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2. Architecture
===============
The CGRateS suite consists of **five** software applications described below.
.. hlist::
:columns: 5
- cgr-engine
- cgr-loader
- cgr-console
- cgr-tester
- cgr-migrator
CGRateS has an internal cache.
::
"internal_cache" - cache
Operates with different external databases mentioned below.
::
"data_db" - MongoDB, Redis
"stor_db" - MongoDB, MySQL, PostgreSQL
.. hlist::
:columns: 1
- **data_db** - used to store runtime data ( eg: accounts )
- **stor_db** - used to store offline tariff plan(s) and CDRs
.. figure:: images/cgrates-arch.png
:alt: CGRateS Architecture
:align: Center
:scale: 75 %
CGRateS high level design
2.1. cgr-engine
---------------
Is the most important and complex component.
Customisable through the use of *json* configuration file(s),
it will start on demand **one or more** service(s), outlined below.
::
cgrates@OCS:~$ cgr-engine -help
Usage of cgr-engine:
-cdrs
Enforce starting of the cdrs daemon overwriting config
-config_dir string
Configuration directory path. (default "/etc/cgrates/")
-cpuprofile string
write cpu profile to file
-pid string
Write pid file
-rater
Enforce starting of the rater daemon overwriting config
-scheduler
Enforce starting of the scheduler daemon .overwriting config
-scheduled_shutdown string
shutdown the engine after this duration
-singlecpu
Run on single CPU core
-version
Prints the application version.
.. hint:: # cgr-engine -config_dir=/etc/cgrates
2.1.1. RALs service
~~~~~~~~~~~~~~~~~~~~
Responsible with the following tasks:
- Operates on balances.
- Computes prices for rating subjects.
- Monitors and executes triggers.
- LCR functionality
- Communicates via:
- RPC
- internal/in-process *within the same running* **cgr-engine** process.
- Operates with the following CGRateS database(s): ::
"data_db" - (dataDb)
"stor_db" - (cdrDb, loadDb)
- Config section in the CGRateS configuration file:
- ``"rals": {...}``
2.1.2. Scheduler service
~~~~~~~~~~~~~~~~~~~~~~~~
Used to execute periodic/scheduled tasks.
- Communicates via:
- internal/in-process *within the same running* **cgr-engine** process.
- Operates with the following CGRateS database(s): ::
"data_db" - (dataDb)
- Config section in the CGRateS configuration file:
- ``"scheduler": {...}``
2.1.3. SessionManager service
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Responsible with call control on the Telecommunication Switch side. Operates in two different modes (per call or globally):
- PREPAID
- Monitors call start.
- Checks balance availability for the call.
- Enforces global timer for a call at call-start.
- Executes routing commands for the call where that is necessary ( eg call un-park in case of FreeSWITCH).
- Periodically executes balance debits on call at the beginning of debit interval.
- Enforce call disconnection on insufficient balance.
- Refunds the balance taken in advance at the call stop.
- POSTPAID
- Executes balance debit on call-stop.
All call actions are logged into CGRateS's LogDB.
- Communicates via:
- RPC
- internal/in-process *within the same running* **cgr-engine** process.
- Operates with the following CGRateS database(s): ::
"stor_db" - (cdrDb)
2.1.4. DiameterAgent service
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Responsible for the communication with Diameter server via diameter protocol.
Despite the name it is a flexible **Diameter Server**.
- Communicates via:
- RPC
- internal/in-process *within the same running* **cgr-engine** process.
- Operates with the following CGRateS database(s): ::
- none
- Config section in the CGRateS configuration file:
- ``"diameter_agent": {...}``
2.1.5. CDR service
~~~~~~~~~~~~~~~~~~~
Centralized CDR server and CDR (raw or rated) **replicator**.
- Communicates via:
- RPC
- internal/in-process *within the same running* **cgr-engine** process.
- Operates with the following CGRateS database(s): ::
"stor_db" - (cdrDb)
"data_db" - (accountDb)
- Config section in the CGRateS configuration file:
- ``"cdrs": {...}``
2.1.6. CDRStats service
~~~~~~~~~~~~~~~~~~~~~~~
Computes real-time CDR stats. Capable with real-time fraud detection and mitigation with actions triggered.
- Communicates via:
- RPC
- internal/in-process *within the same running* **cgr-engine** process.
- Operates with the following CGRateS database(s): ::
"data_db" - (dataDb)
- Config section in the CGRateS configuration file:
- ``"cdrstats": {...}``
2.1.7. CDRC service
~~~~~~~~~~~~~~~~~~~
Gathers offline CDRs and post them to CDR Server - (CDRS component)
- Communicates via:
- RPC
- internal/in-process *within the same running* **cgr-engine** process.
- Operates with the following CGRateS database(s): ::
- none
- Config section in the CGRateS configuration file:
- ``"cdrc": {...}``
2.1.8. Aliases service
~~~~~~~~~~~~~~~~~~~~~~~
Generic purpose **aliasing** system.
Possible applications:
- Change destination name based on user or destination prefix matched.
- Change lcr supplier name based on the user calling.
- Locale specifics, ability to display specific tags in user defined language.
- Communicates via:
- RPC
- internal/in-process *within the same running* **cgr-engine** process.
- Operates with the following CGRateS database(s): ::
"data_db" - (accountDb)
- Config section in the CGRateS configuration file:
- ``"aliases": {...}``
2.1.9. User service
~~~~~~~~~~~~~~~~~~~~
Generic purpose **user** system to maintain user profiles (LDAP similarity).
- Communicates via:
- RPC
- internal/in-process *within the same running* **cgr-engine** process.
- Operates with the following CGRateS database(s): ::
"data_db" - (accountDb)
- Config section in the CGRateS configuration file:
- ``"users": {...}``
2.1.10. PubSub service
~~~~~~~~~~~~~~~~~~~~~~
PubSub service used to expose internal events to interested external components (eg: balance ops)
- Communicates via:
- RPC
- internal/in-process *within the same running* **cgr-engine** process.
- Operates with the following CGRateS database(s): ::
"data_db" - (accountDb)
- Config section in the CGRateS configuration file:
- ``"pubsubs": {...}``
2.1.11. Resource Limiter service
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Resource Limiter service used to limit resources during authorization (eg: maximum calls per destination for an account)
- Communicates via:
- RPC
- internal/in-process *within the same running* **cgr-engine** process.
- Operates with the following CGRateS database(s): ::
"data_db" - (accountDb)
- Config section in the CGRateS configuration file:
- ``"rls": {...}``
2.1.12. APIER RPC service
~~~~~~~~~~~~~~~~~~~~~~~~~
RPC service used to expose external access towards internal components.
- Communicates via:
- JSON/GOB over socket
- JSON over HTTP
- JSON over WebSocket
2.1.13. Cdre
~~~~~~~~~~~~
Component to retrieve rated CDRs from internal CDRs database.
- Communicates via:
- Operates with the following CGRateS database(s): ::
"stor_db" - (cdrDb)
- Config section in the CGRateS configuration file:
- ``"cdre": {...}``
2.1.14. Mailer
~~~~~~~~~~~~~~
TBD
- Communicates via:
- Operates with the following CGRateS database(s):
- Config section in the CGRateS configuration file:
- ``"mailer": {...}``
2.1.15. Suretax
~~~~~~~~~~~~~~~
TBD
- Communicates via:
- Operates with the following CGRateS database(s):
- Config section in the CGRateS configuration file:
- ``"suretax": {...}``
2.1.X Mediator service
~~~~~~~~~~~~~~~~~~~~~~
.. important:: This service is not valid anymore. Its functionality is replaced by CDRC and CDRS services.
Responsible to mediate the CDRs generated by Telecommunication Switch.
Has the ability to combine CDR fields into rating subject and run multiple mediation processes on the same record.
On Linux machines, able to work with inotify kernel subsystem in order to process the records close to real-time after the Switch has released them.
2.2. cgr-loader
---------------
Used for importing the rating information into the CGRateS database system.
Can be used to:
- Import information from **csv files** to **data_db**.
- Import information from **csv files** to **stor_db**. ``-to_stordb -tpid``
- Import information from **stor_db** to **data_db**. ``-from_stordb -tpid``
::
cgrates@OCS:~$ cgr-loader -help
Usage of cgr-loader:
-cdrstats_address string
CDRStats service to contact for data reloads, empty to disable automatic data reloads (default "127.0.0.1:2013")
-datadb_host string
The DataDb host to connect to. (default "127.0.0.1")
-datadb_name string
The name/number of the DataDb to connect to. (default "11")
-datadb_passwd string
The DataDb user's password.
-datadb_port string
The DataDb port to bind to. (default "6379")
-datadb_type string
The type of the DataDb database <redis> (default "redis")
-datadb_user string
The DataDb user to sign in as.
-dbdata_encoding string
The encoding used to store object data in strings (default "msgpack")
-disable_reverse_mappings
Will disable reverse mappings rebuilding
-dry_run
When true will not save loaded data to dataDb but just parse it for consistency and errors.
-flushdb
Flush the database before importing
-from_stordb
Load the tariff plan from storDb to dataDb
-load_history_size int
Limit the number of records in the load history (default 10)
-migrate_rc8 string
Migrate Accounts, Actions, ActionTriggers, DerivedChargers, ActionPlans and SharedGroups to RC8 structures, possible values: *all,acc,atr,act,dcs,apl,shg
-path string
The path to folder containing the data files (default "./")
-rater_address string
Rater service to contact for cache reloads, empty to disable automatic cache reloads (default "127.0.0.1:2013")
-runid string
Uniquely identify an import/load, postpended to some automatic fields
-stats
Generates statsistics about given data.
-stordb_host string
The storDb host to connect to. (default "127.0.0.1")
-stordb_name string
The name/number of the storDb to connect to. (default "cgrates")
-stordb_passwd string
The storDb user's password. (default "CGRateS.org")
-stordb_port string
The storDb port to bind to. (default "3306")
-stordb_type string
The type of the storDb database <mysql> (default "mysql")
-stordb_user string
The storDb user to sign in as. (default "cgrates")
-timezone string
Timezone for timestamps where not specified <""|UTC|Local|$IANA_TZ_DB> (default "Local")
-to_stordb
Import the tariff plan from files to storDb
-validate
When true will run various check on the loaded data to check for structural errors
-verbose
Enable detailed verbose logging output
-version
Prints the application version.
.. hint:: # cgr-loader -flushdb
.. hint:: # cgr-loader -verbose -datadb_port="27017" -datadb_type="mongo"
2.3. cgr-console
----------------
Command line tool used to interface with the RALs service. Able to execute **sub-commands**.
::
cgrates@OCS:~$ cgr-console -help
Usage of cgr-console:
-rpc_encoding string
RPC encoding used <gob|json> (default "json")
-server string
server address host:port (default "127.0.0.1:2012")
-verbose
Show extra info about command execution.
-version
Prints the application version.
rif@grace:~$ cgr-console help_more
2013/04/13 17:23:51
Usage: cgr-console [cfg_opts...{-h}] <status|get_balance>
.. hint:: # cgr-console status
2.4. cgr-tester
---------------
Command line stress testing tool.
::
cgrates@OCS:~$ cgr-tester --help
Usage of cgr-tester:
-datadb_host string
The DataDb host to connect to. (default "127.0.0.1")
-datadb_name string
The name/number of the DataDb to connect to. (default "11")
-datatdb_passwd string
The DataDb user's password.
-datadb_port string
The DataDb port to bind to. (default "6379")
-datadb_type string
The type of the DataDb database <redis> (default "redis")
-datadb_user string
The DataDb user to sign in as.
-category string
The Record category to test. (default "call")
-cpuprofile string
write cpu profile to file
-dbdata_encoding string
The encoding used to store object data in strings. (default "msgpack")
-destination string
The destination to use in queries. (default "1002")
-json
Use JSON RPC
-load_history_size int
Limit the number of records in the load history (default 10)
-memprofile string
write memory profile to this file
-parallel int
run n requests in parallel
-rater_address string
Rater address for remote tests. Empty for internal rater.
-runs int
stress cycle number (default 10000)
-subject string
The rating subject to use in queries. (default "1001")
-tenant string
The type of record to use in queries. (default "cgrates.org")
-tor string
The type of record to use in queries. (default "*voice")
.. hint:: # cgr-tester -runs=10000
2.5. cgr-migrator
-----------------
Command line migration tool.
::
cgrates@OCS:~$ cgr-migrator --help
Usage of cgr-migrator:
-datadb_host string
The DataDb host to connect to. (default "192.168.100.40")
-datadb_name string
The name/number of the DataDb to connect to. (default "10")
-datadb_passwd string
The DataDb user's password.
-datadb_port string
The DataDb port to bind to. (default "6379")
-datadb_type string
The type of the DataDb database <redis> (default "redis")
-datadb_user string
The DataDb user to sign in as. (default "cgrates")
-dbdata_encoding string
The encoding used to store object data in strings (default "msgpack")
-dry_run
When true will not save loaded data to dataDb but just parse it for consistency and errors.(default "false")
-load_history_size int
Limit the number of records in the load history (default 10)
-migrate string
Fire up automatic migration *to use multiple values use ',' as separator
<*set_versions|*cost_details|*accounts|*actions|*action_triggers|*action_plans|*shared_groups>
-old_datadb_host string
The DataDb host to connect to. (default "192.168.100.40")
-old_datadb_name string
The name/number of the DataDb to connect to. (default "10")
-old_datadb_passwd string
The DataDb user's password.
-old_datadb_port string
The DataDb port to bind to. (default "6379")
-old_datadb_type string
The type of the DataDb database <redis>
-old_datadb_user string
The DataDb user to sign in as. (default "cgrates")
-old_dbdata_encoding string
The encoding used to store object data in strings
-old_load_history_size int
Limit the number of records in the load history
-old_stordb_host string
The storDb host to connect to. (default "192.168.100.40")
-old_stordb_name string
The name/number of the storDb to connect to. (default "cgrates")
-old_stordb_passwd string
The storDb user's password.
-old_stordb_port string
The storDb port to bind to. (default "3306")
-old_stordb_type string
The type of the storDb database <mysql|postgres>
-old_stordb_user string
The storDb user to sign in as. (default "cgrates")
-stats
Generates statsistics about given data.(default "false")
-stordb_host string
The storDb host to connect to. (default "192.168.100.40")
-stordb_name string
The name/number of the storDb to connect to. (default "cgrates")
-stordb_passwd string
The storDb user's password.
-stordb_port string
The storDb port to bind to. (default "3306")
-stordb_type string
The type of the storDb database <mysql|postgres> (default "mysql")
-stordb_user string
The storDb user to sign in as. (default "cgrates")
-verbose
Enable detailed verbose logging output.(default "false")
-version
Prints the application version.
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