Copyright © 2013
Teleste Corporation
Optimo
Server Installation Guide and Release Notes v2.0.2
15
THE WORKER NODE
A worker node is any
Optimo
Server that:
§
Connects to the management node’s database.
§
Mounts the management node’s file share.
The configure script will prompt for the name or IP address of the cluster’s management node:
What is the hostname or IP address of the management node you'd like to connect to?
If the IP address is given, the management node should always be specified as the first network interface,
i.e. 10.82.6.100.
Worker nodes can be added to a cluster anytime after the management node is configured. The cluster
will come on-line as each node is added. Jobs will be distributed to worker nodes as soon as they are
configured and the
Optimo
service is started.
COPY-LOCAL LOCATION
Since a worker node mounts the file share of the management node at /data/server, an additional
directory outside of this tree is created for jobs that specify “copy to local” in the
Pre Processing
options of
a job’s configuration.
The default location is /data/local_sources, but
any file location may be used that is read and writable by
the “
elemental
” user. This value is stored in the
<sequencer_config>
section of the settings.xml file.
(In the case of the settings.xml file, text in angle brackets (‘<’ or ‘>’) does not indicate substitution except
in the command below <full path to local file store>.)
<copy_local_dir> <full path to local file store> </copy_local_dir>
These controls are also available from the user interface by navigating to the Settings tab and selecting
Advanced.
UPGRADING A CLUSTER FROM A PREVIOUS VERSION
When upgrading an
Optimo
Server cluster:
§
Stop each node’s elemental_se service in the cluster (the order in which nodes are stopped is not
important). From a secure (ssh) shell, enter:
/sbin/service elemental_se stop
§
Stop each node’s httpd service in the cluster (the order in which nodes are stopped is not
important). From a secure (ssh) shell, enter:
/sbin/service httpd stop
§
Update the management node with version 2.0.2 software. See
the
Optimo S
erver Upgrade Guide
for more information.
§
Update each cluster node (again, order is not important).
