Details
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Bug
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Status: Resolved
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Major
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Resolution: Fixed
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2.7.5
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None
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None
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Reviewed
Description
When running some unit tests for storm we found that we would occasionally get out of memory errors on the HDFS integration tests.
When I got a heap dump I found that the ShutdownHookManager was full of BlockPoolSlice$1 instances. Which hold a reference to the BlockPoolSlice which then in turn holds a reference to the DataNode etc....
It looks like when shutdown is called on the BlockPoolSlice there is no way to remove the shut down hook in because no reference to it is saved.
