Tracing initialization and configuration

It is possible to enable a tracing mechanism which helps you to identify the deployment problem you might have. This can be enabled using the MYARM_TRACE environment variable. For a detailed description of the options please see Appendix Environment .

Some transactions are missing

MyARM limits its resource usage (memory) in order to work properly, even if the instrumented application uses the ARM API incorrectly. Therefore it is possible that some transaction measurements are missing due to resource shortage. If more transaction response time measurements are active at a time than the number of configured transaction instances, some response time measurements are dropped. This situation is logged with ARM DATA DROPPED log message to notify about the lost data.

The ARM data buffer pool size (basic.armdata.buffer.pool.size) and the size of each ARM data buffer (basic.armdata.buffer.size) can be configured (See ARM data buffer configuration ).

MySQL database creation failed

To minimize the efforts to setup all necessary databases and tables for the MyARM agent when using a MySQL server to store ARM data, the program myarminitdb is provided. If the MySQL server is not setup correctly it is possible that the myarminitdb fails to create the needed databases and tables. Be sure that you have the right permissions for creating databases and tables.

someuser@localhost: mysql -u root
GRANT ALL PRIVILEGES ON *.* TO 'someuser'@'localhost';

Note that you need root privileges to change the privileges of databases.