Sahil Takiar has uploaded this change for review. ( 
http://gerrit.cloudera.org:8080/16567


Change subject: IMPALA-9485: Enable file handle cache for EC files
......................................................................

IMPALA-9485: Enable file handle cache for EC files

This is essentially a revert of IMPALA-8178. HDFS-14308 added
CanUnbuffer support to the EC input stream APIs in the HDFS client lib.
This patch enables file handle caching for EC files.

Testing:
* Ran core tests against an EC build (ERASURE_CODING=true)

Change-Id: Ieb455eeed02a229a4559d3972dfdac7df32cdb99
---
M be/src/exec/base-sequence-scanner.cc
M be/src/exec/hdfs-orc-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-scanner.cc
M be/src/exec/hdfs-text-scanner.cc
M be/src/exec/parquet/hdfs-parquet-scanner.cc
M be/src/exec/parquet/parquet-page-index.cc
M be/src/exec/parquet/parquet-page-reader.cc
M be/src/exec/scanner-context.cc
M be/src/runtime/io/disk-io-mgr-stress.cc
M be/src/runtime/io/disk-io-mgr-test.cc
M be/src/runtime/io/request-ranges.h
M be/src/runtime/io/scan-range.cc
M be/src/runtime/tmp-file-mgr.cc
M be/src/scheduling/scheduler.cc
M common/thrift/PlanNodes.thrift
M fe/src/main/java/org/apache/impala/planner/HdfsScanNode.java
M tests/custom_cluster/test_hdfs_fd_caching.py
19 files changed, 50 insertions(+), 82 deletions(-)



  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/67/16567/1
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: Ieb455eeed02a229a4559d3972dfdac7df32cdb99
Gerrit-Change-Number: 16567
Gerrit-PatchSet: 1
Gerrit-Owner: Sahil Takiar <stak...@cloudera.com>

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