#8 check-ping not doing a real ping

[Anonymous]

check-ping does a InetAddress.isReachable. As far as I know (did some test), doing a real ping is something Java cannot do (for permission reasons?).

Due to this, the check-ping takes at least 1000ms for doing a ping which results in RTA values above 1000ms whereas the real ping has 1ms RTA in the case I tested.

From the readings I did on the internet, the only way to do a real ping in Java is to execute the OS's ping command via the exec() method in Java.

[Nobody/Anonymous]

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I did the test with Java 1.5.0_10 and Java 1.6.0 on Windows XP SP2 and with Java 1.6.0 on Vista.

[Anonymous]

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If you run the plugin as root on linux this works just fine.
On windows this is not a problem.
I have found NO way around this on linux using a java plugin for ping.
You must instead use either the existing nagios check_ping plugin ( which can ALREADY work with Blue ).
OR... there is a JNI way to accomplish this, and I will look at offering such a mechanism shortly.

Rich

[Anonymous]

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Oops. just realized this was tested on windows...
Checking into it.