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Posted to reviews@impala.apache.org by "Henry Robinson (Code Review)" <ge...@cloudera.org> on 2017/06/19 19:04:17 UTC

[Impala-ASF-CR] IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Henry Robinson has uploaded a new change for review.

  http://gerrit.cloudera.org:8080/7226

Change subject: IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization
......................................................................

IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Change allocation pattern for Codec objects in RowBatch to be
stack-allocated. Make c'tors and Init() methods of codec implementations
publicly visible in order to do so.

Change-Id: Ia4b5a8d2cc315db50e5d70b1191702206de3450d
---
M be/src/runtime/row-batch.cc
M be/src/util/codec.h
M be/src/util/compress.h
M be/src/util/decompress.h
4 files changed, 57 insertions(+), 77 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/26/7226/1
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Gerrit-MessageType: newchange
Gerrit-Change-Id: Ia4b5a8d2cc315db50e5d70b1191702206de3450d
Gerrit-PatchSet: 1
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Henry Robinson <he...@cloudera.com>

[Impala-ASF-CR] IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Posted by "Henry Robinson (Code Review)" <ge...@cloudera.org>.
Henry Robinson has posted comments on this change.

Change subject: IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization
......................................................................


Patch Set 4:

I fixed the placement of WARN_UNUSED_RESULT in the previous patchset, and also changed a method signature in the parquet writer so that the status of a compression operation could be checked. Please take another quick look at hdfs-parquet-table-writer.cc!

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Gerrit-Change-Id: Ia4b5a8d2cc315db50e5d70b1191702206de3450d
Gerrit-PatchSet: 4
Gerrit-Project: Impala-ASF
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Gerrit-Owner: Henry Robinson <he...@cloudera.com>
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[Impala-ASF-CR] IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Posted by "Henry Robinson (Code Review)" <ge...@cloudera.org>.
Henry Robinson has posted comments on this change.

Change subject: IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization
......................................................................


Patch Set 3: Code-Review+2

Carry +2, rebase.

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Gerrit-Change-Id: Ia4b5a8d2cc315db50e5d70b1191702206de3450d
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Gerrit-Owner: Henry Robinson <he...@cloudera.com>
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[Impala-ASF-CR] IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Posted by "Henry Robinson (Code Review)" <ge...@cloudera.org>.
Hello Impala Public Jenkins, Michael Ho, Sailesh Mukil, Tim Armstrong,

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

    http://gerrit.cloudera.org:8080/7226

to look at the new patch set (#5).

Change subject: IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization
......................................................................

IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Change allocation pattern for Codec objects in RowBatch to be
stack-allocated. Make c'tors and Init() methods of codec implementations
publicly visible in order to do so.

Refactor HdfsParquetWriter etc. to deal properly with Status returned in
all cases.

Change-Id: Ia4b5a8d2cc315db50e5d70b1191702206de3450d
---
M be/src/exec/hdfs-avro-table-writer.cc
M be/src/exec/hdfs-parquet-table-writer.cc
M be/src/exec/hdfs-sequence-table-writer.cc
M be/src/exec/parquet-column-stats.cc
M be/src/exec/parquet-column-stats.h
M be/src/exec/parquet-column-stats.inline.h
M be/src/experiments/compression-test.cc
M be/src/runtime/row-batch.cc
M be/src/util/codec.h
M be/src/util/compress.h
M be/src/util/decompress-test.cc
M be/src/util/decompress.h
12 files changed, 160 insertions(+), 151 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/26/7226/5
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: Ia4b5a8d2cc315db50e5d70b1191702206de3450d
Gerrit-PatchSet: 5
Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-Owner: Henry Robinson <he...@cloudera.com>
Gerrit-Reviewer: Henry Robinson <he...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins
Gerrit-Reviewer: Michael Ho <kw...@cloudera.com>
Gerrit-Reviewer: Sailesh Mukil <sa...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <ta...@cloudera.com>

[Impala-ASF-CR] IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Posted by "Michael Ho (Code Review)" <ge...@cloudera.org>.
Michael Ho has posted comments on this change.

Change subject: IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization
......................................................................


Patch Set 1:

(6 comments)

http://gerrit.cloudera.org:8080/#/c/7226/1/be/src/runtime/row-batch.cc
File be/src/runtime/row-batch.cc:

PS1, Line 100: DCHECK(input_batch.compression_type == THdfsCompression::LZ4)
DCHECK_EQ();


Line 226:     VLOG_ROW << "uncompressed size: " << size << ", compressed size: " << compressed_size;
> nit: Not your change.
Not your change either but it's unfortunate that we don't call Close() if ProcessBlock() fails above.


http://gerrit.cloudera.org:8080/#/c/7226/1/be/src/util/compress.h
File be/src/util/compress.h:

Line 47:   virtual Status Init();
WARN_UNUSED_RESULT


http://gerrit.cloudera.org:8080/#/c/7226/1/be/src/util/decompress.h
File be/src/util/decompress.h:

PS1, Line 38: ;
WARN_UNUSED_RESULT. Same below.


Line 41:       const uint8_t* input, int64_t* output_length, uint8_t** output);
WARN_UNUSED_RESULT. Same below.


Line 44:       bool* stream_end);
WARN_UNUSED_RESULT. Same below.


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Gerrit-Change-Id: Ia4b5a8d2cc315db50e5d70b1191702206de3450d
Gerrit-PatchSet: 1
Gerrit-Project: Impala-ASF
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Gerrit-Owner: Henry Robinson <he...@cloudera.com>
Gerrit-Reviewer: Michael Ho <kw...@cloudera.com>
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[Impala-ASF-CR] IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Posted by "Impala Public Jenkins (Code Review)" <ge...@cloudera.org>.
Impala Public Jenkins has posted comments on this change.

Change subject: IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization
......................................................................


Patch Set 3:

Build started: http://jenkins.impala.io:8080/job/gerrit-verify-dryrun/761/

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Gerrit-Change-Id: Ia4b5a8d2cc315db50e5d70b1191702206de3450d
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Gerrit-Project: Impala-ASF
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Gerrit-Owner: Henry Robinson <he...@cloudera.com>
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[Impala-ASF-CR] IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Posted by "Tim Armstrong (Code Review)" <ge...@cloudera.org>.
Tim Armstrong has posted comments on this change.

Change subject: IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization
......................................................................


Patch Set 4:

Sorry that was a link to the wrong commit, this is the branch with the correct one https://github.com/timarmstrong/incubator-impala/commits/fix-table-writers

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[Impala-ASF-CR] IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Posted by "Impala Public Jenkins (Code Review)" <ge...@cloudera.org>.
Impala Public Jenkins has posted comments on this change.

Change subject: IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization
......................................................................


Patch Set 3: Verified-1

Build failed: http://jenkins.impala.io:8080/job/gerrit-verify-dryrun/761/

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Gerrit-Change-Id: Ia4b5a8d2cc315db50e5d70b1191702206de3450d
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[Impala-ASF-CR] IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Posted by "Sailesh Mukil (Code Review)" <ge...@cloudera.org>.
Sailesh Mukil has posted comments on this change.

Change subject: IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization
......................................................................


Patch Set 1: Code-Review+1

(1 comment)

http://gerrit.cloudera.org:8080/#/c/7226/1/be/src/runtime/row-batch.cc
File be/src/runtime/row-batch.cc:

Line 226:     VLOG_ROW << "uncompressed size: " << size << ", compressed size: " << compressed_size;
nit: Not your change.
It's a no-op, but I think we should call compressor.Close() to be consistent.


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[Impala-ASF-CR] IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Posted by "Henry Robinson (Code Review)" <ge...@cloudera.org>.
Henry Robinson has abandoned this change.

Change subject: IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization
......................................................................


Abandoned

Bad merge - will restore when I fix it.

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[Impala-ASF-CR] IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Posted by "Henry Robinson (Code Review)" <ge...@cloudera.org>.
Hello Impala Public Jenkins, Michael Ho, Sailesh Mukil, Tim Armstrong,

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

    http://gerrit.cloudera.org:8080/7226

to look at the new patch set (#4).

Change subject: IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization
......................................................................

IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Change allocation pattern for Codec objects in RowBatch to be
stack-allocated. Make c'tors and Init() methods of codec implementations
publicly visible in order to do so.

Change signature of BaseColumnWriter::FinalizeCurrentPage() so that
result of ProcessBlock32() can be properly checked.

Change-Id: Ia4b5a8d2cc315db50e5d70b1191702206de3450d
---
M be/src/exec/hdfs-parquet-table-writer.cc
M be/src/experiments/compression-test.cc
M be/src/runtime/row-batch.cc
M be/src/util/codec.h
M be/src/util/compress.h
M be/src/util/decompress-test.cc
M be/src/util/decompress.h
7 files changed, 119 insertions(+), 122 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/26/7226/4
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Gerrit-Change-Id: Ia4b5a8d2cc315db50e5d70b1191702206de3450d
Gerrit-PatchSet: 4
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Gerrit-Owner: Henry Robinson <he...@cloudera.com>
Gerrit-Reviewer: Henry Robinson <he...@cloudera.com>
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Gerrit-Reviewer: Michael Ho <kw...@cloudera.com>
Gerrit-Reviewer: Sailesh Mukil <sa...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <ta...@cloudera.com>

[Impala-ASF-CR] IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Posted by "Tim Armstrong (Code Review)" <ge...@cloudera.org>.
Tim Armstrong has posted comments on this change.

Change subject: IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization
......................................................................


Patch Set 1: Code-Review+2

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[Impala-ASF-CR] IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Posted by "Michael Ho (Code Review)" <ge...@cloudera.org>.
Michael Ho has posted comments on this change.

Change subject: IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization
......................................................................


Patch Set 3: Code-Review+1

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[Impala-ASF-CR] IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Posted by "Henry Robinson (Code Review)" <ge...@cloudera.org>.
Henry Robinson has posted comments on this change.

Change subject: IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization
......................................................................


Patch Set 1:

(6 comments)

http://gerrit.cloudera.org:8080/#/c/7226/1/be/src/runtime/row-batch.cc
File be/src/runtime/row-batch.cc:

PS1, Line 100: DCHECK(input_batch.compression_type == THdfsCompression::LZ4)
> DCHECK_EQ();
Done


Line 226:     VLOG_ROW << "uncompressed size: " << size << ", compressed size: " << compressed_size;
> Not your change either but it's unfortunate that we don't call Close() if P
Done - used a ScopedExitTrigger to make Close() is always called.


http://gerrit.cloudera.org:8080/#/c/7226/1/be/src/util/compress.h
File be/src/util/compress.h:

Line 47:   virtual Status Init();
> WARN_UNUSED_RESULT
Done


http://gerrit.cloudera.org:8080/#/c/7226/1/be/src/util/decompress.h
File be/src/util/decompress.h:

PS1, Line 38: ;
> WARN_UNUSED_RESULT. Same below.
Done


Line 41:       const uint8_t* input, int64_t* output_length, uint8_t** output);
> WARN_UNUSED_RESULT. Same below.
Done


Line 44:       bool* stream_end);
> WARN_UNUSED_RESULT. Same below.
Done


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Gerrit-Owner: Henry Robinson <he...@cloudera.com>
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[Impala-ASF-CR] IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Posted by "Henry Robinson (Code Review)" <ge...@cloudera.org>.
Hello Sailesh Mukil, Tim Armstrong,

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

    http://gerrit.cloudera.org:8080/7226

to look at the new patch set (#2).

Change subject: IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization
......................................................................

IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Change allocation pattern for Codec objects in RowBatch to be
stack-allocated. Make c'tors and Init() methods of codec implementations
publicly visible in order to do so.

Change-Id: Ia4b5a8d2cc315db50e5d70b1191702206de3450d
---
M be/src/runtime/row-batch.cc
M be/src/util/codec.h
M be/src/util/compress.h
M be/src/util/decompress.h
4 files changed, 93 insertions(+), 104 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/26/7226/2
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Gerrit-Change-Id: Ia4b5a8d2cc315db50e5d70b1191702206de3450d
Gerrit-PatchSet: 2
Gerrit-Project: Impala-ASF
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Gerrit-Owner: Henry Robinson <he...@cloudera.com>
Gerrit-Reviewer: Michael Ho <kw...@cloudera.com>
Gerrit-Reviewer: Sailesh Mukil <sa...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <ta...@cloudera.com>

[Impala-ASF-CR] IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization

Posted by "Tim Armstrong (Code Review)" <ge...@cloudera.org>.
Tim Armstrong has posted comments on this change.

Change subject: IMPALA-5532: Stack-allocate compressors in RowBatch (de)serialization
......................................................................


Patch Set 4:

(1 comment)

http://gerrit.cloudera.org:8080/#/c/7226/4/be/src/exec/hdfs-parquet-table-writer.cc
File be/src/exec/hdfs-parquet-table-writer.cc:

Line 327:         Status status = FinalizeCurrentPage();
This doesn't seem right - why return a Status if we're going to assume that it's always ok.

I actually had a branch where I was going through and fixing all the dropped statuses found by GCC7's [[nodiscard]]. My fixes for propagating the table writer status are here:

https://github.com/timarmstrong/incubator-impala/commit/6a9cb5a1d79c52001597b58eb073ff5b70a239f4

I already ran a build with these fixes. Maybe we can just fold that into here.


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