Apache NiFi - Administration

Apache NiFi offers support to multiple tools like ambari, zookeeper for administration purposes. NiFi also provides configuration in nifi.properties file to set up HTTPS and other things for administrators.

zookeeper

NiFi itself does not handle voting process in cluster. This means when a cluster is created, all the nodes are primary and coordinator. So, zookeeper is configured to manage the voting of primary node and coordinator. The nifi.properties file contains some properties to setup zookeeper.

S.No.	Property name	Default Value	description
1	nifi.state.management.embedded.zookeeper. properties	./conf/zookeeper.properties	To specify the path and name of zookeeper property file.
2	nifi.zookeeper.connect.string	empty	To specify the connection string of zookeeper.
3	nifi.zookeeper.connect.timeout	3 secs	To specify the connection timeout of zookeeper with NiFi.
4	nifi.zookeeper.session.timeout	3 secs	To specify the session timeout of zookeeper with NiFi.
5	nifi.zookeeper.root.node	/nifi	To specify root node for zookeeper.
6	nifi.zookeeper.auth.type	empty	To specify authentication type for zookeeper.

Enable HTTPS

To use NiFi over HTTPS, administrators have to generate keystore and truststore and set some properties in the nifi.properties file. The TLS toolkit can be used to generate all the necessary keys to enable HTTPS in apache NiFi.

S.No.	Property name	Default Value	description
1	nifi.web.https.port	empty	To specify https port number.
2	nifi.web.https.network.interface.default	empty	Default interface for https in NiFi.
3	nifi.security.keystore	empty	To specify the path and file name of keystore.
4	nifi.security.keystoreType	empty	To specify the type of keystore type like JKS.
5	nifi.security.keystorePasswd	empty	To specify keystore password.
6	nifi.security.truststore	empty	To specify the path and file name of truststore.
7	nifi.security.truststoreType	empty	To specify the type of truststore type like JKS.
8	nifi.security.truststorePasswd	empty	To specify truststore password.

Other properties for administration

There are some other properties, which are used by administrators to manage the NiFi and for its service continuity.

S.No.	Property name	Default Value	description
1	nifi.flowcontroller.graceful.shutdown.period	10 sec	To specify the time to gracefully shutdown the NiFi flowcontroller.
2	nifi.administrative.yield.duration	30 sec	To specify the administrative yield duration for NiFi.
3	nifi.authorizer.configuration.file	./conf/authorizers.xml	To specify the path and file name of authorizer configuration file.
4	nifi.login.identity.provider.configuration.file	./conf/login-identity-providers.xml	To specify the path and file name of login identity provider configuration file.