Erick,

Apologies I should have been more specific. "Failed solr node" mean's:

1. SolrCloud instance has crashed
2. SolrCloud Instance is up but not responding
3. SolrCloud Cluster is not responding

I'm trying to determine if there is any health check available to determine the 
above and then if the issue happens then an automated mechanism in SolrCloud to 
restart the instance. Or is this something we have to code ourselves?

Thanks

Mike

-----Original Message-----
From: Erick Erickson <erickerick...@gmail.com>
Sent: 25 September 2018 18:25
To: solr-user <solr-user@lucene.apache.org>
Subject: Re: Auto recovery of a failed Solr Cloud Node?

What does "Failed solr node" mean? How do you mean if fails? There's lots of 
recovery built in for a replica that gets out-of-sync somehow (is shut down 
while indexing is going on etc). All that relies on having more than one 
replica per shard of course.

If the node completely dies due to hardware for instance, then yes the best 
solution now is to spin up another Solr node. I'm not sure what REPLACENODE 
does in this scenario.

If you're using HDFS there's an option to do this since the index is replicated 
by HDFS.

Best,
Erick
On Tue, Sep 25, 2018 at 8:48 AM Kimber, Mike <mike.kim...@verint.com> wrote:
>
> Hi,
>
> Is there a recommend design pattern or best practice for auto recovery of a 
> failed Solr Node?
>
> I'm I correct to assume there is nothing out of the box for this and we have 
> to code our own solution?
>
> Thanks
>
> Michael Kimber
>
>
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