private void closeRegionIgnoreErrors(RegionInfo region, final boolean abort) {
    try {
      if (!closeRegion(region.getEncodedName(), abort, null)) {
        LOG
          .warn("Failed to close " + region.getRegionNameAsString() + " - ignoring and continuing");
      }
    } catch (IOException e) {
      LOG.warn("Failed to close " + region.getRegionNameAsString() + " - ignoring and continuing",
        e);
    }
  }
Try to close the region, logs a warning on failure but continues.
@param region Region to close
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/HRegionServer.java