[jboss-user] [Performance Tuning] - Thread creation impacts performance - SNMP stack

[dpocock]

When an SNMP stack is used to send queries to remote SNMP agents, JBoss slows down.  This is particularly severe when SNMP GetNext is used to browse a process table or other large table.

Various SNMP stacks, including the joeSNMP bundled with JBoss, and Westhawk SNMP stack, rely on thread creation.  Usually there is a listening thread and a sending thread (for retries).  These threads run in parallel to the main application.

J2EE prohibits arbitrary creation of threads.  The various SNMP stacks do not create threads in a way that is safe for J2EE/JBoss.

In a typical `management station' application, a J2EE timer bean is used to send an SNMP get at regular intervals.  E.g., every 60 seconds, an `SNMP Get' request is sent to discover the temperature reading of an external device. 

What is the recommended way of implementing this application safely in the J2EE/JBoss environment?  Is the joeSNMP stack bundled with JBoss modified to perform this function safely?


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