Re: Regions Offline

[stack]

David:

Attached is a hacked up tool that you can use to online your regions.
Put it into your hbase install at src/java/org/apache/hadoop/hbase.  
Compile.  Then you should be able to do something like "./bin/hbase 
org.apache.hadoop.hbase.HBaseTool" to see a usage message.  Pass the row 
name and whether you want it 'on' or 'off'.

St.Ack
package org.apache.hadoop.hbase;

import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.util.MetaUtils;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.util.Tool;
import org.apache.hadoop.util.ToolRunner;

public class HBaseTool implements Tool {
  private Configuration conf;

  public int run(String[] args) throws Exception {
    // Make sure there are at least 3 parameters
    if (args.length < 2) {
      System.err.println("ERROR: Wrong number of parameters: " + args.length);
      return printUsage();
    }
    // First argument is the row in .META.
    Text row = new Text(args[0]);
    boolean enable = false;
    if (args[1].toLowerCase().equals("on")) {
      enable = true;
    } else if (args[1].toLowerCase().equals("off")) {
      enable = false;
    } else {
      System.err.println("ERROR: Second argument is not 'on' or 'off: " +
        args.length);
      return printUsage();
    }
    MetaUtils.changeOnlineStatus((HBaseConfiguration)this.conf, row, enable);
    return 0;
  }

  public Configuration getConf() {
    return this.conf;
  }

  public void setConf(Configuration c) {
    this.conf = c;
  }

  static int printUsage() {
    System.out.println("HBaseTool <region_name> <enable | disable>");
    return -1;
  }
  
  /**
   * @param args
   * @throws Exception 
   */
  public static void main(String[] args) throws Exception {
    HBaseConfiguration c = new HBaseConfiguration();
    int errCode = ToolRunner.run(c, new HBaseTool(), args);
    System.exit(errCode);
  }
}