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https://issues.apache.org/jira/browse/FLINK-9486?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16536945#comment-16536945
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ASF GitHub Bot commented on FLINK-9486:
---------------------------------------
Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/6276#discussion_r201010986
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/state/KeyGroupedInternalPriorityQueue.java
---
@@ -0,0 +1,31 @@
+/*
+ * 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 javax.annotation.Nonnull;
+
+import java.util.Set;
+
+/**
+ *
--- End diff --
Even if it is a temporary commit please add java docs in the commit where
you add the interface.
> Introduce TimerState in keyed state backend
> -------------------------------------------
>
> Key: FLINK-9486
> URL: https://issues.apache.org/jira/browse/FLINK-9486
> Project: Flink
> Issue Type: Sub-task
> Components: State Backends, Checkpointing
> Reporter: Stefan Richter
> Assignee: Stefan Richter
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.6.0
>
>
> This is the first implementation subtask.
> Goal of this PR is to introduce a timer state that is registered with the
> keyed state backend, similar to other forms of keyed state.
> For the {{HeapKeyedStateBackend}}, this state lives on the same level as the
> {{StateTable}} that hold other forms of keyed state, and the implementation
> is basically backed by {{InternalTimerHeap}}.
> For {{RocksDBKeyedStateBackend}}, in this first step, we also introduce this
> state, outside of RocksDB and based upon {{InternalTimerHeap}}. This is an
> intermediate state, and we will later also implement the alternative to store
> the timers inside a column families in RocksDB. However, by taking this step,
> we could also still offer the option to have RocksDB state with heap-based
> timers.
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