Replication lag due to high-frequency attribute changes

High-frequency attribute changes can slow replication. Volatile attribute replication separates these changes from critical updates to improve performance.

Replication lag can occur when certain attributes change very frequently, such as last login timestamps. These frequent updates can fill the replication queue and delay critical changes like passwords, even when replication is active and the consumer server is available.

ldapsearch -h hostname -p port -D "cn=admin" -w -s sub -b "o=sample" \
'objectclass=ibm-replicationagreement' ++ibmrepl

If ibm-replicationPendingChangeCount is consistently high, such as thousands of entries, the queue may be congested. Review pending changes with ibm-replicationPendingChanges and look for patterns of frequent modifications on the same attributes. Identify attributes that change often.

To resolve this issue, use the volatile attribute replication feature. This separates high-frequency attribute changes from critical changes, allowing important attributes to replicate promptly without being delayed.

For detailed configuration and implementation steps, see Optimizing replication performance with volatile attributes