Alex Behm has posted comments on this change. ( http://gerrit.cloudera.org:8080/9915 )
Change subject: IMPALA-6667: [DOCS] max_cached_file_handles is enabled by default ...................................................................... Patch Set 1: (3 comments) http://gerrit.cloudera.org:8080/#/c/9915/1/docs/topics/impala_scalability.xml File docs/topics/impala_scalability.xml: http://gerrit.cloudera.org:8080/#/c/9915/1/docs/topics/impala_scalability.xml@1047 PS1, Line 1047: The default value for the setting is 20000. To change the value, set At this point in the text, the max_cached_file_handles setting has not yet been introduced, so it's not clear what "the setting" refers to. http://gerrit.cloudera.org:8080/#/c/9915/1/docs/topics/impala_scalability.xml@1050 PS1, Line 1050: initial default value of 20000, adjust upward if NameNode overhead is NameNode overhead -> NameNode request load http://gerrit.cloudera.org:8080/#/c/9915/1/docs/topics/impala_scalability.xml@1053 PS1, Line 1053: that caching 20,000 file handles requires up to 120 MB on each DataNode. 120 MB on each Impala executor (not DataNode) -- To view, visit http://gerrit.cloudera.org:8080/9915 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I61b1dc10c61415c673b49d339ba0d27f6a32a51e Gerrit-Change-Number: 9915 Gerrit-PatchSet: 1 Gerrit-Owner: Alex Rodoni <arod...@cloudera.com> Gerrit-Reviewer: Alex Behm <alex.b...@cloudera.com> Gerrit-Reviewer: Impala Public Jenkins Gerrit-Reviewer: Joe McDonnell <joemcdonn...@cloudera.com> Gerrit-Reviewer: John Russell <jruss...@cloudera.com> Gerrit-Comment-Date: Wed, 04 Apr 2018 20:48:28 +0000 Gerrit-HasComments: Yes