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https://issues.apache.org/jira/browse/LENS-576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14907696#comment-14907696
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Deepak Barr commented on LENS-576:
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[INFO] Reactor Summary:
[INFO]
[INFO] Lens Checkstyle Rules .............................. SUCCESS [ 2.715 s]
[INFO] Lens ............................................... SUCCESS [ 4.865 s]
[INFO] Lens API ........................................... SUCCESS [ 30.973 s]
[INFO] Lens API for server and extensions ................. SUCCESS [ 27.578 s]
[INFO] Lens Cube .......................................... SUCCESS [07:00 min]
[INFO] Lens DB storage .................................... SUCCESS [ 26.729 s]
[INFO] Lens Query Library ................................. SUCCESS [ 20.940 s]
[INFO] Lens Hive Driver ................................... SUCCESS [04:11 min]
[INFO] Lens Driver for JDBC ............................... SUCCESS [ 48.057 s]
[INFO] Lens Elastic Search Driver ......................... SUCCESS [ 22.841 s]
[INFO] Lens Server ........................................ SUCCESS [11:01 min]
[INFO] Lens client ........................................ SUCCESS [ 44.960 s]
[INFO] Lens CLI ........................................... SUCCESS [03:47 min]
[INFO] Lens Examples ...................................... SUCCESS [ 11.772 s]
[INFO] Lens Distribution .................................. SUCCESS [ 12.605 s]
[INFO] Lens ML Lib ........................................ SUCCESS [02:00 min]
[INFO] Lens ML Ext Distribution ........................... SUCCESS [ 3.603 s]
[INFO] Lens Regression .................................... SUCCESS [ 16.892 s]
[INFO] Lens UI ............................................ SUCCESS [ 52.362 s]
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 33:29 min
[INFO] Finished at: 2015-09-24T17:33:51+05:30
[INFO] Final Memory: 168M/2792M
[INFO] ------------------------------------------------------------------------
> Cannot retrieve query results on lens server restart
> ----------------------------------------------------
>
> Key: LENS-576
> URL: https://issues.apache.org/jira/browse/LENS-576
> Project: Apache Lens
> Issue Type: Bug
> Reporter: Deepak Barr
> Assignee: Deepak Barr
> Priority: Critical
> Fix For: 2.4
>
> Attachments: LENS-576.3.patch
>
>
> In the event of lens server restart, We can not obtain the query result by
> calling "/queryuiapi/queries/{queryHandle}/httpresultset" API as
> LensPersistentResult does not get created. This is because
> QueryOutputFormatter variable in QueryContext object is always null.This
> QueryOutputFormatter is important to create LensPersistedResultSet (see
> getResultset() method in QueryExecutionServiceImpl class) .
> Reason : One can see that QueryOutputFormatter variable in QueryContext class
> is not serialized. Therefore, on server restart, this variable is always null
> in QueryContext for all queries.
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