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doc/source/reference/parameters/omprog-forcesingleinstance.rst
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Rainer Gerhards
omprog: split parameter docs into reference pages
20 авг 2025, 15:50
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20 авг 2025, 15:50
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.. _param-omprog-forcesingleinstance: .. _omprog.parameter.action.forcesingleinstance: forceSingleInstance =================== .. index:: single: omprog; forceSingleInstance single: forceSingleInstance .. summary-start Runs only one instance of the program regardless of worker threads. .. summary-end This parameter applies to :doc:`../../configuration/modules/omprog`. :Name: forceSingleInstance :Scope: action :Type: boolean :Default: action=off :Required?: no :Introduced: v8.1.6 Description ----------- By default, the omprog action will start an instance (process) of the external program per worker thread (the maximum number of worker threads can be specified with the :doc:`queue.workerThreads <../../rainerscript/queue_parameters>` parameter). Moreover, if the action is associated to a :doc:`disk-assisted queue <../../concepts/queues>`, an additional instance will be started when the queue is persisted, to process the items stored on disk. If you want to force a single instance of the program to be executed, regardless of the number of worker threads or the queue type, set this flag to "on". This is useful when the external program uses or accesses some kind of shared resource that does not allow concurrent access from multiple processes. .. note:: Before version v8.38.0, this parameter had no effect. Action usage ------------ .. _param-omprog-action-forcesingleinstance: .. _omprog.parameter.action.forcesingleinstance-usage: .. code-block:: rsyslog action(type="omprog" forceSingleInstance="on") Notes ----- - Legacy documentation referred to the type as ``binary``; this maps to ``boolean``. See also -------- See also :doc:`../../configuration/modules/omprog`.