[Impala-CR](cdh5-trunk) IMPALA-1619: Support 64-bit allocations.

["Michael Ho (Code Review)" <ge...@cloudera.org>]

Michael Ho has uploaded a new patch set (#6).

Change subject: IMPALA-1619: Support 64-bit allocations.
......................................................................

IMPALA-1619: Support 64-bit allocations.

This change extends MemPool, FreePool and StringBuffer to support
64-bit allocations, fixes a bug decompressor and extends various
places in the code to support 64-bit allocation sizes. With this
change, the text scanner can now decompress compressed files larger
than 1GB.

Note that the UDF interfaces FunctionContext::Allocate() and
FunctionContext::Reallocate() still use 32-bit for the input
argument to avoid breaking compatibility.

In addition, the byte size of a tuple is still assumed to be
within 32-bit. If it needs to be upgraded to 64-bit, it will be
done in a separate change.

Change-Id: I7ed28083d809a86d801a9c063a0aa32c50d32b20
---
M be/src/exec/delimited-text-parser.cc
M be/src/exec/delimited-text-parser.h
M be/src/exec/delimited-text-parser.inline.h
M be/src/exec/hdfs-scanner.cc
M be/src/exec/hdfs-scanner.h
M be/src/exec/hdfs-sequence-scanner.cc
M be/src/exec/hdfs-text-scanner.cc
M be/src/exec/hdfs-text-scanner.h
M be/src/exec/scanner-context.cc
M be/src/runtime/buffered-block-mgr.cc
M be/src/runtime/collection-value-builder.h
M be/src/runtime/free-pool-test.cc
M be/src/runtime/free-pool.h
M be/src/runtime/mem-pool-test.cc
M be/src/runtime/mem-pool.h
M be/src/runtime/string-buffer-test.cc
M be/src/runtime/string-buffer.h
M be/src/udf/udf-internal.h
M be/src/udf/udf.cc
M be/src/udf/udf.h
M be/src/util/bit-util.h
M be/src/util/codec.cc
M be/src/util/codec.h
M be/src/util/decompress-test.cc
M be/src/util/decompress.cc
M common/thrift/generate_error_codes.py
M infra/python/bootstrap_virtualenv.py
M infra/python/deps/download_requirements
A infra/python/deps/python-snappy-0.5.tar.gz
M infra/python/deps/requirements.txt
M tests/query_test/test_compressed_formats.py
31 files changed, 357 insertions(+), 341 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala refs/changes/81/2781/6
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Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I7ed28083d809a86d801a9c063a0aa32c50d32b20
Gerrit-PatchSet: 6
Gerrit-Project: Impala
Gerrit-Branch: cdh5-trunk
Gerrit-Owner: Michael Ho <kw...@cloudera.com>
Gerrit-Reviewer: Dan Hecht <dh...@cloudera.com>
Gerrit-Reviewer: Michael Ho <kw...@cloudera.com>
Gerrit-Reviewer: Tim Armstrong <ta...@cloudera.com>