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Posted to issues@trafodion.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2017/07/06 23:23:00 UTC
[jira] [Commented] (TRAFODION-2628) SQL engine work for Elasticity
[TRAFODION-2001]
[ https://issues.apache.org/jira/browse/TRAFODION-2628?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16077348#comment-16077348 ]
ASF GitHub Bot commented on TRAFODION-2628:
-------------------------------------------
GitHub user zellerh opened a pull request:
https://github.com/apache/incubator-trafodion/pull/1170
[TRAFODION-2628] SQL engine work for Elasticity
It turns out that the compiler already kept a list of node ids,
not assuming that node ids are consecutively numbered 0...n-1.
However, this list was contained in lots of other data structures
that are dead code, coming from the time before Trafodion was
open-sourced. The change does two things: a) getting rid of obsolete
info and b) maintining a list of node ids in the NAClusterInfo
class.
This change does not include executor modifications. The executor
might work just fine, or we may need to add a fix (or optimization)
for cases where we pick a node id for a new process at runtime.
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/zellerh/incubator-trafodion bug/elasticity
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/incubator-trafodion/pull/1170.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 #1170
----
commit 4bea445d03b5712007ab326464a8b64b8c2b3740
Author: Hans Zeller <hz...@apache.org>
Date: 2017-07-06T23:11:55Z
[TRAFODION-2628] SQL engine work for Elasticity
It turns out that the compiler already kept a list of node ids,
not assuming that node ids are consecutively numbered 0...n-1.
However, this list was contained in lots of other data structures
that are dead code, coming from the time before Trafodion was
open-sourced. The change does two things: a) getting rid of obsolete
info and b) maintining a list of node ids in the NAClusterInfo
class.
This change does not include executor modifications. The executor
might work just fine, or we may need to add a fix (or optimization)
for cases where we pick a node id for a new process at runtime.
----
> SQL engine work for Elasticity [TRAFODION-2001]
> -----------------------------------------------
>
> Key: TRAFODION-2628
> URL: https://issues.apache.org/jira/browse/TRAFODION-2628
> Project: Apache Trafodion
> Issue Type: Sub-task
> Components: sql-cmp
> Affects Versions: 2.2-incubating
> Reporter: Hans Zeller
> Assignee: Hans Zeller
> Fix For: 2.2-incubating
>
>
> See discussion in TRAFODION-2001. We need to accommodate node ids in a cluster that contain "holes".
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