configsnapshot - Generates a configuration snapshot for a Torrus tree.

torrus configsnapshot --tree=TREENAME [options...]

This command generates a configuration snapshot from current datasources for tree TREENAME. The output is an XML file, ready for compilation, representing all datasources, monitors and tokensets of a given tree. The snapshot does not include view definitions. Templates and file patterns are expanded inside the file. It does not require any other XML configuration files, except for defaults.xml and your custom view definitions.

Warning: CWconfigsnapshot from RRFW release 0.1.5 will not work correctly with databases from previous releases. Use RRFW release CW0.1.4bf2 instead. CWconfigsnapshot utility from RRFW release 0.1.4bf2 does not preserve aliases.

This utility is useful in Torrus upgrade process. In case when RRD files structure is changing in Torrus default templates, and user(s) demand to preserve the historical data, the following steps could be done:

•

Stop the collector and monitor processes.

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Install newest Torrus software and do not run CWcompilexml immediately.

•

Create snapshots of the trees that you want to preserve for historical reasons:

  torrus configsnapshot --tree=myrouters \
    --out=/etc/torrus/xmlconfig/myrouters-snapshot.xml

•

If needed, move the existing RRD files into different directory. Then change the CWdata-dir parameters in the snapshot XML accordingly.

•

Create a new tree with only the snapshot file in it. Compile the tree.

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At this stage, it is up to the user to decide wether to continue running the collector and monitor daemons for this new tree. The old data may be preserved for historical reference, and collector may be run with the newest tree structure and definitions.

--out=FILE

Sets the output file to FILE. Default is snapshot.xml.

--verbose

Displays some extra information.

--help

Displays a help message.

/usr/share/torrus/xmlconfig/defaults.xml

XML configuration file with default settings for the datasources and tokensets, as well as default view definitions.

snapshot.xml

Default configsnapshot output file.

torrus(8), torrus_compilexml(8)

See more documentation at Torrus home page: http://torrus.org

Stanislav Sinyagin <ssinyagin@yahoo.com>