[jira] [Created] (SOLR-5476) Roles per node

["Noble Paul (JIRA)" <ji...@apache.org>]

Noble Paul created SOLR-5476:
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             Summary: Roles per node
                 Key: SOLR-5476
                 URL: https://issues.apache.org/jira/browse/SOLR-5476
             Project: Solr
          Issue Type: Sub-task
            Reporter: Noble Paul


In a very large cluster the OverSeer is likely to be overloaded.If the same node is a serving a few other shards it can lead to OverSeer getting slowed down due to GC pauses , or simply too much of work  . If the cluster is really large , it is possible to dedicate high end h/w for OverSeers

It works as a new collection admin command

command=assignRole&whitelist=overseer&blacklist=leader&blacklist=replica&node=node_name

If a node is whitelisted for overseer it gets preference over others when overseer election takes place. If no whitelisted servers are available another random node will be picked up

if the node is blacklisted for leade/replica , it won't be assigned any new shards



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Re: (SOLR-5476) Overseer Role for nodes

[Michael McCandless <lu...@mikemccandless.com>]

On Fri, Jan 17, 2014 at 3:09 AM, ASF subversion and git services
(JIRA) <ji...@apache.org> wrote:

> PLEASE RUN "ant precommit" (root) or alternatively the faster "ant check-forbidden-apis" (in your module folder) before committing!

And also try to watch out for build failures for a few hours after you
commit ...

Mike McCandless

http://blog.mikemccandless.com

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