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https://issues.apache.org/jira/browse/HADOOP-3245?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Amar Kamat updated HADOOP-3245:
-------------------------------
Release Note:
Adds the facility to recover running jobs upon a jobtracker restart i.e jobs
can now survive jobtracker restarts. Job's history is used to recover the
running jobs. By default the restart mode is turned off. Here are the config
parameters that control the recovery
mapred.jobtracker.restart.recover : the recovery switch
mapred.jobtracker.job.history.block.size : block size for the job history file.
mapred.jobtracker.job.history.buffer.size : buffer size for the job history file
was:
Adds the facility to recover running jobs upon a jobtracker restart i.e jobs
can now survive jobtracker restarts. Job's history is used to recover the
running jobs. By default the restart mode is turned off. Here are the config
parameters that control the recovery
{{mapred.jobtracker.restart.recover}} : the recovery switch
{{mapred.jobtracker.job.history.block.size}} : block size for the job history
file.
{{mapred.jobtracker.job.history.buffer.size}} : buffer size for the job history
file
Hadoop Flags: [Incompatible change, Reviewed] (was: [Reviewed,
Incompatible change])
> Provide ability to persist running jobs (extend HADOOP-1876)
> ------------------------------------------------------------
>
> Key: HADOOP-3245
> URL: https://issues.apache.org/jira/browse/HADOOP-3245
> Project: Hadoop Core
> Issue Type: New Feature
> Components: mapred
> Reporter: Devaraj Das
> Assignee: Amar Kamat
> Fix For: 0.19.0
>
> Attachments: HADOOP-3245-v2.5.patch, HADOOP-3245-v2.6.5.patch,
> HADOOP-3245-v2.6.9.patch, HADOOP-3245-v4.1.patch, HADOOP-3245-v5.13.patch,
> HADOOP-3245-v5.14.patch, HADOOP-3245-v5.26.patch,
> HADOOP-3245-v5.30-nolog.patch, HADOOP-3245-v5.31.3-nolog.patch,
> HADOOP-3245-v5.33.1.patch, HADOOP-3245-v5.35.3-no-log.patch,
> HADOOP-3245-v5.36-no-log.patch, HADOOP-3245-v5.36.1-no-log.patch,
> HADOOP-3245-v5.36.2-no-log.patch, HADOOP-3245-v5.36.3-no-log.patch,
> HADOOP-3245-v5.36.3-no-log.patch
>
>
> This could probably extend the work done in HADOOP-1876. This feature can be
> applied for things like jobs being able to survive jobtracker restarts.
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