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(ITS#7498) Openldap syncrepl issue
Full_Name: Arunkumar shanmugam
Submission from: (NULL) (188.8.131.52)
I've been having issues with syncrepl in openldap. This is plain
syncrepl. I'm not using delta-syncrepl as I run with mirror mode on.
I've noticed that when there are a large number of writes on the
writemaster (Typically around 10 per second) the data on the readslave
goes out of sync with the master, typically having entries which have
been deleted on the master. The contextCSNs on both the readslaves and
writemaster match eventually, but the data doesn't. I'm running the
readslave in refreshOnly mode with an interval of 1 minute. I'm using a
reasonably large DB of size ~ 2 GB. I turned on the sync logs and found
lots of entries with "nonpresent_callback" and "syncrepl_del_nonpresent".
Tested this and found it occurring in both 2.4.29 and 2.4.33 (Latest as
of this time), and with BDB 4.2.36 as the backend.
I was wondering if anyone has faced similar issues before, and if there
exists a solution to this problem. I will send any relevant
configuration and log snippets as needed.