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https://issues.apache.org/jira/browse/NIFI-2078?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15394344#comment-15394344
]
ASF GitHub Bot commented on NIFI-2078:
--------------------------------------
Github user JPercivall commented on a diff in the pull request:
https://github.com/apache/nifi/pull/563#discussion_r72315293
--- Diff:
nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-framework-cluster/src/main/java/org/apache/nifi/cluster/coordination/http/endpoints/ClearComponentStateEndpointMerger.java
---
@@ -0,0 +1,71 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.nifi.cluster.coordination.http.endpoints;
+
+import org.apache.nifi.cluster.manager.NodeResponse;
+import org.apache.nifi.cluster.protocol.NodeIdentifier;
+import org.apache.nifi.web.api.entity.ClearComponentStateResultEntity;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import java.net.URI;
+import java.util.Map;
+import java.util.Set;
+import java.util.regex.Pattern;
+
+public class ClearComponentStateEndpointMerger extends
AbstractSingleEntityEndpoint<ClearComponentStateResultEntity> {
+ public static final Pattern PROCESSOR_STATE_URI_PATTERN =
Pattern.compile("/nifi-api/processors/[a-f0-9\\-]{36}/state/clear-requests");
+ public static final Pattern CONTROLLER_SERVICE_STATE_URI_PATTERN =
Pattern.compile("/nifi-api/controller-services/[a-f0-9\\-]{36}/state/clear-requests");
+ public static final Pattern REPORTING_TASK_STATE_URI_PATTERN =
Pattern.compile("/nifi-api/reporting-tasks/[a-f0-9\\-]{36}/state/clear-requests");
--- End diff --
Hard coding these URI patterns feels wrong. Any changes to these URIs in
another PR could mess this up entirely without anyone noticing.
> State management for processors whose states are managed externally
> -------------------------------------------------------------------
>
> Key: NIFI-2078
> URL: https://issues.apache.org/jira/browse/NIFI-2078
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework
> Reporter: Koji Kawamura
> Assignee: Koji Kawamura
> Fix For: 1.0.0
>
>
> Inherently by the nature of a given processor it may involve state managed by
> itself (using nifi state management), or can be managed by some external
> service it interacts with (kafka's offset), and theoretically some might have
> both going on. With the new state management, we're giving users a way to
> reset state managed by nifi for a given processor. But it doesnt apply to
> those processors who have external state.
> we should consider offering a way to reset state that allows a processor to
> call out to whatever external store it impacts
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