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Table of Contents
Configuration
This chapter describes the configuration of the Script-CLuster.
A SCript-CLuster is configured in three ascii files:
- sccl.conf
- packages.conf
- resources.conf
All files are located in
cd /etc/sccl/
sccl.conf
This file is source'd, so be careful when editing.
Missing content
packages.conf
Die Clusterpakete werden in der Datei, die durch PAKETE in der /etc/sccl/sccl.conf angegeben ist, definiert. Als Standard ist /etc/sccl/packages.conf festgelegt. Sie beinhaltet eine Tabelle mit allen Paketen des Clusters und die Clusterknoten, auf denen sie gestartet werden dürfen.
- /etc/sccl/packages.conf
package1 clnode1 clnode2 package2 - clnode2 clnode1 package3 - clnode2 clnode1
Jede Zeile hat die Form:
<package> { - | <stdnode> } [<altnode1> <altnode2> ...]
Das Clusterpaket <package> wird automatisch beim Start des Clusters auf seinem Standard-Clusterknoten <stdnode> gestartet und darf auf allen <altnodeX> laufen. Ein '-' anstelle von <stdnode> verhindert das automatische Starten des Clusterpakets beim Starten des Clusters oder des Clusterknotens.
resources.conf
The resources are configured in the file indicated by the (showing the default entry):
RESOURCES=/etc/sccl/resources.conf
entry in the /etc/sccl/sccl.conf.
The RESOURCES file contains all definitions of the resources belonging to the cluster packages.
It may also contain resource definitions belonging to sub-packages which are not listed
as packages in the PACKAGES file but only used in the RESOURCES file. Sub-packages are used to
bundle resources under one definition, which is useful if several packages make use of that sub-package.
Sub-packages cannot be started stand-alone and they do not appear as package in the output of the
sccl_show_cluster command and their status cannot be determined.
The resource definition must be in one line! The general syntax of a resource definition:
<package> <description_no_spaces> [MULTI] <resource> <resource> ...
When the package ist “started”, all resources are activated or started in the sequence the resources are given in the resource definition line (from left to right/forward).
When the package ist “stopped”, all resources are deactivated or stopped in the sequence the resources are given in the resource definition line (from right to left/backwards).
| <package> | The name of a cluster package. |
| <description_no_spaces> | Long description of the package, may not contain spaces, use underscore instead. |
| MULTI | The cluster package may be simultaneously active on more than one cluster node. |
| <resource> | A specification of a resource (described later) |
Link to examples
The resources are described in Resources.
