lucene-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Mark Miller (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-6027) Replica assignments should try to take the host name into account so all replicas don't end up on the same host
Date Mon, 28 Apr 2014 17:18:18 GMT

    [ https://issues.apache.org/jira/browse/SOLR-6027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13983230#comment-13983230
] 

Mark Miller commented on SOLR-6027:
-----------------------------------

bq. it could be argued that I shouldn't be running that many Solr nodes per instance

I think we want to make things as smart as we can! Everything is very basic right now and
the intention has always been to make it much better - we want at least the option to take
into account as much info as we can when choosing hosts (eventually, even hardware, avg load,
whatever!).

> Replica assignments should try to take the host name into account so all replicas don't
end up on the same host
> ---------------------------------------------------------------------------------------------------------------
>
>                 Key: SOLR-6027
>                 URL: https://issues.apache.org/jira/browse/SOLR-6027
>             Project: Solr
>          Issue Type: Improvement
>          Components: SolrCloud
>            Reporter: Timothy Potter
>            Priority: Minor
>
> I have 18 SolrCloud nodes distributed across 3 Ec2 instances, so 6 per instance. One
of my collections was created with all replicas landing on different SolrCloud nodes on the
same instance. Ideally, SolrCloud would be a little smarter and ensure that at least one of
the replicas was on one of the other hosts.
> shard4: {
> 	http://ec2-??-??-??-239.compute-1.amazonaws.com:8988/solr/med_collection_shard4_replica1/
LEADER
> 	http://ec2-??-??-??-239.compute-1.amazonaws.com:8984/solr/med_collection_shard4_replica3/

> 	http://ec2-??-??-??-239.compute-1.amazonaws.com:8985/solr/med_collection_shard4_replica2/

> }
> I marked this as minor for now as it could be argued that I shouldn't be running that
many Solr nodes per instance, but I'm seeing plenty of installs that are using higher-end
instance types / server hardware and then running multiple Solr nodes per host.



--
This message was sent by Atlassian JIRA
(v6.2#6252)

---------------------------------------------------------------------
To unsubscribe, e-mail: dev-unsubscribe@lucene.apache.org
For additional commands, e-mail: dev-help@lucene.apache.org


Mime
View raw message