[GitHub] adamjshook edited a comment on issue #535: WAL recovery enhancements and tooling

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adamjshook edited a comment 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 (maybe @keith-turner?) 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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