http://www.randombugs.com Just another Bastard Operator From Hell. Everything from *nix to programming Thu, 06 May 2010 14:21:46 +0000 en hourly 1 http://wordpress.org/?v=3.0 http://www.randombugs.com/linux/mysql-postgresql-benchmarks.html http://www.randombugs.com/linux/mysql-postgresql-benchmarks.html#comments Thu, 18 Jun 2009 14:25:25 +0000 admin http://www.randombugs.com/?p=458
We are living interesting times ... MySQL was first purchased by SUN and now SUN was purchased by ORACLE. I don't know what future will reserve for MySQL, but in this moment it seems MySQL is coming very very close to PostgreSQL. We are NOT talking about MySQL with MyISAM, we are talking about MySQL with InnoDB, because I'm directly interested in a set of properties what PostgreSQL already have them built-in and MySQL achieve them through InnoDB (and the new Maria Data plugin). This properties are Atomicity, Consistency, Isolation, Durability = ACID, in other words, very stable, good integrity and crash proof database. Why an ACID database? Sometimes we are more interested in ACID for our data than raw speed. For example do you keep your savings to a bank who is running a NON ACID database? I think you understand my concern. ]]> http://www.randombugs.com/linux/mysql-postgresql-benchmarks.html/feed 45 http://www.randombugs.com/linux/ora-27125-unable-to-create-shared-memory-segment.html http://www.randombugs.com/linux/ora-27125-unable-to-create-shared-memory-segment.html#comments Tue, 11 Nov 2008 09:30:51 +0000 admin http://www.randombugs.com/?p=25
This post is for the users who got this error message (ORA-27125: unable to create shared memory segment) when they try to run Oracle 10g on linux. Are 2 solutions for this problem: 1. Disable Huge TLB tables export DISABLE_HUGETLBFS=1 in shell and after just restart oracle. (Take care because you will need a lot of RAM if you disable HUGETLBFS) 2. You need to recompile your linux kernel with following options enabled CONFIG_HUGETLB_PAGE=y CONFIG_HUGETLBFS=y I hope this post will be helpful. Related Posts:How to disable the display standby on a xorg xserverSpeed up Samba under LinuxInnodb table crashCore ...]]> http://www.randombugs.com/linux/ora-27125-unable-to-create-shared-memory-segment.html/feed 1