We've been battling with very slow performance for some time. Herewith a detail description of the problem:
Solaris-11/ZFS/Oracle problem
We purchased Oracle T4-2 servers, and are experiencing some weird performance problems.
Hardware:
T4-2
2 x 600GB HDD per server
128GB memory per server
2 x dual port QLE2562 FO HBAs
IBM V7000 StorWyse data array
2 x CISCO MDS 9148 fibre optic fabric switches
Software:
Solaris 11.1
MPXIO
Solaris 10 branded local zones
ORACLE 10g Enterprise edition
Project for the oracle user:
user.oracle:100::oracle::process.max-file-descriptor=(basic,8192,deny);process.max-stack-size=(priv,32768,deny);project.max-shm-memory=(priv,21474836480,deny)
We received the first server and wanted to migrate our APPB application system and Oracle 10g Standard Edition database from our SUN T5240 to the T4-2.
T4-2 setup � Disk 0:
Global zone: Solaris 11.1 ( ZFS - whole disk for the root pool)
Local zones: On the Solaris 11 environment we built two branded Solaris 10 zones using an Oracle template provided on the Oracle website - solaris-10u11-sparc.bin.
Our complete database resides on the IBM data array, in UFS LUNs.The UFS LUNs were mounted onto ZFS mount-points in the root partition (/), and then LOFS mounted into the zones.
We started with the Solaris 11.1 environment.
1)After a day or two the performance of the database starts deteriorating rapidly. We then stop the database and reboot the machine. After the reboot the performance level is restored.
2)Another huge deterioration in performance happens when we unmount the V7000 LUNs, and reboot to the alternate Solaris, and re-mount the LUNs.
3)What further compounds the issue is that when we start another the database in the second zone, we see another huge performance degradation.
4)We have logged a call with ORACLE. They requested us to gather information which was analysed by them. They did not find anything wrong with the way ORACLE was installed and the setup of the instances.
On Disk 1 we did a Solaris 10 8/11 (Update 10) installation, which we patched with the April 2013 CPU patchset. In this Solaris 10 global zone we built two native Solaris 10 local zones. The Oracle 10g databases were built in the zones (same configurations settings) not in the global zone, onto UFS LUNs. The database in its entirety lives on the IBM V7000 data array. This works fine.
We then received our next T4-2 server.Loaded it again with Solaris 11.1, and upgraded to ORACLE 12c SE Release 12.1.0.1.0 - 64bit12xxx seeing that Oracle 10 is not certified on Solaris 11. To keep things simple, we built two small databases in the ZFS root pool. The complete system now resides on one disk no UFS LUNs to consider, no Fibre Optic fabric, no CISCO switches, no IBM data array, BUT we get the same problem. The system will run for some time and then slow down drastically. Starting the second database slows the system down abnormally.
I am running an Oracle 10.2.0.3 on Solaris 5.9 OS. Front end appplication is PeopleSoft v8.8.From my AWR report I have found below SQL which needs to be tuned:
I have oracle 10g up and running on Solaris 10, from windows I would like to connect to sql plus through windows authentication, for that I have already made sure that remote_auth = true and have created user in oracle with OPS$. But still I cannot connect.
I have the same setup but with oracle on windows server, the os authentication from windows clients works just fine.
does oracle 10g on solaris 10 supports windows os authentication?
I am part of a upgradation and migration proj where an Oracle 9i db on a HP-UX OS is going to be upgraded and migrated as 10g db on a solaris OS environment.I am from the application team(Data warehouse team) and we are yet to allocate a specific DBA for taking care of this activity.
We are still in the requirements stage...different requirements and challenges that should be taken care and would occur in the roadmap of this project from a DBA perspective.All your inputs would be very valuable to me.
We have an Oracle 9i (9.2.0.7) two-node RAC database running on Solaris 5.8. Recently we have switched our production database from no archive log mode to archive log. We changed the parameter CLUSTER_DATABASE=FALSE on one of the instances before converting and reverted back.why this parameter needs to be changed to false?
We are planning to migate Oracle database from Linux 10gR2 (non-ASM) to Solaris (ASM) and then Oracle upgrade that database from 10gR2 to 11gR2 on Solaris.
I want to teach myself Oracle DB 11g so I've created an Oracle Solaris 10 VM (under Oracle Virtual Box, see a theme here?) and when I went to look for the 11g installer I could only find the x86_64 packages but not the x86 packages.
I'm trying to install the Oracle Database 11g release 11.2.0.3 on to Solaris 11.1. I've place the command below and the results of the command. See below:
Checking Temp space: must be greater than 180 MB. Actual 2971 MB Passed Checking swap space: must be greater than 150 MB. Actual 3554 MB Passed Checking monitor: must be configured to display at least 256 colors. Actual 16777216 Passed Preparing to launch Oracle Universal Installer from /tmp/OraInstall2012-11-08_04-50-43PM. Please wait ...louis@Solaris_T510:~/Downloads/Oracle_Database-11g_11.2.0.3/database$ Warning: Cannot convert string "-monotype-arial-regular-r-normal--*-140-*-*-p-*-iso8859-1" to type FontStruct Warning: Cannot convert string "-monotype-arial-regular-r-normal--*-140-*-*-p-*-iso8859-2" to type FontStruct [code]........
We have to migrate our database from current OS (AIX 5.3) to Solaris 10. We'll do it through expdp / impdp. Is there any other way to do it as well?
Also, we have dataguard configured at current setup. So is there any way we can take backup of existing database at DR & restore it at new server (Solaris) or we'll have to take a fresh backup from DC (after migration) & ship it to DR & create a new standby?
We are on oracle 10.2.0.4 on solaris 10. My question is on a sql query. Is it possible to rewrite a query to avoid the connect by and prior constructs and use joins? For example i have the following query:
SELECT empno, ename, job, mgr, hiredate FROM emp START WITH empno in (7566,7698) CONNECT BY PRIOR empno = mgr
How can it be rewritten using a two table join (self join)? I am not sure if it can be done and whether it is possible.
From some day I have this error during export data pump:
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options ORA-31626: job does not exist ORA-31687: error creating worker process with worker id 1 ORA-31687: error creating worker process with worker id 1 ORA-31688: Worker process failed during startup.
This error is random, if I retry after few minutes the expdp work correctly.
1) to define a job in oracle9i for solaris 2) to schedule this job
Remember i have prior experience deploying jobs at windows platform but when i try it on (9i for ) solaris, the script does not work as it does not accept a submit job request.
I have a question regarding memory parameters in oracle database 9.2.0.8, especially sga_max_size and db_cache_size. Database server has 32G of ram. Oracle parameter on server shmmax is set to 16G. Is reasonable to set sga_max_size to the same value, and db_cache_size to 80% of that size?
I am querying v$sga and getting variable size : 211337216 bytes.when querying v$sgastat then getting
java Pool : 16777216 Large Pool : 41943040 Shared pool : 398560392
But as per my knowledge following condition should satisfy,but not getting
[code]
Variable sga = java pool + large pool + shared pool select pool,name,sum(bytes) from v$sgastat where pool in ('shared pool','java pool','large pool') group by pool,name;
Here variable size using v$sga : 211337216 bytes
and java pool + large pool + shared pool : 211302536 bytes.
I have a procedure which mainly run queries on a Table which has nearly 9.5 million recodes. This procedures takes nearly 15 min to complete execution on our main database. I exported and imported the schema to our backup database and the same procedure just took 3 seconds to complete.
I tried to analyze the table in our main database and tried to execute the procedure again but did not show any improvements. ANALYZE TABLE DN_ACTIONS COMPUTE STATISTICS;
I am not sure computing the statistics for all the tables in the schema will work. I also checked there is enough disk space where oracle data files are stored. I am also turning on the sql trace to see what sql statements in the procedure is taking longer time.
Customer is sending data from legacy system (Source) with the web service which in turn calls a package lying on Oracle server (Target). Now this package is simply inserting data passed by legacy system into master staging table in Oracle database. When they started this process in Sept 2011 then 4 lack records were inserted into staging table. In Oct 11 it was 0 records Nov 11 it was 2 lack records, Dec 11 it was 1 lack records, in Jan 12 it was 1 lac records, Feb 12 73k records, Mar 12 0 records, Apr 12 52k records.
As we see that number of records inserted in the table got reduced with time.. what should be the starting point here since web service is calling that package on the fly, how can i enable trace for that package? I cannot replicate this is Dev as this process is only working in PROD.
We are having major differences in performance when accessing an Oracle 11gR2 database from two different environments.
I won't sadden you with the gory details of the full application but I will use an indicative example of our problem.
We have SQL Developer in both environments. In each of these SQL Developer instances is a defined a connection to the same database on another machine. So there is the PC looking at a database and a virtual instance looking at the same database.
Selecting the '+' sign next to 'tables' for that connection, on the PC the list of four tables comes back in 4 seconds but on the virtual instance the list of the same four tables comes back in 1 minute and 50 seconds.
This sort of timing issue is repeatable for all accesses to the Oracle database on the third machine.
Testing our 9i to 11g upgrade, we've imported the entire DB into the new machine.We've found that certain procedures are really suffering performance problems. BUT, we've also found, that if we check out a production copy of the procedure from our source code control, and reinstall it, the performance issue goes away. Just alter the procedure and recompiling does NOT work.
The new machine where the 11g database exists is slightly different than the source, but it's not like we have this problem with every procedure. It's only a couple.
any possible reason that we'd have to re-install a procedure to correct a performance problem?
I am trying to export selective data from one of my prod database tables. But not succeeding. I was keep on trying for the past 2 hours.
OS : SOLARIS SPARC ORACLE - 10G Query --> WHERE E3RECV_DT LIKE '201305%' (I need to export this query data)
Below Script i am using =============== exp E3USER@SGEBAPU2 statistics=none consistent=n buffer=100000000 file=exp_pipe_file TABLES=IFDATA query="WHERE E3RECV_DT LIKE '201305\%'" log=PGTB_IFDATA_conditional.log
After querying the view v$db_transportable_platform, I can not see any information about Solaris SPARC, but only about Solaris x86. Can I migrate database to Solaris SPARC? What can I do to performing RMAN CONVERT?
