Tim Armstrong c8e15e484c IMPALA-4593,IMPALA-4635: fix some python build issues ...

Build C/C++ packages with toolchain GCC to avoid ABI compatibility
issues. This requires a multi-step bootstrapping process:
1. install basic non-C/C++ packages into the virtualenv
2. use Python 2.7 from the virtualenv to bootstrap the toolchain
3. use toolchain gcc to build C/C++ packages
4. build the kudu-python package with toolchain gcc and Cython

To avoid potentially pulling in cached versions of packages
built with a different compiler, this patch also disables pip's
caching. This should not have a significant effect on performance
since we've enabled ccache and cache downloaded packages in
infra/python/deps.

Improve bootstrapping time significantly by using ccache and by
parallelising the numpy build - the most expensive part of the
install process. On a system with a warmed-up ccache,
bootstrapping after deleting infra/python/env takes 1m16s. Previously
it could take over 5m.

Testing:
Tested manually on Ubuntu 16.04 to confirm that it fixes the ABI
problem mentioned in IMPALA-4593. Initially "import kudu" failed
in my dev environment. After deleting infra/python/env and
re-bootstrapping, "import kudu" succeeded.

Also ran the standard test suite on CentOS 6 and built Impala on
a range of platforms (CentOS 5,6,7; SLES 11,12; Debian 6,7;
Ubuntu12.04,14.04,16.04) to make sure nothing broke.

Change-Id: I9e807510eddeb354069e0478363f649a1c1b75cf
Reviewed-on: http://gerrit.cloudera.org:8080/6218
Reviewed-by: Tim Armstrong <tarmstrong@cloudera.com>
Tested-by: Impala Public Jenkins

2017-03-07 02:56:18 +00:00

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