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https://issues.apache.org/jira/browse/AMBARI-16056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sumit Mohanty updated AMBARI-16056:
-----------------------------------
Attachment: AMBARI-16056.patch
> Ambari support for bucket caching parameter - hbase.bucketcache.ioengine
> ------------------------------------------------------------------------
>
> Key: AMBARI-16056
> URL: https://issues.apache.org/jira/browse/AMBARI-16056
> Project: Ambari
> Issue Type: Bug
> Components: stacks
> Reporter: Nitin Verma
> Assignee: Nitin Verma
> Labels: newbie, patch
> Fix For: 2.2-next
>
> Attachments: AMBARI-16056.patch, ambari_bucket_cache (1).diff
>
>
> In order to utilize SSD as a L2 (bucket) cache, we specify a file location to
> hbase.bucketcache.ioengine parameter.
> hbase.bucketcache.ioengine=file:<filepath>
> The directory location specified to the above parameter could be non-existent
> or non-accessible.
> Since ambari-agent runs with root permissions, the proposed change here is to
> read the 'hbase.bucketcache.ioengine' parameter from hbase configuration and
> see if it points to a file location (by looking at file: prefix).
> In case ioengine points to a file, ambari-agent should create the underlying
> directory and assign appropriate permissions to hbase:hadoop user.
> Activity
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