public static void main(String[] args) throws Exception { Configuration conf = HBaseConfig.Instance().getConfiguration(); // parse user input Options opt = new Options(); opt.addOption( OptionBuilder.withArgName("property=value") .hasArg() .withDescription("Override HBase Configuration Settings") .create("D")); CommandLine cmd = new GnuParser().parse(opt, args); if (cmd.hasOption("D")) { for (String confOpt : cmd.getOptionValues("D")) { String[] kv = confOpt.split("=", 2); if (kv.length == 2) { conf.set(kv[0], kv[1]); LOG.debug("-D configuration override: " + kv[0] + "=" + kv[1]); } else { throw new ParseException("-D option format invalid: " + confOpt); } } } if (1 != cmd.getArgList().size() || cmd.hasOption("h")) { new HelpFormatter().printHelp("TableRegionScanner [ options ] <TABLE>", opt); return; } String tableName = cmd.getArgs()[0]; HTable table = new HTable(conf, tableName); HBaseAdmin admin = new HBaseAdmin(conf); Map<String, HRegionContent> regionMap = getRegionMap(table, admin); int count = 0; int fileSize = 0; for (HRegionContent rc : regionMap.values()) { count++; fileSize += rc.getTotalSizeMB(); } System.out.println("region map size: " + regionMap.size()); System.out.println("file size :" + fileSize); }