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Purpose
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MyOps-Query allows an operator to very easily define and collect new attributes of a running system, and it provides a simple query interface to report and select these observations. MyOps-Query complements the existing and established mechanisms already running on PlanetLab, such as CoMon and Func().
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Example Queries
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The following are example queries that you can perform with MyOps.
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Many other queries are possible by manipulating the query URL.
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Supported Operators
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+ - == String comparison for equivalence.
+ - != String comparison for non-equivalence
+ - <= Given a number, <= converts the parameter into a number and compares it to the specified value. i.e. "root_free_disk<=0.2"
+ - >= Given a number, >= converts the parameter into a number and compares it to the specified value. i.e. "root_free_disk>=0.2"
+ - =~ Given a regular expression, =~ will return rows when the attribute matches this pattern.
+ - !~ Given a regular expression, !~ will return rows when the attribute does not match this pattern.
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Supported Conjunctions
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+ - && Logical 'and' for combining two or more simple operators. Also, can be entered on the url as %26%26, AND, or %%.
+ - || Logical 'or'. Also can be entered
+ on the url as OR.
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Supported Parameters
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+ - fields a comma separated list of attribute names to report.
+ - filter a simple logic expressions for filtering which values are returned.
+ - within only return node records that have been updated in less than within seconds. (default is 3 hours (10800 sec))
+ - skip_header do not print the attribute names as the first line.
+ - rpmpattern a pattern to match against the rpm_versions attribute. Useful for checking a single package version.
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