Noble Paul created SOLR-5476:
--------------------------------

             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



--
This message was sent by Atlassian JIRA
(v6.1#6144)

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

Reply via email to