Apache-nifi-configuration

Apache NiFi - Configuration

Apache NiFi est une plateforme hautement configurable. Le fichier nifi.properties dans le répertoire conf

contient la plupart de la configuration.

Les propriétés couramment utilisées d’Apache NiFi sont les suivantes -

Propriétés essentielles

Cette section contient les propriétés, qui sont obligatoires pour exécuter une instance NiFi.

S.No.	Property name	Default Value	description
1	nifi.flow.configuration.file	./conf/flow.xml.gz	This property contains the path to flow.xml file. This file contains all the data flows created in NiFi.
2	nifi.flow.configuration.archive.enabled	true	This property is used to enable or disable archiving in NiFi.
3	nifi.flow.configuration.archive.dir	./conf/archive/	This property is used to specify the archive directory.
4	nifi.flow.configuration.archive.max.time	30 days	This is used to specify the retention time for archiving content.
5	nifi.flow.configuration.archive.max.storage	500 MB	it contains the maximum size of archiving directory can grow.
6	nifi.authorizer.configuration.file	./conf/authorizers.xml	To specify the authorizer configuration file, which is used for user authorization.
7	nifi.login.identity.provider.configuration.file	./conf/login-identity-providers.xml	This property contains the configuration of login identity providers,
8	nifi.templates.directory	./conf/templates	This property is used to specify the directory, where NiFi templates will be stored.
9	nifi.nar.library.directory	./lib	This property contains the path to library, which NiFi will use to load all the components using NAR files present in this lib folder.
10	nifi.nar.working.directory	./work/nar/	This directory will be storing the unpacked nar files, once NiFi processes them.
11	nifi.documentation.working.directory	./work/docs/components	This directory contains the documentation of all components.

Gestion d’état

Ces propriétés sont utilisées pour stocker l’état des composants utiles pour démarrer le traitement, là où les composants sont restés après un redémarrage et dans la prochaine planification en cours d’exécution.

S.No.	Property name	Default Value	description
1	nifi.state.management.configuration.file	./conf/state-management.xml	This property contains the path to state-management.xml file. This file contains all component state present in the data flows of that NiFi instance.
2	nifi.state.management.provider.local	local-provider	It contains the ID of the local state provider.
3	nifi.state.management.provider.cluster	zk-provider	This property contains the ID of the cluster-wide state provider. This will be ignored if NiFi is not clustered but must be populated if running in a cluster.
4	nifi.state.management. embedded. zookeeper. start	false	This property specifies whether or not this instance of NiFi should run an embedded ZooKeeper server.
5	nifi.state.management. embedded. zookeeper.properties	./conf/zookeeper.properties	This property contains the path of the properties file that provides the ZooKeeper properties to use if <nifi.state.management. embedded. zookeeper. start> is set to true.

Référentiel FlowFile

Voyons maintenant les détails importants du référentiel FlowFile -

S.No.	Property name	Default Value	description
1	nifi.flowfile.repository. implementation	org.apache.nifi. controller. repository. WriteAhead FlowFileRepository	This property is used to specify either to store the flowfiles in memory or disk. If a user want to stores the flowfiles in memory then change to "org.apache.nifi.controller. repository.VolatileFlowFileRepository".
2	nifi.flowfile.repository.directory	./flowfile_repository	To specify the directory for flowfile repository.