Hi - if there is a very large discrepancy, you could consider to purge the 
smallest replica, it will then resync from the leader.
 
 
-----Original message-----
> From:S.L <simpleliving...@gmail.com>
> Sent: Monday 27th October 2014 16:41
> To: solr-user@lucene.apache.org
> Subject: Re: Heavy Multi-threaded indexing and SolrCloud 4.10.1 replicas out 
> of synch.
> 
> Markus,
> 
> I would like to ignore it too, but whats happening is that the there is a
> lot of discrepancy between the replicas , queries like
> q=*:*&fq=(id:220a8dce-3b31-4d46-8386-da8405595c47) fail depending on which
> replica the request goes to, because of huge amount of discrepancy between
> the replicas.
> 
> Thank you for confirming that it is a know issue , I was thinking I was the
> only one facing this due to my set up.
> 
> On Mon, Oct 27, 2014 at 11:31 AM, Markus Jelsma <markus.jel...@openindex.io>
> wrote:
> 
> > It is an ancient issue. One of the major contributors to the issue was
> > resolved some versions ago but we are still seeing it sometimes too, there
> > is nothing to see in the logs. We ignore it and just reindex.
> >
> > -----Original message-----
> > > From:S.L <simpleliving...@gmail.com>
> > > Sent: Monday 27th October 2014 16:25
> > > To: solr-user@lucene.apache.org
> > > Subject: Re: Heavy Multi-threaded indexing and SolrCloud 4.10.1 replicas
> > out of synch.
> > >
> > > Thank Otis,
> > >
> > > I have checked the logs , in my case the default catalina.out and I dont
> > > see any OOMs or , any other exceptions.
> > >
> > > What others metrics do you suggest ?
> > >
> > > On Mon, Oct 27, 2014 at 9:26 AM, Otis Gospodnetic <
> > > otis.gospodne...@gmail.com> wrote:
> > >
> > > > Hi,
> > > >
> > > > You may simply be overwhelming your cluster-nodes. Have you checked
> > > > various metrics to see if that is the case?
> > > >
> > > > Otis
> > > > --
> > > > Monitoring * Alerting * Anomaly Detection * Centralized Log Management
> > > > Solr & Elasticsearch Support * http://sematext.com/
> > > >
> > > >
> > > >
> > > > > On Oct 26, 2014, at 9:59 PM, S.L <simpleliving...@gmail.com> wrote:
> > > > >
> > > > > Folks,
> > > > >
> > > > > I have posted previously about this , I am using SolrCloud 4.10.1 and
> > > > have
> > > > > a sharded collection with  6 nodes , 3 shards and a replication
> > factor
> > > > of 2.
> > > > >
> > > > > I am indexing Solr using a Hadoop job , I have 15 Map fetch tasks ,
> > that
> > > > > can each have upto 5 threds each , so the load on the indexing side
> > can
> > > > get
> > > > > to as high as 75 concurrent threads.
> > > > >
> > > > > I am facing an issue where the replicas of a particular shard(s) are
> > > > > consistently getting out of synch , initially I thought this was
> > > > beccause I
> > > > > was using a custom component , but I did a fresh install and removed
> > the
> > > > > custom component and reindexed using the Hadoop job , I still see the
> > > > same
> > > > > behavior.
> > > > >
> > > > > I do not see any exceptions in my catalina.out , like OOM , or any
> > other
> > > > > excepitions, I suspecting thi scould be because of the multi-threaded
> > > > > indexing nature of the Hadoop job . I use CloudSolrServer from my
> > java
> > > > code
> > > > > to index and initialize the CloudSolrServer using a 3 node ZK
> > ensemble.
> > > > >
> > > > > Does any one know of any known issues with a highly multi-threaded
> > > > indexing
> > > > > and SolrCloud ?
> > > > >
> > > > > Can someone help ? This issue has been slowing things down on my end
> > for
> > > > a
> > > > > while now.
> > > > >
> > > > > Thanks and much appreciated!
> > > >
> > >
> >

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