hyperic-hq-discuss

[Hyperic-hq-discuss] Newbie question on using SIGAR on linux

[Al <spi...@ho...>]

I just started using SIGAR and I have some trouble making it work on a linux machine. 

I am getting java.lang.UnsatisfiedLinkError on the native function getNetInterfaceList. I have installed the .so with ldconfig and I also tried doing a System.load() on the .so library in the code before calling the SIGAR calls. It didn't complain about the loading but still throws that exception. Any help would be greatly appreciated.

Re: [Hyperic-hq-discuss] Newbie question on using SIGAR on linux

[jrallen9 <jus...@te...>]

In my project and runtime directory i have a lib directory so this bit of codes works to load the Linux x86 so version.


File executionPath = new File("");
System.load(executionPath.getAbsolutePath() + "/lib/sigar-lib/lib/libsigar-x86-linux.so");

Make sure you are loading the right so for your runtime enviornment. This bit of code is dynamic based on the JVM environment:

if(System.getProperty("os.name").toLowerCase().contains("linux")){
				if(System.getProperty("os.arch").toLowerCase().compareTo("i386") == 0){
					System.load(executionPath.getAbsolutePath() + "/lib/sigar-lib/lib/libsigar-x86-linux.so");
				}
				else if(System.getProperty("os.arch").toLowerCase().compareTo("amd64") == 0){
					System.load(executionPath.getAbsolutePath() + "/lib/sigar-lib/lib/libsigar-amd64-linux.so");
				}

Let me know if that works or you have more problems.

Re: [Hyperic-hq-discuss] Newbie question on using SIGAR on linux

[Jean <sig...@hy...>]

Hello,

In our environment, our agent needs to support Windows XP, 2003, 2008, Solaris 9/10 and Linux. 

We have a directory called lib, which include the following files:

04/29/2010  12:21 PM         2,698,577 Agent.jar
04/28/2010  05:33 PM           246,605 libsigar-amd64-linux.so
04/28/2010  05:33 PM           251,360 libsigar-amd64-solaris.so
04/28/2010  08:41 AM           285,004 libsigar-sparc-solaris.so
04/28/2010  05:05 PM           261,896 libsigar-sparc64-solaris.so
04/28/2010  05:34 PM           233,583 libsigar-x86-linux.so
04/28/2010  08:40 AM           242,880 libsigar-x86-solaris.so
04/21/2010  08:05 PM           392,704 sigar-amd64-winnt.dll
04/21/2010  08:05 PM           258,048 sigar-x86-winnt.dll
04/21/2010  08:05 PM            98,776 sigar-x86-winnt.lib
04/21/2010  08:05 PM           423,169 sigar.jar
04/29/2010  12:21 PM         1,408,542 WebAppSupport.jar
07/03/2006  04:56 PM            69,632 wrapper.dll
07/03/2006  04:56 PM            87,076 wrapper.jar


This is our classpath

CLASSPATH=
export CLASSPATH=

CLASSPATH="${CLASSPATH}:${PROPERTIES_DIRECTORY}"
CLASSPATH="${CLASSPATH}:${LIB_DIRECTORY}/Agent.jar"
CLASSPATH="${CLASSPATH}:${LIB_DIRECTORY}/sigar.jar"

export CLASSPATH

It looks like that if these files are in the same directory as the sigar.jar then it will load them automatically, as I do not have specif Java code to load the libraries.

If I suspect a problem with Sigar, I run this command

java -jar sigar.jar

sigar> version
Sigar version.......java=1.6.3.82, native=1.6.3.82
Build date..........java=07/09/2009 04:06 AM, native=07/09/2009 04:06 AM
SCM rev.............java=80016c6, native=80016c6
Archlib.............libsigar-amd64-linux.so
Current fqdn........appserver.xxxxxxx.com
Current user........xxxxxxx

OS description......Red Hat Enterprise Linux 5
OS name.............Linux
OS arch.............x86_64
OS machine..........x86_64
OS version..........2.6.18-164.el5
OS patch level......unknown
OS vendor...........Red Hat
OS vendor version...Enterprise Linux 5
OS code name........Tikanga
OS data model.......64
OS cpu endian.......little
Java vm version.....16.3-b01
Java vm vendor......Sun Microsystems Inc.
Java home.........../apps/qosmon/jre/jre1.6.0_20_linux_x64