Year: 2016

OTN Appreciation Day : Oracle WebLogic 12c #ThanksOTN

Posted on by Osama Mustafa in News
OTN Appreciation Day The idea came from Our Oracle ACE Director ( the Mind ) Tim Hall Here 

 OTN : Oracle Technology network  or let me say OTN gather all of us no matter where you live in this world ? only one thing gather us our love to OTN.

OTN done so much things to all of us, one of things i love and most of the people in the community know that is Fusion middleware and i will write about Oracle Weblogic 12cR2 the documentation available here 

Oracle Weblogic 12cR2 comes with different features such as the following:-

  • Multitenancy Support
  • Continuous Availability
  • Java EE 7 Support
  • JDK 8 Certification
  • Docker Certification
  • Runtime Improvements
  • Manageability Improvements
  • Documentation Update History for Release 12.2.1
  • Standards Support, Supported Configurations, and WebLogic Server Compatibility
  • Deprecated Functionality (WebLogic Server 12.2.1)
  • Removed Functionality and Components

If will talk about them all it will be documentation not blog post therefore i will choose 2 or 3 topics.

  • Docker Certification

Oracle WebLogic Server 12.2.1 is certified to run inside a Docker container. Docker is a Linux-based container technology that enables you to quickly create lightweight clustered and non-clustered WebLogic Server domain configurations on a single host OS or virtual machines, for either development or production environments.

you can have access to github here and how to Run Weblogic on Docker check here 

  • Multitenancy Support

Multitenancy in WebLogic Server provides a sharable infrastructure for use by multiple organizations. These organizations are a conceptual grouping of your own choosing, which you can think of as tenants. By allowing one domain to support multiple tenants, Weblogic Server Multitenant improves density and achieves a more efficient use of resources while eliminating the hurdles typically present when trying to share multiple applications: runtime cross-application impact, security differences, data co-mingling, and administrative challenges.

 WebLogic Server MT enables an end to end multitenant infrastructure, including multitenancy from the load balancer to the middle tier and cache tier, and to the database tier. WebLogic Server MT extends the Oracle WebLogic Server Enterprise Edition and Oracle WebLogic Suite products

Alot of different features.

Thanks
Osama

Install Oracle EBS R12.2 StartCD 51 on RAC

Posted on by Osama Mustafa in Application
this post is questionnaire more than a technical, EBS startCD 51 released before 1 month and it’s comes with different features such as DB 12c will be installed and it’s support RAC installation Features immediately which mean you don’t have to install EBS on Single node then convert to RAC.

Like the above pic, well everything done successfully for DB installation without any problem same as below :-

The installation is multi – node which mean Apps on different server, when trying to connect APPS to RAC DB each time the same error appered with no sense which is 
ORA-12514: TNS:listener does not currently know of service requested in connect descriptor
Be noted that the DB is reigster with SCAN and tnsping is working , and i can access DB using TOAD thru SCAN or Local Listener
Therefore after multi try of the installation and fix the error, i choose the old way which is Single node and covert to RAC and the funny thing it’s working without any issue.
If there is any idea about this error please comment below maybe i missed something 
Thanks
Osama

Result: Clock synchronization check using Network Time Protocol(NTP) failed RAC

Posted on by Osama Mustafa in Operating system
When trying to Run the Runcluvfy command to check RAC pre requsiites the NTP failed , but at the same time it’s gives you the solution to solve it  :-

in the following file :- /etc/sysconfig/ntpd open it and edit it, add the following :-

[root@prddb2 .ssh]# cat /etc/sysconfig/ntpd
# Drop root to id ‘ntp:ntp’ by default.
OPTIONS=”-x -u ntp:ntp -p /var/run/ntpd.pid -g”

Add the above letter in RED color only.

Thanks
Osama

Skip DNS reslov.conf check during RAC configuration

Posted on by Osama Mustafa in Operating system
Before start reading this post you should know that Oracle is highly recommended using DNS while configure Oracle RAC include to this it will make your life easier in case any one wants to change the IP’s.

However today i was working on EBS installation using startCD51 and this is allow me to install EBS directly on RAC but the customer database RAC not configured to use DNS so everytime i was trying to install EBS

The following Error shown up in my face :-

INFO: Verification Result for Node:RAC1,RAC2WARNING: Result values are not available for this verification taskINFO: *********************************************INFO: Task resolv.conf Integrity: This task checks consistency of file /etc/resolv.conf file across nodesINFO: Severity:CRITICALINFO: OverallStatus:OPERATION_FAILEDINFO: ———————————————–

and there is nothing i can do to skip this error,

i choose to do the following ;-

Rename resolv.conf to resolv.conf.old for example

and re run the installation again .

perfect worked for me

Thanks
Osama

Maximum locked memory check Oracle

Posted on by Osama Mustafa in Operating system

INFO: Maximum locked memory check: Check maximum locked memory setting on the system
INFO: Severity:IGNORABLE
INFO: OverallStatus:VERIFICATION_FAILED

To solve this issue just add the following to /etc/security/limits.conf

*                soft   memlock         unlimited
*               hard    memlock         unlimited

Thank you
Osama mustafa

ORA-12154: TNS:could not resolve the connect identifier specified” error during DBCA

Posted on by Osama Mustafa in Database
While trying to install Oracle Database 11gR2 on Windows 2012R2 I faced the following error :-

ORA-12154: TNS:could not resolve the connect identifier specified” error during DBCA

After checking the logs and investigate about the issue  :-

The password was containing “@” after removed it from the password everything works perfectly.

Thanks
Osama 

Unable to retrieve config file from Database

Posted on by Osama Mustafa in Application
The above error shown up when trying to install APPS and connect it to the RAC/single database to fix this issue Just copy the configuration file after the installation is done successfully under the path :- /ebs1stag/oracle/SEBSDB/12.1.0/appsutil for example  the file name usually conf_SEBSDB.txt and load the file, try again.
Thank you
Osama

CRS-5013 RAC 12c

Posted on by Osama Mustafa in Database
When starting Oracle RAC 12c the following error appears :-

[root@—— bin]# ./crsctl check cluster
CRS-4535: Cannot communicate with Cluster Ready Services
CRS-4530: Communications failure contacting Cluster Synchronization Services daemon
CRS-4534: Cannot communicate with Event Manager

CRS-5013: Agent “ORAROOTAGENT” failed to start process “/grid/app/12.1.0.2/bin/osysmond” for action “start”: details at “(:CLSN00008:)” in “/grid/app/oracle/diag/crs/……/crs/trace/ohasd_orarootagent_root.trc”

The cause :- DB Node was reboot.

To solve this issue :-

CRS-2672: Attempting to start ‘ora.crf’ on CRS-2674: Start of ‘ora.crf’ on failed CRS-2679: Attempting to clean ‘ora.crf’ on (Doc ID 1902447.1)

Thanks
Osama

oracle.security.jps.wls.listeners.JpsApplicationLifecycleListener’ Class not Found

Posted on by Osama Mustafa in Application

Aug 24, 2016 2:23:57 PM weblogic.nodemanager.server.AbstractServerManager log
INFO: Server output log file is ‘/u01/Oracle/Middleware/domains/mserver/STAGEDQ/servers/EDQ_INS1_SIPEDQ1/logs/EDQ_INS1_SIPEDQ1.out’

java.io.IOException: Server failed to start up. See server output log for more details.
        at weblogic.nodemanager.server.AbstractServerManager.start(AbstractServerManager.java:196)
        at weblogic.nodemanager.server.ServerManager.start(ServerManager.java:23)
        at weblogic.nodemanager.server.Handler.handleStart(Handler.java:609)
        at weblogic.nodemanager.server.Handler.handleCommand(Handler.java:121)
        at weblogic.nodemanager.server.Handler.run(Handler.java:71)
        at java.lang.Thread.run(Thread.java:745)
Aug 24, 2016 2:26:00 PM weblogic.nodemanager.server.Handler handleStart
WARNING: Exception while starting server ‘EDQ_INS1_SIPEDQ1’
java.io.IOException: Server failed to start up. See server output log for more details.
        at weblogic.nodemanager.server.AbstractServerManager.start(AbstractServerManager.java:196)
        at weblogic.nodemanager.server.ServerManager.start(ServerManager.java:23)
        at weblogic.nodemanager.server.Handler.handleStart(Handler.java:609)
        at weblogic.nodemanager.server.Handler.handleCommand(Handler.java:121)
        at weblogic.nodemanager.server.Handler.run(Handler.java:71)
        at java.lang.Thread.run(Thread.java:745)

The above is EDQ Cluster Error, Fresh installation after searching inside the logs i found the following :-

‘oracle.security.jps.wls.listeners.JpsApplicationLifecycleListener’ Class not Found

This is simply happened because StartScriptEnabled property in nodemanager.properties file was set to ‘false’. therefore must set to true

Apply Weblogic Patch Offline mode

Posted on by Osama Mustafa in Fusion Middleware

  1. Shutdown all the services for weblogic.
  2. unzip the patch under $MW_HOME/utils/bsu/cache_dir
  3. run the following command :-

./bsu.sh -prod_dir=$weblogic_home  -patch_download_dir=Patch_location -patchlist=patch_id -verbose -install

The final Result 

Or you can apply the weblogic patch using smart update

Thanks
Osama Mustafa