Will Berkeley has submitted this change and it was merged. ( http://gerrit.cloudera.org:8080/13265 )
Change subject: KUDU-2677 Raise default value for --tablet_history_max_age_sec ...................................................................... KUDU-2677 Raise default value for --tablet_history_max_age_sec This raises the default --tablet_history_max_age_sec to 1 week, to support incremental backup and the diff scans it relies on. Raising the default will cause clients to be able to scan further into the past, possibly into a region where the data has been GC'd. This would result in no rows returned, which might be surprising to some users. This condition will be temporary, and will end when the new default period has passed. We don't expect this to be a problem because we don't think many users are doing scans like this, and if they are they probably adjusted --tablet_history_max_age_sec and so won't be affected by the change in default. If they want to raise their own setting for the flag to accomodate incremental backups then they will be able to take steps to mitigate the above issue. Change-Id: I6398b57ec1abcd12c59a3588dd1a61900c0ccdeb Reviewed-on: http://gerrit.cloudera.org:8080/13265 Reviewed-by: Adar Dembo <[email protected]> Tested-by: Kudu Jenkins --- M src/kudu/tablet/tablet.cc 1 file changed, 6 insertions(+), 4 deletions(-) Approvals: Adar Dembo: Looks good to me, approved Kudu Jenkins: Verified -- To view, visit http://gerrit.cloudera.org:8080/13265 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: kudu Gerrit-Branch: master Gerrit-MessageType: merged Gerrit-Change-Id: I6398b57ec1abcd12c59a3588dd1a61900c0ccdeb Gerrit-Change-Number: 13265 Gerrit-PatchSet: 3 Gerrit-Owner: Will Berkeley <[email protected]> Gerrit-Reviewer: Adar Dembo <[email protected]> Gerrit-Reviewer: Kudu Jenkins (120) Gerrit-Reviewer: Will Berkeley <[email protected]>
