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This upgrades GCC and libstdc++ to version 7.5.0. There
have been ABI changes since 4.9.2, so this means that
the native-toolchain produced with the new compiler is
not interoperable with one produced by the old compiler.
To allow that transition, IMPALA_TOOLCHAIN_PACKAGES_HOME
is now a subdirectory of IMPALA_TOOLCHAIN
(toolchain-packages-gcc${IMPALA_GCC_VERSION}) to distinguish
it from the old packages.
Some Python packages in the impala-python virtualenv are
compiled using the toolchain GCC and now use the new ABI.
This leads to two changes:
1. When constructing the LD_LIBRARY_PATH for impala-python,
we include the GCC libstdc++ libraries. Otherwise, certain
Python packages that use C++ fail on older OSes like Centos 7.
This fixes IMPALA-9804.
2. Since developers work on various branches, this changes
the virtualenv's directory location to a directory with
the GCC version in the name. This allows the virtualenv
built with GCC 7 to coexist with the current virtualenv
built with GCC 4.9.2. The location for the old virtualenv is
${IMPALA_HOME}/infra/python/env. The new location is
${IMPALA_HOME}/infra/python/env-gcc${IMPALA_GCC_VERSION}. This
required updating several impala-python scripts.
There are various odds-and-ends related to the transition:
1. Due to the small string optimization, the size of std::string
changed, which means that various data structures also changed
in size. This required updating some static asserts.
2. There is a bug in clang-tidy that reports a use-after-free
for some code using std::shared_ptr. Clang is not modeling
the shared_ptr correctly, so it is a false-positive. As a workaround,
this disables the clang-analyzer-cplusplus.NewDelete diagnostic.
3. Various small compilation fixes (includes, etc).
Performance testing:
- Ran single-node performance tests on TPC-H for the following
configurations:
- TPC-H Parquet scale 30 with normal configurations
- TPC-H Parquet scale 30 with codegen disabled
- TPC-H Kudu scale 10
None found any significant regressions. Full results are
posted on the JIRA.
- Ran single-node performance tests on targeted-perf scale 10.
No significant regressions.
- The size of binaries (impalad, etc) is slightly smaller with the new GCC:
GCC 4.9.2 release impalad binary: 545664
GCC 7.5.0 release impalad binary: 539900
- Compilation in DEBUG mode is roughly 15-25% faster
Functional testing:
- Ran core jobs, exhaustive release jobs, UBSAN
Change-Id: Ia0beb2b618ba669c9699f8dbc0c52d1203d004e4
Reviewed-on: http://gerrit.cloudera.org:8080/16045
Reviewed-by: Joe McDonnell <joemcdonnell@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
24 lines
1.0 KiB
Bash
Executable File
24 lines
1.0 KiB
Bash
Executable File
#!/bin/bash
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##############################################################################
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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##############################################################################
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source "$(dirname "$0")/impala-python-common.sh"
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exec "$PY_ENV_DIR/bin/python" "$@"
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