Michael Leinartas created THRIFT-5598:
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             Summary: contrib/fb303 does not compile after C++ concurrency code 
refactor
                 Key: THRIFT-5598
                 URL: https://issues.apache.org/jira/browse/THRIFT-5598
             Project: Thrift
          Issue Type: Bug
          Components: C++ - Library, Contributed
            Reporter: Michael Leinartas


contrib/fb303 no longer compiles after THRIFT-4730 removed ReadWriteMutex.

The ReadWriteMutex used by fb303 is protecting counter statistics. These are 
very write-heavy and read-light (these are read only when the Service methods 
getCounters() or getCounter() are called). Because of this, retaining a 
read-write mutex to protect these counters is unjustified and we can safely 
swap this out for a normal Mutex.

Compilation also fails after THRIFT-5168 removed generation of *_constants.cpp 
and *_constants.h generation because the fb303 Makefile explicitly depends on 
these unnecessary files



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