[Impala-ASF-CR] IMPALA-6994: Avoid reloading a table's HMS data for file-only operations

["Pranay Singh (Code Review)" <ge...@cloudera.org>]

Hello Bharath Vissapragada, Todd Lipcon, Vuk Ercegovac, 

I'd like you to reexamine a change. Please visit

    http://gerrit.cloudera.org:8080/10587

to look at the new patch set (#3).

Change subject: IMPALA-6994: Avoid reloading a table's HMS data for file-only operations
......................................................................

IMPALA-6994: Avoid reloading a table's HMS data for file-only operations

The problem is that while inserting a new row to an existing partition
of a HDFS table or to an unpartitioned table, catalogd makes an unnecessary
call to Hive MetaStore to do a getTable() and list the partitions of the
table. In such a case where a row is being inserted to an existing
partition or to an unpartitioned table only the file metadata for
HDFS tables needs to be updated.

This change avoids calling the Hive Meta Store in updatePartitionsFromHms()
by providing a hint from the caller, to skip loading the partitions.

Testing:
  Ran core test without failure.

Change-Id: I331bb0371fde287f43a85b025b4f98cb45f3eb3c
---
M fe/src/main/java/org/apache/impala/catalog/HdfsTable.java
M fe/src/main/java/org/apache/impala/service/CatalogOpExecutor.java
2 files changed, 126 insertions(+), 52 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/87/10587/3
-- 
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I331bb0371fde287f43a85b025b4f98cb45f3eb3c
Gerrit-Change-Number: 10587
Gerrit-PatchSet: 3
Gerrit-Owner: Pranay Singh
Gerrit-Reviewer: Bharath Vissapragada <bh...@cloudera.com>
Gerrit-Reviewer: Pranay Singh
Gerrit-Reviewer: Todd Lipcon <to...@apache.org>
Gerrit-Reviewer: Vuk Ercegovac <ve...@cloudera.com>