PK40741: THE SERVER STARTUP MAY FAIL WITH ABEND DC3 RC 000C0008 DUE TO JAVA.NIO.CHANNELS.UNRESOLVEDADDRESSEXCEPTION IN THE CONTROLLER | |||||||||||||||||||||||||||||||||||||||
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![]() APAR status Closed as program error. Error description These condition have to be present for this problem to occur: 1) DCS_UNICAST_ADDRESS is set to '*' as oppose to specific ip address or name (see local fix description to find where this property is set). 2) localhost is not defined on the system 3) the server was started within a very short amount of time after it was brought down The problem is that we are trying to start a connection for a port that is still in use. The error path leads down to use localhost. If this problem occurs, the controller will abend with ABEND=SDC3 U0000 REASON=000C0008 AND the log will show the following exceptions: BBOO0220E: CHFW0029E: Error initializing chain DCS because of exception com.ibm.wsspi.channel.framework.exception .ChannelException: java.nio.channels.UnresolvedAddressException BBOO0220E: CHFW0029E: Error initializing chain DCS-Secure because of exception com.ibm.wsspi.channel.framework.exception.C hannelException: java.nio.channels.UnresolvedAddressException BBOO0220E: WSVR0009E: Error occurred during startup com.ibm.ws.exception.RuntimeError: com.ibm.ws.exception.RuntimeError: Unable to start the CoordinatorComponentImpl at com.ibm.ws.runtime.WsServerImpl.bootServerContainer(WsServe rImpl.java:194) .... Caused by: com.ibm.wsspi.channel.framework.exception.ChainGroupException: + Error starting chain DCS in group DCSChannel, exception=com.ibm.wsspi.channel.framework.exception.ChannelExcep tion: java.nio.channels.UnresolvedAddressException + Error starting chain DCS-Secure in group DCSChannel, exception=com.ibm.wsspi.channel.framework.exception.ChannelExcep tion: java.nio.channels.UnresolvedAddressException at com.ibm.ws.channel.framework.impl.ChannelFrameworkImpl.star tChainGoup(ChannelFrameworkImpl.java:3652)Local fix 1) define localhost in /etc/hosts: localhost 127.0.0.1 or localhost 1.2.3.4 where 1.2.3.4 is the system ip address OR 2) Change DCS_UNICAST_ADDRESS from '*' to specific ip address: For an application server, click Servers > Application Servers > 'server_name', and then, under Additional Properties, click > Ports > DCS_UNICAST_ADDRESS For a node agent, click System administration > Node agents > 'node_name', and then, under Additional Properties, click > Ports > DCS_UNICAST_ADDRESS For a deployment agent, click System administration > Deployment manager, and then, under Additional Properties, click > Ports > DCS_UNICAST_ADDRESS OR 3) Wait longer before you restart the server.Problem summary **************************************************************** * USERS AFFECTED: All users of WebSphere Application Server * * V6.0.1 for z/OS * **************************************************************** * PROBLEM DESCRIPTION: Starting WAS may see it fail due to a * * java.nio.channels.UnresolvedAddress- * * Exception. This can happen if the name * * in the endpoint is unresolvable or if * * the name is *, then localhost is used. * **************************************************************** * RECOMMENDATION: * **************************************************************** When starting the listening chains, if there is an error during the bind request additional checks are made. This includes making an outbound request to the name and port defined in the EndPoint for the TCP chain. If the name is *, then localhost is used. This is where the unresolved address exception is seen.Problem conclusion Protective code was added to ensure that the test address is resolvable before the outbound connect attempt. If it is not, then the chain start attempts stops and tries again in a few seconds. APAR PK40741 is currently targeted for inclusion in Service Level (Fix Pack) 6.0.2.21 of WebSphere Application Server V6.0.1 for z/OS.Temporary fix Comments
APAR is sysrouted FROM one or more of the following: APAR is sysrouted TO one or more of the following: PK40743 Modules/Macros Publications Referenced
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Document Information |
Current web document: swg1PK40741.html
Product categories: Software > Application Servers >
Distributed Application & Web Servers > WebSphere Application
Server for z/OS
Operating system(s):
Software version: 601
Software edition:
Reference #: PK40741
IBM Group: Software Group
Modified date: Aug 3, 2007
(C) Copyright IBM Corporation 2000, 2009. All Rights Reserved.