In Fusion Middleware 12c the Oracle HTTP Server is now configured as SystemComponents within a Weblogic Domain. This can be embedded in a FMW Domain, like SOA, OSB, or WebCenter.  Or it can be in a stand alone domain.

When configured, there are scripts to start and stop the system components in the bin folder of the domain: startComponent.sh and stopComponent.sh.

These scripts first do a readDomain() to read the domain before actually starting or stopping the component. An OHS Standalone Domain is not that large, but does take a few seconds. With an embedded OHS it can actually a quite expensive operation. And is done twice when you need to stop and start a component. And that per component.

So, this can be smarter. Yesterday, I created a script that first looks for a property in the property file, that lists the possible components as a comma seperated list. It only does a readDomain() when that property is not defined.

The property file ohs.properties contains:

#############################################################################
# Set OHS SA Domain properties
#
# @author Martien van den Akker, Darwin-IT Professionals
# @version 1.0, 2017-02-20
#
#############################################################################
#
#Per domain nodemanager...
nmHome=/u01/data/oracle/config/domains/ohs_domain/nodemanager
nmHost=localhost
nmPort=5555
nmType=plain
#
#Domain
wlsDomainName=ohs_domain
wlsDomainsHome=/u01/data/oracle/config/domains
#
#AdminServer
adminUser=weblogic
adminPwd=welcome1
#usrCfgFile=wlsCfgFile
#usrKeyFile=wlsKeyFile
#
# OHS Component List
ohsComponents=ohs1

The wlst script startStopOhs.py is:

#############################################################################
# Start OHS via NodeManager.
#
# @author Martien van den Akker, Darwin-IT Professionals
# @version 1.0, 2017-03-01
#
#############################################################################
# Modify these values as necessary
import sys, traceback
scriptName = sys.argv[0]
#
#
lineSeperator='__________________________________________________________________________________'
#
#
def usage():
  print 'Call script as: '
  print 'Windows: wlst.cmd '+scriptName+' -loadProperties localhost.properties'
  print 'Linux: wlst.sh '+scriptName+' -loadProperties environment.properties'
  print 'Property file should contain the following properties: '
  print "adminUrl=localhost:7101"
  print "adminUser=weblogic"
  print "adminPwd=welcome1"
# 
#
def connectToNM(nmHost, nmPort, nmHome, wlsDomainName, wlsDomainHome, nmType):
  try:
    print(lineSeperator)
    print('Try to connect to the Node Manager')
    nmConnect(username=adminUser, password=adminPwd, host=nmHost, port=nmPort, domainName=wlsDomainName, domainDir=wlsDomainHome, nmType=nmType)
    print('Connected to the Node Mananger')
  except WLSTException:
    message='Apparently NodeManager not Started!'
    print (message)
    raise Exception(message)
#
#
def getSystemComponents(wlsDomainHome):
  try:
    print(lineSeperator)
    print('Get SystemComponents')
    try:
      sysComps=ohsComponents.split(',')
    except NameError, e:
      print 'Property ohsComponents not set, read from Domain'
      print('Read domain from : '+wlsDomainHome)
      readDomain(wlsDomainHome)
      cd('/SystemComponent')
      sysComps=ls(returnMap='true')
    return sysComps
  except WLSTException:
    message='Exception getting SystemComponents'
    print (message)
    raise Exception(message)
#
# Start a System Component
def startSystemComponent(sysComp):
  try:
    print(lineSeperator)
    print('StartSystemComponent '+sysComp)
    nmStart(serverName=sysComp, serverType='OHS')
  except WLSTException:
    message='Exception starting SystemComponent: '+sysComp
    print (message)
    raise Exception(message)
#
# Stop a System Component
def stopSystemComponent(sysComp):
  try:
    print(lineSeperator)
    print('StartSystemComponent '+sysComp)
    nmKill(serverName=sysComp, serverType='OHS')
  except WLSTException:
    message='Exception stopping SystemComponent: '+sysComp
    print (message)
    raise Exception(message)
#
# Start, restart or stop System Components, based on startStopOption.
def startStopSystemComponents(startStopOption, sysComps):
  try:
    print(lineSeperator)
    print('StartSystemComponents')
    if startStopOption=="stop" or startStopOption=="restart":
      for sysComp in sysComps:
        stopSystemComponent(sysComp)
    if startStopOption=="start" or startStopOption=="restart":
      for sysComp in sysComps:
        startSystemComponent(sysComp)
  except WLSTException:
    message='Exception starting or stopping SystemComponents, startStopOption:'+startStopOption
    print (message)
    raise Exception(message)
#
#
def main():
  try:
    startStopOption=sys.argv[1]
    wlsDomainHome = wlsDomainsHome+'/'+wlsDomainName
    print(lineSeperator)
    if startStopOption=="start" or startStopOption=="restart":
      print('(Re)Start OHS for domain in : '+wlsDomainHome+', with option '+startStopOption)
    else:
      print('Stop OHS for domain in : '+wlsDomainHome+', with option '+startStopOption)
    print(lineSeperator)
    print ('Connect to the Node Manager')
    connectToNM(nmHost, nmPort, nmHome, wlsDomainName, wlsDomainHome, nmType)
    #
    systemComponents=getSystemComponents(wlsDomainHome)
    #
    startStopSystemComponents(startStopOption, systemComponents)
   
  except NameError, e:
    print('Apparently properties not set.')
    print "Please check the property: ", sys.exc_info()[0], sys.exc_info()[1]
    usage()
  except:
    apply(traceback.print_exception, sys.exc_info())
    exit(exitcode=1)
#
main();

It uses a startStopOption that can have the values:

• start
• restart
• stop

Based on that, it determines if the components need to be stopped, and/or, started again.

So, this time I only have one wlst script. I could make my weblogic server start scripts smarter the same way...

To start the ohs you can use startOhs.sh:

#!/bin/bash
. ./ohs12c_env.sh
echo
echo Start OHS
wlst.sh ./startStopOhs.py  start -loadProperties ohs.properties

To restart the ohs you can use restartOhs.sh:

#!/bin/bash
. ./ohs12c_env.sh
echo
echo Restart OHS
wlst.sh ./startStopOhs.py  restart -loadProperties ohs.properties

And to stop the ohs you can use stopOhs.sh:

#!/bin/bash
. ./ohs12c_env.sh
echo
echo Stop OHS
wlst.sh ./startStopOhs.py  stop -loadProperties ohs.properties

With a OHS Standalone domain, you probably have stored the nodemanager credentials once with the storeConfig option. In that case you can remove the credentials in the nmConnnect line:

  #nmConnect(username=adminUser, password=adminPwd, host=nmHost, port=nmPort, domainName=wlsDomainName, domainDir=wlsDomainHome, nmType=nmType)
  nmConnect(host=nmHost, port=nmPort, domainName=wlsDomainName, domainDir=wlsDomainHome, nmType=nmType)

For a standalone OHS the ohs12c_env.sh script contains:

#!/bin/bash
echo set OHS StandAlone 12cR2 environment
#export JAVA_HOME=/usr/java/jdk1.8.0_101
#export ORACLE_BASE=/app/oracle
export ORACLE_BASE=/u01/app/oracle
export OHS_HOME=$ORACLE_BASE/product/middleware/OHS12212
export WL_HOME=${OHS_HOME}/wlserver
export SHARED_CONFIG_DIR=/u01/data/oracle/config
export OHS_DOMAIN_NAME=ohs_domain
export OHS_DOMAIN_HOME=$SHARED_CONFIG_DIR/domains/$OHS_DOMAIN_NAME
export NODEMGR_HOME=$OHS_DOMAIN_HOME/nodemanager
#
echo Set Weblogic Common Env.
. $OHS_HOME/oracle_common/common/bin/commEnv.sh
#
export PATH=$OHS_HOME/oracle_common/common/bin:$PATH