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
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
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