ESXi standalone host monitoring issue

[jyoti22]

Hi,
As per manual of "box293_check_vmware", I have performed below steps

1. deployed vMA appliance.
2. copied plugin on it
3. created directory for ssh and configured plugin permissions
4. created certificates to use with vMA
5. Transferred certificates to vMA
6. configured vMA credentials for connecting to ESXi standalone Host

Now when I am performing a test with the plugin to ensure all is working OK, iget below error

Code: Select all

vi-admin@localhost:~> ~/box293_check_vmware.pl --server <ESXi_IP> --check Host_OS_Name_Version
Total number of concurrent checks exceeds 15, aborting!

Please suggest the solution for this.

[Box293]

That is unusual if you don't have nagios performing any checks against it yet.

Generally you need to use the --concurrent_checks argument with a number higher than the default of 15 only when you start performing heavy monitoring.

Just as a test, do you get the same problem if you restart the vMA?

[jyoti22]

Please find attached steps I performed and advice the steps for monitoring standalone ESXi host. I cannot restart vMA as its in Production environment.
I am configuring hosts which are part of vCenter from same vMA and its working fine.

Code: Select all

login as: root
root@Nagios_XI's password:
Last login: Mon Sep 28 04:53:29 2015 from irv-rdsh04-01.epicor.net
[root@Nagios_XI ~]# su nagios
[nagios@Nagios_XI root]$ cd ~
[nagios@Nagios_XI ~]$ pwd
/home/nagios
[nagios@Nagios_XI ~]$ ssh-keygen -t dsa
Generating public/private dsa key pair.
Enter file in which to save the key (/home/nagios/.ssh/id_dsa):
/home/nagios/.ssh/id_dsa already exists.
Overwrite (y/n)? y
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /home/nagios/.ssh/id_dsa.
Your public key has been saved in /home/nagios/.ssh/id_dsa.pub.
The key fingerprint is:
93:b3:4c:1b:07:8e:cd:5b:c4:cf:38:af:ec:04:5d:af nagios@Nagios_XI
The key's randomart image is:
+--[ DSA 1024]----+
|                 |
|         .       |
|        . o .    |
|       = = = .   |
|      . S * o .  |
|       o @ o .   |
|        = . E    |
|         o .     |
|         .+      |
+-----------------+
[nagios@Nagios_XI ~]$ cat ~/.ssh/id_dsa.pub | ssh vi-admin@vMA 'umask 077; cat>>~/.ssh/authorized_keys'
Welcome to vSphere Management Assistant
vi-admin@vMA's password:
[nagios@Nagios_XI ~]$ ssh vi-admin@1vMA
Welcome to vSphere Management Assistant
Last login: Mon Sep 28 18:35:50 UTC 2015 from Nagios_XI on ssh
Last login: Mon Sep 28 18:35:50 2015 from Nagios_XI 
vi-admin@localhost:~> /usr/lib/vmware-vcli/apps/general/credstore_admin.pl add --server ESXi_host --username "domain\svc_esx_monitor" --password "xxx"                             
Existing entry modified successfully.
vi-admin@localhost:~> ~/box293_check_vmware.pl --server ESXi_host --check Host_OS_Name_Version
Total number of concurrent checks exceeds 15, aborting!
vi-admin@localhost:~>

[Box293]

So what happens if you increase the concurrent checks?

Code: Select all

~/box293_check_vmware.pl --server ESXi_host --check Host_OS_Name_Version --concurrent_checks 30

[jyoti22]

Code: Select all

vi-admin@localhost:~> /usr/lib/vmware-vcli/apps/general/credstore_admin.pl add --server Esxi_host --username "domain\user" --password "xxx"
Existing entry modified successfully.
vi-admin@localhost:~> ~/box293_check_vmware.pl --server Esxi_host --check Host_OS_Name_Version --concurrent_checks 30
Total number of concurrent checks exceeds 30, aborting!
vi-admin@localhost:~>

[Box293]

Hi,
As per manual of "box293_check_vmware", I have performed below steps

1. deployed vMA appliance.
2. copied plugin on it
3. created directory for ssh and configured plugin permissions
4. created certificates to use with vMA
5. Transferred certificates to vMA
6. configured vMA credentials for connecting to ESXi standalone Host

Now when I am performing a test with the plugin to ensure all is working OK, iget below error

I cannot restart vMA as its in Production environment.

If you have just deployed it then I don't understand why you can't restart it.

What is the output of top -n 1

[jyoti22]

Code: Select all

vi-admin@localhost:~> top -n 1
top - 20:48:24 up 11 days, 21:40,  1 user,  load average: 96.59, 91.97, 78.15
Tasks: 273 total,  92 running, 181 sleeping,   0 stopped,   0 zombie
Cpu(s): 89.8%us,  1.2%sy,  0.0%ni,  9.0%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   8193800k total,  3151084k used,  5042716k free,   120080k buffers
Swap:   137212k total,    36092k used,   101120k free,   394816k cached

  PID USER      PR  NI  VIRT  RES  SHR S   %CPU %MEM    TIME+  COMMAND
28303 vi-admin  20   0 78688  40m 2648 R      8  0.5   0:05.11 box293_check_vm
27769 vi-admin  20   0 80000  41m 2648 R      6  0.5   0:05.52 box293_check_vm
27813 vi-admin  20   0 80000  41m 2648 R      6  0.5   0:05.48 box293_check_vm
27981 vi-admin  20   0 78696  40m 2648 R      6  0.5   0:05.42 box293_check_vm
28062 vi-admin  20   0 78688  40m 2648 R      6  0.5   0:05.14 box293_check_vm
28067 vi-admin  20   0 78696  40m 2648 R      6  0.5   0:05.26 box293_check_vm
28180 vi-admin  20   0 78696  40m 2648 R      6  0.5   0:05.17 box293_check_vm
28297 vi-admin  20   0 78696  40m 2648 R      6  0.5   0:05.20 box293_check_vm
28298 vi-admin  20   0 78688  40m 2648 R      6  0.5   0:05.11 box293_check_vm
28304 vi-admin  20   0 78688  40m 2648 R      6  0.5   0:05.19 box293_check_vm
28756 vi-admin  20   0 77460  39m 2648 R      6  0.5   0:04.90 box293_check_vm
28836 vi-admin  20   0 77472  39m 2648 R      6  0.5   0:04.96 box293_check_vm
29102 vi-admin  20   0 75132  36m 2644 R      6  0.5   0:04.58 box293_check_vm
29138 vi-admin  20   0 75124  36m 2644 R      6  0.5   0:04.63 box293_check_vm
29252 vi-admin  20   0 75124  36m 2644 R      6  0.5   0:04.45 box293_check_vm
29352 vi-admin  20   0 73064  35m 2644 R      6  0.4   0:04.38 box293_check_vm
29718 vi-admin  20   0 68484  30m 2644 R      6  0.4   0:03.61 box293_check_vm
vi-admin@localhost:~>

I have not deployed vMA just copied plugin on it. step 1 was typo

[Box293]

So what happens if you increase the concurrent checks to 60?

Code: Select all

~/box293_check_vmware.pl --server ESXi_host --check Host_OS_Name_Version --concurrent_checks 60

It's as if you are already using the box293_check_vmware plugin in your environment.

[jyoti22]

Now when get the vMA restarted and then when trying to run the command again, I get blank output

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vi-admin@localhost:~> /usr/lib/vmware-vcli/apps/general/credstore_admin.pl add --server esxi_host--username "domain\user" --password "xxx"
New entry added successfully
vi-admin@localhost:~> ~/box293_check_vmware.pl --server esxi_host--check Host_OS_Name_Version
vi-admin@localhost:~>

[hsmith]

Hi jyoti22,

Box293 is currently in the middle of giving a talk at the Nagios World Conference. He's aware that this still not working correctly. For now can you please attempt to reinstall the vMA and let us know if this resolves anything?