On Sun, Dec 29, 2024 at 01:28:42PM -0500, Suresh Veliveli wrote:
> Another instance where replication is stuck and not recovering.
> 
> # requesting: contextCSN
> contextCSN: *20241229135907.725117Z#000000#000#000000*
> aaa-prod-aws-10:2636
> # requesting: contextCSN
> contextCSN:* 20241228185913.665451Z#000000#000#000000*
> 
> *Log info:*
> Dec 28 13:59:21 aaa-prod-aws-10 slapd[1161864]: do_syncrep2: rid=650
> cookie=rid=650,csn=20241228185913.665451Z#000000#000#000000
> Dec 28 13:59:21 aaa-prod-aws-10 slapd[1161864]: syncrepl_entry: rid=650
> LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_MODIFY)
> csn=20241228185913.665451Z#000000#000#000000 tid 0x7f26ee5fd640
> Dec 28 13:59:21 aaa-prod-aws-10 slapd[1161864]: slap_queue_csn: queueing
> 0x7f26e0dcee50 20241228185913.665451Z#000000#000#000000
> Dec 28 13:59:21 aaa-prod-aws-10 slapd[1161864]: slap_graduate_commit_csn:
> removing 0x7f26e0dcee50 20241228185913.665451Z#000000#000#000000
> Dec 28 13:59:21 aaa-prod-aws-10 slapd[1161864]: slap_queue_csn: queueing
> 0x7f26e0f34360 20241228185913.665451Z#000000#000#000000
> Dec 28 13:59:21 aaa-prod-aws-10 slapd[1161864]: slap_graduate_commit_csn:
> removing 0x7f26e0f34360 20241228185913.665451Z#000000#000#000000
> 
> Nothing gets logged about replication after the above.
> 
> Am I missing something?

Hi Suresh,
anything in the provider logs around that time? All consumers messages
will be tagged with a specific "conn=xxx op=yyy" which you can discover
e.g. by looking for the cookie it sends at the beginning of the session.

Couple of other questions:
- is the TCP connection alive as far as the OS is concerned (I see in
  the thread you've confirmed TCP keepalive is enabled, correct?)
- could you post the cn=monitor info for the consumer? The objectclass
  to look for is olmSyncReplInstance

Thanks,

-- 
Ondřej Kuzník
Senior Software Engineer
Symas Corporation                       http://www.symas.com
Packaged, certified, and supported LDAP solutions powered by OpenLDAP

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