Joe McDonnell created IMPALA-11785:
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Summary: impala-shell should produce a warning if Thrift's
fastbinary package isn't working
Key: IMPALA-11785
URL: https://issues.apache.org/jira/browse/IMPALA-11785
Project: IMPALA
Issue Type: Improvement
Components: Clients
Affects Versions: Impala 4.3.0
Reporter: Joe McDonnell
Thrift's fastbinary package accelerates the binary protocol for Thrift with
native code, and it can make a large difference in performance for impala-shell
(and other clients). Differences in compilers or other build-time discrepancies
can cause it to fail to load. When that happens, it falls back to the
non-accelerated Python code.
Currently, there is no warning when it falls back to the non-accelerated code.
We should change impala-shell to issue a warning in this case. One way to do
that is to try to import thrift.protocol.fastbinary and issue a warning if it
fails to import.
{noformat}
try:
import thrift.protocol.fastbinary
print("Successfully imported fastbinary")
except:
print("Could not import fastbinary"){noformat}
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