cxzl25 commented on code in PR #24896:
URL: https://github.com/apache/flink/pull/24896#discussion_r1628734257
##########
flink-filesystems/flink-hadoop-fs/src/main/java/org/apache/flink/runtime/fs/hdfs/BaseHadoopFsRecoverableFsDataOutputStream.java:
##########
@@ -59,7 +59,7 @@ public void write(byte[] b, int off, int len) throws
IOException {
@Override
public void flush() throws IOException {
- out.hsync();
+ out.hflush();
Review Comment:
https://github.com/apache/hadoop/blob/2ee0bf953492b66765d3d2c902407fbf9bceddec/hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/DFSOutputStream.java#L586-L608
```java
"write.hdfs: Writer -> write.hdfs: Committer (23/80)#0" Id=112 TIMED_WAITING
on java.util.LinkedList@544a8b34
at java.lang.Object.wait(Native Method)
- waiting on java.util.LinkedList@544a8b34
at
org.apache.hadoop.hdfs.DFSOutputStream.waitForAckedSeqno(DFSOutputStream.java:2534)
at
org.apache.hadoop.hdfs.DFSOutputStream.flushOrSync(DFSOutputStream.java:2421)
at
org.apache.hadoop.hdfs.DFSOutputStream.hsync(DFSOutputStream.java:2324)
at
org.apache.hadoop.fs.FSDataOutputStream.hsync(FSDataOutputStream.java:139)
at
org.apache.flink.runtime.fs.hdfs.BaseHadoopFsRecoverableFsDataOutputStream.flush(BaseHadoopFsRecoverableFsDataOutputStream.java:63)
at
org.apache.flink.util.CloseShieldOutputStream.flush(CloseShieldOutputStream.java:49)
at java.io.FilterOutputStream.flush(FilterOutputStream.java:140)
at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:141)
- locked
org.apache.avro.file.DataFileWriter$BufferedFileOutputStream@4d7428c3
at
org.apache.avro.file.DataFileWriter$BufferedFileOutputStream.flush(DataFileWriter.java:493)
- locked
org.apache.avro.file.DataFileWriter$BufferedFileOutputStream@4d7428c3
at
org.apache.avro.io.DirectBinaryEncoder.flush(DirectBinaryEncoder.java:63)
at
org.apache.avro.file.DataFileStream$DataBlock.writeBlockTo(DataFileStream.java:409)
at
org.apache.avro.file.DataFileWriter.writeBlock(DataFileWriter.java:408)
at
org.apache.avro.file.DataFileWriter.writeIfBlockFull(DataFileWriter.java:351)
at org.apache.avro.file.DataFileWriter.append(DataFileWriter.java:320)
at
org.apache.flink.formats.avro.AvroBulkWriter.addElement(AvroBulkWriter.java:44)
at
org.apache.flink.streaming.api.functions.sink.filesystem.BulkPartWriter.write(BulkPartWriter.java:51)
at
org.apache.flink.connector.file.sink.writer.FileWriterBucket.write(FileWriterBucket.java:191)
at
org.apache.flink.connector.file.sink.writer.FileWriter.write(FileWriter.java:198)
at
org.apache.flink.streaming.runtime.operators.sink.SinkWriterOperator.processElement(SinkWriterOperator.java:158)
at
org.apache.flink.streaming.runtime.io.RecordProcessorUtils$$Lambda$782/964030759.accept(Unknown
Source)
at
org.apache.flink.streaming.runtime.tasks.OneInputStreamTask$StreamTaskNetworkOutput.emitRecord(OneInputStreamTask.java:237)
```
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