Anilkumar Gingade created GEODE-3844:
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Summary: OffHeap region close could be more efficient in its
memory usage.
Key: GEODE-3844
URL: https://issues.apache.org/jira/browse/GEODE-3844
Project: Geode
Issue Type: Bug
Components: offheap
Reporter: Anilkumar Gingade
Close on OffHeap region tries to copy OffHeap RegionEnties into array, which
could take up lot of memory based on the region size.
This could be optimized by working on the region map itself or by working on
the entries per hashmap segment one at a time.
java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Arrays.java:3181)
at java.util.ArrayList.grow(ArrayList.java:261)
at java.util.ArrayList.ensureExplicitCapacity(ArrayList.java:235)
at java.util.ArrayList.ensureCapacityInternal(ArrayList.java:227)
at java.util.ArrayList.add(ArrayList.java:458)
at
org.apache.geode.internal.util.concurrent.CustomEntryConcurrentHashMap$Segment.clear(CustomEntryConcurrentHashMap.java:1037)
at
org.apache.geode.internal.util.concurrent.CustomEntryConcurrentHashMap.clear(CustomEntryConcurrentHashMap.java:1795)
at
org.apache.geode.internal.cache.AbstractRegionMap._mapClear(AbstractRegionMap.java:329)
at
org.apache.geode.internal.cache.AbstractRegionMap.clear(AbstractRegionMap.java:371)
at
org.apache.geode.internal.cache.AbstractLRURegionMap.clear(AbstractLRURegionMap.java:685)
at
org.apache.geode.internal.cache.AbstractRegionMap.close(AbstractRegionMap.java:337)
at
org.apache.geode.internal.cache.LocalRegion.closeEntries(LocalRegion.java:2703)
at
org.apache.geode.internal.cache.LocalRegion.recursiveDestroyRegion(LocalRegion.java:2664)
at
org.apache.geode.internal.cache.LocalRegion.basicDestroyRegion(LocalRegion.java:6184)
at
org.apache.geode.internal.cache.DistributedRegion.basicDestroyRegion(DistributedRegion.java:1707)
at org.apache.geode.internal.cache.LocalRegion.close(LocalRegion.java:2206)
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