void isInterrupted(final Store store, final StoreFile.Writer writer) throws IOException {
   if (store.getHRegion().areWritesEnabled()) return;
   // Else cleanup.
   writer.close();
   store.getFileSystem().delete(writer.getPath(), false);
   throw new InterruptedIOException(
       "Aborting compaction of store "
           + store
           + " in region "
           + store.getHRegion()
           + " because user requested stop.");
 }
  public void runMergeWorkload() throws IOException {
    long maxKeyCount = prepareForMerge();

    List<StoreFileScanner> scanners =
        StoreFileScanner.getScannersForStoreFiles(inputStoreFiles, false, false);

    HColumnDescriptor columnDescriptor =
        new HColumnDescriptor(HFileReadWriteTest.class.getSimpleName());
    columnDescriptor.setBlocksize(blockSize);
    columnDescriptor.setBloomFilterType(bloomType);
    columnDescriptor.setCompressionType(compression);
    columnDescriptor.setDataBlockEncoding(dataBlockEncoding);
    HRegionInfo regionInfo = new HRegionInfo();
    HTableDescriptor htd = new HTableDescriptor(TABLE_NAME);
    HRegion region = new HRegion(outputDir, null, fs, conf, regionInfo, htd, null);
    HStore store = new HStore(outputDir, region, columnDescriptor, fs, conf);

    StoreFile.Writer writer =
        new StoreFile.WriterBuilder(conf, new CacheConfig(conf), fs, blockSize)
            .withOutputDir(outputDir)
            .withCompression(compression)
            .withDataBlockEncoder(dataBlockEncoder)
            .withBloomType(bloomType)
            .withMaxKeyCount(maxKeyCount)
            .withChecksumType(HFile.DEFAULT_CHECKSUM_TYPE)
            .withBytesPerChecksum(HFile.DEFAULT_BYTES_PER_CHECKSUM)
            .build();

    StatisticsPrinter statsPrinter = new StatisticsPrinter();
    statsPrinter.startThread();

    try {
      performMerge(scanners, store, writer);
      writer.close();
    } finally {
      statsPrinter.requestStop();
    }

    Path resultPath = writer.getPath();

    resultPath = tryUsingSimpleOutputPath(resultPath);

    long fileSize = fs.getFileStatus(resultPath).getLen();
    LOG.info("Created " + resultPath + ", size " + fileSize);

    System.out.println();
    System.out.println("HFile information for " + resultPath);
    System.out.println();

    HFilePrettyPrinter hfpp = new HFilePrettyPrinter();
    hfpp.run(new String[] {"-m", "-f", resultPath.toString()});
  }