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https://issues.apache.org/jira/browse/HIVE-26116?focusedWorklogId=752971&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-752971
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ASF GitHub Bot logged work on HIVE-26116:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 05/Apr/22 16:03
            Start Date: 05/Apr/22 16:03
    Worklog Time Spent: 10m 
      Work Description: klcopp commented on code in PR #3177:
URL: https://github.com/apache/hive/pull/3177#discussion_r842986110


##########
ql/src/java/org/apache/hadoop/hive/ql/txn/compactor/Initiator.java:
##########
@@ -320,10 +320,19 @@ private boolean 
foundCurrentOrFailedCompactions(ShowCompactResponse compactions,
     if (compactions.getCompacts() == null) {
       return false;
     }
+
+    //In case of an aborted Dynamic partition insert, the created entry in the 
compaction queue does not contain
+    //a partition name even for partitioned tables. As a result it can happen 
that the ShowCompactResponse contains
+    //an element without partition name for partitioned tables. Therefore, it 
is necessary to check the partition name of
+    //the ShowCompactResponseElement even if the CompactionInfo.partName is 
not null. These special compaction requests
+    //are skipped by the worker, and only cleaner will pick them up, so in 
this special case it is OK to schedule a
+    //compaction for the particular table and partition even if the dynamic 
partition abort originated compaction request
+    //is still in WORKING or INITIATED state.

Review Comment:
   It's also okay because the DP abort compaction doesn't specify a partition, 
so it can't count as a compaction on the partition we are currently 
investigating.





Issue Time Tracking
-------------------

    Worklog Id:     (was: 752971)
    Time Spent: 50m  (was: 40m)

> Fix handling of compaction requests originating from aborted dynamic 
> partition queries in Initiator
> ---------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-26116
>                 URL: https://issues.apache.org/jira/browse/HIVE-26116
>             Project: Hive
>          Issue Type: Bug
>            Reporter: László Végh
>            Assignee: László Végh
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 50m
>  Remaining Estimate: 0h
>
> Compaction requests originated from an abort of a dynamic partition insert 
> can cause a NPE in Initiator.



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