[infinispan-issues] [JBoss JIRA] (ISPN-2005) Memcached server throwing UnknownOperationException with many clients

Memcached server throwing UnknownOperationException with many clients --------------------------------------------------------------------- Key: ISPN-2005 URL: https://issues.jboss.org/browse/ISPN-2005 Project: Infinispan Issue Type: Bug Components: Cache Server Affects Versions: 5.1.3.FINAL Reporter: Galder Zamarreño Assignee: Galder Zamarreño Fix For: 5.1.4.FINAL With native memcached out of the box, I can execute such a test without any problems: 1000 clients (threads), 400 operations per thread, 34% writes However, running Infinispan Memcached distribution with 1000 worker threads results in exceptions such as: {code}2012-04-23 16:46:59,893 ERROR (MemcachedServerWorker-1-957) [org.infinispan.server.memcached.MemcachedDecoder] ISPN005003: Exception reported org.infinispan.server.core.UnknownOperationException: Unknown operation: at org.infinispan.server.memcached.RequestResolver$.toRequest(MemcachedDecoder.scala:659) at org.infinispan.server.memcached.MemcachedDecoder.readHeader(MemcachedDecoder.scala:73) at org.infinispan.server.core.AbstractProtocolDecoder.decodeHeader(AbstractProtocolDecoder.scala:92) at org.infinispan.server.core.AbstractProtocolDecoder.decode(AbstractProtocolDecoder.scala:69) at org.infinispan.server.core.AbstractProtocolDecoder.decode(AbstractProtocolDecoder.scala:45) at org.infinispan.server.core.transport.CustomReplayingDecoder.callDecode(CustomReplayingDecoder.java:250) at org.infinispan.server.core.transport.CustomReplayingDecoder.messageReceived(CustomReplayingDecoder.java:223) at org.infinispan.server.core.AbstractProtocolDecoder.messageReceived(AbstractProtocolDecoder.scala:360) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:274) at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:261) at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:351) at org.jboss.netty.channel.socket.nio.NioWorker.processSelectedKeys(NioWorker.java:282) at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:202) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) at java.lang.Thread.run(Thread.java:680){code} Client shows: {code}2012-04-23 16:46:28.742 INFO net.spy.memcached.MemcachedConnection: Reconnecting due to exception on {QA sa=/127.0.0.1:11211, #Rops=0, #Wops=0, #iq=0, topRop=null, topWop=null, toWrite=0, interested=0} java.net.SocketException: Connection reset by peer at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567) at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:369) at net.spy.memcached.MemcachedConnection.handleIO(MemcachedConnection.java:242) at net.spy.memcached.MemcachedConnection.run(MemcachedConnection.java:833){code}