Hello Zoltan Borok-Nagy, Joe McDonnell, Impala Public Jenkins,

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

    http://gerrit.cloudera.org:8080/19178

to look at the new patch set (#12).

Change subject: IMPALA-9488: Add metrics for EC reads
......................................................................

IMPALA-9488: Add metrics for EC reads

Adds metric tracking erasure-coded bytes read. Adds ScanRange::TestInfo
to pass file info through calls of AllocateScanRange so it's easier to
add erasure coding as another piece of file info.

Adds a test to verify that the expected number of bytes are read for
existing read metrics and the new `erasure-coded-bytes-read` metric when
doing a select.

Change-Id: Ieb06bac9dea4b632621653d2935e9a7b2dc81341
---
M be/src/exec/base-sequence-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/orc/hdfs-orc-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/exec/text/hdfs-text-scanner.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/hdfs-file-reader.cc
M be/src/runtime/io/request-context.h
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 be/src/util/impalad-metrics.cc
M be/src/util/impalad-metrics.h
M common/thrift/PlanNodes.thrift
M common/thrift/metrics.json
M fe/src/main/java/org/apache/impala/planner/HdfsScanNode.java
A tests/query_test/test_io_metrics.py
24 files changed, 256 insertions(+), 116 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/78/19178/12
--
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ieb06bac9dea4b632621653d2935e9a7b2dc81341
Gerrit-Change-Number: 19178
Gerrit-PatchSet: 12
Gerrit-Owner: Michael Smith <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
Gerrit-Reviewer: Joe McDonnell <[email protected]>
Gerrit-Reviewer: Michael Smith <[email protected]>
Gerrit-Reviewer: Zoltan Borok-Nagy <[email protected]>

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