Patrick Hunt commented on ZOOKEEPER-167:

In the ops guide we should have something detailing how to recover from datadir 
corruption. In 3.0 we added CRCs to the snapshot and transaction log files. If 
we find a fault the user may need to manually recover. Should have 
documentation re:

1) corrupted log file - server will attempt to recover automatically by 
dropping back to previous snap/logs.
2) corrupted snapshot - user will need to manually intervene, recover datadir 
from redundant server.

should include steps on how to do this. 

> Content needed: "Troubleshooting"
> ---------------------------------
>                 Key: ZOOKEEPER-167
>                 URL: https://issues.apache.org/jira/browse/ZOOKEEPER-167
>             Project: Zookeeper
>          Issue Type: Sub-task
>            Reporter: Robbie Scott
>   Original Estimate: 8h
>  Remaining Estimate: 8h
> We need the content / information / knowledge for the "Troubleshooting" 
> subsection of the ZooKeeper Administrator's Guide. This is information about 
> what to do when an existing deployment of ZooKeeper has problems. 

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