Hi. I want to upgrade a cluster from 4.6 to 4.9 To do this, I raised the host with EL8 and launched ipa-client-install is this the right way, without data loss and service downtime? In the logs: tail -f /var/log/dirsrv/slapd-OPENTECH-LOCAL/access [02/Sep/2021:20:09:48.282984535 +0700] conn=84 op=6 SRCH base="cn=schema" scope=0 filter="(objectClass=*)" attrs="objectClasses" [02/Sep/2021:20:09:48.366825074 +0700] conn=84 op=6 RESULT err=0 tag=101 nentries=1 wtime=0.000158968 optime=0.083844272 etime=0.083999242 [02/Sep/2021:20:09:48.368297195 +0700] conn=84 op=7 SRCH base="cn=schema" scope=0 filter="(objectClass=*)" attrs="attributeTypes" [02/Sep/2021:20:09:48.455352207 +0700] conn=84 op=7 RESULT err=0 tag=101 nentries=1 wtime=0.000181242 optime=0.087049680 etime=0.087227596 [02/Sep/2021:20:09:48.598806315 +0700] conn=84 op=8 SRCH base="cn=schema" scope=0 filter="(objectClass=*)" attrs="objectClasses" [02/Sep/2021:20:09:48.682435023 +0700] conn=84 op=8 RESULT err=0 tag=101 nentries=1 wtime=0.000253118 optime=0.083640981 etime=0.083890259 [02/Sep/2021:20:09:48.683959959 +0700] conn=84 op=9 SRCH base="cn=schema" scope=0 filter="(objectClass=*)" attrs="attributeTypes" [02/Sep/2021:20:09:48.770110056 +0700] conn=84 op=9 RESULT err=0 tag=101 nentries=1 wtime=0.000208691 optime=0.086154930 etime=0.086360171 [02/Sep/2021:20:09:48.909866069 +0700] conn=84 op=10 EXT oid="2.16.840.1.113730.3.5.5" name="replication-multimaster-extop" [02/Sep/2021:20:09:48.912490317 +0700] conn=84 op=10 RESULT err=0 tag=120 nentries=0 wtime=0.000289908 optime=0.002650238 etime=0.002936579 [02/Sep/2021:20:10:48.922904521 +0700] conn=84 op=11 UNBIND [02/Sep/2021:20:10:48.922965013 +0700] conn=84 op=11 fd=66 closed error - U1 [02/Sep/2021:20:14:48.918514584 +0700] conn=85 fd=66 slot=66 connection from 100.100.101.32 to 100.100.101.40 [02/Sep/2021:20:14:48.919643414 +0700] conn=85 op=0 BIND dn="" method=sasl version=3 mech=GSSAPI [02/Sep/2021:20:14:48.924271354 +0700] conn=85 op=0 RESULT err=14 tag=97 nentries=0 wtime=0.000226790 optime=0.004647939 etime=0.004872681, SASL bind in progress [02/Sep/2021:20:14:48.924947480 +0700] conn=85 op=1 BIND dn="" method=sasl version=3 mech=GSSAPI [02/Sep/2021:20:14:48.926146732 +0700] conn=85 op=1 RESULT err=14 tag=97 nentries=0 wtime=0.000108403 optime=0.001218993 etime=0.001325062, SASL bind in progress [02/Sep/2021:20:14:48.926456549 +0700] conn=85 op=2 BIND dn="" method=sasl version=3 mech=GSSAPI [02/Sep/2021:20:14:48.928285095 +0700] conn=85 op=2 RESULT err=0 tag=97 nentries=0 wtime=0.000100271 optime=0.001837886 etime=0.001936360 dn="cn=ldap/ipa.opentech.local(a)opentech.local,cn=config" [02/Sep/2021:20:14:48.928732360 +0700] conn=85 op=3 SRCH base="" scope=0 filter="(objectClass=*)" attrs="supportedControl supportedExtension" [02/Sep/2021:20:14:48.930310374 +0700] conn=85 op=3 RESULT err=0 tag=101 nentries=1 wtime=0.000268088 optime=0.001582573 etime=0.001848120 [02/Sep/2021:20:14:48.930713077 +0700] conn=85 op=4 SRCH base="" scope=0 filter="(objectClass=*)" attrs="supportedControl supportedExtension" [02/Sep/2021:20:14:48.931502374 +0700] conn=85 op=4 RESULT err=0 tag=101 nentries=1 wtime=0.000163012 optime=0.000794216 etime=0.000955217 [02/Sep/2021:20:14:48.931924135 +0700] conn=85 op=5 EXT oid="2.16.840.1.113730.3.5.12" name="replication-multimaster-extop" [02/Sep/2021:20:14:48.932420631 +0700] conn=85 op=5 RESULT err=0 tag=120 nentries=0 wtime=0.000175640 optime=0.000511504 etime=0.000685664 [02/Sep/2021:20:14:48.933224132 +0700] conn=85 op=6 SRCH base="cn=schema" scope=0 filter="(objectClass=*)" attrs="objectClasses" [02/Sep/2021:20:14:49.020265304 +0700] conn=85 op=6 RESULT err=0 tag=101 nentries=1 wtime=0.000292725 optime=0.087050480 etime=0.087328584 [02/Sep/2021:20:14:49.021831595 +0700] conn=85 op=7 SRCH base="cn=schema" scope=0 filter="(objectClass=*)" attrs="attributeTypes" [02/Sep/2021:20:14:49.108675770 +0700] conn=85 op=7 RESULT err=0 tag=101 nentries=1 wtime=0.000198623 optime=0.086851160 etime=0.087044647 [02/Sep/2021:20:14:49.302421780 +0700] conn=85 op=8 SRCH base="cn=schema" scope=0 filter="(objectClass=*)" attrs="objectClasses" [02/Sep/2021:20:14:49.386806785 +0700] conn=85 op=8 RESULT err=0 tag=101 nentries=1 wtime=0.000241187 optime=0.084394151 etime=0.084629811 [02/Sep/2021:20:14:49.388020857 +0700] conn=85 op=9 SRCH base="cn=schema" scope=0 filter="(objectClass=*)" attrs="attributeTypes" [02/Sep/2021:20:14:49.472898588 +0700] conn=85 op=9 RESULT err=0 tag=101 nentries=1 wtime=0.000201533 optime=0.084883308 etime=0.085081048 [02/Sep/2021:20:14:49.673264389 +0700] conn=85 op=10 EXT oid="2.16.840.1.113730.3.5.5" name="replication-multimaster-extop" [02/Sep/2021:20:14:49.675188470 +0700] conn=85 op=10 RESULT err=0 tag=120 nentries=0 wtime=0.000182362 optime=0.001932648 etime=0.002112039 [02/Sep/2021:20:15:49.686722184 +0700] conn=85 op=11 UNBIND [02/Sep/2021:20:15:49.686787256 +0700] conn=85 op=11 fd=66 closed error - U1 Configuring directory server (dirsrv). Estimated time: 30 seconds [1/38]: creating directory server instance [2/38]: tune ldbm plugin [3/38]: adding default schema [4/38]: enabling memberof plugin [5/38]: enabling winsync plugin [6/38]: configure password logging [7/38]: configuring replication version plugin [8/38]: enabling IPA enrollment plugin [9/38]: configuring uniqueness plugin [10/38]: configuring uuid plugin [11/38]: configuring modrdn plugin [12/38]: configuring DNS plugin [13/38]: enabling entryUSN plugin [14/38]: configuring lockout plugin [15/38]: configuring topology plugin [16/38]: creating indices [17/38]: enabling referential integrity plugin [18/38]: configuring certmap.conf [19/38]: configure new location for managed entries [20/38]: configure dirsrv ccache and keytab [21/38]: enabling SASL mapping fallback [22/38]: restarting directory server [23/38]: creating DS keytab [24/38]: ignore time skew for initial replication [25/38]: setting up initial replication Starting replication, please wait until this has completed. Update in progress, 12194 seconds elapsed