Anurag Mantripragada has uploaded a new patch set (#4). ( 
http://gerrit.cloudera.org:8080/14145 )

Change subject: IMPALA-8579: Ignore trivial alter table/partition events.
......................................................................

IMPALA-8579: Ignore trivial alter table/partition events.

Hive generates certain trivial alter events for eg: change only
"transient_lastDdlTime". This is seen in the alter events
accompanying an INSERT event. MetastoreEventProcessor should ignore
such events as these trivial properties are not used by Impala
and they cause unnecessary invalidates/refreshes. This change will
also potentially reduce the likelihood of IMPALA-8877 as back to back
invalidates after INSERT operations are avoided.

Testing:
Added tests respectively to testPartitionEvents() and
testAlterTableEvent() in MetastoreEventProcessorTest class.

Change-Id: I01a59d5170accc014f76f14eb526d96ddcf61f76
---
M fe/src/main/java/org/apache/impala/catalog/events/MetastoreEvents.java
M 
fe/src/test/java/org/apache/impala/catalog/events/MetastoreEventsProcessorTest.java
2 files changed, 150 insertions(+), 0 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/45/14145/4
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I01a59d5170accc014f76f14eb526d96ddcf61f76
Gerrit-Change-Number: 14145
Gerrit-PatchSet: 4
Gerrit-Owner: Anurag Mantripragada <anu...@cloudera.com>
Gerrit-Reviewer: Anurag Mantripragada <anu...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Vihang Karajgaonkar <vih...@cloudera.com>

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