Duo Zhang created HBASE-22963:
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Summary: Netty ByteBuf leak in rpc client implementation
Key: HBASE-22963
URL: https://issues.apache.org/jira/browse/HBASE-22963
Project: HBase
Issue Type: Bug
Reporter: Duo Zhang
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2019-08-31 21:48:27,067 ERROR [RS-EventLoopGroup-6-3]
util.ResourceLeakDetector(317): LEAK: ByteBuf.release() was not called before
it's garbage-collected. See http://netty.io/wiki/reference-counted-objects.html
for more information.
Recent access records:
Created at:
org.apache.hbase.thirdparty.io.netty.buffer.UnpooledByteBufAllocator.newDirectBuffer(UnpooledByteBufAllocator.java:96)
org.apache.hbase.thirdparty.io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:187)
org.apache.hbase.thirdparty.io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:178)
org.apache.hbase.thirdparty.io.netty.buffer.Unpooled.directBuffer(Unpooled.java:125)
org.apache.hadoop.hbase.ipc.NettyRpcConnection.<init>(NettyRpcConnection.java:96)
org.apache.hadoop.hbase.ipc.NettyRpcClient.createConnection(NettyRpcClient.java:74)
org.apache.hadoop.hbase.ipc.NettyRpcClient.createConnection(NettyRpcClient.java:40)
org.apache.hadoop.hbase.ipc.AbstractRpcClient.getConnection(AbstractRpcClient.java:364)
org.apache.hadoop.hbase.ipc.AbstractRpcClient.callMethod(AbstractRpcClient.java:433)
org.apache.hadoop.hbase.ipc.AbstractRpcClient.access$300(AbstractRpcClient.java:97)
org.apache.hadoop.hbase.ipc.AbstractRpcClient$RpcChannelImplementation.callMethod(AbstractRpcClient.java:605)
org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos$ClientService$Stub.scan(ClientProtos.java:42345)
org.apache.hadoop.hbase.client.AsyncClientScanner.callOpenScanner(AsyncClientScanner.java:152)
org.apache.hadoop.hbase.client.AsyncSingleRequestRpcRetryingCaller.call(AsyncSingleRequestRpcRetryingCaller.java:82)
org.apache.hadoop.hbase.client.AsyncSingleRequestRpcRetryingCaller.lambda$doCall$7(AsyncSingleRequestRpcRetryingCaller.java:115)
org.apache.hadoop.hbase.util.FutureUtils.lambda$addListener$0(FutureUtils.java:68)
java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760)
java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736)
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962)
org.apache.hadoop.hbase.client.AsyncRegionLocator.lambda$getRegionLocation$3(AsyncRegionLocator.java:124)
org.apache.hadoop.hbase.util.FutureUtils.lambda$addListener$0(FutureUtils.java:68)
java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760)
java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736)
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962)
org.apache.hadoop.hbase.client.ConnectionUtils.lambda$getOrFetch$6(ConnectionUtils.java:573)
org.apache.hadoop.hbase.util.FutureUtils.lambda$addListener$0(FutureUtils.java:68)
java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760)
java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736)
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962)
org.apache.hadoop.hbase.client.ZKAsyncRegistry.tryComplete(ZKAsyncRegistry.java:123)
org.apache.hadoop.hbase.client.ZKAsyncRegistry.lambda$getMetaRegionLocation$1(ZKAsyncRegistry.java:165)
org.apache.hadoop.hbase.util.FutureUtils.lambda$addListener$0(FutureUtils.java:68)
java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760)
java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736)
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962)
org.apache.hadoop.hbase.client.ZKAsyncRegistry.lambda$getAndConvert$0(ZKAsyncRegistry.java:81)
org.apache.hadoop.hbase.util.FutureUtils.lambda$addListener$0(FutureUtils.java:68)
java.util.concurrent.CompletableFuture.uniWhenComplete(CompletableFuture.java:760)
java.util.concurrent.CompletableFuture$UniWhenComplete.tryFire(CompletableFuture.java:736)
java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:474)
java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:1962)
org.apache.hadoop.hbase.zookeeper.ReadOnlyZKClient$ZKTask$1.exec(ReadOnlyZKClient.java:174)
org.apache.hadoop.hbase.zookeeper.ReadOnlyZKClient.run(ReadOnlyZKClient.java:342)
java.lang.Thread.run(Thread.java:748)
{noformat}
https://builds.apache.org/job/HBase-Flaky-Tests/job/master/4148/testReport/junit/org.apache.hadoop.hbase.client/TestConnection/testConnectionCloseAllowsInterrupt/
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