Ricardo Mendes via FreeIPA-users wrote:
> Hi Rob thank you for your replies.
> 
> So I tried to add the replica again in order to get the 389-ds logs.
> 
> Regarding the ipa versions:
> 
> [root@ns1 ~]# rpm -q ipa-server ipa-client 389-ds-base pki-ca krb5-server
> ipa-server-4.9.6-10.module+el8.5.0+13587+92118e57.x86_64
> ipa-client-4.9.6-10.module+el8.5.0+13587+92118e57.x86_64
> 389-ds-base-1.4.3.23-12.module+el8.5.0+13329+4096c77a.x86_64
> pki-ca-10.11.2-4.module+el8.5.0+13827+5b1d191d.noarch
> krb5-server-1.18.2-14.el8.x86_64
> 
> [root@ns2 ~]# rpm -q ipa-server ipa-client 389-ds-base pki-ca krb5-server
> ipa-server-4.9.6-10.module+el8.5.0+13587+92118e57.x86_64
> ipa-client-4.9.6-10.module+el8.5.0+13587+92118e57.x86_64
> 389-ds-base-1.4.3.23-12.module+el8.5.0+13329+4096c77a.x86_64
> pki-ca-10.11.2-2.module+el8.5.0+12735+8eb38ccc.noarch
> krb5-server-1.18.2-14.el8.x86_64
> 
> [root@ns3 ~]# rpm -q ipa-server ipa-client 389-ds-base pki-ca krb5-server
> ipa-server-4.9.6-10.module+el8.5.0+13587+92118e57.x86_64
> ipa-client-4.9.6-10.module+el8.5.0+13587+92118e57.x86_64
> 389-ds-base-1.4.3.23-12.module+el8.5.0+13329+4096c77a.x86_64
> pki-ca-10.11.2-4.module+el8.5.0+13827+5b1d191d.noarch
> krb5-server-1.18.2-14.el8.x86_64
> 
> 
> 389-ds log "errors"- on the ns3 server I get these:
> ...
> [03/Mar/2022:16:48:00.624581992 +0000] - WARN - NSACLPlugin - acl_parse - The 
> ACL target cn=vaults,cn=kra,dc=dom0,dc=io does not exist
> [03/Mar/2022:16:48:00.648556508 +0000] - WARN - NSACLPlugin - acl_parse - The 
> ACL target cn=casigningcert 
> cert-pki-ca,cn=ca_renewal,cn=ipa,cn=etc,dc=dom0,dc=io does not exist
> [03/Mar/2022:16:48:00.649871391 +0000] - WARN - NSACLPlugin - acl_parse - The 
> ACL target cn=casigningcert 
> cert-pki-ca,cn=ca_renewal,cn=ipa,cn=etc,dc=dom0,dc=io does not exist
> [03/Mar/2022:16:48:00.812093673 +0000] - WARN - NSACLPlugin - acl_parse - The 
> ACL target cn=automember rebuild membership,cn=tasks,cn=config does not exist
> [03/Mar/2022:16:48:00.827192127 +0000] - ERR - cos-plugin - cos_dn_defs_cb - 
> Skipping CoS Definition cn=Password Policy,cn=accounts,dc=dom0,dc=io--no CoS 
> Templates found, which should be added before the CoS Definition.
> [03/Mar/2022:16:48:00.900316830 +0000] - ERR - set_krb5_creds - Could not get 
> initial credentials for principal [ldap/[email protected]] in keytab 
> [FILE:/etc/dirsrv/ds.keytab]: -1765328324 (Generic error (see e-text))
> [03/Mar/2022:16:48:00.919565091 +0000] - ERR - schema-compat-plugin - 
> schema-compat-plugin tree scan will start in about 5 seconds!
> [03/Mar/2022:16:48:00.954303578 +0000] - INFO - slapd_daemon - slapd started. 
>  Listening on All Interfaces port 389 for LDAP requests
> [03/Mar/2022:16:48:00.956458369 +0000] - INFO - slapd_daemon - Listening on 
> All Interfaces port 636 for LDAPS requests
> [03/Mar/2022:16:48:00.957156367 +0000] - INFO - slapd_daemon - Listening on 
> /var/run/slapd-DOM0-IO.socket for LDAPI requests
> [03/Mar/2022:16:48:01.399627603 +0000] - ERR - dna-plugin - 
> dna_get_remote_config_info - Using LDAP protocol, but the non-secure port is 
> not defined.
> [03/Mar/2022:16:48:01.400766987 +0000] - ERR - dna-plugin - 
> dna_request_range: Unable to retrieve replica bind credentials.
> [03/Mar/2022:16:48:05.945122138 +0000] - ERR - schema-compat-plugin - 
> warning: no entries set up under cn=computers, cn=compat,dc=dom0,dc=io
> [03/Mar/2022:16:48:05.947292612 +0000] - ERR - schema-compat-plugin - 
> Finished plugin initialization.
> [03/Mar/2022:16:50:11.843513650 +0000] - ERR - dna-plugin - _dna_pre_op_add - 
> No more values available!!
> [03/Mar/2022:16:50:11.870225283 +0000] - ERR - ipa_sidgen_add_post_op - [file 
> ipa_sidgen.c, line 128]: Missing target entry.

Looking at the 389-ds source it looks like it has determined that the
range has overflowed and so it fails. This despite that your range is
99% unused.

> 
> And on ns1 (the master to which ns3 is connected to):
> ...
> [03/Mar/2022:16:46:30.764506978 +0000] - INFO - NSMMReplicationPlugin - 
> bind_and_check_pwp - agmt="cn=meTons3.dom0.io" (ns3:389): Replication bind 
> with GSSAPI auth resumed
> [03/Mar/2022:16:47:02.271983007 +0000] - WARN - NSMMReplicationPlugin - 
> acquire_replica - agmt="cn=caTons3.dom0.io" (ns3:389): Unable to receive the 
> response for a startReplication extended operation to consumer (Can't contact 
> LDAP server). Will retry later.
> [03/Mar/2022:16:47:18.401932405 +0000] - WARN - NSMMReplicationPlugin - 
> acquire_replica - agmt="cn=meTons3.dom0.io" (ns3:389): Unable to receive the 
> response for a startReplication extended operation to consumer (Can't contact 
> LDAP server). Will retry later.
> [03/Mar/2022:16:47:33.173387566 +0000] - ERR - 
> repl_version_plugin_recv_acquire_cb - [file ipa_repl_version.c, line 119]: 
> Incompatible IPA versions, pausing replication. This server: "20100614120000" 
> remote server: "(null)".
> [03/Mar/2022:16:47:33.665069742 +0000] - INFO - NSMMReplicationPlugin - 
> bind_and_check_pwp - agmt="cn=meTons3.dom0.io" (ns3:389): Replication bind 
> with GSSAPI auth resumed
> [03/Mar/2022:16:47:37.010415940 +0000] - WARN - content-sync-plugin - 
> sync_update_persist_betxn_pre_op - DB retried operation targets 
> "changenumber=4245,cn=changelog" (op=0x7f31a94cc400 idx_pl=1) => op not 
> changed in PL
> [03/Mar/2022:16:47:37.282297165 +0000] - WARN - content-sync-plugin - 
> sync_update_persist_betxn_pre_op - DB retried operation targets 
> "changenumber=4253,cn=changelog" (op=0x7f31a94cde00 idx_pl=1) => op not 
> changed in PL
> [03/Mar/2022:16:47:47.542306051 +0000] - INFO - NSMMReplicationPlugin - 
> bind_and_check_pwp - agmt="cn=caTons3.dom0.io" (ns3:389): Replication bind 
> with GSSAPI auth resumed
> [03/Mar/2022:16:47:57.596028220 +0000] - WARN - NSMMReplicationPlugin - 
> acquire_replica - agmt="cn=caTons3.dom0.io" (ns3:389): Unable to receive the 
> response for a startReplication extended operation to consumer (Can't contact 
> LDAP server). Will retry later.
> [03/Mar/2022:16:48:06.682863336 +0000] - INFO - NSMMReplicationPlugin - 
> bind_and_check_pwp - agmt="cn=caTons3.dom0.io" (ns3:389): Replication bind 
> with GSSAPI auth resumed
> 
> Couldn't find any entries related to "fallback" only those with dna-plugin. 
> The IdM master only has 3 lines with this timestamp:
> [03/Mar/2022:16:47:37.714182360 +0000] - WARN - content-sync-plugin - 
> sync_update_persist_betxn_pre_op - DB retried operation targets 
> "changenumber=3560,cn=changelog" (op=0x7f3254f19400 idx_pl=1) => op not 
> changed in PL
> [03/Mar/2022:16:47:37.759767983 +0000] - WARN - content-sync-plugin - 
> sync_update_persist_betxn_pre_op - DB retried operation targets 
> "changenumber=3562,cn=changelog" (op=0x7f3254f1da00 idx_pl=1) => op not 
> changed in PL
> [03/Mar/2022:16:47:37.885157628 +0000] - WARN - content-sync-plugin - 
> sync_update_persist_betxn_pre_op - DB retried operation targets 
> "changenumber=3566,cn=changelog" (op=0x7f32589b1800 idx_pl=1) => op not 
> changed in PL
> 
> I find quite awkward the entries saying Incompatible IPA versions, as they 
> literally have the same version, not only IPA but also distro and updates. 
> Thank you.

It logs that because the remove version was not obtained because no LDAP
connection was made. It's a preventative measure in case we make a
non-backwards-compatible change to the IPA schema.

I don't know if these connection problems are related. Are you using
--skip-conncheck with ipa-replica-install?

rob
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