Oracle SOA 11g Performance Issue

Hi,
We have set up Oracle SOA Suite on AIX environment. Java which we are using is IBM Jdk 1.6. Recently we are hit with performance issue. Frequently we are getting out of memory exception and we need to restart the server and sometimes physically reboot the machine, because out of 16 GB of RAM 4GB we have given as heap space to Admin Server, 7 GB to SOA Server but it is taking more than 7 GB as heap space. On stopping or killing both the services memory is not getting released
SOA Suite Version : 11.1.1.3
Instance Node: Single Node
I collected the logs and tried to analyze in Thread Dump Analyzer and i could see objects(Reserved) is taking 100% of the CPU Utilization.
We are getting the following error highlighed in the analyzer. There are about 200+ threads got stuck.
"HTTPThreadGroup-42" prio=10 tid=0x6382ba28 nid=0x20bf4 waiting on condition [0x6904f000..0x6904fb94]
at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:146)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireNanos(AbstractQueuedSynchronizer.java:772)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.tryAcquireNanos(AbstractQueuedSynchronizer.java:1087)
at java.util.concurrent.SynchronousQueue$Node.waitForPut(SynchronousQueue.java:291)
at java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:443)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:475)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:674)
at java.lang.Thread.run(Thread.java:595)
"HTTPThreadGroup-41" prio=10 tid=0x6ae3cce0 nid=0x20bf0 waiting on condition [0x68d8f000..0x68d8fc14]
at sun.misc.Unsafe.park(Native Method)
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:146)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireNanos(AbstractQueuedSynchronizer.java:772)
at java.util.concurrent.locks.AbstractQueuedSynchronizer.tryAcquireNanos(AbstractQueuedSynchronizer.java:1087)
at java.util.concurrent.SynchronousQueue$Node.waitForPut(SynchronousQueue.java:291)
at java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:443)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:475)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:674)
at java.lang.Thread.run(Thread.java:595)
Has anyone faced same issue? We are badly hit with this performance issue in UAT
Please concider this on high priority and someone please help us
Regards,
Sundar

Always raise a case with Oracle Support for such issues.
Regards,
Anuj

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We have installed an admin server and 2 managed servers in cluster in same box. The machine utilization reached almost 95% when i started the admin server and 2 managed server (min n max size of heap given as 1GB each in start up). So i shut down one managed server and increased the JVM size of other to 2 GB and found that the heap size reaches 1.5 GB on start up (observed the heap size using Jconsole)
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thanks

Always raise a case with Oracle Support for such issues.
Regards,
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"oracle database 11g performance issues"

Hai everybody,
In oracle 11g 11.2.0.1.0 we are developing business application using java, Our developers said Database performance is very poor it takes more time to retrieve values from database, they check froantend and middleware that has no problem, if the query returns less values or rows it takes little more time. How can i solve this problem? please help me
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hai,
sorry for the delay my @$ORACLE_HOME/rdbms/admin/ashrpt.sql output shown below
ASH Report For ORCL/orcl
DB Name DB Id Instance Inst Num Release RAC Host
ORCL 1295420332 orcl 1 11.2.0.1.0 NO node6.node6-
CPUs SGA Size Buffer Cache Shared Pool ASH Buffer Size
2 1,561M (100%) 480M (30.7%) 432M (27.7%) 4.0M (0.3%)
Analysis Begin Time: 04-Oct-12 16:44:16
Analysis End Time: 04-Oct-12 16:59:33
Elapsed Time: 15.3 (mins)
Begin Data Source: V$ACTIVE_SESSION_HISTORY
End Data Source: V$ACTIVE_SESSION_HISTORY
Sample Count: 3
Average Active Sessions: 0.00
Avg. Active Session per CPU: 0.00
Report Target: None specified
Top User Events DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
Avg Active
Event Event Class % Event Sessions
null event Other 33.33 0.00
Top Background Events DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
Avg Active
Event Event Class % Activity Sessions
CPU + Wait for CPU CPU 33.33 0.00
os thread startup Concurrency 33.33 0.00
Top Event P1/P2/P3 Values DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
No data exists for this section of the report.
Top Service/Module DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
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SYS$BACKGROUND UNNAMED 66.67 UNNAMED 66.67
SYS$USERS UNNAMED 33.33 UNNAMED 33.33
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Top SQL Command Types DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
No data exists for this section of the report.
Top Phases of Execution DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
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Phase of Execution % Activity Sessions
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Top SQL with Top Events DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
No data exists for this section of the report.
Top SQL with Top Row Sources DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
No data exists for this section of the report.
Top SQL using literals DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
No data exists for this section of the report.
Top Parsing Module/Action DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
No data exists for this section of the report.
Top PL/SQL Procedures DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
No data exists for this section of the report.
Top Java Workload DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
No data exists for this section of the report.
Top Call Types DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
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Top Sessions DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
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was found waiting for that particular event. The percentage shown
in this column is calculated with respect to wall clock time
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-> For sessions running Parallel Queries, this section will NOT aggregate
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10, 1 33.33 CPU + Wait for CPU 33.33
SYS [email protected] (ARC2) 1/917 [ 0%] 0
19, 148 33.33 null event 33.33
SYS [email protected] (J000) 1/917 [ 0%] 0
139, 3 33.33 os thread startup 33.33
SYS [email protected] (CJQ0) 1/917 [ 0%] 0
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No data exists for this section of the report.
Top Sessions running PQs DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
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Top DB Objects DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
No data exists for this section of the report.
Top DB Files DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
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Top Latches DB/Inst: ORCL/orcl (Oct 04 16:44 to 16:59)
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Slot Time (Duration) Count Event Count % Event
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16:50:00 (2.0 min) 2 null event 1 33.33
os thread startup 1 33.33
End of Report
Regards Benk

Can i use "Oracle Database 12c: Performance Management and Tuning " training for getting certification on "Oracle Database 11g: Performance Tuning 1Z0-054"

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Naveen Kumar C wrote:
Hi,
y
I want to take the certification Oracle Database 11g: Performance Tuning exam 1Z0-054 and want to write the exam.
To earn the OCE credentials, I know that we need to take training from Oracle University. I am not an OCP currently.
Can I write the exam now and later take the course to meet the certification requirements? I know it is not the right way, but I can not pay $3000 for the course as of now. I can write the exam through self study. I want to check if I can take the exam now and later take the course.
Is it mandatory to take the course before taking the exam?
Thanks,
naveen.Indeed you can take the exam now, and subsequently earn the 11g PERFTUNE OCE credential when you either:
1) complete, submit and get verified the OU authorised 11g perftune course (possible but seems a little cart before horse).
or
2) Become 11g DBA OCP.

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!http://blogs.oracle.com/certification/2009-0204-1123.gif!
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Hello Hussein
Yes true, I remember it for the OCE and Linux exams they rescheduled the end date several times. As far as I know it is related to the number of participants and the given feedback.
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!http://blogs.oracle.com/certification/2009-0204-1122.gif!
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Hello Hussein
Yes true, I remember it for the OCE and Linux exams they rescheduled the end date several times. As far as I know it is related to the number of participants and the given feedback.
I've also participated to several other exams, and I must admit that it is a long and hard process to get through. When I got the feedback 10 weeks after the beta period closure, I had to review nearly all the topics to get the exams passed the second time. But this it is a cheap and good exam preparation.
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!http://blogs.oracle.com/certification/ORC-0128.jpg!
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<ul><li>Certification Track: Oracle Database 11g Performance Tuning Certified Expert (OCE)</li>
<li>Certification Exam: 1Z0-054 – Oracle Database 11g: Performance Tuning</li>
<li>Stay Up To Date: Oracle Certification Blog | Oracle Certification Website</li>
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Naveen Kumar C wrote:
Hi,
y
I want to take the certification Oracle Database 11g: Performance Tuning exam 1Z0-054 and want to write the exam.
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Is it mandatory to take the course before taking the exam?
Thanks,
naveen.Indeed you can take the exam now, and subsequently earn the 11g PERFTUNE OCE credential when you either:
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or
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