Bryan Beaudreault created HBASE-27953:
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Summary: Leak in ServerCall.setResponse
Key: HBASE-27953
URL: https://issues.apache.org/jira/browse/HBASE-27953
Project: HBase
Issue Type: Bug
Reporter: Bryan Beaudreault
I'm stress testing the RegionServer for TLS and noticing the following leak:
{code:java}
ERROR org.apache.hbase.thirdparty.io.netty.util.ResourceLeakDetector: LEAK:
RefCnt.release() was not called before it's garbage-collected. See
https://netty.io/wiki/reference-counted-objects.html for more information.
Recent access records:
Created at:
org.apache.hadoop.hbase.nio.RefCnt.<init>(RefCnt.java:59)
org.apache.hadoop.hbase.nio.SingleByteBuff.<init>(SingleByteBuff.java:55)
org.apache.hadoop.hbase.io.ByteBuffAllocator.allocateOneBuffer(ByteBuffAllocator.java:280)
org.apache.hadoop.hbase.io.ByteBufferListOutputStream.allocateNewBuffer(ByteBufferListOutputStream.java:61)
org.apache.hadoop.hbase.io.ByteBufferListOutputStream.checkSizeAndGrow(ByteBufferListOutputStream.java:90)
org.apache.hadoop.hbase.io.ByteBufferOutputStream.writeInt(ByteBufferOutputStream.java:154)
org.apache.hadoop.hbase.util.ByteBufferUtils.putInt(ByteBufferUtils.java:429)
org.apache.hadoop.hbase.codec.KeyValueCodec$KeyValueEncoder.write(KeyValueCodec.java:61)
org.apache.hadoop.hbase.ipc.CellBlockBuilder.encodeCellsTo(CellBlockBuilder.java:187)
org.apache.hadoop.hbase.ipc.CellBlockBuilder.buildCellBlockStream(CellBlockBuilder.java:223)
org.apache.hadoop.hbase.ipc.ServerCall.setResponse(ServerCall.java:256)
org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:160)
org.apache.hadoop.hbase.ipc.CallRunnerWithContext.run(CallRunnerWithContext.java:74)
org.apache.hadoop.hbase.ipc.RpcHandler.run(RpcHandler.java:102)
org.apache.hadoop.hbase.ipc.RpcHandler.run(RpcHandler.java:82) {code}
One thing to note is that due to my stress test Netty is throwing
OutOfDirectMemoryError, which extends OutOfMemoryError. I see we have handling
for that in CallRunner, not sure if it's related.
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