Piotr Nowojski created FLINK-17440:
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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}}.
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