On Fri, 2016-03-25 at 02:45 +0530, shardulsk wrote:
We recently upgraded from Centos 5.4 389-ds Version 1.1.2 to Centos 6.7 389-ds version 1.2.11
389-console-1.1.7-1.el6.noarch 389-ds-base-1.2.11.15-48.el6_6.x86_64 389-ds-console-1.2.6-1.el6.noarch 389-ds-base-libs-1.2.11.15-48.el6_6.x86_64 389-admin-console-1.1.8-1.el6.noarch 389-adminutil-1.1.19-1.el6.x86_64 389-admin-1.1.35-1.el6.x86_64
The setup has a single master, hub and 5 replicas. For some reason we are experiencing replication delays of upto 40 secs between hub and replicas. This did not occur in the old setup. At the time access logs showed an average of 1000 MOD operations per minute.
For a start, ldap is an async replication protocol, not a sync one.
With that setup, remember the hub can only provide updates to one replica at a time. So they each have to wait in turn.
You can see this by turning on the replication logging in errorlog-level to 8192.