.. _cluster_check:

Cluster Check
-------------

.. index:: cluster;cluster check

.. _19.1.1|EKB-1249:
.. _19.2.1|EKB-2618: 



On a cluster, the **cluster check** command is available to:

* **Network**: test and validate connectivity from each node to every other node, for each port required,
  as well as the time taken to connect to each node. 

  * Checks for access to port ``27020`` on database hosts is not required from web proxy nodes.
  * Checks for access to port ``443`` is only required from web proxy nodes to unified nodes.

* **Disk**: carry out a drive space percentage check
* **NTP**: at NTP is functioning

This command should also be run *before* carrying out a system upgrade.

Example output (abbreviated):

::

   $ cluster check

   192.168.100.3:
       Network:
          => 192.168.100.4:27020: 0.217 ms
          => 192.168.100.4:8443: 0.206 ms
          => 192.168.100.5:27020: 0.203 ms
          => 192.168.100.5:8443: 0.261 ms
          => 192.168.100.6:27020: 0.18 ms
          => 192.168.100.6:8443: 0.195 ms
          => 192.168.100.7:8443: 0.15 ms
          => 192.168.100.8:8443: 0.172 ms
       Disk:
          /: 27 %
          /opt/platform: 20 %
          /opt/platform/apps/mongodb/dbroot: 1 %
          /tmp: 2 %
          /var/log: 1 %
       NTP:
           Server: Synced to 172.29.1.15
   
   [...]
   
   192.168.100.6:
       Network:
          => 192.168.100.3:27020: 0.248 ms
          => 192.168.100.3:8443: 0.326 ms
          => 192.168.100.4:27020: 0.265 ms
          => 192.168.100.4:8443: 0.288 ms
          => 192.168.100.5:27020: 0.293 ms
          => 192.168.100.5:8443: 0.228 ms
          => 192.168.100.7:8443: 0.211 ms
          => 192.168.100.8:8443: 0.235 ms
       Disk:
          /: 27 %
          /opt/platform: 20 %
          /opt/platform/apps/mongodb/dbroot: 1 %
          /tmp: 2 %
          /var/log: 1 %
       NTP:
           Server: Synced to 172.29.1.15
   192.168.100.7:
       Network:
          => 192.168.100.3:443: 0.227 ms
          => 192.168.100.3:8443: 0.267 ms
          => 192.168.100.4:443: 0.227 ms
          => 192.168.100.4:8443: 0.175 ms
          => 192.168.100.5:443: 0.211 ms
          => 192.168.100.5:8443: 0.174 ms
          => 192.168.100.6:443: 0.232 ms
          => 192.168.100.6:8443: 0.255 ms
          => 192.168.100.8:8443: 0.174 ms
       Disk:
          /: 16 %
          /opt/platform: 9 %
          /tmp: 1 %
          /var/log: 1 %
       NTP:
           Server: Synced to 172.29.1.15

   [...]