Comments for ora-solutions.net - Martin Decker

Comment on PGA Management in Oracle 10gR2 by Articles about _smm_max_size volume 1 « Article Directory

Articles about _smm_max_size volume 1 « Article Directory — Tue, 15 Jun 2010 03:54:29 +0000

[...] PGA Management in Oracle 10gR2 | ora-solutions.net – Martin … if p_a_t between 500 and 1000 MB, then _smm_max_size = 100 MB … degree of parallelism (dop) <= 5, then _smm_max_size is used for parallel slaves instead of smm_px_max_size … [...]

Comment on Your experience with RAC Dynamic Remastering (DRM) in 10gR2? by lefterhs

lefterhs — Thu, 10 Jun 2010 12:05:05 +0000

We had the same issue on a 2-node 10.2.0.4 RAC (HP-UX).
2 error 481 instance crashes and GRD freezes due to DRM operations.
The biggest one recorded, lasted 48 minutes.
In our case, the object being remastered was not always the same and not relevant to its size.
For instance, the 48 minute freeze was caused by a DRM on a 800mb table, and the database contains tables in the scale of Terabytes (12 TB total db size).
Since, the local Oracle branch and Metalink had not suggested any patches, we decided to disable DRM and, since then,
these issues have not reappeared.

Comment on Wait Event “cursor: pin S wait on X” suspected to be related with Automatic Memory Management by Krishna

Krishna — Mon, 17 May 2010 17:53:38 +0000

Thanks for this tip.

Thanks
Krishna

Comment on RAC Deadlock Detection not working on 10.2.0.4 / Linux Itanium by admin

admin — Fri, 02 Apr 2010 07:59:45 +0000

Hello Steve,

i don´t think that this bug exists on other platforms. However, if you are experiencing this issue on other platforms, don´t hesitate to contact Oracle support and refer them to this bug and ask for clarification.

Best Regards,
Martin

Comment on RAC Deadlock Detection not working on 10.2.0.4 / Linux Itanium by steve davidson

steve davidson — Wed, 31 Mar 2010 19:51:01 +0000

Wondering whether this patch might be available for other ports? ANy idea?

Comment on Installing 10gR2 RAC on Linux Itanium (Montecito) by Omar

Omar — Wed, 03 Mar 2010 14:59:44 +0000

Martin,
I know, thanks but I am installing the patch on $CRS_HOME then installing the Clusterware on the same home, till now I am not installing RDBMS, but I think I have resolved the Issue,
I had to “# unset ORACLE_HOME” first.
after that OUI will till you cannot install on non-empty, ignore this and replace the existing directory.

- Regarding 10.2.0.4 patchset I had no lock, the OUI exits always even after using the patch and “jreLoc” option.

Comment on Installing 10gR2 RAC on Linux Itanium (Montecito) by admin

admin — Sun, 28 Feb 2010 17:02:23 +0000

Omar,

please be aware that Oracle Clusterware has to be installed as a seperate Oracle Home and can not be installed into an RDBMS Oracle Home.

Regards,
Martin

Comment on Installing 10gR2 RAC on Linux Itanium (Montecito) by Omar

Omar — Sun, 28 Feb 2010 14:31:03 +0000

Hi –
I got this error when installing the CRS into the same home as when installing the Patch, did I miss something or what
Checking for Oracle Home incompatibilities ….
Check complete. The overall result of this check is: Failed <<<<
Problem: Oracle Clusterware cannot be installed into an existing Oracle Home.
Recommendation: Choose a new Oracle Home for installing this software.

Comment on Was this database created as 32-bit or 64-bit db? by Martin

Martin — Thu, 05 Nov 2009 21:51:14 +0000

Sandro,

thank you for participating and pointing out how to determine the current bit-platform of the running instance or binaries. It may well be that on a Linux x86-64 system, Oracle 32bit binaries have been installed, although that is not supported by Oracle.

Regards,
Martin

Comment on Was this database created as 32-bit or 64-bit db? by Sandro

Sandro — Thu, 05 Nov 2009 21:25:03 +0000

– connected
SELECT Length(addr)*4 || ‘-bits’ word_length FROM v$process WHERE ROWNUM =1;

– not connected
$ file $ORACLE_HOME/bin/oracle