DPOD system services are operating system processes performing various processing and maintenance tasks.
Depending on your system's processing profile requirements, some services may have more than a single instance.

DPOD's Internal services are divided into the following groups:

Collector Agents – These services collect data (either passively or actively by periodic polling) from monitored DataPower Gateways. The data is then and forwarded to DPOD's Big Data Store storage.
Database – These services host database services for all the data stored in DPOD, (e.g. raw logs and configuration data). Refer to Components for more detail about the database.
Other – Services which perform various other tasks.

The following tables list the various DPOD's services and their function

Collector Agents

Service Name	Function
Syslog Agent *	Syslog Agents passively receive raw log records from monitored DataPower Gateways, process them and store them into the Big Data Store. The number of process instances for this agent depends on the installation requirements.
Syslog Keepalive	The Syslog Keepalive agent monitors the health of a Syslog Agent. The keepalive agent periodically sends syslog records to the syslog agent, which writes those records to the Big Data Store. The Keepalive agent later verifies the Syslog's agent correct processing by reading those entries from the store and verifying they have been written correctly. Note: A successful Keepalive check only means that the syslog agent is functioning properly, and that it can be write data to the Big Data store. It does not imply that data is being received from monitored devices (keepalive is a local service and will be successful even when the network is down)
WS-M Agent *	WS-M Agents passively receive message payload information from monitored DataPower Gateways on which WS-M recording has been enabled. Payloads are processed and stored in a dedicated index set inside the Big Data store. The number of process instances for this agent depends on the installation requirements.
WS-M Keepalive	The WS-M Keepalive monitors the health of a WS-M Agent, in the same way that the Syslog Keepalive service above works.
Device Resources Agent	This service periodically polls device resource information from monitored DataPower Gateways. The data polled is resource consumption related and includes metrics for CPU, memory, file system, hardware etc.
Service Resources Agent	This service periodically polls service resource information (e.g memory consumption) and configuration details from monitored DataPower Gateways.

Database

Service Name	Function
Configuration Database	Manages DPOD's internal SQL database used to retain configuration data, agent states etc.
Big-Data data nodes *	Manages various functions of the Big Data Store.
Big-Data data retention	Performs regular maintenance tasks (e.g. for indexes or storage) on the Big Data Store.

Other

Service Name	Function
Console UI	Hosts and manages the web-based Console used to interact with DPOD UI
Reports	Runs and formats user Reports.

* These agents can have more than one instance, appearing as multiple processes in the operating system.

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