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https://issues.apache.org/jira/browse/BEAM-13236?focusedWorklogId=687887&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-687887
 ]

ASF GitHub Bot logged work on BEAM-13236:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 30/Nov/21 09:42
            Start Date: 30/Nov/21 09:42
    Worklog Time Spent: 10m 
      Work Description: mosche commented on a change in pull request #15955:
URL: https://github.com/apache/beam/pull/15955#discussion_r759097825



##########
File path: 
sdks/java/io/kinesis/src/main/java/org/apache/beam/sdk/io/kinesis/KinesisIO.java
##########
@@ -1067,8 +1063,11 @@ private void checkForFailures(String message) throws 
IOException {
 
       @Teardown
       public void teardown() throws Exception {
-        if (producer != null && producer.getOutstandingRecordsCount() > 0) {
-          producer.flushSync();
+        if (producer != null) {
+          if (producer.getOutstandingRecordsCount() > 0) {
+            producer.flushSync();
+          }
+          producer.destroy();
         }
         producer = null;

Review comment:
       Thats absolutely clear 👍 
   
   > some execution engines write at parallelism one resulting into a single 
instance of the write DoFn
   
   Though my question is how could the execution engine distinguish a DoFn that 
implements a write from any other DoFn to reduce parallelism and accomplish the 
above?




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Issue Time Tracking
-------------------

    Worklog Id:     (was: 687887)
    Time Spent: 5h 10m  (was: 5h)

> Properly close kinesis producer on teardown
> -------------------------------------------
>
>                 Key: BEAM-13236
>                 URL: https://issues.apache.org/jira/browse/BEAM-13236
>             Project: Beam
>          Issue Type: Task
>          Components: io-java-kinesis
>            Reporter: Moritz Mack
>            Assignee: Moritz Mack
>            Priority: P2
>              Labels: aws, ios, kinesis
>          Time Spent: 5h 10m
>  Remaining Estimate: 0h
>
> Each KPL producer uses it's own native deamon, so properly cleaning up once 
> not used anymore is important.



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