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https://issues.apache.org/jira/browse/TRAFODION-2146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15412527#comment-15412527
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ASF GitHub Bot commented on TRAFODION-2146:
-------------------------------------------
GitHub user sandhyasun opened a pull request:
https://github.com/apache/incubator-trafodion/pull/647
[TRAFODION-2146] Use of CQD to set scratch directory locations
Scratchfile creation cleanup and new code to use CQD SCRATCH_DISKS to
specify scratch disk locations for overflow. Removed references to NSK volume
patterns and validation routines that expected volume/subvolume format. Added
new validation code for linux path names.
Cleaned up and removed STFS_LOCATION envvar usage from ms.env and STFS
layer.
Added a new method that can be called to tell STFS to honor the CQD
specification over the envvar specification.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/sandhyasun/incubator-trafodion sort_scratch
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-trafodion/pull/647.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #647
----
commit 8fa07cdcbc4318706cc812ae891729ee1e52f911
Author: Sandhya Sundaresan <[email protected]>
Date: 2016-08-08T21:31:40Z
Scratchfile creation cleanup and new code to use CQD SCRATCH_DISKS to
specify scratch disk locations for overflow. Removed references to NSK volume
patterns and validation routines that expected volume/subvolume format. Added
new validation code for linux path names.
Cleaned up and removed STFS_LOCATION envvar usage from ms.env and STFS
layer.
Added a new method that can be called to tell STFS to honor the CQD
specification over the envvar specification.
----
> Use of CQD to set scratch directory locations
> ---------------------------------------------
>
> Key: TRAFODION-2146
> URL: https://issues.apache.org/jira/browse/TRAFODION-2146
> Project: Apache Trafodion
> Issue Type: Improvement
> Components: foundation, sql-exe
> Reporter: Sandhya Sundaresan
> Assignee: Sandhya Sundaresan
>
> Allow a CQD specification to override the env settings for STFS locations.
> Currently the scratch directory locations and set at installtion time . The
> STFS layer that manages the scratch file creation reads the envvar in ms.env
> to determine where to create the scratch files.
> Now we allow a CQD to be specified that will override the envvar setting. If
> the CQD is not set (empty) , the envvar setting will work. This will give the
> user some flexibility to change scratch directory locations. The requirement
> is that the directoryies MUST exists on every node and that Trafodion user
> will need permissions to write to those directories. If not an error will be
> returned when a query invliving sort/hash overflow is executed. .
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