keith-turner commented on issue #2125:
URL: https://github.com/apache/accumulo/issues/2125#issuecomment-852247696
One possible solution to this problem is when a possible dead compaction is
detected to do the following.
* Remember the possible dead compaction and its first seen and last seen
time in a map in the DeadCompactionDetector.
* When last seen - first seen > 10 minutes, then actually mark the
compactions as dead.
So don't mark a compaction as dead the first time a problems is seen, only
do so after multiple times of seeing a problem. Also the set of possible dead
compactions should have anything cleared out that was seen as running or no
longer exists.
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