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Tracing mysqld Using SystemTap


Tracing mysqld Using SystemTap

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Tracing mysqld Using SystemTap
Tag : mysql , By : ugufugu
Date : November 25 2020, 07:22 PM


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error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' -- Missing /var/run/mysqld


Tag : mysql , By : B3CFT
Date : March 29 2020, 07:55 AM
may help you . , To find all socket files on your system run:
sudo find / -type s
socket=/var/lib/mysql/mysql.sock
chmod 777 /var/run/mysqld/mysqld.sock

systemtap userspace function tracing


Tag : function , By : AJacques
Date : March 29 2020, 07:55 AM
With these it helps This appears to be a systemtap bug. It should print the value of b, not its address. Please report it to the systemtap@sourceware.org mailing list (with compiler/etc. versions and other info, as outlined in man error::reporting.
As to changing the script, the $$parms part is where the local variables are being transformed into a pretty-printed string. It could be changed to something like...
trace(1, $$parms . (@defined($foobar) ? (" foobar=".$foobar$) : ""))
trace(1, $$parms . (@defined($b) ? (" *b=".user_int($b)) : ""))

mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid prevent from server restart


Tag : mysql , By : Bimal Poudel
Date : March 29 2020, 07:55 AM
it should still fix some issue My mySQL server on CentOS has been working correctly, but, I am unable to restart mysqld suddenly today. , I googled around and try.
restorecon -r /var/lib/mysql

Can't find mysqld.sock: Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2 "No suc


Tag : mysql , By : Lathentar
Date : March 29 2020, 07:55 AM
wish of those help I got it! So, first I removed every trace of MariaDB with these commands:
sudo service mysql stop
sudo apt-get --purge remove "mysql*
sudo rm -rf /etc/mysql/ 
apt-get update
apt-get upgrade
apt-get install mariadb-server

Systemtap simple userspace example (function tracing, Ubuntu)?


Tag : cpp , By : Debashree
Date : March 29 2020, 07:55 AM
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