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Posted to dev@helix.apache.org by "Kanak Biscuitwala (JIRA)" <ji...@apache.org> on 2013/10/24 01:16:43 UTC
[jira] [Created] (HELIX-277) FULL_AUTO rebalancer should not prefer
nodes that are just coming up
Kanak Biscuitwala created HELIX-277:
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Summary: FULL_AUTO rebalancer should not prefer nodes that are just coming up
Key: HELIX-277
URL: https://issues.apache.org/jira/browse/HELIX-277
Project: Apache Helix
Issue Type: Sub-task
Reporter: Kanak Biscuitwala
Assignee: Kanak Biscuitwala
Rebalancing in FULL_AUTO mode will relentlessly (though mostly greedily) seek a balance in both partitions and states across nodes with minimal movement. However, in this pursuit, we may end up requiring multiple transitions to get a node in the right state for a given partition.
We can fix this by refusing to prefer nodes as they come up, and then revert to the existing strategy once their current state contains a replica.
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