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From "Aravindan Vijayan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AMBARI-15872) Provide ability to tune WAL file writes for AMS HBase tables
Date Thu, 26 May 2016 21:33:13 GMT

     [ https://issues.apache.org/jira/browse/AMBARI-15872?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Aravindan Vijayan updated AMBARI-15872:
---------------------------------------
    Component/s: ambari-metrics

> Provide ability to tune WAL file writes for AMS HBase tables 
> -------------------------------------------------------------
>
>                 Key: AMBARI-15872
>                 URL: https://issues.apache.org/jira/browse/AMBARI-15872
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-metrics
>            Reporter: Aravindan Vijayan
>            Assignee: Aravindan Vijayan
>            Priority: Blocker
>         Attachments: AMBARI-15872.patch
>
>
> This is a tuning parameter that can be used in HBase to improve performance as a trade-off
to data loss. For large clusters, this is a very useful optimization that can be employed.

> FIX
> Added an optional config (Not available through default from the stack)
> ams-site : timeline.metrics.tables.durability
> Valid values it can take : SKIP_WAL / SYNC_WAL / ASYNC_WAL / FSYNC_WAL



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