Re: [389-users] repl5_inc_waitfor_async_results

[Rich Megginson]

On 01/08/2015 10:21 AM, shardulsk wrote:
>  Hi,
>
>  Running 389-ds 1.1.2 on Centos 5. 
rpm -q 389-ds-base

>  We have suddenly seen repl5_inc_waitfor_async_results  errors crop up 
>  in our error log during peak traffic hours.
>
>  The Master loses sight of Hubs and replication stalls. Most of the 
>  times it comes right back up after a couple of mins. However we have 
>  been restarting Hubs to make the process quicker.
>
>  tail -f errors
>  [08/Jan/2015:02:42:08 -0800] NSMMReplicationPlugin - agmt="cn=add -> 
>  hub1" (hub1:2390): Simple bind resumed
>  [08/Jan/2015:09:04:38 -0800] - repl5_inc_waitfor_async_results timed 
>  out waiting for responses: 0 34222
>  [08/Jan/2015:09:05:18 -0800] - repl5_inc_waitfor_async_results timed 
>  out waiting for responses: 0 33499
>  [08/Jan/2015:09:05:37 -0800] NSMMReplicationPlugin - agmt="cn=add -> 
>  hub2" (hub1:2390): Warning: unable to receive endReplication extended 
>  operation response (Can't contact LDAP server)
>  [08/Jan/2015:09:05:37 -0800] NSMMReplicationPlugin - agmt="cn=add -> 
>  hub2" (hub1:2390): Simple bind failed, LDAP sdk error 91 (Can't 
>  connect to the LDAP server), Netscape Portable Runtime error -5961 
>  (TCP connection reset by peer.) 
What is happening on the consumer (hub2?) at this time?  That is, take a 
look at the access and errors logs from around this time on hub2.

>  [08/Jan/2015:09:05:59 -0800] NSMMReplicationPlugin -
> agmt="cn=add -> 
>  hub2" (hub1:2390): Simple bind resumed
>  [08/Jan/2015:09:07:43 -0800] NSMMReplicationPlugin - agmt="cn=add -> 
>  hub1" (hub1:2390): Warning: unable to receive endReplication extended 
>  operation response (Can't contact LDAP server)
>  [08/Jan/2015:09:07:43 -0800] NSMMReplicationPlugin - agmt="cn=add -> 
>  hub1" (hub1:2390): Simple bind failed, LDAP sdk error 91 (Can't 
>  connect to the LDAP server), Netscape Portable Runtime error -5961 
>  (TCP connection reset by peer.)
>  [08/Jan/2015:09:08:05 -0800] NSMMReplicationPlugin - agmt="cn=add -> 
>  hub1" (hub1:2390): Simple bind resumed
>
>
>  Any idea what is causing this? I checked ADD/DEL operations during the 
>  outage and none of them stand out. No MOD errors and all MODs 
>  completed within a second.
>
>
>  ~Shardul
>
>
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