On Tue, 2018-08-21 at 14:38 +0200, Jan Kowalsky wrote:

Hi Rob,

thanks for answer.

Am 21.08.2018 um 14:05 schrieb Rob Crittenden:

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Jan Kowalsky wrote:

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Hi all,

we still struggeling with multiple problems in our 389-ds setup.

I already opened the threads "disk i/o: very high write rates" and "ldapsearch performance problem".

Another (the biggest) problem is, that dirsrv becomes suddenly totally unresponsive. The server is still running, no errors in error-log

• but

ldap queries are not answered and run in timeouts.

Seeing an access log could help, and there are some tools to help dump the in memory access log when the hang happens.

I plan to write in profiling soon (if I get the freetime ....) so that could help too,

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The only way is to restart it. After restart everything is fine - for a while. But sometimes it hangs immediately again after restart.

I logged a straces while dirsrv was unresponsive: https://nextcloud.datenkollektiv.net/s/qD8ojQZztMqbQtp

You want to follow these instructions and file a bug with the output,

https://directory.fedoraproject.org/docs/389ds/FAQ/faq.html#debugging-hangs

Unfortunately debugging with gdb and pstack doesn't work in my environment (Debian Jessie The debugging symbols are installed - but something seems to be wrong:

gdb -ex 'set confirm off' -ex 'set pagination off' -ex 'thread apply all bt full' -ex 'quit' /usr/sbin/ns-slapd `pidof ns-slapd`

Thread 207 (Thread 0x7f2eb4f51700 (LWP 25429)): #0 0x00007f2f661d7893 in select () from /lib/x86_64-linux- gnu/libc.so.6 No symbol table info available.

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dpkg -l|grep 389-ds

ii 389-ds 1.3.3.5-4+deb8u1 all 389 Directory Server suite - metapackage ii 389-ds-base 1.3.3.5-4+deb8u1 amd64 389 Directory Server suite - server ii 389-ds-base-dbg 1.3.3.5-4+deb8u1 amd64 389 Directory Server suite - server debugging symbols ii 389-ds-base-libs 1.3.3.5-4+deb8u1 amd64 389 Directory Server suite - libraries ii 389-ds-base-libs-dbg 1.3.3.5-4+deb8u1 amd64 389 Directory Server suite - library debugging symbols ii 389-ds-console 1.2.7-1 all 389 Directory Server Management Console ii 389-dsgw 1.1.11-1 amd64 389 Directory Server Gateway

That's a pretty old version now, we have a lot of fixes since there. Are there some debian updates perhaps to help?

I'll try to update to stretch - maybe the dgb packages in jessie are buggy. Or any other idea?

Thanks Jan _______________________________________________ 389-users mailing list -- 389-users@lists.fedoraproject.org To unsubscribe send an email to 389-users-leave@lists.fedoraproject.org Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/389-users@lists.fedoraproject....