Hi all,
In a tomcat cluster deployed in production, I'm seeing the following in
catalina.out:
2006-09-21 14:31:29,778 WARN FastAsyncSocketSender - Unable to
asynchronously send session with
id=[A1C6AD293C423C51568CCF24EFBD6064-1158863489776] - message will be
ignored.
java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at
java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:507)
at java.net.Socket.connect(Socket.java:457)
at java.net.Socket.<init>(Socket.java:365)
at java.net.Socket.<init>(Socket.java:207)
at
org.apache.catalina.cluster.tcp.DataSender.createSocket(DataSender.java:704)
at
org.apache.catalina.cluster.tcp.DataSender.openSocket(DataSender.java:679)
at
org.apache.catalina.cluster.tcp.DataSender.pushMessage(DataSender.java:803)
at
org.apache.catalina.cluster.tcp.FastAsyncSocketSender$FastQueueThread.pushQueuedMessages(FastAsyncSocketSender.java:476)
at
org.apache.catalina.cluster.tcp.FastAsyncSocketSender$FastQueueThread.run(FastAsyncSocketSender.java:442)
I'm getting these at quite an alarming pace at the moment. AFAIK, service
is not affected since we ourselves are albe to use the application
satisfactorily, and have not had reports of wide-spread failures.
This is on Redhat AS3 linux machines with tomcat 5.5.17 with java
1.5.0_06. Following is my cluster configuration (abbreviated):
<Cluster className="org.apache.catalina.cluster.tcp.SimpleTcpCluster"
managerClassName="org.apache.catalina.cluster.session.DeltaManager"
expireSessionsOnShutdown="false"
useDirtyFlag="true"
notifyListenersOnReplication="true">
<Membership
className="org.apache.catalina.cluster.mcast.McastService"
mcastAddr="228.0.0.4"
mcastPort="45564"
mcastFrequency="1000"
mcastDropTime="30000"/>
<Receiver
className="org.apache.catalina.cluster.tcp.ReplicationListener"
tcpListenAddress="auto"
tcpListenPort="4001"
tcpSelectorTimeout="100"
tcpThreadCount="6"
compress="false"/>
<Sender
className="org.apache.catalina.cluster.tcp.ReplicationTransmitter"
replicationMode="fastasyncqueue"
compress="false"
doProcessingStats="true"
queueTimeWait="true"
waitForAck="false"
autoConnect="false"
keepAliveTimeout="360000"
keepAliveMaxRequestCount="-1"/>
[..cut for brevity..]
What should I be looking at changing? Any ideas?
Thanks in advance,
--
Haroon Rafique
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