OOM error when registering continuous query ------------------------------------------- Key: ISPN-5930 URL: https://issues.jboss.org/browse/ISPN-5930 Project: Infinispan Issue Type: Bug Components: Server Affects Versions: 8.1.0.CR1, 8.0.2.Final Reporter: Vojtech Juranek Assignee: Adrian Nistor When running CQ perf tests in client-server mode, I hit following exception in HR server. The scenario was to store random texts in the cache and CQ which matches all the entries (i.e. query was "%"). Full logs from server are [here|https://jenkins.mw.lab.eng.bos.redhat.com/hudson/view/JDG/view/PERF-...]. Machines perf01-04 are servers, perf05-07 clients and perf08 is RG master. {noformat} 12:36:37,557 ERROR [org.infinispan.server.hotrod.HotRodEncoder] (HotRodServerWorker-9-33) ISPN005023: Exception encoding message CustomRawEvent{version=23, messageId=39574, op=CacheEntryCreatedEventResponse, listenerId=([B@9641785,false), event=([B@5ecfed02,false), isRetried=false}: java.lang.OutOfMemoryError: Direct buffer memory at java.nio.Bits.reserveMemory(Bits.java:658) at java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:123) at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:311) at io.netty.buffer.UnpooledUnsafeDirectByteBuf.allocateDirect(UnpooledUnsafeDirectByteBuf.java:108) at io.netty.buffer.UnpooledUnsafeDirectByteBuf.capacity(UnpooledUnsafeDirectByteBuf.java:157) at io.netty.buffer.AbstractByteBuf.ensureWritable(AbstractByteBuf.java:251) at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:817) at io.netty.buffer.AbstractByteBuf.writeBytes(AbstractByteBuf.java:825) at org.infinispan.server.core.transport.ExtendedByteBuf$.writeRangedBytes(ExtendedByteBuf.scala:67) at org.infinispan.server.hotrod.Encoder2x$.writeEvent(Encoder2x.scala:47) at org.infinispan.server.hotrod.HotRodEncoder.encode(HotRodEncoder.scala:57) at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:107) at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:633) at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:691) at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:681) at io.netty.channel.AbstractChannelHandlerContext.writeAndFlush(AbstractChannelHandlerContext.java:716) at io.netty.channel.DefaultChannelPipeline.writeAndFlush(DefaultChannelPipeline.java:954) at io.netty.channel.AbstractChannel.writeAndFlush(AbstractChannel.java:243) at org.infinispan.server.hotrod.ClientListenerRegistry$BaseClientEventSender.sendEvent(ClientListenerRegistry.scala:219) at org.infinispan.server.hotrod.ClientListenerRegistry$BaseClientEventSender.onCacheEvent(ClientListenerRegistry.scala:186) at sun.reflect.GeneratedMethodAccessor25.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at org.infinispan.notifications.impl.AbstractListenerImpl$ListenerInvocationImpl$1.run(AbstractListenerImpl.java:286) at org.infinispan.util.concurrent.WithinThreadExecutor.execute(WithinThreadExecutor.java:21) at org.infinispan.notifications.impl.AbstractListenerImpl$ListenerInvocationImpl.invoke(AbstractListenerImpl.java:309) at org.infinispan.notifications.cachelistener.CacheNotifierImpl$BaseCacheEntryListenerInvocation.invokeNoChecks(CacheNotifierImpl.java:1213) at org.infinispan.notifications.cachelistener.CacheNotifierImpl.raiseEventForInitialTransfer(CacheNotifierImpl.java:911) at org.infinispan.notifications.cachelistener.CacheNotifierImpl.addListener(CacheNotifierImpl.java:852) at org.infinispan.notifications.cachelistener.CacheNotifierImpl.addListener(CacheNotifierImpl.java:923) at org.infinispan.cache.impl.CacheImpl.addListener(CacheImpl.java:722) at org.infinispan.cache.impl.AbstractDelegatingCache.addListener(AbstractDelegatingCache.java:347) at org.infinispan.server.hotrod.ClientListenerRegistry.addClientListener(ClientListenerRegistry.scala:100) at org.infinispan.server.hotrod.Decoder2x$.customReadKey(Decoder2x.scala:384) at org.infinispan.server.hotrod.HotRodDecoder.customDecodeKey(HotRodDecoder.scala:194) at org.infinispan.server.hotrod.HotRodDecoder.org$infinispan$server$hotrod$HotRodDecoder$$decodeKey(HotRodDecoder.scala:104) at org.infinispan.server.hotrod.HotRodDecoder$$anonfun$decode$1.apply$mcV$sp(HotRodDecoder.scala:48) at org.infinispan.server.hotrod.HotRodDecoder.wrapSecurity(HotRodDecoder.scala:206) at org.infinispan.server.hotrod.HotRodDecoder.decode(HotRodDecoder.scala:45) at io.netty.handler.codec.ReplayingDecoder.callDecode(ReplayingDecoder.java:370) at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:168) at org.infinispan.server.hotrod.HotRodDecoder.org$infinispan$server$core$transport$StatsChannelHandler$$super$channelRead(HotRodDecoder.scala:31) at org.infinispan.server.core.transport.StatsChannelHandler$class.channelRead(StatsChannelHandler.scala:32) at org.infinispan.server.hotrod.HotRodDecoder.channelRead(HotRodDecoder.scala:31) at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:308) at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:294) at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:846) at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:130) at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:511) at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:468) at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:382) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:354) at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116) at io.netty.util.concurrent.DefaultThreadFactory$DefaultRunnableDecorator.run(DefaultThreadFactory.java:137) at java.lang.Thread.run(Thread.java:745) {noformat}