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| - | ===== Installation and Configuration ===== | + | ===== Installation ===== |
| - | This chapter describes the installation and configuration of the Script-CLuster. | + | This chapter describes the installation of the Script-CLuster. |
| ==== Installation ==== | ==== Installation ==== | ||
| Line 7: | Line 7: | ||
| === SLES === | === SLES === | ||
| - | Es wird das Paket u2webtools zum Betrieb des SCript-CLusters vorausgesetzt. | + | You need the u2w package as requirement. |
| - | Die Datei rpm-Datei des SCript-CLusters auf den Zielrechner kopieren. | + | Download the rpm and install it. |
| <code bash> | <code bash> | ||
| - | # rpm --install sccl-1.3-2.i586.rpm | + | # rpm --install sccl2-2.3-5.noarch.rpm |
| </code> | </code> | ||
| Line 39: | Line 39: | ||
| ----- | ----- | ||
| - | ==== Configuration ==== | + | ==== Download ==== |
| - | The configuration of the whole cluster is found in three ascii files | + | Download the appropriate package for your operating system. |
| - | * sccl.conf | + | |
| - | * packages.conf | + | |
| - | * resources.conf | + | |
| - | All files are located in | + | {{:sccl:sccl2-2.3-5.src.rpm|The source package sccl2-2.3-5.src.rpm}} |
| - | <code bash> | + | {{:sccl:sccl2-2.3-5.noarch.rpm|The binary package sccl2-2.3-5.noarch.rpm}} |
| - | cd /etc/sccl/ | + | |
| - | </code> | + | |
| - | + | ||
| - | + | ||
| - | ----- | + | |
| - | + | ||
| - | === sccl.conf === | + | |
| - | + | ||
| - | + | ||
| - | :NOTE: This file is source'd, so be careful when editing. | + | |
| - | + | ||
| - | ----- | + | |
| - | + | ||
| - | === 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. | + | |
| - | + | ||
| - | # vi /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) | + | |
| - | |} | + | |
| - | + | ||
| - | :TODO: Link to examples | + | |
| - | + | ||
| - | ----- | + | |
| - | + | ||
| - | ==== Resources ==== | + | |
| - | + | ||
| - | + | ||
| - | === IP === | + | |
| - | + | ||
| - | ip address | + | |
| - | + | ||
| - | {| | + | |
| - | ! definition | + | |
| - | | ''IP:{<interface>|AUTO}:<ip_address>:<netmask>[:ROUTE]'' | + | |
| - | |- | + | |
| - | ! action when "start" | + | |
| - | | startup an ip address on the given <interface> or if ''AUTO'' is set, | + | |
| - | find depending on the ip-address and netmask a matching interface. | + | |
| - | |- | + | |
| - | ! action when "stop" | + | |
| - | | The optional ROUTE is removed and the ip-address is removed from the used interface. | + | |
| - | |- | + | |
| - | ! examples | + | |
| - | | ''IP:eth0:10.1.17.103:255.255.255.0'', ''IP:AUTO:10.1.12.122:255.255.255.0'' | + | |
| - | |} | + | |
| - | + | ||
| - | === PROC == | + | |
| - | + | ||
| - | Start only, if a specific process is running. | + | |
| - | + | ||
| - | {| | + | |
| - | ! definition | + | |
| - | | ''PROC:<expression>[:WAIT]'' | + | |
| - | |- | + | |
| - | ! action when "start" | + | |
| - | | It is checked, whether one or more specific processes are running. | + | |
| - | The used command is ''ps -efa | grep <expression>''. | + | |
| - | |- | + | |
| - | ! action when "stop" | + | |
| - | | none | + | |
| - | |- | + | |
| - | ! example | + | |
| - | | ''PROC:java:WAIT'' | + | |
| - | |} | + | |
| - | + | ||
| - | === !PROC == | + | |
| - | + | ||
| - | Start only if specific processes are not running. | + | |
| - | + | ||
| - | {| | + | |
| - | ! definition | + | |
| - | | ''!PROC:<expression>'' | + | |
| - | |- | + | |
| - | ! action when "start" | + | |
| - | | It is checked, whether one or more certain processes are **not** running. | + | |
| - | The used command is ''ps -efa | grep <expression>''. | + | |
| - | |- | + | |
| - | ! action when "stop" | + | |
| - | | none | + | |
| - | |- | + | |
| - | ! example | + | |
| - | | ''!PROC:backup'' | + | |
| - | |} | + | |
| - | + | ||
| - | === RAW === | + | |
| - | + | ||
| - | A raw partition. | + | |
| - | + | ||
| - | {| | + | |
| - | ! definition | + | |
| - | | ''RAW:<partition>'' | + | |
| - | |- | + | |
| - | ! action when "start" | + | |
| - | | The unlocked RAW-partition is marked locked within the cluster. | + | |
| - | |- | + | |
| - | ! action when "stop" | + | |
| - | | The locked RAW-partition is marked unlocked within the cluster. | + | |
| - | |- | + | |
| - | ! examples | + | |
| - | | ''RAW:/dev/raw1'' | + | |
| - | |} | + | |
| - | + | ||
| - | + | ||
| - | === FS === | + | |
| - | + | ||
| - | Mount a file system. | + | |
| - | + | ||
| - | {| | + | |
| - | ! definition | + | |
| - | | ''FS:<file_system>[:FSCK]'' | + | |
| - | |- | + | |
| - | ! action when "start" | + | |
| - | | The file system is mounted (mount). It only can be mounted on | + | |
| - | one cluster node at a time. The <file_system> must be present | + | |
| - | in the /etc/fstab. The optional FSCK will perform a file system check | + | |
| - | before mounting it. | + | |
| - | |- | + | |
| - | ! action when "stop" | + | |
| - | | The file system is unmounted (umount). | + | |
| - | |- | + | |
| - | ! examples | + | |
| - | | ''FS:/u01/data'' | + | |
| - | |} | + | |
| - | + | ||
| - | + | ||
| - | === FSG === | + | |
| - | + | ||
| - | Mount a file system group. | + | |
| - | + | ||
| - | This resource type is rarely used as it needs a file system group definition | + | |
| - | based on specific remarks in the ''/etc/fstab'' file. | + | |
| - | + | ||
| - | {| | + | |
| - | ! definition | + | |
| - | | ''FSG:<file_system_group>[:FSCK]'' | + | |
| - | |- | + | |
| - | ! action when "start" | + | |
| - | | All file systems belonging to the <file_system_group> are mounted (mount). | + | |
| - | They only can be mounted on one cluster node at a time. | + | |
| - | The <file_system_group> must be defined in the /etc/fstab. | + | |
| - | The optional FSCK will perform a file system check before mounting any file system. | + | |
| - | |- | + | |
| - | ! action when "stop" | + | |
| - | | All file systems of the <file_system_group> are unmounted (umount). | + | |
| - | |- | + | |
| - | ! example | + | |
| - | | ''FSG:allsan'' | + | |
| - | |} | + | |
| - | + | ||
| - | + | ||
| - | === NFS === | + | |
| - | + | ||
| - | Mount an NFS file system. | + | |
| - | + | ||
| - | {| | + | |
| - | ! definition | + | |
| - | | ''NFS:<nfs_file_system>'' | + | |
| - | |- | + | |
| - | ! action when "start" | + | |
| - | | The NFS file system is mounted (mount). It can be mounted on | + | |
| - | more than one cluster node at a time. The <nfs_file_system> must be present | + | |
| - | in the /etc/fstab. | + | |
| - | |- | + | |
| - | ! action when "stop" | + | |
| - | | The NFS file system is unmounted (umount). | + | |
| - | |- | + | |
| - | ! example | + | |
| - | | ''NFS:/backup/central'' | + | |
| - | |} | + | |
| - | + | ||
| - | === NFSG === | + | |
| - | + | ||
| - | Mount a group of NFS file systems. | + | |
| - | + | ||
| - | This resource type is rarely used as it needs a file system group definition based on specific remarks in the ''/etc/fstab'' file. | + | |
| - | + | ||
| - | {| | + | |
| - | ! definition | + | |
| - | | ''NFSG:<nfs_file_system_group>'' | + | |
| - | |- | + | |
| - | ! action when "start" | + | |
| - | | All NFS file systems of the file system group are mounted (mount). | + | |
| - | They can be mounted on more than one cluster node at a time. | + | |
| - | The <nfs_file_system_group> must be defined in the /etc/fstab. | + | |
| - | |- | + | |
| - | ! action when "stop" | + | |
| - | | All NFS file system of the <nfs_file_system_group> are unmounted (umount). | + | |
| - | |- | + | |
| - | ! example | + | |
| - | | ''NFSG:allsapfs'' | + | |
| - | |} | + | |
| - | + | ||
| - | + | ||
| - | === RS === | + | |
| - | + | ||
| - | The sub-package (resource) will be started when needed by the first package | + | |
| - | and it is stopped when the last package, that the sub-package is used by, is stopped. | + | |
| - | + | ||
| - | {| | + | |
| - | ! definition | + | |
| - | | ''RS:<subpackage>'' | + | |
| - | |- | + | |
| - | ! action when "start" | + | |
| - | | All resources of the sub-packages are activated (left to right/forward). | + | |
| - | |- | + | |
| - | ! action when "stop" | + | |
| - | | All resources of the sub-packages are deactivated (right to left/backwards). | + | |
| - | |- | + | |
| - | ! example | + | |
| - | | ''RS:kerberos'' | + | |
| - | |} | + | |
| - | + | ||
| - | === PRG === | + | |
| - | + | ||
| - | Execute a script to start or stop the package. | + | |
| - | + | ||
| - | {| | + | |
| - | ! definition | + | |
| - | | ''PRG[:<path>]'' | + | |
| - | |- | + | |
| - | ! action when "start" | + | |
| - | | By default, when no <path> is given, the script ''/etc/sccl/scripts/<package>_startstop'' is executed. | + | |
| - | If a <path> is given, then that script is executed. | + | |
| - | If the <path> only contains a base file name (no slashes), the script ''/etc/sccl/scripts/<path>'' is executed. | + | |
| - | All scripts are executed with parameter "start". | + | |
| - | |- | + | |
| - | ! action when "stop" | + | |
| - | | The appropriate script is executed with parameter "stop". | + | |
| - | |- | + | |
| - | ! examples | + | |
| - | | ''PRG'', ''PRG:/u01/scripts/kerberos.sh'', ''PRG:webserver.sh'' | + | |
| - | |} | + | |
| - | + | ||
| - | === CPKG === | + | |
| - | + | ||
| - | A specific cluster packages must be active in the cluster. | + | |
| - | + | ||
| - | {| | + | |
| - | ! definition | + | |
| - | | ''CPKG:<other_package>[:WAIT[:<m>]'' | + | |
| - | |- | + | |
| - | ! action when "start" | + | |
| - | | Only if the cluster package <other_package> is started on any node in the cluster | + | |
| - | then this package is started. | + | |
| - | If WAIT is specified, this package waits for a default time of <m> or 5 minutes. | + | |
| - | |- | + | |
| - | ! action when "stop" | + | |
| - | | none | + | |
| - | |- | + | |
| - | ! definition | + | |
| - | | ''CPKG:<other_package>[:START]'' | + | |
| - | |- | + | |
| - | ! action when "start" | + | |
| - | | If the cluster package <other_package> is not active on any node in the cluster then the <other_package> | + | |
| - | is started on the first cluster node defined for <other_package> in the PACKAGES file. | + | |
| - | |- | + | |
| - | ! action when "stop" | + | |
| - | | none | + | |
| - | |- | + | |
| - | ! definition | + | |
| - | | ''CPKG:<other_package>[:WAITSTART[:<m>]'' | + | |
| - | |- | + | |
| - | ! action when "start" | + | |
| - | | If the cluster package <other_package> is not active on any node in the cluster | + | |
| - | then wait for <m> or 5 minutes. if it is still not active after that delay, | + | |
| - | start <other_package> on the first cluster node defined for it in the PACKAGES file. | + | |
| - | |- | + | |
| - | ! action when "stop" | + | |
| - | | none | + | |
| - | |- | + | |
| - | ! examples | + | |
| - | | ''CPKG:database:WAIT'', ''CPKG:appserver:START'', ''CPKG:appserver:WAITSTART:10'' | + | |
| - | |} | + | |
| - | + | ||
| - | + | ||
| - | === !CPKG === | + | |
| - | + | ||
| - | To start this package, another specific package must not be active in the cluster. | + | |
| - | + | ||
| - | {| | + | |
| - | ! definition | + | |
| - | | ''!CPKG:<other_package>[:STOP]'' | + | |
| - | |- | + | |
| - | ! action when "start" | + | |
| - | | If package <other_package> is active on any cluster node, then this package is not started. | + | |
| - | If STOP is specified, the <other_package> is stopped and this package is started | + | |
| - | (the processing of the resource definition is continued). | + | |
| - | |- | + | |
| - | ! action when "stop" | + | |
| - | | none | + | |
| - | |- | + | |
| - | ! example | + | |
| - | | ''!CPKG:disturber:STOP'' | + | |
| - | |} | + | |
| - | + | ||
| - | + | ||
| - | === PKG === | + | |
| - | + | ||
| - | To start this package, another specific package must be active on **the current** cluster node. | + | |
| - | + | ||
| - | {| | + | |
| - | ! definition | + | |
| - | | ''PKG:<other_package>[:WAIT[:<m>]]'' | + | |
| - | |- | + | |
| - | ! action when "start" | + | |
| - | | Start the package only if the <other_package> is active on the current | + | |
| - | cluster node. If WAIT is specified, wait for <m> or 5 minutes for the | + | |
| - | <other_package> to become active. | + | |
| - | |- | + | |
| - | ! action when "stop" | + | |
| - | | none | + | |
| - | |- | + | |
| - | ! example | + | |
| - | | ''PKG:apache2'', ''PKG:apache2:WAIT:3'' | + | |
| - | |} | + | |
| - | + | ||
| - | + | ||
| - | === SPKG === | + | |
| - | + | ||
| - | Start a sub-package. | + | |
| - | + | ||
| - | {| | + | |
| - | ! definition | + | |
| - | | ''SPKG:<sub_package>:<node>'' | + | |
| - | |- | + | |
| - | ! action when "start" | + | |
| - | | Start the <sub_package> on <node> | + | |
| - | |- | + | |
| - | ! action when "stop" | + | |
| - | | | + | |
| - | |- | + | |
| - | ! example | + | |
| - | | '' '' | + | |
| - | |} | + | |