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Posted to reviews@helix.apache.org by GitBox <gi...@apache.org> on 2020/08/18 22:26:08 UTC
[GitHub] [helix] xyuanlu opened a new issue #1291: Helix controller leadership switch is slow for large cluster
xyuanlu opened a new issue #1291:
URL: https://github.com/apache/helix/issues/1291
### Describe the bug
The controller switch time for large scale cluster is slow. It takes around ~60s for a standby controller to obtain leadership of a cluster with ~50 participants and ~700 resources. The service's availability is impacted under this period of time.
### To Reproduce
This issue can be constantly reproduced in large cluster set up.
### Expected behavior
The ultimate goal would be reducing the leadership handoff time to ~10s.
### Additional context
The performance improvement is a long process. We should do small improvements one at a time and achieve the final goal step by step.
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[GitHub] [helix] pkuwm closed issue #1291: Helix controller leadership switch is slow for large cluster
Posted by GitBox <gi...@apache.org>.
pkuwm closed issue #1291:
URL: https://github.com/apache/helix/issues/1291
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