[jira] [Created] (FLINK-17440) Potential Buffer leak in output unspilling for unaligned checkpoints

[Shang Yuanchun (Jira)]

Piotr Nowojski created FLINK-17440:
--------------------------------------

             Summary: Potential Buffer leak in output unspilling for unaligned checkpoints
                 Key: FLINK-17440
                 URL: https://issues.apache.org/jira/browse/FLINK-17440
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Network
            Reporter: Piotr Nowojski
             Fix For: 1.11.0


{code}
@Override
public void PipelinedSubpartition#initializeState(ChannelStateReader stateReader) throws IOException, InterruptedException {
        for (ReadResult readResult = ReadResult.HAS_MORE_DATA; readResult == ReadResult.HAS_MORE_DATA;) {
                BufferBuilder bufferBuilder = parent.getBufferPool().requestBufferBuilderBlocking();
                BufferConsumer bufferConsumer = bufferBuilder.createBufferConsumer();
                readResult = stateReader.readOutputData(subpartitionInfo, bufferBuilder); // <<<<<<<<<<<<<<<<<<<<<<<
                // check whether there are some states data filled in this time
                if (bufferConsumer.isDataAvailable()) {
                        add(bufferConsumer, false, false);
                        bufferBuilder.finish();
                } else {
                        bufferConsumer.close();
                }
        }
}
{code}

There is a memory leak in output unspilling in case of an exception coming from the {{stateReader}}.



--
This message was sent by Atlassian Jira
(v8.3.4#803005)