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Jul 20, 2012, 2:07 AM
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[jira] [Commented] (SOLR-3167) Allow running embedded zookeeper 1 for 1 dynamically with solr nodes
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[ https://issues.apache.org/jira/browse/SOLR-3167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13419015#comment-13419015 ]
Jan Høydahl commented on SOLR-3167:
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I was thinking "auto-everything" by default :) like ElasticSearch
# Start Solr on a node without any options other than telling it to start in cloud mode
## If -DzkHost is not specified it will try autoDiscover (through some 0-conf protocol) and join existing ZK
## If no existing ZK found, spin up a local one
# Start Solr on another node, it will discover the existing one(s) without any host:port at startup
## If "too few" ZK servers, will start another one and refresh the ZK list on all other nodes
## If "enough" ZK servers already, will simply join. Should also be possible to auto-start ZK on another node if one master has failed.
> Allow running embedded zookeeper 1 for 1 dynamically with solr nodes
> --------------------------------------------------------------------
>
> Key: SOLR-3167
> URL: https://issues.apache.org/jira/browse/SOLR-3167
> Project: Solr
> Issue Type: Improvement
> Reporter: Mark Miller
> Assignee: Mark Miller
>
> Right now you have to decide which nodes run zookeeper up front - each node must know the list of all the servers in the ensemble. Growing or shrinking the list of nodes requires a rolling restart. https://issues.apache.org/jira/browse/ZOOKEEPER-1355 (Add zk.updateServerList(newServerList) might be able to help us here. Perhaps the over seer could make a call to each replica when the list changes and use the update server list call.
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