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From Schaum Mallik <schaum.mal...@gmail.com>
Subject Re: SolrCoreInitializationException after restart of one solr node
Date Thu, 20 Sep 2018 14:44:05 GMT
Thank you for your detailed responses. I am still kind of confused though.
Just to give you some more insight. When I first created the cloud I
created to collections and the ā€˜-dā€™ option pointed to the directory where
the config for the collection was stored which was in
/opt/solr/server/solr/configsets/articles/conf

so as you are saying if I move the replica data to another location and
restart the node and most probably solr might complain then what happens
next. This solr node was working fine a week back and the indexes were
upgraded when they were moved from solr 6 to solr 7

Let me know your thoughts

Thank you

On Thursday, September 20, 2018, Shawn Heisey <apache@elyograg.org> wrote:

> On 9/20/2018 8:22 AM, Schaum Mallik wrote:
>
>> Thanks for the response Shawn.
>>
>> My follow up question is how would the zookeeper ensemble know that the
>> location of the indexes has changed? Also do I need to apply the same
>> changes to the other 2 solr nodes which are working fine?
>>
>
> This move is not to change the location, it's to stop Solr from trying to
> load the indexes completely.  Solr will no longer try to load them.  I
> think these are invalid indexes from when the Solr instance was NOT running
> in cloud mode, and have nothing at all to do with your working
> collections.  But just in case I'm wrong, I'm having you move them instead
> of delete them, so they can be put back if it turns out they actually were
> needed.
>
> ZooKeeper doesn't know anything at all about Solr and the data it puts in
> ZK.  It is just a service that stores cluster data where all nodes can read
> it and handles elections when it is asked to.
>
> Thanks,
> Shawn
>
>

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