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https://issues.apache.org/jira/browse/FLINK-5823?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16219561#comment-16219561
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ASF GitHub Bot commented on FLINK-5823:
---------------------------------------
Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/4907#discussion_r146988381
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/state/ConfigurableStateBackend.java
---
@@ -0,0 +1,45 @@
+/*
+ * 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.flink.runtime.state;
+
+import org.apache.flink.configuration.Configuration;
+import org.apache.flink.configuration.IllegalConfigurationException;
+
+/**
+ *An interface for state backends that pick up additional parameters from
a configuration.
+ */
+public interface ConfigurableStateBackend {
+
+ /**
+ * Creates a variant of the state backend that applies additional
configuration parameters.
+ *
+ * <p>Settings that were directly done on the original state backend
object in the application
+ * program typically have precedence over setting picked up from the
configuration.
+ *
+ * <p>If no configuration is applied, or if the method directly applies
configuration values to
+ * the (mutable) state backend object, this method may return the
original state backend object.
+ * Otherwise it typically returns a modified copy.
+ *
+ * @param config The configuration to pick the values from.
+ * @return A copy of th
--- End diff --
Sentence is trailing off.
> Store Checkpoint Root Metadata in StateBackend (not in HA custom store)
> -----------------------------------------------------------------------
>
> Key: FLINK-5823
> URL: https://issues.apache.org/jira/browse/FLINK-5823
> Project: Flink
> Issue Type: Sub-task
> Components: State Backends, Checkpointing
> Reporter: Stephan Ewen
> Assignee: Stephan Ewen
> Priority: Blocker
> Fix For: 1.4.0
>
>
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