DarvenDuan opened a new pull request, #40579: URL: https://github.com/apache/doris/pull/40579
## Proposed changes This PR solves 2 problems of schema change for cooldown data: 1. Schema change will build a new tablet for base tablet, and all replicas do this separately, so the cooldown data SC writes all replicas to the remote storage, But the cooldown rowsets just need one master replica to cooldown, the other replicas follow the master. To optimize this issue, Doris can just write the new rowsets to the local storage, and the tablet will cooldown this rowsets automatically for just one mater replica. 2. In schema change job and rollup job, FE generates `createReplicaTask`, which specifies the storage policy of the tablets to create, table's storage policy may be empty if we just set the partitions' storage policy, so we use partition's storage policy instead of table. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org For additional commands, e-mail: commits-h...@doris.apache.org
