> diff --git a/src/resource.c b/src/resource.c index 7032e6d..ba2dcb6 100644 --- a/src/resource.c +++ b/src/resource.c @@ -147,6 +147,8 @@ static int set_mode_block(struct task *task, struct token *token, disk = &token->disks[0]; iobuf_len = disk->sector_size; + if (!iobuf_len) + return -EINVAL; p_iobuf = &iobuf; @@ -199,6 +201,8 @@ static int read_mode_block(struct task *task, struct token *token, disk = &token->disks[0]; iobuf_len = disk->sector_size; + if (!iobuf_len) + return -EINVAL; p_iobuf = &iobuf; @@ -323,8 +327,7 @@ static int release_disk(struct task *task, struct token *token, return rv; /* SANLK_OK */ } -static int _release_token(struct task *task, struct token *token, int opened, - int nodisk) +static int _release_token(struct task *task, struct token *token, int opened, int nodisk) { struct resource *r = token->resource; uint64_t lver; @@ -550,6 +553,7 @@ int acquire_token(struct task *task, struct token *token) if (r && (token->acquire_flags & SANLK_RES_SHARED) && (r->flags & R_SHARED)) { /* multiple shared holders allowed */ log_token(token, "acquire_token add shared"); + copy_disks(&token->r.disks, &r->r.disks, token->r.num_disks); token->resource = r; list_add(&token->list, &r->tokens); pthread_mutex_unlock(&resource_mutex);

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invalid lockspace found

by Frido Roose

Hello, I'm not sure if this is the appropriate place to ask, but we're running libvirtd with the sanlock plugin. Ater a while, I noticed the following in the sanlock logfile after I couldn't create a new VM: 838555 sanlock daemon started aio 1 10 renew 20 80 host 144ce1f8-ddf7-4139-8e97-291aeddd7b81.arqua time 1330086549 838556 s1 lockspace __LIBVIRT__DISKS__:13:/var/lib/libvirt/sanlock/__LIBVIRT__DISKS__:0 838616 s1:r1 resource __LIBVIRT__DISKS__:7cf11c7a5da5d530521646d738636e84:/var/lib/libvirt/sanlock/7cf11c7a5da5d530521646d738636e84:0 for 1,9,31377 838632 s1:r2 resource __LIBVIRT__DISKS__:b2ad1e0874ba7c316cc848d3e0a98439:/var/lib/libvirt/sanlock/b2ad1e0874ba7c316cc848d3e0a98439:0 for 2,12,31499 839477 s1 check_our_lease warning 60 last_success 839417 839478 s1 check_our_lease warning 61 last_success 839417 839479 s1 check_our_lease warning 62 last_success 839417 839480 s1 check_our_lease warning 63 last_success 839417 839481 s1 check_our_lease warning 64 last_success 839417 839482 s1 check_our_lease warning 65 last_success 839417 839483 s1 check_our_lease warning 66 last_success 839417 839484 s1 check_our_lease warning 67 last_success 839417 839485 s1 check_our_lease warning 68 last_success 839417 839486 s1 check_our_lease warning 69 last_success 839417 839487 s1 check_our_lease warning 70 last_success 839417 839488 s1 check_our_lease warning 71 last_success 839417 839489 s1 check_our_lease warning 72 last_success 839417 839490 s1 check_our_lease warning 73 last_success 839417 839491 s1 check_our_lease warning 74 last_success 839417 839492 s1 check_our_lease warning 75 last_success 839417 839493 s1 check_our_lease warning 76 last_success 839417 839494 s1 check_our_lease warning 77 last_success 839417 839495 s1 check_our_lease warning 78 last_success 839417 839496 s1 check_our_lease warning 79 last_success 839417 839497 s1 check_our_lease failed 80 841667 s1 renewed 841667 delta_length 2229 too long 841671 r3 cmd_acquire 1,9,7234 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ 841672 r4 cmd_acquire 2,10,7268 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ 841674 r5 cmd_acquire 2,10,7765 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ 841675 r6 cmd_acquire 1,9,7735 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ 842012 r7 cmd_acquire 1,9,8495 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ 842013 r8 cmd_acquire 1,9,8622 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ 842015 r9 cmd_acquire 1,9,9130 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ 842016 r10 cmd_acquire 1,9,9241 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ 842019 r11 cmd_acquire 1,9,9669 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ 842020 r12 cmd_acquire 2,10,9697 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ 842021 r13 cmd_acquire 1,9,10146 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ 842022 r14 cmd_acquire 1,9,10240 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ 842115 r15 cmd_acquire 1,9,10755 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ 842117 r16 cmd_acquire 1,9,11008 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ 842410 r17 cmd_acquire 1,9,11511 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ 842410 r18 cmd_acquire 1,9,11616 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ 843609 r19 cmd_acquire 1,9,12835 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ 843616 r20 cmd_acquire 1,9,13093 invalid lockspace found -1 failed 0 name __LIBVIRT__DISKS__ So for some reason, the lockspace became invalid (and it looks like the host lease was not renewed). Running sanlock-1.8-2.el6.x86_64. Anything else I can check? Best regards, Frido

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sanlock-devel March 2012