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https://issues.apache.org/jira/browse/FLINK-9887?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16566553#comment-16566553
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ASF GitHub Bot commented on FLINK-9887:
---------------------------------------

tzulitai commented on a change in pull request #6467: [FLINK-9887] Ensure 
serializer upgrades work with timer service remake
URL: https://github.com/apache/flink/pull/6467#discussion_r207163024
 
 

 ##########
 File path: 
flink-streaming-java/src/main/java/org/apache/flink/streaming/api/operators/InternalTimeServiceManager.java
 ##########
 @@ -46,12 +46,11 @@
 @Internal
 public class InternalTimeServiceManager<K> {
 
-       //TODO guard these constants with a test
-       private static final String TIMER_STATE_PREFIX = "_timer_state";
-       private static final String PROCESSING_TIMER_PREFIX = 
TIMER_STATE_PREFIX + "/processing_";
-       private static final String EVENT_TIMER_PREFIX = TIMER_STATE_PREFIX + 
"/event_";
 
-       private final int totalKeyGroups;
+       static final String TIMER_STATE_PREFIX = "_timer_state";
 
 Review comment:
   Add `@VisibleForTesting` ?

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> Ensure serializer upgrades work with timer service remake
> ---------------------------------------------------------
>
>                 Key: FLINK-9887
>                 URL: https://issues.apache.org/jira/browse/FLINK-9887
>             Project: Flink
>          Issue Type: Sub-task
>          Components: State Backends, Checkpointing
>    Affects Versions: 1.6.0
>            Reporter: Stefan Richter
>            Assignee: Stefan Richter
>            Priority: Blocker
>              Labels: pull-request-available
>             Fix For: 1.6.0
>
>




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