This is an automated email from the ASF dual-hosted git repository. laiyingchun pushed a commit to branch branch-1.17.x in repository https://gitbox.apache.org/repos/asf/kudu.git
commit afc82e323b0527ca7b96b51bad6583f935a34e85 Author: Mahesh Reddy <[email protected]> AuthorDate: Fri Jul 21 14:43:54 2023 -0400 KUDU-3476: Update 1.17 release notes This patch udpates the release notes for the 1.17 release to include the range aware replica placement feature. Change-Id: I430cf540731860ec9209f5c6026cdc4431a3d2bf Reviewed-on: http://gerrit.cloudera.org:8080/20242 Reviewed-by: Yingchun Lai <[email protected]> Tested-by: Kudu Jenkins --- docs/release_notes.adoc | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/docs/release_notes.adoc b/docs/release_notes.adoc index 657997dc5..315944e7e 100644 --- a/docs/release_notes.adoc +++ b/docs/release_notes.adoc @@ -119,6 +119,11 @@ this functionality, use the newly introduced `SetSplitSizeBytes()` method of the specify how many bytes of data each token should scan (see link:https://issues.apache.org/jira/browse/KUDU-3393[KUDU-3393]). +* Kudu's default replica placement algorithm is now range and table aware to prevent hotspotting +unlike the old power of two choices algorithm. New replicas from the same range are spread evenly +across available tablet servers, the table the range belongs to is used as a tiebreaker (see +link:https://issues.apache.org/jira/browse/KUDU-3476[KUDU-3476]). + * Statistics on various write operations is now available via Kudu client API at the session level (see link:https://issues.apache.org/jira/browse/KUDU-3351[KUDU-3351], link:https://issues.apache.org/jira/browse/KUDU-3365[KUDU-3365]).
