Oracle Database 10.2 datapump job fails because of invalid queue
Recently I had to clone one schema from Oracle Database 10.2.0.3 on HP-UX to 10.2.0.4 on Linux. The first problem came when I tried to export it and got the following errors: UDE-00008: operation...
View ArticleFailed creating physical standby database
These days I’m implementing Oracle Dataguard for two Oracle databases 10.2 as part of disaster recovery project, one of them is around 1.7TB, not yet production. As part of the DG setup backups have to...
View ArticleHow I run Oracle VM 2.2 guests with custom network configuration
Recently I was given three virtual machines running Oracle Enterprise Linux 5 and Oracle 11gR2 RAC on Oracle VM 2.2.1, copied straight from /OVS/running_pool/. I had to get these machines up and...
View ArticleHow to run standalone Oracle APEX Listener 2.0 with Oracle 11g XE and APEX 4.1.1
This is short guide on how to run standalone Oracle APEX Listener 2.0 beta with Oracle 11g XE. I’m using Oracle Enterprise Linux 5.7 for running Oracle APEX Listener and Oracle Database 11g XE with...
View ArticleMissing IPV6 address for local network interfaces causes service timeout
Year ago I installed Weblogic server + Oralce database server for a customer. Few months later my colleagues asked me whether something has changed in the environment or if something happened at the...
View ArticleOracle EM auto discovery fails if the host is under blackout
During Exadata project I had to put some order and tidy up the Enterprise Manager targets. I’ve decided to discover all targets, promote the one which are missing and delete old/stale one. I’ve got...
View ArticleUpgrade to Oracle Enterprise Manager Cloud Control 12c Release 3 (12.1.0.3)
Just a quick wrap up on EM12cR3 upgrade. I have to say that I was pleasantly surprised that everything went so smooth. I didn’t expected anything else, but with so how many products and components we...
View ArticleEMDIAG Repvfy 12c kit – installation
Recently I’m doing a lot of OEM stuff for a customer and I’ve decided to tidy and clean up a little bit. The OEM version was 12cR2 and it was used for monitoring few Exadata’s and had around 650...
View ArticleWhy my EM12c is giving Metric evaluation error for Exadata cell targets?
As part of my Cloud Control journey I encountered a strange problem where I got the following error for few Exadata Storage Server (cell) targets: Metric evaluation error start -...
View ArticleEMDIAG Repvfy 12c kit – basics
Second post in the series of emdiag repvfy kit about the basics of the tool. Having the kit already installed in earlier post it is time now to get some basics before we start troubleshooting. There...
View ArticleOracle GI 12.1 error when using NFS
I had quite an interesting case recently where I had to build stretch cluster for a customer using Oracle GI 12.1 and placing quorum voting disk on NFS. There is a document at OTN regarding the stretch...
View ArticleRMAN fails to allocate channel with Tivoli Storage Manager
I was recently configuring backup on the customers Exadata with IBM TSM Data Protection for Oracle and run into weird RMAN error. The configuration was Oracle Database 11.2, TSM client version 6.1 and...
View ArticleConsider database timezone when created during DST
Not long time ago customer asked me to create new a database and refresh it from production. Nothing special here database was quickly created and then refreshed using network import for few schemas....
View ArticleOEM 12c installation fails if parallel_max_servers too high
Just a quick post regarding OEM 12c installation where recently I had to install OEM 12c and during the repository configuration step the installation fails with error: ORA-12801: error signaled in...
View ArticleTroubleshooting Oracle DBFS mount issues
On Exadata the local drives on the compute nodes are not big enough to allow larger exports and often dbfs is configured. In my case I had a 1.2 TB dbfs file system mounted under /dbfs_direct/. While I...
View ArticleEMDIAG Repvfy 12c kit – troubleshooting part 1
The following blog post continue the EMDIAG repvfy kit series and will focus on how to troubleshoot and solve the problems reported by the kit. The repository verification kit reports number of...
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Speaking at BGOUG 2014 Spring conference
I’ll be speaking at the spring conference of the BGOUG held between 13th and 15th of June. I was a regular attendee of the conference for eight years in a row but since I moved to UK I had to skip the...
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Speaking at Oracle Open World 2014
I’m more than happy that I will be speaking at this year’s Oracle Open World. The first and only time I attended was back in 2010 and now I’m not only attending but speaking as well! Both with Jason...
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2014 in review
Happy New Year! So many things happened in the past six months, I really can’t tell how quickly the time passed. As people say the life is what happens to you while you are making plans for the future....
View ArticlerunInstaller fails at CreateOUIProcess with permission denied
Just a short post on a problem I encountered recently. I had to install 11.2 GI and right after running the installer I got a message saying permission denied. Below is the exact error: [oracle@testdb...
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