Alex Behm has posted comments on this change. Change subject: Add doc for MT_DOP query option. ......................................................................
Patch Set 1: (1 comment) http://gerrit.cloudera.org:8080/#/c/5652/1/docs/topics/impala_mt_dop.xml File docs/topics/impala_mt_dop.xml: Line 38: <indexterm audience="hidden">MT_DOP query option</indexterm> We should mention somewhere that COMPUTE [INCREMENTAL] STATS on Parquet tables is run with MT_DOP=4 by default. We should also clarify the special meaning of MT_DOP=0, this might need a brief introduction to our multi-threading effort, i.e. that we are incrementally revamping the execution engine, and MT_DOP=0 will revert to using the "old" execution engine. -- To view, visit http://gerrit.cloudera.org:8080/5652 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: comment Gerrit-Change-Id: Ife2786532b425af6d230074f1c0b5c7dcb2b8a92 Gerrit-PatchSet: 1 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: John Russell <[email protected]> Gerrit-Reviewer: Alex Behm <[email protected]> Gerrit-Reviewer: Mostafa Mokhtar <[email protected]> Gerrit-Reviewer: Tim Armstrong <[email protected]> Gerrit-HasComments: Yes
