PQ69308: AFTER "NO PING RECEIVED" MSG, APPSERVER PROCESS KILLED BUT NOT BE RESTARTED | |||||||||||||||||||||||||||||||||||||
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APAR status Closed as program error. Error description After I implemented code for PQ68450 to ensure that the a hanging application server gets terminated as it should, an additional problem was noted. After the application server was terminated by the admin server in response to the "No Ping Received" message, I was unable to restart the failed application server. I had to kill the nanny and admin server processes, and the application server was restarted automatically, and console stops/starts worked OK after that.Local fix Problem summary **************************************************************** * USERS AFFECTED: WebSphere Application Server users. * **************************************************************** * PROBLEM DESCRIPTION: When user tries to stop an * * application server via admin console, * * wscp, or XMLConfig, sometimes the * * application server process continues * * to run. * **************************************************************** * RECOMMENDATION: * **************************************************************** This is identical to PQ68450. Here is summary from that APAR: When user stops an application server via any of the WebSphere client programs, WebSphere reports that the application is stopped but looking at the process table of the system (e.g., "ps -ef"), the process remains active.Problem conclusion Changed the code so that process is terminated with SIGKILL. Original code did something like: if (kill(app server pid, SIGTERM)!= 0) { . . . kill(app server pid, SIGKILL); Problem was that return code of "0" from kill() does not mean that target process is terminated - only that target pid exists, user has permission to send signal to target process, and signal number is valid.Temporary fix All system management cumulative eFixes dated 20Dec02 or later.Comments
APAR is sysrouted FROM one or more of the following: APAR is sysrouted TO one or more of the following: Modules/Macros
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Document Information |
Product categories: Software > Application Servers >
Distributed Application & Web Servers > WebSphere Application
Server > General
Operating system(s):
Software version: 400
Software edition:
Reference #: PQ69308
IBM Group: Software Group
Modified date: Jan 21, 2003
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