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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-9489) Checkpoint timers as part of managed keyed state instead of raw keyed state
Date Sat, 14 Jul 2018 16:27:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-9489?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16544262#comment-16544262
] 

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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