Stages Documentation

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75:system_requirements_mysql [2020/06/09 11:15] – ndn75:system_requirements_mysql [2020/06/26 15:50] – emr
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 ====== MySQL Requirements ====== ====== MySQL Requirements ======
 +
 +===== Native MySQL installation =====
  
 Stages supports MySQL 5.7 and 8.0 Community Editions. Stages supports MySQL 5.7 and 8.0 Community Editions.
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 The transaction isolation must be set to "READ-COMMITTED" in my.cnf. The transaction isolation must be set to "READ-COMMITTED" in my.cnf.
  
-Increase the "innodb_lock_wait_timeout" system variable when you encounter "Lock wait timeout exceeded" errors.+Increase the "innodb_lock_wait_timeout" system variable to something larger than 50 seconds (which is the default value) when you encounter "Lock wait timeout exceeded" errors.
  
 Stages uses the INNODB engine. This can have impact on the server backup strategy, because INNODB files tend to become very large. Stages uses the INNODB engine. This can have impact on the server backup strategy, because INNODB files tend to become very large.
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 The Windows 7 search feature causes the same kind of problems as a virus scanner. Please disable this feature on the Stages server. The Windows 7 search feature causes the same kind of problems as a virus scanner. Please disable this feature on the Stages server.
 +
 +===== Azure MySQL DB =====
 +
 +For installing Stages with the Azure MySQL DB, all of the above applies as well.
 +
 +In addition, the l''og_bin_trust_function_creators'' parameter of Azure MySQL DB must be set to 1. See [[https://stackoverflow.com/questions/11601692/mysql-amazon-rds-error-you-do-not-have-super-privileges|here for more info]].
 +
 +The connection timeout for Azure MySQL DB might be set very low. If you see connection errors after a while, you should set the connection timeout for Stages to 100 seconds via<code>
 +
 +torque.database.default.expiryTime=100000
 +
 +</code>
 +
 +in ''database.properties''.