First you must determine if the file descriptors are set too low or the agent is having trouble reading the value.
Open a terminal and log into the OS as the user that starts the application server where the agent is installed.
Run the following two commands:
ulimit -n -H
ulimit -n -S
If either of these values is at or below 4096, have your system admin adjust the values.
DevTest recommends 32,000 or higher.
Agent cannot read values:
Also if lines similar to these are present at the beginning of the agent's log, you will need to adjust the rules.xml in the agent directory.
Note: if the rules.xml file is not present, copy the rules.xml from the DevTest Install directory.
exec (/bin/sh -c "ulimit -n -H"): java.iio.IOException: java.io.IOException: error=2, No such file or directory
Please set the property HANDLES_MAX to the value of ulimit -n -H on this machine
Add this line to the "Default" agent section:
<property comment="Keeps track of max file descriptors on Unix - set to -1 for discovery (ulimit) or manually if ulimit is not accessible" key="lisa.agent.handles.max" value="-1"/>
Note: Change the -1 to the correct number of file descriptors.
Restart the application server.