Andrey Zagrebin created FLINK-15989:
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Summary: Rewrap OutOfMemoryError in allocateUnpooledOffHeap with
better message
Key: FLINK-15989
URL: https://issues.apache.org/jira/browse/FLINK-15989
Project: Flink
Issue Type: Improvement
Reporter: Andrey Zagrebin
Fix For: 1.10.1, 1.11.0
Now if Flink allocates direct memory in
MemorySegmentFactory#allocateUnpooledOffHeapMemory and its limit is exceeded
for any reason, e.g. user code over-allocated direct memory,
ByteBuffer#allocateDirect will throw a generic "OutOfMemoryError: Direct buffer
memory". We can catch it and add a message which provides more explanation and
points to an option taskmanager.memory.task.off-heap.size to increase as a
possible solution.
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