Hello Impala Public Jenkins,
I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/17346
to look at the new patch set (#2).
Change subject: IMPALA-10682: Add buffering to hs2-http client in impala-shell
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IMPALA-10682: Add buffering to hs2-http client in impala-shell
This change reduces to following command from 8.5s to 1.5s on my
machine:
shell/impala_shell.py -B -q "select * from tpch_parquet.lineitem limit 100000;"
--protocol hs2-http > /dev/null
This nearly eliminates the speed difference between hs2 and hs2-http.
The root cause of the original slowness is the large number of
calls to socket.recv(). The query above used to call it 2809090 times,
now it is only 9007.
Testing:
- ran shell tests
Change-Id: If11f287be65b10bee2b0afffea118e3dc70fdbbd
---
M shell/impala_client.py
1 file changed, 3 insertions(+), 0 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/46/17346/2
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: If11f287be65b10bee2b0afffea118e3dc70fdbbd
Gerrit-Change-Number: 17346
Gerrit-PatchSet: 2
Gerrit-Owner: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Impala Public Jenkins <[email protected]>
