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From GitBox <...@apache.org>
Subject [GitHub] adamjshook commented on issue #535: WAL recovery enhancements and tooling
Date Thu, 21 Jun 2018 16:37:14 GMT
adamjshook commented on issue #535: WAL recovery enhancements and tooling
URL: https://github.com/apache/accumulo/issues/535#issuecomment-399167126
 
 
   Working through fixing the tablets on our cluster -- Regarding recovery, each tablet recovers
the relevant mutations from the WAL, yes?  Once tablet recovery has settled down, swapping
out a WAL file would only affect the tablets with these errors.  So if there are no mutations
for the given extent, then it'd be safe to swap it out with an empty and then there wouldn't
be any data loss (no mutations for the busted tablet and all the other tablets have already
recovered).
   
   As an aside, it'd be good to add the broken WAL in the error message.

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