HPjmeter 4.2 User's Guide

A Quick References
Connecting to the HPjmeter Node Agent
For information on how to connect to the node agent, see Connect to the Node Agent from the
Console (page 23).
Table A-1 Fields Used When Creating a Connection to the HPjmeter Node Agent.
PurposeExpected InputField
Required. Designates the location of the server running the
HPjmeter node agent or the location of the designated SSH
Fully qualified domain name
Host Name
host. The SSH designate machine can be the machine where
the node agent is running.
Optional. Designates a nonstandard communication port on
the server running the HPjmeter node agent or on the SSH
designate machine.
Port number
Optional Port
Required for SSH connection only. Designates the location of
the delegate tunneling server.
IP address
External IP
Required for SSH connection only. Designates the
communication port on the delegate server that will allow
Port number
External Port
communication going from the HPjmeter console to the
HPjmeter node agent.
Required for SSH connection only. Designates the
communication port on the delegate server that will allow
Port number
Internal Port
communication going from the HPjmeter node agent to the
HPjmeter console.
Determining Which HPjmeter Features Are Available With a Specific JVM
Version
Table A-2 HPjmeter Features Available by JVM Version
Command Line Option or Action
JVM
HPjmeter Feature
Java 6.xJava 5.xJava 1.4x
kill -USR2 pid
XX (5.0.04+)
—
Start and stop eprof data
collection with zero preparation
-Xrunjmeter——
XSpecify JVM agent
-agentlib:jmeter*
XX
—
Specify JVM agent
NoneX (6.0.03+)–
—
Dynamic attach of the JVM agent
-Xrunhprof——
XCollect hprof data
-agentlib:hprof
XX
—
Collect hprof data
-agentlib:jmeter*
XX
—
Access JMX Viewer
-Xverbosegc, -Xloggc
XXXObtain detailed garbage
collection metrics
-Xverbosegc, -Xloggc
X (6.0.01+)X (5.0.12+)
—
View major versus minor
garbage collection metrics
-XX:+PrintGCDetails and
-XX:+PrintHeapAtGC
X
——
View results of running print GC
details and print heap at GC
together
Connecting to the HPjmeter Node Agent 197