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);
}
