Basic solutions (CLI). Those solutions are run from the command line (CLI). Sprache English. tags: Performance Tuning · mysql · monitoring · performance. MyTop stellt eine Auswahl von großformatigen Platten mit einer Stärke von 12 und 20 mm zusammen, die das Konzept des W. Top-ähnlicher Abfrage-Monitor für MySQL. MySQL ist ein Konsole-basiertes Programm zur Beobachtung von Abfragen und die MySQL-Performanz.
Paket: mytop (1.9.1-4)mytop wurde in Perl geschrieben und ist unter anderem auch für FreeBSD sowie Solaris erhältlich. Alternativen sind in den eher unbekannten Tools mtop und. Der Shell-Befehl mytop ist ein Statusmonitor für Mysql-Datenbankserver und zeigt in periodischem Abstand die Informationen der beiden. Basic solutions (CLI). Those solutions are run from the command line (CLI). Sprache English. tags: Performance Tuning · mysql · monitoring · performance.
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Es Mytop dabei um progressive Mytop handelt. - NavigationsmenüEs ist auch ein Ausgangspunkt, um problematische SQL-Abfragen zu finden und zu optimieren, wodurch Pferdewetten Gesamtleistung des Servers erhöht wird.
The above display screen is broken into two parts. The header contains summary information about your MySQL server.
The first line identifies the hostname of the server and the version of MySQL it is running. The second line displays the total number of queries the server has processed in our case , the average number of queries per second, the number of slow queries, and the percentage of Select, Insert, Update, and Delete queries.
The third line shows real-time values since last mytop refresh. The normal refresh delay time for mytop is 5 seconds, so if queries were run in the last 5 seconds since the refresh, then the qps now number would be The first field is the number of queries per second qps now: 2.
The second value is the number of slow queries per second. The last field in the third line shows the query percentages, like in the previous line, but since last mytop refresh.
The fourth line displays key buffer efficiency how often keys are read from the buffer rather than disk and the number of bytes that MySQL has sent and received, both overall and in the last mytop cycle.
Key Efficiency: 2. The second part of the display lists current MySQL threads, sorted according to their idle time least idle first.
You can reverse the sort order by pressing O if needed. The thread id, username, host from which the user is connecting, database to which the user is connected, number of seconds of idle time, the command the thread is executing or the state of the thread , and first part of the query info are all displayed here.
If the thread is in a Query state i. Cmd displays Query then the next column Query or State will show the first part of the query that is being run.
If the command state is Sleep or Idle then the Query or State column will usually be blank. In our example output above, thread with id 2 is actually mytop running the show processlist query to collect information.
The thread with id 16 is sleeping not processing a query, but still connected. Now that we have understood the basic display of mytop, we will see how to use it to collect more information on the MySQL threads and queries.
Let us take a look at the following mytop display:. In the mytop thread view default view shown above, the queries are truncated.
To view the entire query, you can press F , and it will ask:. Enter the thread id for the query you want to see.
For example, enter Then it will show the following:. We can type e to explain the query. This will explain the query that is being run so that we can figure out if the query is optimized.
For example:. You can press any key to exit this mode or type t to go back to the default thread view. Another useful view available in mytop is the command view.
To access command view, type c. It will look similar to the following:. The Command column shows the type of command or query being run.
The Total column stands for the total number of that type of command run since the server started, and the Pct column shows the same in percentage.
On the other side of the vertical line we have the Last column which tells us the number of that type of command run since the last refresh of mytop.
This information gives us insight into what the MySQL server is doing in the short term and the long term. We have discussed some of the important and useful features of mytop in this tutorial.
There are many others available. To view a complete list of options, you can press the? You should now have a good understanding of how to use mytop to monitor your MySQL server.
It is also a starting point to finding problem SQL queries and optimizing them, thus increasing the overall performance of the server.
You can get more information on how to optimize MySQL queries and tables on your server in this tutorial. Where would you like to share this to?
Twitter Reddit Hacker News Facebook. Share link Tutorial share link. Sign Up. DigitalOcean home. Community Control Panel. If you would like to monitor specific database, then use the -d option as shown below.
For example the below command will monitor database tecmint. If each of your databases has a specific admin for example tecmint database admin , then connect using the database username and password like so.
This file can be viewed later on by an unauthorized person who might land on the username and password. Another advantage of this method is that you also do away with typing numerous command-line arguments each time you want to run mytop.
In this article, we have explained how to install, configure and use mytop in Linux. If you have any questions, use the feedback form below to reach us.
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On Ubuntu The following additional packages will be installed: default-mysql-client mysql-client Need to get kB of archives. After this operation, Do you want to continue?
Hi, from Costa Rica. We have a server in Debian 9 and a database MariaDB. Actually, mytop is not under development and the last release was in , due to this mytop is not included in the latest release of Debian and Ubuntu.
If you still want to install, you can compile it from the source using the following commands. Thanks, Ravi. Another tool instead of mytop?.
Even I have installed required dependency — perl Term::ReadKey. Navin, It seems the perl-Term-ReadKey package having issue with mytop package, better remove that package and try to yum mytop again and see..
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