Re: [Xen-users] mysql

["Fajar A. Nugraha" <fajar@xxxxxxxxxxxxx>]

Steven Yelton wrote:

> I just installed the latest mysql packages on a non xen server and had 
> the same problem.  I copied the start script from another installation 
> and it worked.  (A diff showed no differences, a co-worker told me the 
> script was haunted).  Can you run 'mysqld_safe' from the command line 
> successfully?
> Here is my init.d script that worked:
> http://dropoff.org/29rc/mysql
"Haunted script" ? :))
I don't know what your environment is, but if You're using RHEL4, FC3,
CentOS, or something newer, the bundled MySQL (or to be specific :
MySQL's BDB engine) requires glibc to have NPTL support. Removing
/lib/tls effectively disables NPTL, which results in MySQL failed to start.

You can work around this problem by adding "skip-bdb" to your
/etc/my.cnf, or /var/lib/mysql/my.cnf, or any other config file and
startup script that MySQL reads during startup.

A better solution, in my oppinion, is to use Xen-specific glibc
<http://wiki.xensource.com/xenwiki/XenSpecificGlibc>. This will solve
MySQL, DB4, and other problems caused by NPTL glibc.

Regards,

Fajar

> Mark Olliver wrote:
>
> > Hi,
> >
> > Just want to do a quick check before I spend hours debugging a 
> > problem. I have xen running and on the virtual server I have just 
> > installed the latest rpm from Centos (the guest and main os) from 
> > mysqld. When I went to start it, it fall over and give no error.
> > Any ideas, do I need to do anything extra for the xen platform, I 
> > presume not
> > Mark


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