wsry commented on a change in pull request #15652: URL: https://github.com/apache/flink/pull/15652#discussion_r615329427
########## File path: flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/SortMergeResultPartition.java ########## @@ -160,18 +160,12 @@ public void setup() throws IOException { } int numRequiredBuffer = bufferPool.getNumberOfRequiredMemorySegments(); - String errorMessage = - String.format( - "Too few sort buffers, please increase %s to a larger value (more than %d).", - NettyShuffleEnvironmentOptions.NETWORK_SORT_SHUFFLE_MIN_BUFFERS, - 2 * expectedWriteBuffers); - if (numRequiredBuffer < 2 * expectedWriteBuffers) { - LOG.warn(errorMessage); - } - int numWriteBuffers = Math.min(numRequiredBuffer / 2, expectedWriteBuffers); if (numWriteBuffers < 1) { - throw new IOException(errorMessage); + throw new IOException( + String.format( + "Too few sort buffers, please increase %s.", + NettyShuffleEnvironmentOptions.NETWORK_SORT_SHUFFLE_MIN_BUFFERS)); Review comment: The error only occurs when only 1 buffer is configured which is rare and increasing it to any value would be OK. Besides, we already give a suggested value in the config option description which is good enough and should never trigger any warnings or exceptions. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org