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From Shawn Heisey <apa...@elyograg.org>
Subject Re: slave is getting full synced every polling
Date Fri, 12 Feb 2016 21:06:23 GMT
On 2/12/2016 11:47 AM, Novin Novin wrote:
> I think I didn't explain it quit properly. So I have situation in which
> data is getting index every 20 seconds or less and I can't loose data while
> indexing. I use searching a lot in website, if I have to restart my solr
> machine because of kernel update or some network problem or some another
> reason (not really in top of my head). It takes a while to restart, while
> it is restarting some body is using website feature which require data to
> be indexed and display results after request completed. In this situation,
> if I loose the data I have to do full index (because I am using solrj it
> takes 3 to 4 hours, so this not ideal). That's why I am doing switching between
> master and slave.

If you switched to SolrCloud, you wouldn't have to worry about switching
masters -- there *are* no masters or slaves.  With a proper replicated
setup, any single machine in the cloud can go down, or have maintenance
performed, with no visible impact on SolrJ clients using
CloudSolrClient.  When the Solr instance comes back up, it will
automatically resync from the cloud.

If you're using non-SolrJ clients, you'd just need to put a load
balancer in front of your SolrCloud cluster and there would be no
downtime for failures or maintenance.

SolrCloud is a little bit more difficult to set up initially, and
requires at least three physical servers, but once it's running, it is
typically *easier* to manage than master/slave.

Thanks,
Shawn


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