APAR status
Closed as program error.
Error description
If the operating system halts abruptly, a stale logs/httpd.pid file may be leftover and prevent a subsequent start of IBM HTTP Server Startup will report: httpd (pid 67123) already running
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM HTTP Server on z/OS * **************************************************************** * PROBLEM DESCRIPTION: If the operating system halts * * abruptly, a stale logs/httpd.pid * * file may be leftover and prevent a * * subsequent start of IBM HTTP * * Server * * Startup will report: httpd (pid * * 67123) already running * **************************************************************** * RECOMMENDATION: * **************************************************************** Under normal conditions, a stale pid in the pidfile will not block startup. Portable code in Apache ignores it in the following cases: 1. The file is cleaned up on shutdown 2. The new process sends signal 0 to the listed process, which will fail if the process is not running or is running under a different ID. For #2, on z/OS sending signal 0 does not do a permission check. When the OS is restarted, another process may reuse our old pid and cannot be detected with the portable code.
Problem conclusion
The code was updated for z/OS to check at startup, if there is a process with the value saved in logs/httpd.pid, to make sure it's accessible by the current process AND that it has "httpd" in the command-line. This code uses "ps -fp" to perform both checks. The fix for this APAR is targeted for inclusion in IBM HTTP Server fix packs 8.5.5.21 and 9.0.5.11. For more information, see 'Recommended Updates for WebSphere Application Server': https://www.ibm.com/support/pages/node/715553
Temporary fix
Comments
APAR Information
APAR number
PH41413
Reported component name
WAS IHS ZOS
Reported component ID
5655I3510
Reported release
850
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2021-10-18
Closed date
2021-10-18
Last modified date
2021-10-18
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
WAS IHS ZOS
Fixed component ID
5655I3510
Applicable component levels
[{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.5"}]
Document Information
Modified date:
19 October 2021