[Impala-ASF-CR] IMPALA-5412 Fix scan result with partitions on same file

["Gabor Kaszab (Code Review)" <ge...@cloudera.org>]

Gabor Kaszab has uploaded a new patch set (#2).

Change subject: IMPALA-5412 Fix scan result with partitions on same file
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IMPALA-5412 Fix scan result with partitions on same file

The maps storing file descriptors and file metadata were using filename as a key.
Multiple partitions pointing to the same filesystem location resulted that these
map entries were occasionally overwritted by the other partition poing to the same.

As a solution the map key was enhanced to contain a pair of partition ID and file name.

Change-Id: Ie74b305377248045c0d87b911943e1cabb7223e9
---
M be/src/exec/base-sequence-scanner.cc
M be/src/exec/hdfs-parquet-scanner.cc
M be/src/exec/hdfs-scan-node-base.cc
M be/src/exec/hdfs-scan-node-base.h
M be/src/exec/hdfs-text-scanner.cc
M be/src/exec/scanner-context.cc
M tests/metadata/test_partition_metadata.py
7 files changed, 109 insertions(+), 34 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/25/7625/2
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ie74b305377248045c0d87b911943e1cabb7223e9
Gerrit-PatchSet: 2
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Gabor Kaszab <ga...@cloudera.com>
Gerrit-Reviewer: Alex Behm <al...@cloudera.com>
Gerrit-Reviewer: Attila Jeges <at...@cloudera.com>
Gerrit-Reviewer: Laszlo Gaal <la...@cloudera.com>
Gerrit-Reviewer: Matthew Jacobs <mj...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <ta...@cloudera.com>