MySQL Bugs: #45884: log version on agent start up and possibly shut down

Bug #45884	log version on agent start up and possibly shut down
Submitted:	1 Jul 2009 16:00	Modified:	21 Jul 2009 9:37
Reporter:	Marcos Palacios	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Enterprise Monitor: Agent	Severity:	S3 (Non-critical)
Version:	2.1.0.1067	OS:	Any
Assigned to:	Kay Roepke	CPU Architecture:	Any

Description:
You do not log the version of the agent when it starts. This seems to be a mistake as it ensures that the information is visible and obvious. I would also recommend that you show the same information when you shutdown the agent since it may run for a long time and this information may no longer be in the log files.

Copied from http://bugs.mysql.com/bug.php?id=45459 specifically for the MEM Agent.

How to repeat:
- start or stop the agent
- check the agent log

Suggested fix:
Add the information to the agent log file during start up and shut down.

Marcos Palacios writes: 
Comment from Kay:
The agent already logs it's version number on startup, although not on the default log level.
I'm opposed to also log it on shutdown, since even rotating the logs should not remove any logs.

For the agent the --version flag will show the version number:
./bin/mysql-monitor-agent --version

Marcos Palacios writes: 
Comment from Kay:
The agent already logs it's version number on startup, although not on the default log level.
I'm opposed to also log it on shutdown, since even rotating the logs should not remove any logs.

For the agent the --version flag will show the version number:
./bin/mysql-monitor-agent --version

Marcos Palacios writes: 
Comments:
This feature is available with "log-level=debug" in <inst-dir>/etc/mysql-monitor-agent.ini. It shows these lines:
2009-07-01 11:33:43: (message) mysql-proxy 0.7.0 started
2009-07-01 11:33:43: (message) MySQL Monitor Agent 2.1.0.1067 started.

Resolution:
Verified fixed in agent build 2.1.0.1067.

Marcos Palacios writes: 
Comments:
This feature is available with "log-level=debug" in <inst-dir>/etc/mysql-monitor-agent.ini. It shows these lines:
2009-07-01 11:33:43: (message) mysql-proxy 0.7.0 started
2009-07-01 11:33:43: (message) MySQL Monitor Agent 2.1.0.1067 started.

Resolution:
Verified fixed in agent build 2.1.0.1067.

The information is available on log level "message", in the service manager dashboard and from running mysql-monitor-agent --version.
Per request it will be logged on log level "critical" at startup in the future.

Keith Russell writes: 
Patch applied in versions => 2.1.0.1074.

Marcos Palacios writes: 
Verified fixed in agent build 2.1.0.1074.

2009-07-07 16:55:08: (critical) MySQL Monitor Agent 2.1.0.1074 started.

An entry has been added to the 2.1.0 changelog:

The Agent did not write its version number to the log on startup or shutdown.

The information is now available by setting log level “MESSAGE” in the Dashboard. It is also available when running the Agent from the command line with the command mysql-monitor-agent --version. The Agent also now logs its version number on startup if the log level is set to “CRITICAL”.