Trying to start a database listener that doesn’t exist generates log files. In older versions of the database, it’s just one file, but what about in 11g, with its fancy Automatic DIagnostic Repository?
Sometimes, even on the 3rd or 4th run-through of a database upgrade test, it’s possible to miss something. Practice makes perfect.
Is opatch failing with the message “ApplySession failed: Patch ID is null.”? Might want to verify your opatch version…
It seemed simple enough. We were moving our E-Business Suite database to a new server. References to the old database server had to be replaced in a variety of places: Oracle Internet Directory, a handful of tnsnames.ora files, and of course, the context files on the application tier servers. After that, everyone could connect to the database just as they always had. No problems, right?
Well, okay, maybe one small problem.
The excitement of solving mysteries makes me bad at math
In my last post, I failed to notice that a HugePages_Total of 4645, while satisfyingly greater than zero, is definitely not 8196, the desired and expected value I had configured. Upon reflection, the reason was pretty obvious: the OS will only allocate contiguous blocks of memory [...]
What happens when I try to use instructions for SUSE Linux Enterprise Server 9 (SLES9) to enable hugepages on SLES10? Nothing. And that’s a problem.
Strange things can happen when people ask themselves a question and are unwilling to let go of it. Some retreat into seclusion to ponder the meaning of life. Some waste hours reading ultimately unrelated content on Wikipedia. Some spend way too much time writing marginally (if that) useful solutions to their questions. In this post, I’m guilty of that last one, though I’ve also been known to do the Wikipedia thing. My question? “Hey, if how could I find the largest files and subdirectories in this directory?”
After two months of cheerfully monitoring your E-Business Suite instances, Grid Control declares that most of the Apps tier targets have ‘Unknown’ status. What just happened? Sunspots? Evil gnomes? E-Business Suite snubbed Grid Control at an enterprise software social event? Maybe. Or maybe you just have password problems.
I was playing around with using Oracle Internet Directory to resolve database service names recently, and it turned into an adventure. Not exactly a memoir-inspiring adventure, but at least one worth blogging about. Maybe my little voyage of discovery here will help someone else who gets a TNS-03505 when using LDAP to look [...]
