Jungtaek Lim created STORM-2605:
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Summary: Versioning State
Key: STORM-2605
URL: https://issues.apache.org/jira/browse/STORM-2605
Project: Apache Storm
Issue Type: Improvement
Components: storm-client
Reporter: Jungtaek Lim
>From upcoming STORM-2369 we're just breaking compatibility with State
>structure.
In this case it would be better to provide two features:
1. Fail fast if version mismatch occurs between stored state and current KV
state implementation, and provide proper error message to let users know the
reason of failure.
2. Migration tool to migrate old state to the new state
Since STORM-2369 is the first time to break compatibility so I strictly don't
think we should resolve this issue along with STORM-2369, but still better to
have this feature in future.
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