Re: delta-syncrepl stopped receiving changes

[Howard Chu <hyc@symas.com>]

David Hawes wrote:
> On 2012-07-18 18:01, Gavin Henry wrote:
>>>> Hi Dave,
>>>>
>>>> Have you been able to reproduce it since?
>>>>
>>>> Thanks.
>>>
>>> So far I've only had the one failure and I haven't been able to
>>> reproduce it since.
>>>
>>
>> That's tricky then. Did you file an ITS? Will check...
> 
> I haven't filed an ITS yet, but another consumer locked up yesterday.
> 
> This time I didn't try to modify anything when syncrepl was locked.
> 
> The backtrace is the same for the hdb_modify, but there are also threads
> that are locked on binds and searches. It turns out that these searches
> and binds are for the user that is being modified. The consumer shut
> down, came up normally, and replication continued without incident.
> 
> Here's a bind that is locked:
> 

> Clearly I need to upgrade and see if this still continues to happen.

Give back-mdb in 2.4.32 a try. It's completely deadlock free.

-- 
  -- Howard Chu
  CTO, Symas Corp.           http://www.symas.com
  Director, Highland Sun     http://highlandsun.com/hyc/
  Chief Architect, OpenLDAP  http://www.openldap.org/project/