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Category: Oracle
May 14
Recovery Requirements Before Backups
All too often, I see people asking questions about backup strategies they should employ for their databases. It never seems to fail, every question of this sort that I have come across in a variety of forums never once includes their recovery requirements. I have often stumped for considering your recovery requirements before designing your …
Apr 30
Error 404 Not Found with EM 12c
I have recently installed Oracle’s Enterprise Manager 12c for a new environment. Everything was working just fine when I left work last week but when I tried to connect to EM today, I got the following: Error 404–Not Found From RFC 2068 Hypertext Transfer Protocol — HTTP/1.1: 10.4.5 404 Not Found Huh?!?!? What do you …
Apr 30
_gc_fusion_compression
I found this very cool blog post which discusses how Oracle decides how much of a datablock to transmit across a RAC cluster interconnect: http://orainternals.wordpress.com/2012/04/29/_gc_fusion_compression/ Get the right amount of low cost levitra exercise.Getting adequate exercise is important for informing and using protection. The Recommended Dosage of Kamagra Jelly Kamagra Jelly may outcome with austere …
Apr 26
Blackouts with EMCLI
In my previous post, I talked about how to set a Enterprise Manager blackout with the Agent’s emctl utility on the command line. Everything was working fine until I tried to set a blackout with a clustered database. When trying to set a blackout on a clustered database target you will get an error similar …
Apr 23
Patch Policy
About a year and a half ago, I moved to a new company and started working as their DBA. The company did not previously apply any patches to any Oracle databases. Since I have been here, I have seen IT system security become more of a focus point and undergo a higher level of scrutiny …
Jan 19
Agent Is Blocked
I recently upgraded a database from Oracle 10.2.0.3 to Oracle 11.2.0.2. Everything went well. Some time after the upgrade, Grid Control 11g sent me an alert with the following: Agent is blocked. Blocked reason is: Agent is out-of-sync with repository. This most likely means that the agent was reinstalled or recovered. Please contact an EM …
Jan 03
Error Adding Standby
I have been trying to create a Standby database from a new Primary that was recently put into production. I like how Grid Control automates much of the work for me. So Enterprise Manager is my preferred method. I recently ran into a problem using the Add Standby Database wizard in my 11g Grid Control. …
Dec 13
Brand New Production Database
Every once in a while, no matter which company I work for, I am asked to set up a new production database. I was working on this very task today when I started thinking about how much work it was to create a brand new database in that past, how much the DBCA handles for …
Dec 12
Wait Event: asynch descriptor resize
In my recently upgraded production database, I am seeing a number of SQL statements that are now experiencing high waits on the “asynch descriptor resize” event. I recently upgraded from 11.1.0.7 to 11.2.0.2 and SQL statements that never waited on this event are now getting caught. Oracle 11.2 slightly changed the way the database and …
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@sacrophyte That was an old recommendation which is probably out of date now. When I look at the 19c doc for that p… https://t.co/h0VwGJECvH
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Also in that note is "We decided to not promote our Database 20c Preview version to General Availability. Instead,… https://t.co/bvUcRKQ9gt
