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150 lines
4.4 KiB
ReStructuredText
150 lines
4.4 KiB
ReStructuredText
.. _ThresholdS:
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ThresholdS
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==========
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**ThresholdS** is a standalone subsystem within **CGRateS** responsible to execute a list of *Actions* for a specific event received to process. It is accessed via `CGRateS RPC APIs <https://godoc.org/github.com/cgrates/cgrates/apier/>`_.
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As most of the other subsystems, it is performance oriented, stored inside *DataDB* but cached inside the *cgr-engine* process.
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Caching can be done dynamically/on-demand or at start-time/precached and it is configurable within *cache* section in the :ref:`JSON configuration <configuration>`.
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Processing logic
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----------------
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When a new *Event* is received, **ThresholdS** will pass it to :ref:`FilterS` in order to find all *SupplierProfiles* matching the *Event*.
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As a result of the selection process we will get a list of :ref:`Thresholds<Threshold>` matching the *Event* and are active at the *EventTime*.
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APIs logic
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----------
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GetThresholdIDs
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^^^^^^^^^^^^^^^
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Returns a list of *ThresholdIDs* configured on a *Tenant*.
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GetThresholdsForEvent
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^^^^^^^^^^^^^^^^^^^^^
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Returns a list of :ref:`Thresholds<Threshold>` matching the event.
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GetThreshold
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^^^^^^^^^^^^
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Returns a specific :ref:`Threshold` based on it's *Tenant* and *ID*.
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ProcessEvent
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^^^^^^^^^^^^
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Technically processes the *Event*, executing all the *Actions* configured within all the matching :ref:`Thresholds<Threshold>`.
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Parameters
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----------
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ThresholdS
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^^^^^^^^^^
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**ThresholdS** is the **CGRateS** component responsible for handling the :ref:`Thresholds<Threshold>`.
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It is configured within **thresholds** section from :ref:`JSON configuration <configuration>` via the following parameters:
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enabled
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Will enable starting of the service. Possible values: <true|false>.
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store_interval
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Time interval for backing up the thresholds into *DataDB*.
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indexed_selects
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Enable profile matching exclusively on indexes. If not enabled, the :ref:`Thresholds<Threshold>` are checked one by one which for a larger number can slow down the processing time. Possible values: <true|false>.
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string_indexed_fields
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Query string indexes based only on these fields for faster processing. If commented out, each field from the event will be checked against indexes. If defined as empty list, no fields will be checked.
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prefix_indexed_fields
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Query prefix indexes based only on these fields for faster processing. If defined as empty list, no fields will be checked.
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nested_fields
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Applied when all event fields are checked against indexes, and decides whether subfields are also checked.
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.. _ThresholdProfile:
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ThresholdProfile
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^^^^^^^^^^^^^^^^
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Contains the configuration to create a :ref:`Threshold`. Following fields can be defined:
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Tenant
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The tenant on the platform (one can see the tenant as partition ID).
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ID
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The profile identificator.
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FilterIDs
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List of *FilterProfileIDs* which should match in order to consider the profile matching the event.
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ActivationInterval
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The time interval when this profile becomes active. If undefined, the profile is always active. Other options are start time, end time or both.
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MaxHits
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Limit number of hits for this threshold. Once this is reached, the threshold is considered disabled.
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MinHits
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Only execute actions after this number is reached.
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MinSleep
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Disable the threshold for consecutive hits for the duration of *MinSleep*.
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Blocker
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Do not process thresholds who's *Weight* is lower.
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Weight
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Sorts the execution of multiple thresholds matching the event. The higher the *Weight* is, the higher the priority to be executed.
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ActionIDs
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List of *Actions* to execute for this threshold.
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Async
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If true, do not wait for actions to complete.
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.. _Threshold:
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Threshold
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^^^^^^^^^
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Represents one threshold, instantiated from a :ref:`ThresholdProfile`. It contains the following fields:
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Tenant
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The tenant on the platform (one can see the tenant as partition ID).
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ID
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The threshold identificator.
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Hits
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Number of hits so far.
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Snooze
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If initialized, it will contain the time when this threshold will become active again.
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Use cases
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---------
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* Improve network transparency and automatic reaction to outages monitoring stats produced by :ref:`StatS`.
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* Monitor active channels used by a supplier/customer/reseller/destination/weekends/etc out of :ref:`ResourceS` events.
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* Monitor balance consumption out of *Account* events.
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* Monitor calls out of :ref:`CDRs` events or :ref:`SessionS`.
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* Fraud detection with automatic mitigation based of all events mentioned above. |