Tracking issue: refactor cluster mode
ZuLiangWang opened this issue · comments
Description
The cluster mode of CeresDB has many defects at present, and we need a better distributed solution. We also need to refactor the current code to make the cluster mode of CeresDB more robust.
Proposal
- Support shard to transfer leader based on distributed lock using
etcd. The modifications to the CeresDB section are in this pull request. apache/horaedb#706 - Refactor scheduler module, based on the new interaction model, use scheduler to manage the creation of procedures. #157
- Refactor procedure manager, support executing procedures in shard-level serial manner. (Need to support scenarios where one procedure is associated with multiple shards.) #157
- Refactor all types of procedures to remove internal modifications to shard metadata and instead update them through heartbeat. #157
Additional context