Alex Behm has posted comments on this change. ( http://gerrit.cloudera.org:8080/8165 )
Change subject: IMPALA-3316: [DOCS] Add known issue for timezone conversion slowdown ...................................................................... Patch Set 1: (1 comment) http://gerrit.cloudera.org:8080/#/c/8165/1/docs/topics/impala_known_issues.xml File docs/topics/impala_known_issues.xml: http://gerrit.cloudera.org:8080/#/c/8165/1/docs/topics/impala_known_issues.xml@316 PS1, Line 316: such as the number of cores and number of threads involved in the query. State explicitly that slowdowns of up to 30x have been observed for scan-heavy queries. I think that was ultimately the ask of the users. I think it's also important to re-iterate that the setting only has effect for files generated by Hive. For Impala generated files this setting has no effect or slowdown. -- To view, visit http://gerrit.cloudera.org:8080/8165 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I9933ced07e339d589f7f74173cfebe938084e65c Gerrit-Change-Number: 8165 Gerrit-PatchSet: 1 Gerrit-Owner: John Russell <[email protected]> Gerrit-Reviewer: Alex Behm <[email protected]> Gerrit-Reviewer: Attila Jeges <[email protected]> Gerrit-Reviewer: Mostafa Mokhtar <[email protected]> Gerrit-Comment-Date: Fri, 29 Sep 2017 00:50:25 +0000 Gerrit-HasComments: Yes
