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https://issues.apache.org/jira/browse/SOLR-5364?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13801622#comment-13801622
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Chris commented on SOLR-5364:
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I can confirm the same as "Prasi S" on the solr-user mailing list with regard
to hitting the admin url and indexing continues. After hanging for around 40
minutes, I went to the admin UI (which is totally responsive) and then indexing
started again - and my client continues to report posting up to the cloud.
After an even shorter period of time indexing stops again, and hitting the
admin UI wont start indexing again, until a few hours later.
Neither Solr, or my indexing client are reporting errors. The client appears to
be hanging, but it looks like it's CloudSolrServer not returning a response and
sitting in the .add(docs) method.
> SolrCloud stops accepting updates
> ---------------------------------
>
> Key: SOLR-5364
> URL: https://issues.apache.org/jira/browse/SOLR-5364
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Affects Versions: 4.4, 4.5, 4.6
> Reporter: Chris
> Priority: Blocker
>
> I'm attempting to import data into a SolrCloud cluster. After a certain
> amount of time, the cluster stops accepting updates.
> I have tried numerous suggestions in IRC from Elyorag and others without
> resolve.
> I have had this issue with 4.4, and understood there was a deadlock issue
> fixed in 4.5, which hasn't resolved the issue, neither have the 4.6 snapshots.
> I've tried with Tomcat, various tomcat configuration changes to threading,
> and with Jetty. Tried with various index merging configurations as I
> initially thought there was a deadlock with concurrent merg scheduler,
> however same issue with SerialMergeScheduler.
> The cluster stops accepting updates after some amount of time, this seems to
> vary and is inconsistent. Sometimes I manage to index 400k docs, other times
> ~1million . Querying the cluster continues to work. I can reproduce the
> issue consistently, and is currently blocking our transition to Solr.
> I can provide stack traces, thread dumps, jstack dumps as required.
> Here are two jstacks thus far:
> http://pastebin.com/1ktjBYbf
> http://pastebin.com/8JiQc3rb
> I have got these jstacks from the latest 4.6 snapshot, also running solrj
> snapshot. The issue is also consistently reproducable with BinaryRequest
> writer.
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