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Sep 10, 2010
Sep 10, 2010

A fair bite of the CPU pie? Monitoring & Testing Oracle Resource Manager

Introduction We’re in the process of implemention Resource Manager (RM) on our Oracle 11gR1 Data Warehouse. We’ve currently got one DW application live, but have several more imminent. We identified RM as a suitable way of - as the name would suggest - managing the resources on the server. In the first instance we’re looking at simply protecting CPU for, and from, future applications. At some point it would be interesting to use some of the more granular and precise functions to demote long-running queries, have nighttime/daytime plans, etc.
Sep 2, 2010
Sep 2, 2010

Misbehaving Informatica kills Oracle

This problem, which in essence is bad behaviour from Informatica bringing down Oracle, is a good illustration of unintended consequences of an apparently innocuous security setting. Per our company’s security standards, database passwords expire every 90 days. When this happens users are prompted to change their password before they can continue logging into Oracle. This applies to application user IDs too. It appears that Informatica 8.6.1 HF6 (part of OBIA 7.
May 6, 2010
May 6, 2010

What am I missing here??? ORA-01017: invalid username/password; logon denied

What’s going on here? The username/password is definitely valid, proved by the sqlplus connection. Configuring DAC in OBIA 7.9.5.1: [sourcecode] What can I do for you? 1 - Enter repository connection information 2 - Test repository connection 3 - Enter email account information 4 - Send test email 5 - Save changes 6 - Exit Please make your selection: 1 These are your connection type choices: 1 - MSSQL 2 - DB2 3 - Oracle (OCI8) 4 - Oracle (Thin) 5 - Keep current ( Oracle (Thin) )
Apr 24, 2010
Apr 24, 2010

RTFAL!

This is a note-to-self really. When playing around with Oracle and something’s not working - RTFAL: Read The Flippin Alert Log! After resizing a VM I was getting this problem: [sourcecode] [oracle@RNMVM01 ~]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.1.0 Production on Sat Apr 24 17:44:44 2010 Copyright (c) 1982, 2009, Oracle. All rights reserved. Connected to an idle instance. SQL> startup nomount ORA-00845: MEMORY_TARGET not supported on this system SQL> [/sourcecode]
Mar 9, 2010
Mar 9, 2010

ORA-13757: “SQL Tuning Set” “string” owned by user “string” is active.

I’ve been playing around with SQL Tuning Sets, and was trying to clear up my mess. To list all the tuning sets: [sourcecode language=“sql”] SET WRAP OFF SET LINE 140 COL NAME FOR A15 COL DESCRIPTION FOR A50 WRAPPED select name,created,last_modified,statement_count,description from DBA_SQLSET [/sourcecode] [sourcecode] NAME CREATED LAST_MODI STATEMENT_COUNT DESCRIPTION ————— ——— ——— ————— —————————————————————————————- sts_test_02 09-MAR-10 09-MAR-10 1 Test run 1 sts_test_01 12-FEB-10 12-FEB-10 1 an old STS test test test [/sourcecode]
Feb 23, 2010
Feb 23, 2010

Oracle Support Blog back online, kinda.

After it was ripped down last week, Chris Warticki’s blog is back online, albeit with the last posting redirecting visitors to a new location on Oracle Communities. Maybe I’m getting too old for this s##t, but I’m yet to really get a handle on how Oracle want to interact with real people on the ground. Oracle Communities is a fairly new site that I’ve not explored so much because of no OBIEE area.
Jan 26, 2010
Jan 26, 2010

Identify your OBIEE users by setting Client ID in Oracle connection

You get a call from your friendly DBA. He says the production database is up the spout, and it’s “that bee eye thingumy causing it”. What do you do now? All you’ve got to go on is a program name in the Oracle session tables of “nqsserver@MYSERVER (TNS V1-V3)” and the SQL the DBA sent you that if you’re lucky will look as presentable as this: The username against the SQL is the generic User ID that you had created for connections to the database from OBIEE.
Nov 11, 2009
Nov 11, 2009

#Fail: My Oracle Support

Metalink was retired this weekend and made way for the new My Oracle Support system. It didn’t go as smoothly as it could have done. This post is going to be a bit of a rambling rant. Ultimately people, including me, don’t like their cheese being moved (not unless there’s a really runny piece of Camembert at the end of it). That makes it a bit more difficult to discuss because some of people’s complaints will just be geeks being stubborn (and boy, can geeks be stubborn).
Nov 3, 2009
Nov 3, 2009

Advanced Googling for OBIEE information

Want to find all PDFs from Oracle about OBIEE? There’s some interesting ones that this turned up on Oracle’s public FTP. In particular: BI EE Environmental and Multi-User Development Migration Processes Securing Oracle BI Enterprise Edition (There’s also PowerPoint files on there including this one but Google doesn’t seem to index them) You can use Google’s Advanced Search page to build similar queries: You can also use Google Alerts so that any time a new entry matching your search criteria is added in Google’s index you get notified of it either by email or on an RSS feed:
Oct 22, 2009
Oct 22, 2009

Troubleshooting OBIEE and ORA-12154: TNS:could not resolve the connect identifier

A frequent question on the OTN OBIEE forum is how to fix this error: [nQSError: 17001] Oracle Error code: 12154, message: ORA-12154: TNS:could not resolve the connect identifier specified at OCI call OCIServerAttach. [nQSError: 17014] Could not connect to Oracle database. The error is simply OBIEE reporting that it tried to connect from the BI Server to an Oracle database and the Oracle client returned an error. Distilling it down gives us this error:

Robin Moffatt

Robin Moffatt works on the DevRel team at Confluent. He likes writing about himself in the third person, eating good breakfasts, and drinking good beer.

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