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http://issues.apache.org/bugzilla/show_bug.cgi?id=34389 Summary: Tomcat 5.5.9 Cluster fix pack Product: Tomcat 5 Version: 5.5.9 Platform: Other OS/Version: other Status: NEW Severity: blocker Priority: P2 Component: Catalina:Cluster AssignedTo: tomcat-dev@jakarta.apache.org ReportedBy: [EMAIL PROTECTED] Readme - Clustering Jakarta Tomcat 5.5.9 fix Date: 10.04.2005 Author: Peter Rossbach After some load test the current clustering shows some bugs. => - At some case the complete cluster hang ( Linux Suse 9.1, Windows XP) - Memory consume with fastasyncqueue is to high under heavy load. Probleme with waitAck and sync DataSender#pushMessage - No request processing sometimes. Trouble with SessionManager background thread and wrong autoConnect sync block Here my fixes DataSender * No sync pushMessage with async background thread * KeepAliveMaxRequestCount set to -1 ( disable), only timebased keep alive * Socket Open Counter afer successfull open! * More Trace messages * better wait ack handling FastAsyncSocketSender * move counter queuedNrOfBytes to background thread * snyc only the counter and not the message queueing ( very important perf gap) * More Trace messages AsyncSocketSender * move counter queuedNrOfBytes to background thread * snyc only the counter and not the message queueing ( very important perf gap) * More Trace messages Jdk13ReplicationListener * Add Socket Listener -- Rename at > 5.5.9 to SocketReplicationListener * More Trace messages to better understanding ReplicationTransmitter * set autoConnect to false ( Very bad thing second thread can close a socket that other thread can use!) * sync autoConnect sender check ReplicationListener * More Trace messages to better understanding PooledSocket * sendMessage used autoConnect ( not heavy tested) ===========================================================================S With 5.5.9 are following cluster sender config possible: ### pooled ### <Sender className="org.apache.catalina.cluster.tcp.ReplicationTransmitter" replicationMode="pooled" ackTimeout="@node.ackTimeout@"/> ### fastasyncqueue ### // When you set compress="false" you mus also do that at receiver! // Make test that maxQueueLength is big! <Sender className="org.apache.catalina.cluster.tcp.ReplicationTransmitter" replicationMode="fastasyncqueue" compress="false" doProcessingStats="true" queueTimeWait="true" maxQueueLength="1000" queueDoStats="true" queueCheckLock="true" ackTimeout="15000" waitForAck="true" autoConnect="false" keepAliveTimeout="@node.ackTimeout@" keepAliveMaxRequestCount="-1"/> ### asynchronous ### // When you set compress="false" you mus also do that at receiver! <Sender className="org.apache.catalina.cluster.tcp.ReplicationTransmitter" replicationMode="asynchronous" compress="false" ackTimeout="15000" waitForAck="true" autoConnect="false" keepAliveTimeout="@node.ackTimeout@" keepAliveMaxRequestCount="-1"/> ### synchronous ### <Sender className="org.apache.catalina.cluster.tcp.ReplicationTransmitter" replicationMode="synchronous" compress="false" ackTimeout="15000" waitForAck="true" keepAliveTimeout="@node.ackTimeout@" keepAliveMaxRequestCount="-1"/> With this fix I implement a simple Socket Receiver that not used NIO! Jdk13ReplicationListener At > 5.5.9 I change the name to SocketReplicationListener <Receiver className="org.apache.catalina.cluster.tcp.Jdk13ReplicationListener" tcpListenAddress="@node.clustertcp.address@" tcpListenPort="@node.clustertcp.port@" /> ========================================================== Compile from source, * get Tomcat 5.5.9 binary release * get this fix pack jakarta-tomcat-5.5.9-cluster-fix-src-<date>.tar.gz and extract. * edit build.properties set catalina.home to you 5.5.9 release catalina.home=d:/server/jakarta-tomcat-5.5.9 * than compile and install ant compile install * Install manually Copy build/classes to your tomcat release server/classes ========================================================== Sorry for the release trouble, :-( Peter s. attachment to this bug report -- Configure bugmail: http://issues.apache.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
