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From "Mark Miller (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-5656) Add SharedFS Failover option that allows surviving Solr instances to take over serving data for victim Solr instances.
Date Tue, 29 Apr 2014 18:04:17 GMT

     [ https://issues.apache.org/jira/browse/SOLR-5656?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mark Miller updated SOLR-5656:
------------------------------

    Description: 
When using HDFS, the Overseer should have the ability to reassign the cores from failed nodes
to running nodes.

Given that the index and transaction logs are in hdfs, it's simple for surviving hardware
to take over serving cores for failed hardware.

There are some tricky issues around having the Overseer handle this for you, but seems a simple
first pass is not too difficult.

This will add another alternative to replicating both with hdfs and solr.

It shouldn't be specific to hdfs, and would be an option for any shared file system Solr supports.

  was:
Given that the index and transaction logs are in hdfs, it's simple for surviving hardware
to take over serving cores for failed hardware.

There are some tricky issues around having the Overseer handle this for you, but seems a simple
first pass is not too difficult.

This will add another alternative to replicating both with hdfs and solr.

        Summary: Add SharedFS Failover option that allows surviving Solr instances to take
over serving data for victim Solr instances.  (was: When using HDFS, the Overseer should have
the ability to reassign the cores from failed nodes to running nodes.)

> Add SharedFS Failover option that allows surviving Solr instances to take over serving
data for victim Solr instances.
> ----------------------------------------------------------------------------------------------------------------------
>
>                 Key: SOLR-5656
>                 URL: https://issues.apache.org/jira/browse/SOLR-5656
>             Project: Solr
>          Issue Type: New Feature
>            Reporter: Mark Miller
>            Assignee: Mark Miller
>
> When using HDFS, the Overseer should have the ability to reassign the cores from failed
nodes to running nodes.
> Given that the index and transaction logs are in hdfs, it's simple for surviving hardware
to take over serving cores for failed hardware.
> There are some tricky issues around having the Overseer handle this for you, but seems
a simple first pass is not too difficult.
> This will add another alternative to replicating both with hdfs and solr.
> It shouldn't be specific to hdfs, and would be an option for any shared file system Solr
supports.



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