[jira] [Created] (FLINK-17192) java.lang.RuntimeException: Error obtaining the sorted input: Thread 'SortMerger Reading Thread' terminated due to an exception: The record exceeds the maximum size of a sort buffer (current maximum: 72351744 bytes)

["Nikola (Jira)" <ji...@apache.org>]

Nikola created FLINK-17192:
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             Summary: java.lang.RuntimeException: Error obtaining the sorted input: Thread 'SortMerger Reading Thread' terminated due to an exception: The record exceeds the maximum size of a sort buffer (current maximum: 72351744 bytes)
                 Key: FLINK-17192
                 URL: https://issues.apache.org/jira/browse/FLINK-17192
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Task
    Affects Versions: 1.8.2
         Environment: flink 1.8.2
            Reporter: Nikola


We are trying to sort our data and we get to the following exception:



{code:java}
java.lang.RuntimeException: Error obtaining the sorted input: Thread 'SortMerger Reading Thread' terminated due to an exception: The record exceeds the maximum size of a sort buffer (current maximum: 72351744 bytes). 
at org.apache.flink.runtime.operators.sort.UnilateralSortMerger.getIterator(UnilateralSortMerger.java:650) 
at org.apache.flink.runtime.operators.BatchTask.getInput(BatchTask.java:1108) 
at org.apache.flink.runtime.operators.NoOpDriver.run(NoOpDriver.java:82) 
at org.apache.flink.runtime.operators.BatchTask.run(BatchTask.java:503) 
at org.apache.flink.runtime.operators.BatchTask.invoke(BatchTask.java:368) 
at org.apache.flink.runtime.taskmanager.Task.run(Task.java:711) 
at java.lang.Thread.run(Thread.java:748)

Caused by: java.io.IOException: Thread 'SortMerger Reading Thread' terminated due to an exception: The record exceeds the maximum size of a sort buffer (current maximum: 72351744 bytes). 
at org.apache.flink.runtime.operators.sort.UnilateralSortMerger$ThreadBase.run(UnilateralSortMerger.java:831)
Caused by: java.io.IOException: The record exceeds the maximum size of a sort buffer (current maximum: 72351744 bytes). 
at org.apache.flink.runtime.operators.sort.UnilateralSortMerger$ReadingThread.go(UnilateralSortMerger.java:986) 
at org.apache.flink.runtime.operators.sort.UnilateralSortMerger$ThreadBase.run(UnilateralSortMerger.java:827){code}
 

The sort buffer says to be "72351744 bytes" which is about 70MB. Our TM has 30GB memory set for flink. 

I tried to find the same issue, but nothing really gave me an answer. I tried finding the same issue on JIRA, but I couldn't.

[http://apache-flink-user-mailing-list-archive.2336050.n4.nabble.com/Any-way-to-increase-sort-buffer-size-td10152.html] This one is from 2016 so I am not sure if I can trust it anymore since Flink has evolved since

 

Is it possible to increase this sort buffer? 

 



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