Top-ähnlicher Abfrage-Monitor für MySQL. MySQL ist ein Konsole-basiertes Programm zur Beobachtung von Abfragen und die MySQL-Performanz. Basic solutions (CLI). Those solutions are run from the command line (CLI). Sprache English. tags: Performance Tuning · mysql · monitoring · performance. mytop ist ein prima Werkzeug, um seinen MySQL-Server zu überwachen. Es bietet Daten zu aktuell ausgeführten Abfragen, Performance.
mytop – Übersichtliche Analyse der aktuellen MySQL-VorgängeDer Shell-Befehl mytop ist ein Statusmonitor für Mysql-Datenbankserver und zeigt in periodischem Abstand die Informationen der beiden. MyTop stellt eine Auswahl von großformatigen Platten mit einer Stärke von 12 und 20 mm zusammen, die das Konzept des W. mytop wurde in Perl geschrieben und ist unter anderem auch für FreeBSD sowie Solaris erhältlich. Alternativen sind in den eher unbekannten Tools mtop und.
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The default is to show idle threads. If idle threads are omitted, the default sorting order is reversed so that the longest running queries appear at the top of the list.
You can refer the manual pages of mytop for information on all the parameters in the configuration file — it contains a description of each parameter.
To access the manual page, use the command:. Mytop requires credentials to access the database, which can be provided via a prompt, on the command line, or stored in the configuration file.
For better security, we will use the --prompt option to mytop, which asks for the password each time. Let us connect to mytop using:.
You can also use several command line arguments with the mytop command. Please refer the manual page for the complete list.
For example, if you want to use a different mysql user such as sammy to connect to mytop, run the command:. In this section, we will see how to interpret mytop display and the different features offered by the tool.
Once we connect to mytop using mytop --prompt we will be taken to the thread view. It will show something similar to:. 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.
In this MySQL monitoring tutorial, we will show you how to install, configure and use mytop on various Linux distributions. To install Mytop , run the appropriate command below for your Linux distribution to install it.
This will connect to the test database by default. 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?.It will look similar to the following:. Step 2 — Configuring Hearthstone Esport Before using mytop, create a customized configuration file for mytop named. You can reverse the sort order by pressing O if needed. Community Control Panel. Hi there. My answer is an emphatic YES, I still am thoroughly enjoying my MYTOP, now three years old. It's finally warm in NE Ohio, and we just dropped the top for the first time since Fall or The myTop is the world’s one and only powered convertible Jeep® top. Available for the 2 door and 4 door Wrangler, myTop offers all season warm, all season quiet, and the most economical solution for your Jeep®. Custom-printed topographic (topo) maps, aerial photos, and satellite images for the United States and Canada. Available for both 2-door and 4-door, the Jeep myTop is the most quiet, comfortable, fuel-saving top for your Jeep Wrangler. As insulated and quiet as a hard top while offering all the versatility of a soft top, the myTop is the perfect Jeep top for all climates. myTop Maroon Creek Road, No. 6 Aspen, Colorado () myTop is a federally and internationally registered trade mark and trade name of Ingenious Designs, LLC., as well as its registered "d/b/a".
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