[ https://issues.apache.org/jira/browse/HIVE-12164?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ashutosh Chauhan updated HIVE-12164: ------------------------------------ Attachment: HIVE-12164.2.patch Addressed Pengcheng's comments. > Remove jdbc stats collection mechanism > -------------------------------------- > > Key: HIVE-12164 > URL: https://issues.apache.org/jira/browse/HIVE-12164 > Project: Hive > Issue Type: Task > Components: Statistics > Reporter: Ashutosh Chauhan > Assignee: Ashutosh Chauhan > Attachments: HIVE-12164.1.patch, HIVE-12164.2.patch, HIVE-12164.patch > > > Though there are some deployments using it, usually its painful to setup > since a valid hive-site.xml is needed on all task nodes (containing > connection details) and for large tasks (with thousands of tasks) results in > a scalability issue with all of them hammering DB at nearly same time. > Because of these pain points alternative stats collection mechanism were > added. FS stats based system is default for some time. > We should remove jdbc stats collection mechanism as it needlessly adds > complexity in TS and FS operators w.r.t key handling. -- This message was sent by Atlassian JIRA (v6.3.4#6332)