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  1. stackoverflow.com

    MySQL: ERROR 1040: Too many connections This basically tells that MySQL handles the maximum number of connections simultaneously and by default it handles 100 connections simultaneously. These following reasons cause MySQL to run out connections.
  2. rathishkumar.in

    MySQL pre-allocate memory for each connections and de-allocate only when the connection get closed. And, when new connections are querying, system should have enough resources such memory, network and computation power to satisfy the user requests.
  3. hoststud.com

    Your website is simply receiving too many connection requests and the server is failing to cope up with the demand. To fix the error, we have to first tweak the max_connection system variable. So identity the max_connection variable with the following command:
  4. dba.stackexchange.com

    The global variable max_connections determines the maximum number of concurrent connections to MySQL. Make sure that you have a high value for this variable. You can increase this value to 300 or 400 and try restarting MySQL after this settings. Design your application such that a MySQL connection is kept open for a very short period of time.
  5. A pretty common topic in Support tickets is the rather infamous error: ERROR 1040: Too many connections. The issue is pretty self-explanatory: your application/users are trying to create more connections than the server allows, or in other words, the current number of connections exceeds the value of the max_connections variable.
  6. If you run a fairly busy and/or badly configured MySQL server, you may receive something like this when attempting to connect: # mysql ERROR 1040: Too many connections. MySQL is telling you that it is handling the maximum connections that you have configured it to handle. By default, MySQL will handle 100 connections simultaneously.
  7. stackoverflow.com

    Because your Model class instantiates a new Database object in its constructor, each time you instantiate a Model (or any class extending it), you are in effect opening a new database connection. If you create several Model objects, each then has its own independent database connection, which is uncommon, usually unnecessary, not a good use of resources, but also actively harmful as it has ...
  8. stackoverflow.com

    I have this error, I have seen on several pages how to fix it, increasing the max connections variable, but I was wondering if there is any way to retry connecting 'n' number of times before throwing that error, I am using mysqli to create my connection.
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  1. MySQL: ERROR 1040: Too many connections

    This basically tells that MySQL handles the maximum number of connections simultaneously and by default it handles 100 connections simultaneously.

    These following reasons cause MySQL to run out connections.

    1. Slow Queries

    2. Data Storage Techniques

    3. Bad MySQL configuration

    I was able to overcome this issues by doing the followings.

    Open MySQL command line tool and type,

    show variables like "max_connections";

    This will return you something like this.

    +-----------------+-------+
    | Variable_name   | Value |
    +-----------------+-------+
    | max_connections | 100   |
    +-----------------+-------+

    You can change the setting to e.g. 200 by issuing the following command without having to restart the MySQL server.

    set global max_connections = 200;

    Now when you restart MySQL the next time it will use this setting instead of the default.

    Keep in mind that increase of the number of connections will increase the amount of RAM required for MySQL to run.

    --Du-Lacoste

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