Riza Suminto has posted comments on this change. ( http://gerrit.cloudera.org:8080/22634 )
Change subject: IMPALA-13850 (part 1): Wait until CatalogD active before resetting ...................................................................... Patch Set 15: (1 comment) http://gerrit.cloudera.org:8080/#/c/22634/15//COMMIT_MSG Commit Message: http://gerrit.cloudera.org:8080/#/c/22634/15//COMMIT_MSG@24 PS15, Line 24: Note that this is a behavior change in legacy catalog : mode (use_local_catalog=false and catalog_topic_mode=full). Previously, : legacy catalog mode will send full database list in its first catalog : topic update. I need some feedback on this behavior change. It is probably best to maintain the old behavior (first topic update is a full topic update) in legacy mode. The reason is, Coordinators with legacy catalog mode will not be able to serve any queries until full topic update is received. Keeping old behavior will let Coordinator serve read-only queries in some degree while catalog failover is happening (albeit with slightly stale metadata). On-demand metadata mode does not require this exception because Coordinator can proactively ask the latest metadata upon metadata invalidation caused by CatalogD failover. -- To view, visit http://gerrit.cloudera.org:8080/22634 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: comment Gerrit-Change-Id: I58cc66dcccedb306ff11893f2916ee5ee6a3efc1 Gerrit-Change-Number: 22634 Gerrit-PatchSet: 15 Gerrit-Owner: Riza Suminto <riza.sumi...@cloudera.com> Gerrit-Reviewer: Abhishek Rawat <ara...@cloudera.com> Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com> Gerrit-Reviewer: Quanlong Huang <huangquanl...@gmail.com> Gerrit-Reviewer: Riza Suminto <riza.sumi...@cloudera.com> Gerrit-Reviewer: Wenzhe Zhou <wz...@cloudera.com> Gerrit-Comment-Date: Sun, 13 Apr 2025 03:33:53 +0000 Gerrit-HasComments: Yes
