Pierre Villard created NIFI-11776:
-------------------------------------
Summary: Composite Cluster State Provider
Key: NIFI-11776
URL: https://issues.apache.org/jira/browse/NIFI-11776
Project: Apache NiFi
Issue Type: New Feature
Components: Core Framework
Reporter: Pierre Villard
Fix For: 2.latest
Currently, in state-management.xml, we can configure an instance of a local
provider and a instances of a cluster provider.
We should introduce the concept of composite cluster provider (similar to what
we do for user group authorizers). This would give the option to specify
multiple cluster providers. NiFi would always read the state from the primary
cluster provider but would write state to all configured cluster providers.
The configuration could be something like:
{code:java}
<cluster-provider>
<id>zk-provider-1</id>
<class>org.apache.nifi.controller.state.providers.zookeeper.ZooKeeperStateProvider</class>
<property name="Connect String"></property>
<property name="Root Node">/nifi</property>
<property name="Session Timeout">10 seconds</property>
<property name="Access Control">Open</property>
</cluster-provider>
<cluster-provider>
<id>zk-provider-2</id>
<class>org.apache.nifi.controller.state.providers.zookeeper.ZooKeeperStateProvider</class>
<property name="Connect String"></property>
<property name="Root Node">/nifi</property>
<property name="Session Timeout">10 seconds</property>
<property name="Access Control">Open</property>
</cluster-provider>
<cluster-provider>
<id>composite-provider</id>
<class>org.apache.nifi.controller.state.providers.CompositeStateProvider</class>
<property name="Primary State Provider">zk-provider-1</property>
<property name="Secondary State Provider">zk-provider-2</property>
</cluster-provider> {code}
And, in nifi.properties:
{code:java}
nifi.state.management.provider.cluster=composite-provider{code}
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
