The Sysadmin’s Daily Grind: Mtop
HEALTH CHECK
It would be great if every MySQL database enjoyed perfect health 24 by 7, but unfortunately, trouble sometimes strikes. A logfile isn’t much help if you are investigating why a database is flooded with requests. Mtop to the rescue.
We looked at ApacheTop in this column not too long ago. ApacheTop is a tool that tells you what your web server is doing right now, pointing out potential bottlenecks. In this month’s column, we will be looking at another member of the top family: Mtop, the realtime monitor for MySQL [1]. The Mtop tarball weighs in at a mere 48 kbytes. It requires a few Perl modules: Curses, DBI, DBD::mysql, and Net::Domain – but you will probably have most of these installed anyway, and CPAN will fill any gaps in next to no time. After satisfying the dependencies, enter perl Makefile.PL, make, and make install in /usr/local/bin/ to complete the Mtop build. The next step is to allow Mtop access to your MySQL process information, as – in contrast to Apachetop – Mtop does not simply parse the server logfiles, but requires direct access. I decided to set up a user with extremely restricted privileges in MySQL and did not assign a password. The following SQL prompt should do the trick for version 4.0.2 or newer of MySQL: grant super, reload, U process on *.* to mysqltop; grant super, reload, U process on *.* to mysqltop@localhost; flush privileges;
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
US / Canada
UK / Australia
News
-
Deepin 23 Preview Release is Available For Testing
The developers of Deepin have made a preview release of their latest offering available with three exciting new features.
-
The First Point Release For Ubuntu 22.04 is Now Available
Canonical has released the first point upgrade for Jammy Jellyfish which includes important new toolchains and fixes.
-
Kali Linux 2022.3 Released
From the creators of the most popular penetration testing distributions on the planet, comes a new release with some new tools and a community, real-time chat option.
-
The 14" Pinebook Pro Linux Laptop is Shipping
After a considerable delay, the 14" version of the Pinebook Pro laptop is, once again, available for purchase.
-
OpenMandriva Lx ROME Technical Preview Released
OpenMandriva’s rolling release distribution technical preview has been released for testing purposes and adds some of the latest/greatest software into the mix.
-
Linux Mint 21 is Now Available
The latest iteration of Linux Mint, codenamed Vanessa, has been released with a new upgrade tool and other fantastic features.
-
Firefox Adds Long-Anticipated Feature
Firefox 103 has arrived and it now includes a feature users have long awaited…sort of.
-
System76 Refreshes Their Popular Oryx Pro Laptop with a New CPU
The System76 Oryx Pro laptop has been relaunched with a 12th Gen CPU and more powerful graphics options.
-
Elive Has Released a New Beta
The Elive team is proud to announce the latest beta version (3.8.30) of its Enlightenment-centric Linux distribution.
-
Rocky Linux 9 Has Arrived
The latest iteration of Rocky Linux is now available and includes a host of new features and support for new architecture.