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.

Field

Expected Input

Purpose

Host Name

Fully qualified domain name Required. Designates the location of the server running the

 

 

HPjmeter node agent or the location of the designated SSH

 

 

host. The SSH designate machine can be the machine where

 

 

the node agent is running.

Optional Port

Port number

Optional. Designates a nonstandard communication port on

 

 

the server running the HPjmeter node agent or on the SSH

 

 

designate machine.

External IP

IP address

Required for SSH connection only. Designates the location of

 

 

the delegate tunneling server.

External Port

Port number

Required for SSH connection only. Designates the

 

 

communication port on the delegate server that will allow

 

 

communication going from the HPjmeter console to the

 

 

HPjmeter node agent.

Internal Port

Port number

Required for SSH connection only. Designates the

 

 

communication port on the delegate server that will allow

 

 

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

HPjmeter Feature

 

JVM

 

Command Line Option or Action

 

 

 

Java 1.4x

Java 5.x

Java 6.x

 

 

 

 

 

 

 

Start and stop eprof data

—

X (5.0.04+)

X

kill -USR2 pid

collection with zero preparation

 

 

 

 

Specify JVM agent

X

—

—

-Xrunjmeter

Specify JVM agent

—

X

X

-agentlib:jmeter*

Dynamic attach of the JVM agent

—

–

X (6.0.03+)

None

Collect hprof data

X

—

—

-Xrunhprof

Collect hprof data

—

X

X

-agentlib:hprof

Access JMX Viewer

—

X

X

-agentlib:jmeter*

Obtain detailed garbage

X

X

X

-Xverbosegc,-Xloggc

collection metrics

 

 

 

 

View major versus minor

—

X (5.0.12+)

X (6.0.01+)

-Xverbosegc,-Xloggc

garbage collection metrics

 

 

 

 

View results of running print GC

—

—

X

-XX:+PrintGCDetails and

details and print heap at GC

 

 

 

-XX:+PrintHeapAtGC

together

 

 

 

 

Connecting to the HPjmeter Node Agent 197