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From Martin Koch <...@issuu.com>
Subject Re: Zookeeper: Could not get shard_id for core
Date Fri, 01 Mar 2013 14:34:51 GMT
Most of the time things run just fine; however, we see this error every so
often, and fix it as described.

How do I run solr in non cloud mode? Could you point me to a description?

Thanks,
/Martin


On Fri, Mar 1, 2013 at 3:30 PM, Mark Miller <markrmiller@gmail.com> wrote:

> It sounds like you have some sort of configuration issue perhaps. When
> things are setup right, you should not be seeing anything like this.
>
> Whether or not you can do without ZooKeeper depends on what your
> requirements are and what you want to support. You can use SolrCloud mode
> and non SolrCloud mode - there are advantages and disadvantages to each.
>
> - Mark
>
> On Mar 1, 2013, at 9:03 AM, Martin Koch <mak@issuu.com> wrote:
>
> > On a host that is running two separate solr (jetty) processes and a
> single
> > zookeeper process, we're often seeing solr complain that it can't find a
> > particular core. If we restart the solr process, when it comes back up,
> it
> > has lost all information about its cores
> >
> > Feb 28, 2013 10:26:47 PM org.apache.solr.core.SolrCore registerSearcher
> > INFO: [core0] Registered new searcher
> > Searcher@14df33aemain{StandardDirectoryReader(segments_aat:181977
> > _16pu(4.0.0.2):C263610
> > /78380 _vwv(4.0.0.2):C285538/130332 ... [snip]
> > Feb 28, 2013 10:26:47 PM org.apache.solr.common.cloud.ZkStateReader$2
> > process
> > INFO: A cluster state change has occurred - updating...
> > Feb 28, 2013 10:27:47 PM org.apache.solr.common.SolrException log
> > *SEVERE: null:org.apache.solr.common.SolrException: Could not get
> shard_id
> > for core: core0*
> >        at
> >
> org.apache.solr.cloud.ZkController.doGetShardIdProcess(ZkController.java:995)
> >        at
> > org.apache.solr.cloud.ZkController.preRegister(ZkController.java:1053)
> >        at
> > org.apache.solr.core.CoreContainer.register(CoreContainer.java:662)
> >        [snip]
> >
> > SEVERE: null:org.apache.solr.common.SolrException: Could not get shard_id
> > for core: core1
> >
> > etc for all the cores.
> >
> > The solution has been so far to shut down solr and zookeeper, delete the
> > zookeeper configuration from disk, and then bring everything back up
> again.
> >
> > Has anyone else seen this problem? I'd love to be able to do with the
> > hassle of having to run zookeeper, and the problems that are associated
> > with it. Is this possible?
> >
> > Thanks,
> > /Martin Koch - Senior Systems Architect - Issuu.com
>
>

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