[GitHub] ctubbsii commented on issue #802: Failing to recover WAL leases

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ctubbsii commented on issue #802: Failing to recover WAL leases
URL: https://github.com/apache/accumulo/issues/802#issuecomment-445081428
 
 
   I've seen this copy-into-place to fix stuck Hadoop before. IIRC, it happened before 2.6 also. This seems like a Hadoop bug. Maybe we can add complexity to Hadoop to fix it, but I'd hope that the fix can be pushed upstream into Hadoop, so we don't set a precedent of Accumulo taking responsibility for bugs in libraries Accumulo uses.
   
   I'm sympathetic to the need to have this fixed in production, and don't inherently have a problem with Accumulo doing more stuff to be fault-tolerant... I'm just worried slightly that the increasing complexity in Accumulo is not a scalable solution this category of problem. Without seeing the code needed to fix this, it's hard to say whether it would be complex or simple in this case.
   
   Regardless, I definitely think this should be brought to the attention of Hadoop (or whatever Hadoop vendor you're using).

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