Using JCL procedures to start IBM HTTP Server on z/OS
You can prepare JCL procedures to start and stop IBM® HTTP Server from the MVS™ system console.
By using a JCL cataloged procedure to issue the apachectl start and stop commands, you can start and stop an IBM HTTP Server instance from the MVS system console. Other apachectl commands can be issued from the MVS system console using the same procedure.
Copy the following sample JCL procedure from the HAP.SHAPJCL3(HAPCPROC) member
to your system procedure library and substitute the high-level qualifier on your system installation
for the HAP value:
//*---------------------------------------------------------
//IHSAPACH PROC ACTION='start',
// DIR='/path/to/IHS/runtime/directory',
// CONF='conf/httpd.conf'
//*---------------------------------------------------------
//IHS EXEC PGM=BPXBATCH,REGION=0K,TIME=NOLIMIT
// PARM='SH &DIR/bin/apachectl -k &ACTION -f &CONF -DNO_DETACH',
// MEMLIMIT=2048M
//STDOUT DD PATH='&DIR/logs/proc.output',
// PATHOPTS=(OWRONLY,OCREAT,OTRUNC),
// PATHMODE=(SIRUSR,SIWUSR,SIRGRP,SIWGRP)
//STDERR DD PATH='&DIR/logs/proc.errors',
// PATHOPTS=(OWRONLY,OCREAT,OTRUNC),
// PATHMODE=(SIRUSR,SIWUSR,SIRGRP,SIWGRP)
//* SYSMDUMP DD ...
// PEND
//* ==========================================================/
//PROPRIETARY-STATEMENT:/
//Licensed Material - Property of IBM/
// /
//5724-I63, 5724-H88, 5655-N01, 5733-W61, 5655-M23/
//(C) Copyright IBM Corp. 2006/
//All RIghts Reserved/
//US Government Users Restricted Rights - Use, duplication or/
//disclosure restricted by GSA ADP Schedule Contract with IBM Corp./
//===========================================================*//PARMIN DD
*,SYMBOLS=JCLONLY JCL card as illustrated in the following
example:/*------------------------------------------------------
//WEBFTNEI JOB (KOMA-Y98),'Apache NZX2 ',MSGCLASS=T,
// TIME=NOLIMIT
// EXPORT SYMLIST=*
//*-------------------------------------
// SET ACTION='start'
// SET DIR='/home/ihsa/install/webft'
// SET CONF='../../httpd/webftnei.conf'
//*-----------------------------------------------------
//IHS EXEC PGM=BPXBATCH,PARMDD=PARMIN,
// MEMLIMIT=2048M
//PARMIN DD *,SYMBOLS=JCLONLY
PGM &DIR/bin/apachectl
-k &ACTION
-f &CONF
-DNO_DETACH
//*-------------------------------------------------------
//STDOUT DD SYSOUT=T
//*
//STDERR DD SYSOUT=T
//*
//
//STDOUT DD PATH='&DIR/logs/proc.output',
// PATHOPTS=(OWRONLY,OCREAT,OTRUNC),
// PATHMODE=(SIRUSR,SIWUSR,SIRGRP,SIWGRP)
//*
//STDERR DD PATH='&DIR/logs/proc.errors',
// PATHOPTS=(OWRONLY,OCREAT,OTRUNC),
// PATHMODE=(SIRUSR,SIWUSR,SIRGRP,SIWGRP)
//
/*---------------------------------------------------------- A description of the apachectl command used in the sample JCL can be found at the Apache HTTP Server Control Interface Web site.
The default jobname for the IBM HTTP Server instance will be the same as the member name of the cataloged
procedure. The Web server is a multi-process server, and each additional process that is created
will have a generated jobname that is based on the original jobname. If the original jobname is 8
characters long, then all the additional processes will have the same jobname. If the original
jobname is less then 8 characters then the additional processes will have jobnames that are composed
of the original jobname with an added digit as a suffix. If the Web server is started from the UNIX environment using
the bin/apachectl command, then the default jobname will be the userid that the
command is running under. As with the jobname, if the userid is 8 characters long, then all the
additional processes will have the same jobname. If the userid is less then 8 characters then the
processes will have jobnames that are composed of the userid with an added digit as a suffix.
RDEFINE STARTED WEBSRV1.* STDATA(USER(WWWSERV) GROUP(WWWGROUP) TRACE(YES))
SETROPTS RACLIST(STARTED) GENERIC(STARTED) REFRESH- To start the server from the MVS system console, enter:
S WEBSRV1Note: The Web server jobname can be changed by adding jobname to the start command, for example:S WEBSRV1,JOBNAME=HTTPDWS1Best Practice 1: Use an eight character jobname. Using an eight character jobname ensures that all the processes created for this instance of the Web server will have the same jobname.To stop the server, enter:P WEBSRV1Note: When using the System Display and Search Facility (SDSF), you must use the System Command Extension (command entry) screen to enter the command to stop the server.- At the command prompt, type a forward slash (/) and then hit enter to access the System Command Extension window.
- From the System Command Extension window, enter the S WEBSRV1,ACTION='stop' command. Make sure that stop is in lowercase.
- To issue other apachectl commands,
enter:
S WEBSRV1,ACTION='<command>'
- To restart the server,
enter:
You can restart the server from the z/OS® console.S WEBSRV1,ACTION=restart - To gracefully restart the server,
enter:
You can gracefully restart the server from the z/OS console.S WEBSRV1,ACTION=graceful
The output files for the start and stop commands are located in the files specified on the STDOUT and STDERR DD JCL statements in the procedure
zos_cmds module: If zos_cmds module is active,
then you can use the z/OS STOP and MODIFY console commands. httpd.conf file, the following line must be added to
activate the zos_cmds
module:LoadModule zos_cmds_module modules/mod_zos_cmds.so BPXM023I (WASTST1) IHS is active. Use jobname HTTPDWS1 for MVS commands.
WASTST1 is the userid that the Web server is running under. An
entry will be written to the error log that identifies the jobname as well. Notice that the
mod_zos_cmds daemon jobname is HTTPDWS1. When a MODIFY command is
entered, it gets targeted to every job with the specified jobname. Only one of the Web server
processes will accept the command. The system will issue the following message for each of the other
jobs of the same jobname. The message will only be prefixed by message ID BPXM023I
and a userid if the userid under which the HTTP server is running cannot access the BPX.CONSOLE
FACILITY class.IEE342I MODIFY REJECTED-TASK BUSY- To stop the server using the stop command:
P HTTPDWS1 - To restart the server using the modify command,
enter:
F HTTPDWS1,appl='restart' - To gracefully restart the server using the modify command,
enter:
F HTTPDWS1,appl='graceful'
zos cmds module active, it will issue the
following message to the operator console.
BPXM023I (WASTST1) IHS is stopping