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Re: How many connections are possible with Aiven for MySQL?
Posted by: Lisa Vielchen
Date: November 24, 2020 11:23AM

By connections, do you mean those that occur simultaneously? Because that is a bit difficult to answer.
The maximum number of concurrent connections in Aiven for MySQL depends on the total memory on the server.
In Aiven, as far as I know, 75 connections are allowed per 1 gibibyte of usable memory. -> Usable memory = total memory of the node - operating system and management overhead (about 350 mebibytes).
For example, if a server has 4 gibibibytes of memory, you get 75 * 4 = 300 connections maximum.
You should note that the setting in MySQL max-connections is always set 1 higher (in the example in this case 301 connections max). This is because normally there is always a system process that needs one of the connections. More information can be found on the official site:

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Re: How many connections are possible with Aiven for MySQL?
November 24, 2020 11:23AM

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