嘗試使用 MCollective 執行 Puppet 時如何解決“未發送請求，我們沒有發現任何節點”？

M集體

[vagrant@localhost ~]$ mco ping
localhost.localdomain                    time=117.12 ms


---- ping statistics ----
1 replies max: 117.12 min: 117.12 avg: 117.12
[vagrant@localhost ~]$ mco inventory localhost.localdomain
Inventory for localhost.localdomain:

  Server Statistics:
                     Version: 2.6.1
                  Start Time: Sat Nov 22 23:59:59 +0000 2014
                 Config File: /etc/mcollective/server.cfg
                 Collectives: mcollective
             Main Collective: mcollective
                  Process ID: 3364
              Total Messages: 3
     Messages Passed Filters: 3
           Messages Filtered: 0
            Expired Messages: 0
                Replies Sent: 2
        Total Processor Time: 1.23 seconds
                 System Time: 0.39 seconds

  Agents:
     discovery       rpcutil

  Data Plugins:
     agent           fact            fstat

  Configuration Management Classes:
     No classes applied

  Facts:
     mcollective => 1

Puppet 和 MCollective

一旦服務重新啟動，MCollective 就會添加一個puppet.dll並被 MCollective 辨識。/usr/libexec/mcollective/mcollective/agent

[vagrant@localhost ~]$ mco plugin doc
Please specify a plugin. Available plugins are:

Agents:
 puppet                    Run Puppet agent, get its status, and enable/disable it
 rpcutil                   General helpful actions that expose stats and internals to SimpleRPC clients

Aggregate:

問題

雖然可以辨識主機，但無法使用 MCollective 在主機上執行 Puppet。

[vagrant@localhost ~]$ mco rpc puppet runonce
Discovering hosts using the mc method for 2 second(s) .... 0

No request sent, we did not discover any nodes.



[vagrant@localhost ~]$ mco ping
localhost.localdomain                    time=106.18 ms


---- ping statistics ----
1 replies max: 106.18 min: 106.18 avg: 106.18

更新

如果 Puppet Agent 正在執行，問題仍然存在。

[root@localhost vagrant]# mco ping
localhost.localdomain                    time=257.15 ms


---- ping statistics ----
1 replies max: 257.15 min: 257.15 avg: 257.15
[root@localhost vagrant]# mco rpc puppet runonce
Discovering hosts using the mc method for 2 second(s) .... 0

No request sent, we did not discover any nodes.



[root@localhost vagrant]# ps -ef | grep puppet
root      2578     1  0 11:03 ?        00:00:03 /usr/bin/ruby /usr/bin/puppet agent
root      3129  2783  0 11:12 pts/0    00:00:00 grep puppet
[root@localhost vagrant]# sudo service puppet stop
Stopping puppet agent:                                     [  OK  ]
[root@localhost vagrant]# ps -ef | grep puppet
root      3145  2783  0 11:13 pts/0    00:00:00 grep puppet
[root@localhost vagrant]#

目前正在嘗試通過閱讀本指南來解決問題。

客戶端似乎無法辨識 Puppet 外掛。

[root@localhost mcollective]# mco inventory localhost.localdomain
Inventory for localhost.localdomain:

  Server Statistics:
                     Version: 2.6.1
                  Start Time: Sun Nov 23 12:15:07 +0000 2014
                 Config File: /etc/mcollective/server.cfg
                 Collectives: mcollective
             Main Collective: mcollective
                  Process ID: 5110
              Total Messages: 5
     Messages Passed Filters: 3
           Messages Filtered: 2
            Expired Messages: 0
                Replies Sent: 2
        Total Processor Time: 11.05 seconds
                 System Time: 4.09 seconds

  Agents:
     discovery       rpcutil

  Data Plugins:
     agent           fact            fstat

  Configuration Management Classes:
     No classes applied

  Facts:
     mcollective => 1

該問題是由於未正確安裝 Puppet 外掛引起的。

README.md

The plugin has been superseded by a new Puppet agent: https://github.com/puppetlabs/mcollective-puppet-agent and is available as packages from apt.puppetlabs.com and yum.puppetlabs.com as mcollective-puppet-agent

This version will stay up here till a new Puppet Commander has been written and then it will be removed.

sudo yum -y install mcollective-puppet-agent並重新啟動服務解決了這個問題。

[vagrant@localhost ~]$ mco rpc puppet runonce
Discovering hosts using the mc method for 2 second(s) .... 1

* [ ===========================================================> ] 1 / 1




Finished processing 1 / 1 hosts in 747.09 ms

引用自：https://serverfault.com/questions/646385