After run openfire 3.8.2 for servlet days, the error log often show this kind of error:
2013.07.03 01:07:13 org.jivesoftware.openfire.nio.ConnectionHandler - Closing connection due to error while processing message: <iq id="339-10131586" to="push-server" from="push-server/cf664b5a" type="error"><error code="501" type="CANCEL"><feature-not-implemented xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/></error></iq>
java.lang.NullPointerException
at org.jivesoftware.openfire.IQRouter.route(IQRouter.java:114)
at org.jivesoftware.openfire.spi.PacketRouterImpl.route(PacketRouterImpl.java:76)
at org.jivesoftware.openfire.net.StanzaHandler.processIQ(StanzaHandler.java:337)
at org.jivesoftware.openfire.net.ClientStanzaHandler.processIQ(ClientStanzaHandler .java:93)
at org.jivesoftware.openfire.net.StanzaHandler.process(StanzaHandler.java:302)
at org.jivesoftware.openfire.net.StanzaHandler.process(StanzaHandler.java:194)
at org.jivesoftware.openfire.nio.ConnectionHandler.messageReceived(ConnectionHandl er.java:181)
at org.apache.mina.common.support.AbstractIoFilterChain$TailFilter.messageReceived (AbstractIoFilterChain.java:570)
at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(Ab stractIoFilterChain.java:299)
at org.apache.mina.common.support.AbstractIoFilterChain.access$1100(AbstractIoFilt erChain.java:53)
at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceive d(AbstractIoFilterChain.java:648)
at org.apache.mina.common.IoFilterAdapter.messageReceived(IoFilterAdapter.java:80)
at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(Ab stractIoFilterChain.java:299)
at org.apache.mina.common.support.AbstractIoFilterChain.access$1100(AbstractIoFilt erChain.java:53)
at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceive d(AbstractIoFilterChain.java:648)
at org.apache.mina.filter.codec.support.SimpleProtocolDecoderOutput.flush(SimplePr otocolDecoderOutput.java:58)
at org.apache.mina.filter.codec.ProtocolCodecFilter.messageReceived(ProtocolCodecF ilter.java:185)
at org.apache.mina.common.support.AbstractIoFilterChain.callNextMessageReceived(Ab stractIoFilterChain.java:299)
at org.apache.mina.common.support.AbstractIoFilterChain.access$1100(AbstractIoFilt erChain.java:53)
at org.apache.mina.common.support.AbstractIoFilterChain$EntryImpl$1.messageReceive d(AbstractIoFilterChain.java:648)
at org.apache.mina.filter.executor.ExecutorFilter.processEvent(ExecutorFilter.java :239)
at org.apache.mina.filter.executor.ExecutorFilter$ProcessEventsRunnable.run(Execut orFilter.java:283)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java: 886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at org.apache.mina.util.NamePreservingRunnable.run(NamePreservingRunnable.java:51)
at java.lang.Thread.run(Thread.java:662)
then I check the XEP-0199: XMPP Ping at http://xmpp.org/extensions/xep-0199.html
and my server info is:
Server Uptime: 11 days, 23 hours, 34 minutes -- started Jun 21, 2013 9:57:13 AM Version: Openfire 3.8.2 Server Directory: /data/openfire Server Name: push-server Java Version: 1.6.0_38-ea Sun Microsystems Inc. -- Java HotSpot(TM) Server VM Appserver: jetty/7.x.y-SNAPSHOT Host Name: push-server OS / Hardware: Linux / i386 Locale / Timezone: en / Hong Kong Time (8 GMT) Java Memory
49.50 MB of 451.56 MB (11.0%) used
I check the IQ: <iq id="339-10131586" to="push-server" from="push-server/cf664b5a" type="error"><error code="501" type="CANCEL"><feature-not-implemented xmlns="urn:ietf:params:xml:ns:xmpp-stanzas"/></error></iq>
To="push-server"
From="push-server/cf664b5a"
this seems like a Server-to-Server Pings ?
So I confuse where is the IQ come from ? or why the server want to ping itself so often?
does any one know the reason of this phenomenon~ thanks a lot...