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From GitBox <...@apache.org>
Subject [GitHub] adamjshook commented on issue #535: WAL recovery enhancements and tooling
Date Wed, 20 Jun 2018 17:39:41 GMT
adamjshook commented on issue #535: WAL recovery enhancements and tooling
URL: https://github.com/apache/accumulo/issues/535#issuecomment-398835802
 
 
   I'm happy to do the leg work on this, but could someone help clue me in on how/why the
WAL would be considered in an illegal state, and what could be done to remove/fix the illegal
state?  The ones I am specifically experiencing are the `Saw consecutive COMPACTION_FINISH
events` and `COMPACTION_FINISH (without preceding COMPACTION_START) is not followed by a successful
minor compaction`.  Are exceptions the way to go with these or would logging be a better option
since replaying the mutations is important? (I'm unfamiliar with the details of WAL recovery
but am going over the code now).

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