Clarification on Solr Stability Wiki: Collections and Shards

2017-10-10 Thread Jon Drews
In the Solr Wiki, Shawn Heisey writes the following: "Regardless of the number of nodes or available resources, SolrCloud begins to have stability problems when the number of collections reaches the low hundreds. With thousands of collections, any little problem or change to the cluster can cause

Re: ClusterState says we are the leader, but locally we don't think so

2017-10-10 Thread Jon Drews
Following up on this thread. It was finally determined that Solr was being hard killed. The Windows service was not giving Solr enough time to shut down and was hard killing it. We fixed this and have not had the issue since. On Tue, May 31, 2016 at 1:51 PM, Jon Drews wrote: > I forgot to

Re: ClusterState says we are the leader, but locally we don't think so

2016-05-31 Thread Jon Drews
I forgot to add that this is Apache Solr 5.3.1. There are three collections, two of which have one shard and and the other has 3-5 shards. Approximately 200,000 documents across all collections. Jon Drews jondrews.com On Tue, May 31, 2016 at 12:15 PM, Jon Drews wrote: > We have seen

ClusterState says we are the leader, but locally we don't think so

2016-05-31 Thread Jon Drews
We have seen the following error on four separate instances of Solr. The result is that all or most shards go into "Down" state and do not recover on restart of Solr. I'm hoping one of you has some insight into what might be causing it as we haven't been able to track down the issue or reproduce i

Re: Commit (hard) at shutdown?

2016-05-20 Thread Jon Drews
understanding-solr-soft Jon Drews jondrews.com On Wed, May 18, 2016 at 3:55 AM, Per Steffensen wrote: > Hi > > Solr 5.1. > Someone in production in my organization claims that even though Solrs are > shut down gracefully, there can be huge tlogs to replay when starting Solrs > ag

Grafana Solr Support

2016-03-20 Thread Jon Drews
It would be really neat if Grafana supported Solr. They recently added Elasticsearch support and I'd hope some of that code could be reused for Solr support. If anyone else is interested in this, please voice your support on the Feature Request here: https://github.com/grafana/grafana/issues/4422