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https://issues.apache.org/jira/browse/SOLR-1724?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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David Smiley updated SOLR-1724:
-------------------------------
Fix Version/s: (was: 4.7)
4.8
> Real Basic Core Management with Zookeeper
> -----------------------------------------
>
> Key: SOLR-1724
> URL: https://issues.apache.org/jira/browse/SOLR-1724
> Project: Solr
> Issue Type: New Feature
> Components: multicore
> Affects Versions: 1.4
> Reporter: Jason Rutherglen
> Fix For: 4.8
>
> Attachments: SOLR-1724.patch, SOLR-1724.patch, SOLR-1724.patch,
> SOLR-1724.patch, SOLR-1724.patch, SOLR-1724.patch, SOLR-1724.patch,
> SOLR-1724.patch, SOLR-1724.patch, SOLR-1724.patch, SOLR-1724.patch,
> commons-lang-2.4.jar, gson-1.4.jar, hadoop-0.20.2-dev-core.jar,
> hadoop-0.20.2-dev-test.jar
>
>
> Though we're implementing cloud, I need something real soon I can
> play with and deploy. So this'll be a patch that only deploys
> new cores, and that's about it. The arch is real simple:
> On Zookeeper there'll be a directory that contains files that
> represent the state of the cores of a given set of servers which
> will look like the following:
> /production/cores-1.txt
> /production/cores-2.txt
> /production/core-host-1-actual.txt (ephemeral node per host)
> Where each core-N.txt file contains:
> hostname,corename,instanceDir,coredownloadpath
> coredownloadpath is a URL such as file://, http://, hftp://, hdfs://, ftp://,
> etc
> and
> core-host-actual.txt contains:
> hostname,corename,instanceDir,size
> Everytime a new core-N.txt file is added, the listening host
> finds it's entry in the list and begins the process of trying to
> match the entries. Upon completion, it updates it's
> /core-host-1-actual.txt file to it's completed state or logs an error.
> When all host actual files are written (without errors), then a
> new core-1-actual.txt file is written which can be picked up by
> another process that can create a new core proxy.
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