Joe McDonnell created IMPALA-11319:
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Summary: Remove C++ Thrift code generation dependency on fb303
Key: IMPALA-11319
URL: https://issues.apache.org/jira/browse/IMPALA-11319
Project: IMPALA
Issue Type: Improvement
Components: Infrastructure
Affects Versions: Impala 4.2.0
Reporter: Joe McDonnell
When generating C++ code for our Thrift data structures, a few Thrift files
depend on fb303. Unfortunately, fb303 is part of the contrib directory for
Thrift and has no guarantee of maintenance. In particular, C++ fb303 seems
uncommon, so this can cause problems when trying to upgrade Thrift.
The Thrift file that brings in the dependency on fb303 is
hive_metastore.thrift's ThriftHiveMetastore service. Impala's C++ code only
uses the regular thrift data structure from hive_metastore.thrift, and does not
need the ThriftHiveMetastore service. It seems possible for us to eliminate the
fb303 C++ dependency.
One way to do that is to have a script the generates a modified
hive_metastore.thrift file without the ThriftHiveMetastore service and without
the include of fb303. Using this for the C++ Thrift compilation would generate
code without the need for fb303. Python and Java would remain the same, because
Python tests do use ThriftHiveMetastore.
On the toolchain side, this would allow us to eliminate the C++ compilation of
fb303.
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