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resolution_area:prometheus_resolutions:res-p1703
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| resolution_area:prometheus_resolutions:res-p1703 [2021/06/24 15:15] – btobin | resolution_area:prometheus_resolutions:res-p1703 [2021/07/05 16:02] (current) – wflaherty | ||
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| + | ===== MysqlHighThreadsRunning ===== | ||
| + | |||
| + | **Level:** Warning | ||
| + | |||
| + | |||
| + | **Purpose: | ||
| + | This alert is to ensure that the applications aren't doing to much with the Database at the same time. If a thread is slow or stuck in a running state then we must investigate. | ||
| + | |||
| + | **Scenario: | ||
| + | |||
| + | **Resolution: | ||
| + | Start investigating by connecting to the server and running the following query: | ||
| + | |||
| + | < | ||
| + | SHOW PROCESSLIST; | ||
| + | </ | ||
| + | |||
| + | If there are many query that are trying to read from the database for the reporting manager or a search application then you may have to cancel some of these. | ||
| + | Generally, this isn't necessary unless there are other problems being caused because of this. If something was stuck, the you will likely be dealing with a long running query rather than pile of queries at once. | ||
| + | |||
| + | **Manual Action Steps:** | ||
| + | < | ||
| + | SHOW PROCESSLIST; | ||
| + | </ | ||
| + | |||
| + | If there is an application that is erroniously hammering the database with queries and requests then you may have to ask operations and the dev team about stopping the application. | ||
| + | |||
| + | **Auto Clear:** | ||
| + | This will clear once less than 60% of the connections to the server are active | ||