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Top Forums UNIX for Advanced & Expert Users Nearly Random, Uncorrelated Server Load Average Spikes Post 303044099 by Neo on Thursday 13th of February 2020 04:44:46 PM
Old 02-13-2020
Thanks for the suggestion.

I was sitting at my desk with another spike occurred and there were no unusual or phantom processes popping up.

MySQL remained at the top of the CPU utilization with, followed by apache2, so I'm starting to believe something is going on with MySQL which is causing the spikes.

Since most of the MySQL tables get mostly reads compared to writes, MyISAM is faster for these "mostly reads", according to what I have read, so I have not changed any off the busy tables to INNODB.

Maybe that is the issue?

But I am hesitant to experiment with changing MYISAM tables to INNODB unless there is clear evidence that altering these tables from MYISAM to INNODB will not create more problems (slowing the DB down), than the 5 or 6 one minute spikes per day.
 

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MYISAMLOG(1)						       MySQL Database System						      MYISAMLOG(1)

NAME
myisamlog - display MyISAM log file contents SYNOPSIS
myisamlog [options] [log_file [tbl_name] ...] DESCRIPTION
myisamlog processes the contents of a MyISAM log file. Invoke myisamlog like this: shell> myisamlog [options] [log_file [tbl_name] ...] shell> isamlog [options] [log_file [tbl_name] ...] The default operation is update (-u). If a recovery is done (-r), all writes and possibly updates and deletes are done and errors are only counted. The default log file name is myisam.log for myisamlog and isam.log for isamlog if no log_file argument is given. If tables are named on the command line, only those tables are updated. myisamlog supports the following options: o -?, -I Display a help message and exit. o -c N Execute only N commands. o -f N Specify the maximum number of open files. o -i Display extra information before exiting. o -o offset Specify the starting offset. o -p N Remove N components from path. o -r Perform a recovery operation. o -R record_pos_file record_pos Specify record position file and record position. o -u Perform an update operation. o -v Verbose mode. Print more output about what the program does. This option can be given multiple times to produce more and more output. o -w write_file Specify the write file. o -V Display version information. 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 MYISAMLOG(1)
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