Werk #337: New header for limiting the execution time of a query

Component	Livestatus
Title	New header for limiting the execution time of a query
Date	Dec 16, 2013
Checkmk Editon	Checkmk Raw (CRE)
Checkmk Version	1.2.5i1
Level	Trivial Change
Class	New Feature
Compatibility	Compatible - no manual interaction needed

The new Livestatus header Timelimit: sets an upper limit for the execution time of a query. Specify the timeout as a number of seconds. The following query will stop after 5000 lines of output. If that takes longer than 30 seconds, then the query fails with no output:

query.lql

GET log
Columns: message
Timelimit: 30
Limit: 5000

Please note, that Limit: and Timelimit: have a different behaviour when the limit is reached:

Limit: end the query, output all rows that have been found so far.

Timelimit: abort the query with an error, do not output any lines.

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