Andrew,
----- Original Message -----
From: "Andrew Morton" <[email protected]>
To: "Heikki Tuuri" <[email protected]>
Cc: <[email protected]>
Sent: Sunday, August 03, 2003 12:27 PM
Subject: Re: 2.6.0-test2-mm3 and mysql
> "Heikki Tuuri" <[email protected]> wrote:
> >
> > What to do? People who write drivers should run heavy, multithreaded
file
> > i/o tests on their computer using some SQL database which calls
fsync(). For
> > example, run the Perl '/sql-bench/innotest's all concurrently on MySQL.
If
> > the problems are in drivers, that could help.
>
> Well there's a problem. We're kernel people, not database people. I, for
> one, would not have a clue how to set such a thing up.
>
> If someone could prepare a simple-enough-for-kernel-people description of
> how to get such a test up and running, then we might make some progress.
ok :).
1. Download
from http://www.mysql.com/downloads/mysql-4.0.html:
MySQL-server-VERSION.i386.rpm The MySQL server. You will need this unless
you only want to connect to a MySQL server running on another machine.
Please note that this package was called MySQL-VERSION.i386.rpm before MySQL
4.0.10.
MySQL-client-VERSION.i386.rpm The standard MySQL client programs. You
probably always want to install this package.
MySQL-bench-VERSION.i386.rpm Tests and benchmarks. Requires Perl and the
DBD-mysql module.
MySQL-shared-compat-VERSION.i386.rpm This package includes the shared
libraries for both MySQL 3.23 and MySQL 4.0. Install this package instead of
MySQL-shared, if you have applications installed that are dynamically linked
against MySQL 3.23 but you want to upgrade to MySQL 4.0 without breaking the
library dependencies. This package is available since MySQL 4.0.13.
(these are named 'Dynamic client libraries (including 3.23.x libraries)' on
the download page).
Do NOT use the MySQL distro which comes with Red Hat distros. It is old and
may not be properly built. Only use binaries downloaded from http://www.mysql.com.
2. Install with
shell> rpm -i MySQL-server-VERSION.i386.rpm MySQL-client-VERSION.i386.rpm
etc.
3. I am assuming that you have Perl which comes in most Linux distros. You
probably also have the MySQL DBI/DBD module in your Linux distro. It will
use those MySQL-shared-compat client libraries.
http://search.cpan.org/author/JWIED/DBD-mysql-2.1026/lib/DBD/mysql/INSTALL.pod:
"
Red Hat Linux
As of version 7.1, Red Hat Linux comes with MySQL and DBD::mysql. You need
to ensure that the following RPM's are installed:
mysql
perl-DBI
perl-DBD-MySQL
"
If you do not have DBI/DBD, you have to resort to
http://www.mysql.com/downloads/api-dbi.html.
4. The rpm installation should now have the mysqld daemon running and mysqld
etc. placed in a bin dir (probably /usr/bin). You can shut it down with
mysqladmin shutdown
You can start it again with
mysqld
it should print something like:
"
030803 13:13:48 InnoDB: Started
mysqld: ready for connections.
Version: '4.0.14-debug-log' socket: '/home/heikki/MySQLheikki' port: 3307
"
(If something went wrong in the grants table creation, it will complain it
cannot find the 'host.frm' file. In that case refer to
http://www.mysql.com/doc/en/Post-installation.html about the script
mysql_install_db.)
The 'datadir' of MySQL is typically /var/lib/mysql. Under it is the actual
database data.
To connect to the database from a console, type
mysql test
mysql> show databases;
...
mysql> exit
5. To run Perl tests, go to the sql-bench directory (typically under
/usr/local/mysql) and:
perl innotest1
perl innotest1a
perl run-all-tests --create-options=type=innodb
etc.
You should run all innotests concurrently.
mysqld should not crash or print anything. The Perl tests themselves print
quite a lot as they test deadlocks etc.
We are testing a Pogo Linux server with a Red Hat 2.4.20 kernel,
http://www.mysql.com/press/release_2003_20.html, and so far that combination
seems to work ok.
Greetings to Linus! I hope you are having a good time at OSDL!
Heikki
On 3 August 2003 13:43, Heikki Tuuri wrote:
> > Well there's a problem. We're kernel people, not database people. I, for
> > one, would not have a clue how to set such a thing up.
> >
> > If someone could prepare a simple-enough-for-kernel-people description of
> > how to get such a test up and running, then we might make some progress.
>
> ok :).
>
> 1. Download
[4 screenfuls snipped]
That's a hell of a setup work, and kernel folks will always get slightly
different setups. Can database folks make a fully configured chrootable
tarball for mysql stress testing?
--
vda