Arvind Prabhakar created FLUME-1320:
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             Summary: Add safeguard for checkpoint corruption detection
                 Key: FLUME-1320
                 URL: https://issues.apache.org/jira/browse/FLUME-1320
             Project: Flume
          Issue Type: Bug
            Reporter: Arvind Prabhakar
            Assignee: Arvind Prabhakar


The checkpoint process can potentially be interrupted by a catastrophic failure 
such as complete power loss leaving the checkpoint corrupted. When the channel 
is restarted, the (corrupted) checkpoint will get loaded and there could be 
dataloss as a result of this.

It is therefore necessary to have a safeguard to detect if a checkpoint 
succeeded or failed. 

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