List of hsync() Examples

Examples of hsync()

org.apache.hadoop.fs.FSDataOutputStream.hsync()
org.apache.hadoop.hdfs.client.HdfsDataOutputStream.hsync()
Sync buffered data to DataNodes (flush to disk devices). @param syncFlags Indicate the detailed semantic and actions of the hsync. @throws IOException @see FSDataOutputStream#hsync()
org.apache.hadoop.io.SequenceFile.Writer.hsync()

Examples of org.apache.hadoop.hdfs.client.HdfsDataOutputStream.hsync()

    final Path fileInSnapshot2 = SnapshotTestHelper.getSnapshotPath(root,
        "s2", file.getName());
    
    // append data to file without closing
    HdfsDataOutputStream out = appendFileWithoutClosing(file, BLOCKSIZE);
    out.hsync(EnumSet.of(SyncFlag.UPDATE_LENGTH));
    
    status = hdfs.getFileStatus(fileInSnapshot2);
    // the size of snapshot file should be BLOCKSIZE*2-1
    assertEquals(BLOCKSIZE * 2 - 1, status.getLen());
    // the size of the file should be (3 * BLOCKSIZE - 1)

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Examples of org.apache.hadoop.io.SequenceFile.Writer.hsync()

        Writer.keyClass(RandomDatum.class),
        Writer.valueClass(RandomDatum.class),
        Writer.compression(CompressionType.NONE, new DefaultCodec()));
    w.hflush();
    checkSyncMetric(cluster, 0);
    w.hsync();
    checkSyncMetric(cluster, 1);
    int seed = new Random().nextInt();
    RandomDatum.Generator generator = new RandomDatum.Generator(seed);
    generator.next();
    w.append(generator.getKey(), generator.getValue());

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