root@Nibbler:/# su - zenoss
zenoss@Nibbler:~$ export HTTPS_CA_FILE=/home/zenoss/ssl-certs/cacert.pem
zenoss@Nibbler:~$ export HTTPS_CA_DIR=/home/zenoss/ssl-certs
zenoss@Nibbler:~$ resxtop --server scruffy --user root -b -n 1 -a
root@scruffy' password:

....

(I get the whole Information about the vmware cluster)

This command is working perfect !!!

Then I followed the Guide: Zenoss Core Extended Monitoring

zenoss@Nibbler:~$ cd $ZENHOME/libexec
zenoss@Nibbler:/usr/local/zenoss/libexec$ ln -s PathToResxtop

And then I tested the Plugin:

zenoss@Nibbler:/usr/local/zenoss/libexec$ $ZENHOME/ZenPacks/Ze*EsxTop*/Z*/z*/E*/libexec/check_esxtop --server=scruffy --user=root --password=password1234 --showvms
Internal Panic: bora/lib/string/str.c:411 Buffer too small 0x805051f

But I got this Error Message: Internal Panic: bora/lib/string/str.c:411 Buffer too small 0x805051f

I also get this message in the zenoss GUI

There I get this message: Internal Panic_boar_lib_string_str.c_411 Buffer too small 0x805051 f

Can anyone help me to fix this?

or can the developer please fix the plugin?

I am using vmware ESXi 5.1 but would like to Update to 5.5 soon.

Are there any other tools or plugins to monitor vmware esx server?