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pvv-nixos-config/hosts/ildkule/services/metrics/dashboards/mysql.json
oysteikt 34a16149f8 ildkule: add config for prometheus_mysqld_exporter 
There's a PR waiting to add this module to nixpkgs,
so we should enable this once it gets merged.
2023-07-10 00:06:27 +02:00

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"step": 20
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"intervalFactor": 1,
"legendFormat": "Created Tmp Files",
"metric": "",
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"title": "MySQL Temporary Objects",
"description": "MySQL Temporary Objects",
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"x": 12,
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"height": "250px",
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"description": "**MySQL Slow Queries**\n\nSlow queries are defined as queries being slower than the long_query_time setting. For example, if you have long_query_time set to 3, all queries that take longer than 3 seconds to complete will show on this graph.",
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"title": "Aborted",
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"description": "**Aborted Connections**\n\nWhen a given host connects to MySQL and the connection is interrupted in the middle (for example due to bad credentials), MySQL keeps that info in a system table (since 5.6 this table is exposed in performance_schema).\n\nIf the amount of failed requests without a successful connection reaches the value of max_connect_errors, mysqld assumes that something is wrong and blocks the host from further connection.\n\nTo allow connections from that host again, you need to issue the ``FLUSH HOSTS`` statement.",
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"description": "**Table Locks**\n\nMySQL takes a number of different locks for varying reasons. In this graph we see how many Table level locks MySQL has requested from the storage engine. In the case of InnoDB, many times the locks could actually be row locks as it only takes table level locks in a few specific cases.\n\nIt is most useful to compare Locks Immediate and Locks Waited. If Locks waited is rising, it means you have lock contention. Otherwise, Locks Immediate rising and falling is normal activity.",
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"links": [
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"title": "Detailed descriptions about metrics",
"url": "https://www.percona.com/doc/percona-monitoring-and-management/dashboard.mysql-overview.html#mysql-internal-memory-overview"
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