05-17-2013
Sorry, I don't have quick solutions for what I see in your files.
There are many select statements in state: locked ... Your biggest problem seems to be the storage engine - you're using MyISAM.
You should consider switching to InnoDB, but you should test the migration thoroughly. And you should upgrade to a newer version, 5.1 is may too old.
I suppose your best bet now is to activate the slow log (if I recall correctly, it's dynamic in 5.1) and try to tune your queries, to minimize the locking issue.
By the way, why you're using 2G for the InnoDB buffer pool and only 128M for your MyISAM key buffer? Do you have InnoDB tables
(not mentioned in the uploaded files)?
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LEARN ABOUT CENTOS
innochecksum
INNOCHECKSUM(1) MySQL Database System INNOCHECKSUM(1)
NAME
innochecksum - offline InnoDB file checksum utility
SYNOPSIS
innochecksum [options] file_name
DESCRIPTION
innochecksum prints checksums for InnoDB files. This tool reads an InnoDB tablespace file, calculates the checksum for each page, compares
the calculated checksum to the stored checksum, and reports mismatches, which indicate damaged pages. It was originally developed to speed
up verifying the integrity of tablespace files after power outages but can also be used after file copies. Because checksum mismatches will
cause InnoDB to deliberately shut down a running server, it can be preferable to use this tool rather than waiting for a server in
production usage to encounter the damaged pages.
innochecksum cannot be used on tablespace files that the server already has open. For such files, you should use CHECK TABLE to check
tables within the tablespace.
If checksum mismatches are found, you would normally restore the tablespace from backup or start the server and attempt to use mysqldump to
make a backup of the tables within the tablespace.
Invoke innochecksum like this:
shell> innochecksum [options] file_name
innochecksum supports the following options. For options that refer to page numbers, the numbers are zero-based.
o -c
Print a count of the number of pages in the file.
o -d
Debug mode; prints checksums for each page.
o -e num
End at this page number.
o -p num
Check only this page number.
o -s num
Start at this page number.
o -v
Verbose mode; print a progress indicator every five seconds.
COPYRIGHT
Copyright 2007-2008 MySQL AB, 2008-2010 Sun Microsystems, Inc.
This documentation is free software; you can redistribute it and/or modify it only under the terms of the GNU General Public License as
published by the Free Software Foundation; version 2 of the License.
This documentation is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with the program; if not, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or see http://www.gnu.org/licenses/.
SEE ALSO
For more information, please refer to the MySQL Reference Manual, which may already be installed locally and which is also available online
at http://dev.mysql.com/doc/.
AUTHOR
Sun Microsystems, Inc. (http://www.mysql.com/).
MySQL 5.1 04/06/2010 INNOCHECKSUM(1)