コード例 #1
0
  protected void deleteRegion(Configuration conf, final Table tbl, byte[] startKey, byte[] endKey)
      throws IOException {

    LOG.info("Before delete:");
    HTableDescriptor htd = tbl.getTableDescriptor();
    dumpMeta(htd);

    List<HRegionLocation> regions;
    try (RegionLocator rl = connection.getRegionLocator(tbl.getName())) {
      regions = rl.getAllRegionLocations();
    }

    for (HRegionLocation e : regions) {
      HRegionInfo hri = e.getRegionInfo();
      ServerName hsa = e.getServerName();
      if (Bytes.compareTo(hri.getStartKey(), startKey) == 0
          && Bytes.compareTo(hri.getEndKey(), endKey) == 0) {

        LOG.info("RegionName: " + hri.getRegionNameAsString());
        byte[] deleteRow = hri.getRegionName();
        TEST_UTIL.getHBaseAdmin().unassign(deleteRow, true);

        LOG.info("deleting hdfs data: " + hri.toString() + hsa.toString());
        Path rootDir = FSUtils.getRootDir(conf);
        FileSystem fs = rootDir.getFileSystem(conf);
        Path p = new Path(FSUtils.getTableDir(rootDir, htd.getTableName()), hri.getEncodedName());
        fs.delete(p, true);

        try (Table meta = this.connection.getTable(TableName.META_TABLE_NAME)) {
          Delete delete = new Delete(deleteRow);
          meta.delete(delete);
        }
      }
      LOG.info(hri.toString() + hsa.toString());
    }

    TEST_UTIL.getMetaTableRows(htd.getTableName());
    LOG.info("After delete:");
    dumpMeta(htd);
  }
コード例 #2
0
 private void dumpMeta(HTableDescriptor htd) throws IOException {
   List<byte[]> metaRows = TEST_UTIL.getMetaTableRows(htd.getTableName());
   for (byte[] row : metaRows) {
     LOG.info(Bytes.toString(row));
   }
 }