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MPM Questions & Answers
Wed, 2012-02-01 19:47 — oli
Taxonomy upgrade extras:
Question: What is the MySQL Performance Monitor (MPM) monitoring and what data is the agent sending?
Answer: The MPM agent is gathering mainly the output of:
SHOW GLOBAL STATUS; SHOW GLOBAL VARIABLES; SHOW ENGINE INNODB STATUS;
and some data of the INFORMATION_SCHEMA and the PERFORMANCE_SCHEMA
Question: What MPM modules do you provide at the moment?
Answer: You can find a list of the provided modules here.
Lock file not being removed
I have gotten the FromDual modules and templates working on 2 of our 3 database servers. The last one, I keep getting the below errors in the FromDual log file:
3387:2013-02-05 12:55:51.296 - INFO: FromDual Performance Monitor for MySQL (0.9) run started.
3387:2013-02-05 12:55:51.297 - INFO: FromDualMySQLagent::setAgentLock
3387:2013-02-05 12:55:51.298 - WARN: Agent Lock file /tmp/FromDualMySQLagent.lock already exists.
3387:2013-02-05 12:55:51.299 - WARN: Another agent with PID 3366 (our PID is 3387) is running. We will abort now.
Are there any suggestions on how to fix this?
Thank you!