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https://issues.apache.org/jira/browse/TAJO-356?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13962496#comment-13962496
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Tajo QA commented on TAJO-356:
------------------------------
{color:red}*-1 overall.*{color} Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12639037/TAJO-356.patch
against master revision 5b0cf0d.
{color:green}+1 @author.{color} The patch does not contain any @author
tags.
{color:green}+1 tests included.{color} The patch appears to include 16 new
or modified test files.
{color:green}+1 javac.{color} The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc.{color} The applied patch does not increase the
total number of javadoc warnings.
{color:green}+1 checkstyle.{color} The patch generated 0 code style errors.
{color:red}-1 findbugs.{color} The patch appears to introduce 216 new
Findbugs (version 1.3.9) warnings.
{color:green}+1 release audit.{color} The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests.{color} The patch passed unit tests in
tajo-algebra tajo-catalog/tajo-catalog-common tajo-client
tajo-core/tajo-core-backend tajo-core/tajo-core-pullserver tajo-storage.
Test results:
https://builds.apache.org/job/PreCommit-TAJO-Build/313//testReport/
Findbugs warnings:
https://builds.apache.org/job/PreCommit-TAJO-Build/313//artifact/incubator-tajo/patchprocess/newPatchFindbugsWarningstajo-core-pullserver.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-TAJO-Build/313//artifact/incubator-tajo/patchprocess/newPatchFindbugsWarningstajo-core-backend.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-TAJO-Build/313//artifact/incubator-tajo/patchprocess/newPatchFindbugsWarningstajo-client.html
Findbugs warnings:
https://builds.apache.org/job/PreCommit-TAJO-Build/313//artifact/incubator-tajo/patchprocess/newPatchFindbugsWarningstajo-catalog-common.html
Console output: https://builds.apache.org/job/PreCommit-TAJO-Build/313//console
This message is automatically generated.
> Improve TajoClient to directly get query results in the first request
> ---------------------------------------------------------------------
>
> Key: TAJO-356
> URL: https://issues.apache.org/jira/browse/TAJO-356
> Project: Tajo
> Issue Type: Improvement
> Components: client
> Affects Versions: 0.8-incubating, 1.0-incubating
> Reporter: Hyunsik Choi
> Assignee: Hyunsik Choi
> Fix For: 0.8-incubating, 1.0-incubating
>
> Attachments: TAJO-356.patch
>
>
> Currently, TajoClient cannot deal with simple queries (e.g., select * from
> table limit 1 or select 1) which are executed in TajoMaster without
> distributed execution. The final results are always stored in HDFS, and
> TajoClient gets the result via scanner with TableDesc obtained from
> GetQueryResultResponse.
> For simple queries directly executed at TajoMaster, TajoClient needs to
> directly get some binary serialized rows results from GetQueryStatusResponse
> or GetQueryResultResponse instead of reading materialized tables.
> This feature would be also useful for low latency queries, EXPLAIN clauses
> and expr-only statements without FROM clause.
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