Re: (ITS#5463) syncrepl stops or pauses

[rein@basefarm.no]

marian.eichholz@freenet.ag skrev:
> Full_Name: 
> Version: 2.4.8
> OS: Linux 2.6.23.13
> URL: ftp://ftp.openldap.org/incoming/
> Submission from: (NULL) (194.97.7.65)
> 
> The replication may suddenly stop, and we see no reason for that. Sometimes it
> recovers  by itself, sometimes it recovers only when the consumer slapd is
> stopped and restarted.
> Is there a "golden path" to debug this issue?

This sounds a lot like the problems we had, see ITS#5454.  Replication 
has been running smootly since we implemented the patch included there.

An alternative version is implemented in the CVS head release, but that 
lacks a change from trylock to real mutex lock before the race condition 
is fully closed.

We experienced a lot of replication problems after upgrading from a 
slurpd based replication in 2.3.x to syncrepl in 2.4.8.  We are 
currently using the CVS head version (as it was about a week ago), and 
most of our problems has been solved there :-)  You should consider the 
cvs version, as it has many syncrepl and syncprov fixes.

--
Rein Tollevik
Basefarm AS