[jira] [Created] (ASTERIXDB-1985) Add a rebalance callback for customizing the pre/post action for rebalance

[Yingyi Bu (JIRA)]

Yingyi Bu created ASTERIXDB-1985:
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             Summary: Add a rebalance callback for customizing the pre/post 
action for rebalance
                 Key: ASTERIXDB-1985
                 URL: https://issues.apache.org/jira/browse/ASTERIXDB-1985
             Project: Apache AsterixDB
          Issue Type: Improvement
            Reporter: Yingyi Bu
            Assignee: Yingyi Bu


Add a rebalance callback for customizing the pre/post action for populating 
data from the source to the target.

For example, populating LSM metadata from the source to the target is sometimes 
necessary.



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