Error 1040 Mysql
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Mysql Error 1040 Too Many Connections
Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, mysql error 1045 helping each other. Join them; it only takes a minute: Sign up mySQL Error 1040: Too Many Connection up vote 7 down vote favorite How to fix these, "SQL Error 1040: Too Many Connection" even I try to
Mysql Error 1203
put max_user_connection=500 still "Too many connection" mysql connection share|improve this question edited Jan 15 '13 at 4:30 asked Jan 15 '13 at 4:08 kelvzy 911317 add a comment| 5 Answers 5 active oldest votes up vote 6 down vote You have to change max_connections to increase total permitted connections. And set max_user_connections back to default 0 => no limit unless you need to limit this per user connections. MySQL Too many connections share|improve this answer answered mysql too many connections solution Jan 15 '13 at 5:01 Sir Rufo 10.7k21845 add a comment| up vote 6 down vote If you are running out of connections like this, chances are excellent that you are not closing the connections that you have open. Review code that opens connections and ensure the connections are closed as soon as practical. Typically you want to make use of the using keyword around anything that implements IDisposable (including database connections) to ensure that such objects are disposed as soon as they leave the scope where they are needed. You can check the current number of active connections with this query: show processlist Reference: MySQL show status - active or total connections? share|improve this answer edited Jul 24 '15 at 16:35 answered Jan 15 '13 at 4:10 Eric J. 105k36218401 after all my codes at the end of the query I always close the connection... this error only appears when I open another computer or my program –kelvzy Jan 15 '13 at 4:18 but does it actually get closed? exceptions can cause close to be skipped –Darren Kopp Jan 15 '13 at 4:20 yes. when we used 2-20 computer it works properly but when we add 30 more error 1040 occur –kelvzy Jan 15 '13 at 4:32 1 In that case I agree with @SirRufo that the server-side connect
12 Comments If you run a fairly busy and/or badly configured MySQL server, you may receive something like this when attempting to connect: XHTML # mysql ERROR 1040: Too many connections 12 # mysqlERROR 1040: Too many connections MySQL is telling you that it
Mysql Too Many Connections Fix
is handling the maximum connections that you have configured it to handle. By default, MySQL will
Mysql Error Too Many Connections Fix
handle 100 connections simultaneously. This is very similar to the situation when Apache reaches the MaxClients setting. You won't even be able to connect mysql too many connections flush to MySQL to find out what is causing the connections to be used up, so you will be forced to restart the MySQL daemon to troubleshoot the issue. What causes MySQL to run out of connections? Here's a list of reasons http://stackoverflow.com/questions/14331032/mysql-error-1040-too-many-connection that may cause MySQL to run out of available connections, listed in order of what you should check: Bad MySQL configuration Verify that you have set MySQL's buffers and caches to appropriate levels for the type of data you're storing and the types of queries that you are running. One quick way to check this information is via MySQLTuner. The script will tell you how well your server is performing along with the corrections you should make. Running the script only takes https://major.io/2008/06/24/mysql-error-1040-too-many-connections/ a few moments and it doesn't require a DBA to decipher the results. Data storage techniques Remember that MySQL works best when moving vertically, not horizontally. If you have a table with 20 columns, breaking it into two tables with 10 columns each will improve performance. Even if you need to join the two tables together to get your data, it will still perform at a higher level. Also, use the right data types for the right data. If you're storing an integer only, don't use a CHAR or VARCHAR data type. If your integer will be small, then use something like a TINYINT or SMALLINT rather than INT. This means MySQL will use less memory, pull less data from the disk, and have higher performing joins. Slow queries These are generally pretty easy to fix. If you have queries that don't use indexes, or if queries run slowly with indexes in place, you need to rethink how you're pulling your data. Should your data be split into multiple tables? Are you pulling more data than you need? Keep these questions in mind, enable the slow query log, and re-work your queries to find where the bottlenecks occur. Division of labor Most people who use MySQL have a dynamic site written in a scripting language, like PHP, Perl or Python. It's obvious that your server will need to do some work to parse the scripts, send data back to the client, and communic
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