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https://issues.apache.org/jira/browse/YARN-3841?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16328403#comment-16328403
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genericqa commented on YARN-3841:
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| {color:red}-1{color} | {color:red} docker {color} | {color:red} 2m
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|| Subsystem || Report/Notes ||
| JIRA Issue | YARN-3841 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12906356/YARN-3841-YARN-7055.002.patch
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| Console output |
https://builds.apache.org/job/PreCommit-YARN-Build/19279/console |
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This message was automatically generated.
> [Storage implementation] Adding retry semantics to HDFS backing storage
> -----------------------------------------------------------------------
>
> Key: YARN-3841
> URL: https://issues.apache.org/jira/browse/YARN-3841
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Reporter: Tsuyoshi Ozawa
> Assignee: Tsuyoshi Ozawa
> Priority: Major
> Labels: YARN-5355
> Attachments: YARN-3841-YARN-7055.002.patch,
> YARN-3841-YARN-7055.002.patch, YARN-3841.001.patch
>
>
> HDFS backing storage is useful for following scenarios.
> 1. For Hadoop clusters which don't run HBase.
> 2. For fallback from HBase when HBase cluster is temporary unavailable.
> Quoting ATS design document of YARN-2928:
> {quote}
> In the case the HBase
> storage is not available, the plugin should buffer the writes temporarily
> (e.g. HDFS), and flush
> them once the storage comes back online. Reading and writing to hdfs as the
> the backup storage
> could potentially use the HDFS writer plugin unless the complexity of
> generalizing the HDFS
> writer plugin for this purpose exceeds the benefits of reusing it here.
> {quote}
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