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https://issues.apache.org/jira/browse/FLINK-9489?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16544262#comment-16544262
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ASF GitHub Bot commented on FLINK-9489:
---------------------------------------

Github user sihuazhou commented on a diff in the pull request:

    https://github.com/apache/flink/pull/6333#discussion_r202519294
  
    --- Diff: 
flink-runtime/src/main/java/org/apache/flink/runtime/state/PriorityComparable.java
 ---
    @@ -0,0 +1,35 @@
    +/*
    + * 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;
    +
    +/**
    + *
    + * @param <T>
    --- End diff --
    
    Description for `T` is missing


> Checkpoint timers as part of managed keyed state instead of raw keyed state
> ---------------------------------------------------------------------------
>
>                 Key: FLINK-9489
>                 URL: https://issues.apache.org/jira/browse/FLINK-9489
>             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
>
>
> Timer state should now become part of the keyed state backend snapshot, i.e., 
> stored inside the managed keyed state. This means that we have to connect our 
> preparation for asynchronous checkpoints with the backend, so that the timers 
> are written as part of the state for each key-group. This means that we will 
> also free up the raw keyed state an might expose it to user functions in the 
> future.



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