http://git-wip-us.apache.org/repos/asf/hbase-site/blob/e11cf2cb/devapidocs/src-html/org/apache/hadoop/hbase/backup/impl/BackupCommands.BackupSetCommand.html
----------------------------------------------------------------------
diff --git 
a/devapidocs/src-html/org/apache/hadoop/hbase/backup/impl/BackupCommands.BackupSetCommand.html
 
b/devapidocs/src-html/org/apache/hadoop/hbase/backup/impl/BackupCommands.BackupSetCommand.html
index f236300..513d2ad 100644
--- 
a/devapidocs/src-html/org/apache/hadoop/hbase/backup/impl/BackupCommands.BackupSetCommand.html
+++ 
b/devapidocs/src-html/org/apache/hadoop/hbase/backup/impl/BackupCommands.BackupSetCommand.html
@@ -26,1048 +26,1115 @@
 <span class="sourceLineNo">018</span><a name="line.18"></a>
 <span class="sourceLineNo">019</span>package 
org.apache.hadoop.hbase.backup.impl;<a name="line.19"></a>
 <span class="sourceLineNo">020</span><a name="line.20"></a>
-<span class="sourceLineNo">021</span>import static 
org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_BANDWIDTH;<a 
name="line.21"></a>
-<span class="sourceLineNo">022</span>import static 
org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_BANDWIDTH_DESC;<a 
name="line.22"></a>
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_DEBUG;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_DEBUG_DESC;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_PATH;<a 
name="line.25"></a>
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_PATH_DESC;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_RECORD_NUMBER;<a 
name="line.27"></a>
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_RECORD_NUMBER_DESC;<a
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_SET;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_SET_BACKUP_DESC;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_SET_DESC;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_TABLE;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_TABLE_DESC;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_TABLE_LIST_DESC;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_WORKERS;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_WORKERS_DESC;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_YARN_QUEUE_NAME;<a 
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-<span class="sourceLineNo">038</span>import static 
org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_YARN_QUEUE_NAME_DESC;<a
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-<span class="sourceLineNo">040</span>import java.io.IOException;<a 
name="line.40"></a>
-<span class="sourceLineNo">041</span>import java.net.URI;<a name="line.41"></a>
-<span class="sourceLineNo">042</span>import java.util.List;<a 
name="line.42"></a>
+<span class="sourceLineNo">021</span>import static 
org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_BACKUP_LIST_DESC;<a
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+<span class="sourceLineNo">022</span>import static 
org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_BANDWIDTH;<a 
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+<span class="sourceLineNo">023</span>import static 
org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_BANDWIDTH_DESC;<a 
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+<span class="sourceLineNo">024</span>import static 
org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_DEBUG;<a 
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+<span class="sourceLineNo">025</span>import static 
org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_DEBUG_DESC;<a 
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+<span class="sourceLineNo">026</span>import static 
org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_KEEP;<a 
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+<span class="sourceLineNo">027</span>import static 
org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_KEEP_DESC;<a 
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+<span class="sourceLineNo">028</span>import static 
org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_LIST;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_PATH;<a 
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+<span class="sourceLineNo">030</span>import static 
org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_PATH_DESC;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_RECORD_NUMBER;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_RECORD_NUMBER_DESC;<a
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_SET;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_SET_BACKUP_DESC;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_SET_DESC;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_TABLE;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_TABLE_DESC;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_TABLE_LIST_DESC;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_WORKERS;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_WORKERS_DESC;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_YARN_QUEUE_NAME;<a 
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org.apache.hadoop.hbase.backup.BackupRestoreConstants.OPTION_YARN_QUEUE_NAME_DESC;<a
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 <span class="sourceLineNo">043</span><a name="line.43"></a>
-<span class="sourceLineNo">044</span>import 
org.apache.commons.lang3.StringUtils;<a name="line.44"></a>
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org.apache.hadoop.conf.Configuration;<a name="line.45"></a>
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org.apache.hadoop.conf.Configured;<a name="line.46"></a>
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org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import 
org.apache.hadoop.hbase.TableName;<a name="line.50"></a>
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org.apache.hadoop.hbase.backup.BackupAdmin;<a name="line.51"></a>
-<span class="sourceLineNo">052</span>import 
org.apache.hadoop.hbase.backup.BackupInfo;<a name="line.52"></a>
-<span class="sourceLineNo">053</span>import 
org.apache.hadoop.hbase.backup.BackupInfo.BackupState;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>import 
org.apache.hadoop.hbase.backup.BackupRequest;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import 
org.apache.hadoop.hbase.backup.BackupRestoreConstants;<a name="line.55"></a>
-<span class="sourceLineNo">056</span>import 
org.apache.hadoop.hbase.backup.BackupRestoreConstants.BackupCommand;<a 
name="line.56"></a>
-<span class="sourceLineNo">057</span>import 
org.apache.hadoop.hbase.backup.BackupType;<a name="line.57"></a>
-<span class="sourceLineNo">058</span>import 
org.apache.hadoop.hbase.backup.HBackupFileSystem;<a name="line.58"></a>
-<span class="sourceLineNo">059</span>import 
org.apache.hadoop.hbase.backup.util.BackupSet;<a name="line.59"></a>
-<span class="sourceLineNo">060</span>import 
org.apache.hadoop.hbase.backup.util.BackupUtils;<a name="line.60"></a>
-<span class="sourceLineNo">061</span>import 
org.apache.hadoop.hbase.client.Connection;<a name="line.61"></a>
-<span class="sourceLineNo">062</span>import 
org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.62"></a>
-<span class="sourceLineNo">063</span>import 
org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.63"></a>
-<span class="sourceLineNo">064</span>import 
org.apache.yetus.audience.InterfaceAudience;<a name="line.64"></a>
-<span class="sourceLineNo">065</span>import 
org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a 
name="line.65"></a>
-<span class="sourceLineNo">066</span>import 
org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine;<a 
name="line.66"></a>
-<span class="sourceLineNo">067</span>import 
org.apache.hbase.thirdparty.org.apache.commons.cli.HelpFormatter;<a 
name="line.67"></a>
-<span class="sourceLineNo">068</span>import 
org.apache.hbase.thirdparty.org.apache.commons.cli.Options;<a 
name="line.68"></a>
-<span class="sourceLineNo">069</span><a name="line.69"></a>
-<span class="sourceLineNo">070</span>/**<a name="line.70"></a>
-<span class="sourceLineNo">071</span> * General backup commands, options and 
usage messages<a name="line.71"></a>
-<span class="sourceLineNo">072</span> */<a name="line.72"></a>
-<span class="sourceLineNo">073</span>@InterfaceAudience.Private<a 
name="line.73"></a>
-<span class="sourceLineNo">074</span>public final class BackupCommands {<a 
name="line.74"></a>
-<span class="sourceLineNo">075</span>  public final static String 
INCORRECT_USAGE = "Incorrect usage";<a name="line.75"></a>
-<span class="sourceLineNo">076</span><a name="line.76"></a>
-<span class="sourceLineNo">077</span>  public final static String 
TOP_LEVEL_NOT_ALLOWED =<a name="line.77"></a>
-<span class="sourceLineNo">078</span>      "Top level (root) folder is not 
allowed to be a backup destination";<a name="line.78"></a>
-<span class="sourceLineNo">079</span><a name="line.79"></a>
-<span class="sourceLineNo">080</span>  public static final String USAGE = 
"Usage: hbase backup COMMAND [command-specific arguments]\n"<a 
name="line.80"></a>
-<span class="sourceLineNo">081</span>      + "where COMMAND is one of:\n" + "  
create     create a new backup image\n"<a name="line.81"></a>
-<span class="sourceLineNo">082</span>      + "  delete     delete an existing 
backup image\n"<a name="line.82"></a>
-<span class="sourceLineNo">083</span>      + "  describe   show the detailed 
information of a backup image\n"<a name="line.83"></a>
-<span class="sourceLineNo">084</span>      + "  history    show history of all 
successful backups\n"<a name="line.84"></a>
-<span class="sourceLineNo">085</span>      + "  progress   show the progress 
of the latest backup request\n"<a name="line.85"></a>
-<span class="sourceLineNo">086</span>      + "  set        backup set 
management\n"<a name="line.86"></a>
-<span class="sourceLineNo">087</span>      + "  repair     repair backup 
system table\n"<a name="line.87"></a>
-<span class="sourceLineNo">088</span>      + "  merge      merge backup 
images\n"<a name="line.88"></a>
-<span class="sourceLineNo">089</span>      + "Run \'hbase backup COMMAND -h\' 
to see help message for each command\n";<a name="line.89"></a>
-<span class="sourceLineNo">090</span><a name="line.90"></a>
-<span class="sourceLineNo">091</span>  public static final String 
CREATE_CMD_USAGE =<a name="line.91"></a>
-<span class="sourceLineNo">092</span>      "Usage: hbase backup create 
&lt;type&gt; &lt;backup_path&gt; [options]\n"<a name="line.92"></a>
-<span class="sourceLineNo">093</span>          + "  type           \"full\" to 
create a full backup image\n"<a name="line.93"></a>
-<span class="sourceLineNo">094</span>          + "                 
\"incremental\" to create an incremental backup image\n"<a name="line.94"></a>
-<span class="sourceLineNo">095</span>          + "  backup_path     Full path 
to store the backup image\n";<a name="line.95"></a>
-<span class="sourceLineNo">096</span><a name="line.96"></a>
-<span class="sourceLineNo">097</span>  public static final String 
PROGRESS_CMD_USAGE = "Usage: hbase backup progress &lt;backup_id&gt;\n"<a 
name="line.97"></a>
-<span class="sourceLineNo">098</span>      + "  backup_id       Backup image 
id (optional). If no id specified, the command will show\n"<a 
name="line.98"></a>
-<span class="sourceLineNo">099</span>      + "                  progress for 
currently running backup session.";<a name="line.99"></a>
-<span class="sourceLineNo">100</span>  public static final String 
NO_INFO_FOUND = "No info was found for backup id: ";<a name="line.100"></a>
-<span class="sourceLineNo">101</span>  public static final String 
NO_ACTIVE_SESSION_FOUND = "No active backup sessions found.";<a 
name="line.101"></a>
-<span class="sourceLineNo">102</span><a name="line.102"></a>
-<span class="sourceLineNo">103</span>  public static final String 
DESCRIBE_CMD_USAGE = "Usage: hbase backup describe &lt;backup_id&gt;\n"<a 
name="line.103"></a>
-<span class="sourceLineNo">104</span>      + "  backup_id       Backup image 
id\n";<a name="line.104"></a>
-<span class="sourceLineNo">105</span><a name="line.105"></a>
-<span class="sourceLineNo">106</span>  public static final String 
HISTORY_CMD_USAGE = "Usage: hbase backup history [options]";<a 
name="line.106"></a>
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-<span class="sourceLineNo">108</span>  public static final String 
DELETE_CMD_USAGE = "Usage: hbase backup delete &lt;backup_id&gt;\n"<a 
name="line.108"></a>
-<span class="sourceLineNo">109</span>      + "  backup_id       Backup image 
id\n";<a name="line.109"></a>
-<span class="sourceLineNo">110</span><a name="line.110"></a>
-<span class="sourceLineNo">111</span>  public static final String 
REPAIR_CMD_USAGE = "Usage: hbase backup repair\n";<a name="line.111"></a>
-<span class="sourceLineNo">112</span><a name="line.112"></a>
-<span class="sourceLineNo">113</span>  public static final String 
SET_CMD_USAGE = "Usage: hbase backup set COMMAND [name] [tables]\n"<a 
name="line.113"></a>
-<span class="sourceLineNo">114</span>      + "  name            Backup set 
name\n"<a name="line.114"></a>
-<span class="sourceLineNo">115</span>      + "  tables          Comma 
separated list of tables.\n" + "COMMAND is one of:\n"<a name="line.115"></a>
-<span class="sourceLineNo">116</span>      + "  add             add tables to 
a set, create a set if needed\n"<a name="line.116"></a>
-<span class="sourceLineNo">117</span>      + "  remove          remove tables 
from a set\n"<a name="line.117"></a>
-<span class="sourceLineNo">118</span>      + "  list            list all 
backup sets in the system\n"<a name="line.118"></a>
-<span class="sourceLineNo">119</span>      + "  describe        describe 
set\n" + "  delete          delete backup set\n";<a name="line.119"></a>
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MERGE_CMD_USAGE = "Usage: hbase backup merge [backup_ids]\n"<a 
name="line.120"></a>
-<span class="sourceLineNo">121</span>      + "  backup_ids      Comma 
separated list of backup image ids.\n";<a name="line.121"></a>
-<span class="sourceLineNo">122</span><a name="line.122"></a>
-<span class="sourceLineNo">123</span>  public static final String USAGE_FOOTER 
= "";<a name="line.123"></a>
-<span class="sourceLineNo">124</span><a name="line.124"></a>
-<span class="sourceLineNo">125</span>  public static abstract class Command 
extends Configured {<a name="line.125"></a>
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name="line.126"></a>
-<span class="sourceLineNo">127</span>    Connection conn;<a 
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-<span class="sourceLineNo">129</span>    Command(Configuration conf) {<a 
name="line.129"></a>
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name="line.130"></a>
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HBaseConfiguration.create();<a name="line.131"></a>
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name="line.133"></a>
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-<span class="sourceLineNo">136</span>    public void execute() throws 
IOException {<a name="line.136"></a>
-<span class="sourceLineNo">137</span>      if (cmdline.hasOption("h") || 
cmdline.hasOption("help")) {<a name="line.137"></a>
-<span class="sourceLineNo">138</span>        printUsage();<a 
name="line.138"></a>
-<span class="sourceLineNo">139</span>        throw new 
IOException(INCORRECT_USAGE);<a name="line.139"></a>
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-<span class="sourceLineNo">142</span>      // Create connection<a 
name="line.142"></a>
-<span class="sourceLineNo">143</span>      conn = 
ConnectionFactory.createConnection(getConf());<a name="line.143"></a>
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name="line.144"></a>
-<span class="sourceLineNo">145</span>        // Check active session<a 
name="line.145"></a>
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new BackupSystemTable(conn)) {<a name="line.146"></a>
-<span class="sourceLineNo">147</span>          List&lt;BackupInfo&gt; sessions 
= table.getBackupInfos(BackupState.RUNNING);<a name="line.147"></a>
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-<span class="sourceLineNo">149</span>          if (sessions.size() &gt; 0) {<a 
name="line.149"></a>
-<span class="sourceLineNo">150</span>            System.err.println("Found 
backup session in a RUNNING state: ");<a name="line.150"></a>
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System.err.println(sessions.get(0));<a name="line.151"></a>
-<span class="sourceLineNo">152</span>            System.err.println("This may 
indicate that a previous session has failed abnormally.");<a 
name="line.152"></a>
-<span class="sourceLineNo">153</span>            System.err.println("In this 
case, backup recovery is recommended.");<a name="line.153"></a>
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session found, aborted command execution");<a name="line.154"></a>
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name="line.158"></a>
-<span class="sourceLineNo">159</span>        // Check failed delete<a 
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new BackupSystemTable(conn)) {<a name="line.160"></a>
-<span class="sourceLineNo">161</span>          String[] ids = 
table.getListOfBackupIdsFromDeleteOperation();<a name="line.161"></a>
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-<span class="sourceLineNo">163</span>          if (ids != null &amp;&amp; 
ids.length &gt; 0) {<a name="line.163"></a>
-<span class="sourceLineNo">164</span>            System.err.println("Found 
failed backup DELETE coommand. ");<a name="line.164"></a>
-<span class="sourceLineNo">165</span>            System.err.println("Backup 
system recovery is required.");<a name="line.165"></a>
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backup DELETE found, aborted command execution");<a name="line.166"></a>
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-<span class="sourceLineNo">169</span>          ids = 
table.getListOfBackupIdsFromMergeOperation();<a name="line.169"></a>
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ids.length &gt; 0) {<a name="line.170"></a>
-<span class="sourceLineNo">171</span>            System.err.println("Found 
failed backup MERGE coommand. ");<a name="line.171"></a>
-<span class="sourceLineNo">172</span>            System.err.println("Backup 
system recovery is required.");<a name="line.172"></a>
-<span class="sourceLineNo">173</span>            throw new IOException("Failed 
backup MERGE found, aborted command execution");<a name="line.173"></a>
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-<span class="sourceLineNo">179</span>    public void finish() throws 
IOException {<a name="line.179"></a>
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name="line.180"></a>
-<span class="sourceLineNo">181</span>        conn.close();<a 
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-<span class="sourceLineNo">187</span>    /**<a name="line.187"></a>
-<span class="sourceLineNo">188</span>     * The command can't be run if active 
backup session is in progress<a name="line.188"></a>
-<span class="sourceLineNo">189</span>     * @return true if no active sessions 
are in progress<a name="line.189"></a>
-<span class="sourceLineNo">190</span>     */<a name="line.190"></a>
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requiresNoActiveSession() {<a name="line.191"></a>
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-<span class="sourceLineNo">195</span>    /**<a name="line.195"></a>
-<span class="sourceLineNo">196</span>     * Command requires consistent state 
of a backup system Backup system may become inconsistent<a name="line.196"></a>
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of a backup session or delete command<a name="line.197"></a>
-<span class="sourceLineNo">198</span>     * @return true, if yes<a 
name="line.198"></a>
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requiresConsistentState() {<a name="line.200"></a>
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AssertionError("Instantiating utility class...");<a name="line.206"></a>
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createCommand(Configuration conf, BackupCommand type, CommandLine cmdline) {<a 
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cmdline);<a name="line.213"></a>
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name="line.215"></a>
-<span class="sourceLineNo">216</span>        cmd = new DescribeCommand(conf, 
cmdline);<a name="line.216"></a>
+<span class="sourceLineNo">044</span>import java.io.IOException;<a 
name="line.44"></a>
+<span class="sourceLineNo">045</span>import java.net.URI;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import java.util.List;<a 
name="line.46"></a>
+<span class="sourceLineNo">047</span><a name="line.47"></a>
+<span class="sourceLineNo">048</span>import 
org.apache.commons.lang3.StringUtils;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import 
org.apache.hadoop.conf.Configuration;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import 
org.apache.hadoop.conf.Configured;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.fs.FileSystem;<a 
name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hadoop.fs.Path;<a 
name="line.52"></a>
+<span class="sourceLineNo">053</span>import 
org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.53"></a>
+<span class="sourceLineNo">054</span>import 
org.apache.hadoop.hbase.TableName;<a name="line.54"></a>
+<span class="sourceLineNo">055</span>import 
org.apache.hadoop.hbase.backup.BackupAdmin;<a name="line.55"></a>
+<span class="sourceLineNo">056</span>import 
org.apache.hadoop.hbase.backup.BackupInfo;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import 
org.apache.hadoop.hbase.backup.BackupInfo.BackupState;<a name="line.57"></a>
+<span class="sourceLineNo">058</span>import 
org.apache.hadoop.hbase.backup.BackupRequest;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import 
org.apache.hadoop.hbase.backup.BackupRestoreConstants;<a name="line.59"></a>
+<span class="sourceLineNo">060</span>import 
org.apache.hadoop.hbase.backup.BackupRestoreConstants.BackupCommand;<a 
name="line.60"></a>
+<span class="sourceLineNo">061</span>import 
org.apache.hadoop.hbase.backup.BackupType;<a name="line.61"></a>
+<span class="sourceLineNo">062</span>import 
org.apache.hadoop.hbase.backup.HBackupFileSystem;<a name="line.62"></a>
+<span class="sourceLineNo">063</span>import 
org.apache.hadoop.hbase.backup.util.BackupSet;<a name="line.63"></a>
+<span class="sourceLineNo">064</span>import 
org.apache.hadoop.hbase.backup.util.BackupUtils;<a name="line.64"></a>
+<span class="sourceLineNo">065</span>import 
org.apache.hadoop.hbase.client.Connection;<a name="line.65"></a>
+<span class="sourceLineNo">066</span>import 
org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.66"></a>
+<span class="sourceLineNo">067</span>import 
org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.67"></a>
+<span class="sourceLineNo">068</span>import 
org.apache.hbase.thirdparty.com.google.common.collect.Lists;<a 
name="line.68"></a>
+<span class="sourceLineNo">069</span>import 
org.apache.hbase.thirdparty.org.apache.commons.cli.CommandLine;<a 
name="line.69"></a>
+<span class="sourceLineNo">070</span>import 
org.apache.hbase.thirdparty.org.apache.commons.cli.HelpFormatter;<a 
name="line.70"></a>
+<span class="sourceLineNo">071</span>import 
org.apache.hbase.thirdparty.org.apache.commons.cli.Options;<a 
name="line.71"></a>
+<span class="sourceLineNo">072</span>import 
org.apache.yetus.audience.InterfaceAudience;<a name="line.72"></a>
+<span class="sourceLineNo">073</span><a name="line.73"></a>
+<span class="sourceLineNo">074</span>/**<a name="line.74"></a>
+<span class="sourceLineNo">075</span> * General backup commands, options and 
usage messages<a name="line.75"></a>
+<span class="sourceLineNo">076</span> */<a name="line.76"></a>
+<span class="sourceLineNo">077</span>@InterfaceAudience.Private<a 
name="line.77"></a>
+<span class="sourceLineNo">078</span>public final class BackupCommands {<a 
name="line.78"></a>
+<span class="sourceLineNo">079</span>  public final static String 
INCORRECT_USAGE = "Incorrect usage";<a name="line.79"></a>
+<span class="sourceLineNo">080</span><a name="line.80"></a>
+<span class="sourceLineNo">081</span>  public final static String 
TOP_LEVEL_NOT_ALLOWED =<a name="line.81"></a>
+<span class="sourceLineNo">082</span>      "Top level (root) folder is not 
allowed to be a backup destination";<a name="line.82"></a>
+<span class="sourceLineNo">083</span><a name="line.83"></a>
+<span class="sourceLineNo">084</span>  public static final String USAGE = 
"Usage: hbase backup COMMAND [command-specific arguments]\n"<a 
name="line.84"></a>
+<span class="sourceLineNo">085</span>      + "where COMMAND is one of:\n" + "  
create     create a new backup image\n"<a name="line.85"></a>
+<span class="sourceLineNo">086</span>      + "  delete     delete an existing 
backup image\n"<a name="line.86"></a>
+<span class="sourceLineNo">087</span>      + "  describe   show the detailed 
information of a backup image\n"<a name="line.87"></a>
+<span class="sourceLineNo">088</span>      + "  history    show history of all 
successful backups\n"<a name="line.88"></a>
+<span class="sourceLineNo">089</span>      + "  progress   show the progress 
of the latest backup request\n"<a name="line.89"></a>
+<span class="sourceLineNo">090</span>      + "  set        backup set 
management\n"<a name="line.90"></a>
+<span class="sourceLineNo">091</span>      + "  repair     repair backup 
system table\n"<a name="line.91"></a>
+<span class="sourceLineNo">092</span>      + "  merge      merge backup 
images\n"<a name="line.92"></a>
+<span class="sourceLineNo">093</span>      + "Run \'hbase backup COMMAND -h\' 
to see help message for each command\n";<a name="line.93"></a>
+<span class="sourceLineNo">094</span><a name="line.94"></a>
+<span class="sourceLineNo">095</span>  public static final String 
CREATE_CMD_USAGE =<a name="line.95"></a>
+<span class="sourceLineNo">096</span>      "Usage: hbase backup create 
&lt;type&gt; &lt;backup_path&gt; [options]\n"<a name="line.96"></a>
+<span class="sourceLineNo">097</span>          + "  type           \"full\" to 
create a full backup image\n"<a name="line.97"></a>
+<span class="sourceLineNo">098</span>          + "                 
\"incremental\" to create an incremental backup image\n"<a name="line.98"></a>
+<span class="sourceLineNo">099</span>          + "  backup_path     Full path 
to store the backup image\n";<a name="line.99"></a>
+<span class="sourceLineNo">100</span><a name="line.100"></a>
+<span class="sourceLineNo">101</span>  public static final String 
PROGRESS_CMD_USAGE = "Usage: hbase backup progress &lt;backup_id&gt;\n"<a 
name="line.101"></a>
+<span class="sourceLineNo">102</span>      + "  backup_id       Backup image 
id (optional). If no id specified, the command will show\n"<a 
name="line.102"></a>
+<span class="sourceLineNo">103</span>      + "                  progress for 
currently running backup session.";<a name="line.103"></a>
+<span class="sourceLineNo">104</span>  public static final String 
NO_INFO_FOUND = "No info was found for backup id: ";<a name="line.104"></a>
+<span class="sourceLineNo">105</span>  public static final String 
NO_ACTIVE_SESSION_FOUND = "No active backup sessions found.";<a 
name="line.105"></a>
+<span class="sourceLineNo">106</span><a name="line.106"></a>
+<span class="sourceLineNo">107</span>  public static final String 
DESCRIBE_CMD_USAGE = "Usage: hbase backup describe &lt;backup_id&gt;\n"<a 
name="line.107"></a>
+<span class="sourceLineNo">108</span>      + "  backup_id       Backup image 
id\n";<a name="line.108"></a>
+<span class="sourceLineNo">109</span><a name="line.109"></a>
+<span class="sourceLineNo">110</span>  public static final String 
HISTORY_CMD_USAGE = "Usage: hbase backup history [options]";<a 
name="line.110"></a>
+<span class="sourceLineNo">111</span><a name="line.111"></a>
+<span class="sourceLineNo">112</span>  public static final String 
DELETE_CMD_USAGE = "Usage: hbase backup delete [options]";<a 
name="line.112"></a>
+<span class="sourceLineNo">113</span><a name="line.113"></a>
+<span class="sourceLineNo">114</span>  public static final String 
REPAIR_CMD_USAGE = "Usage: hbase backup repair\n";<a name="line.114"></a>
+<span class="sourceLineNo">115</span><a name="line.115"></a>
+<span class="sourceLineNo">116</span>  public static final String 
SET_CMD_USAGE = "Usage: hbase backup set COMMAND [name] [tables]\n"<a 
name="line.116"></a>
+<span class="sourceLineNo">117</span>      + "  name            Backup set 
name\n"<a name="line.117"></a>
+<span class="sourceLineNo">118</span>      + "  tables          Comma 
separated list of tables.\n" + "COMMAND is one of:\n"<a name="line.118"></a>
+<span class="sourceLineNo">119</span>      + "  add             add tables to 
a set, create a set if needed\n"<a name="line.119"></a>
+<span class="sourceLineNo">120</span>      + "  remove          remove tables 
from a set\n"<a name="line.120"></a>
+<span class="sourceLineNo">121</span>      + "  list            list all 
backup sets in the system\n"<a name="line.121"></a>
+<span class="sourceLineNo">122</span>      + "  describe        describe 
set\n" + "  delete          delete backup set\n";<a name="line.122"></a>
+<span class="sourceLineNo">123</span>  public static final String 
MERGE_CMD_USAGE = "Usage: hbase backup merge [backup_ids]\n"<a 
name="line.123"></a>
+<span class="sourceLineNo">124</span>      + "  backup_ids      Comma 
separated list of backup image ids.\n";<a name="line.124"></a>
+<span class="sourceLineNo">125</span><a name="line.125"></a>
+<span class="sourceLineNo">126</span>  public static final String USAGE_FOOTER 
= "";<a name="line.126"></a>
+<span class="sourceLineNo">127</span><a name="line.127"></a>
+<span class="sourceLineNo">128</span>  public static abstract class Command 
extends Configured {<a name="line.128"></a>
+<span class="sourceLineNo">129</span>    CommandLine cmdline;<a 
name="line.129"></a>
+<span class="sourceLineNo">130</span>    Connection conn;<a 
name="line.130"></a>
+<span class="sourceLineNo">131</span><a name="line.131"></a>
+<span class="sourceLineNo">132</span>    Command(Configuration conf) {<a 
name="line.132"></a>
+<span class="sourceLineNo">133</span>      if (conf == null) {<a 
name="line.133"></a>
+<span class="sourceLineNo">134</span>        conf = 
HBaseConfiguration.create();<a name="line.134"></a>
+<span class="sourceLineNo">135</span>      }<a name="line.135"></a>
+<span class="sourceLineNo">136</span>      setConf(conf);<a 
name="line.136"></a>
+<span class="sourceLineNo">137</span>    }<a name="line.137"></a>
+<span class="sourceLineNo">138</span><a name="line.138"></a>
+<span class="sourceLineNo">139</span>    public void execute() throws 
IOException {<a name="line.139"></a>
+<span class="sourceLineNo">140</span>      if (cmdline.hasOption("h") || 
cmdline.hasOption("help")) {<a name="line.140"></a>
+<span class="sourceLineNo">141</span>        printUsage();<a 
name="line.141"></a>
+<span class="sourceLineNo">142</span>        throw new 
IOException(INCORRECT_USAGE);<a name="line.142"></a>
+<span class="sourceLineNo">143</span>      }<a name="line.143"></a>
+<span class="sourceLineNo">144</span><a name="line.144"></a>
+<span class="sourceLineNo">145</span>      // Create connection<a 
name="line.145"></a>
+<span class="sourceLineNo">146</span>      conn = 
ConnectionFactory.createConnection(getConf());<a name="line.146"></a>
+<span class="sourceLineNo">147</span>      if (requiresNoActiveSession()) {<a 
name="line.147"></a>
+<span class="sourceLineNo">148</span>        // Check active session<a 
name="line.148"></a>
+<span class="sourceLineNo">149</span>        try (BackupSystemTable table = 
new BackupSystemTable(conn)) {<a name="line.149"></a>
+<span class="sourceLineNo">150</span>          List&lt;BackupInfo&gt; sessions 
= table.getBackupInfos(BackupState.RUNNING);<a name="line.150"></a>
+<span class="sourceLineNo">151</span><a name="line.151"></a>
+<span class="sourceLineNo">152</span>          if (sessions.size() &gt; 0) {<a 
name="line.152"></a>
+<span class="sourceLineNo">153</span>            System.err.println("Found 
backup session in a RUNNING state: ");<a name="line.153"></a>
+<span class="sourceLineNo">154</span>            
System.err.println(sessions.get(0));<a name="line.154"></a>
+<span class="sourceLineNo">155</span>            System.err.println("This may 
indicate that a previous session has failed abnormally.");<a 
name="line.155"></a>
+<span class="sourceLineNo">156</span>            System.err.println("In this 
case, backup recovery is recommended.");<a name="line.156"></a>
+<span class="sourceLineNo">157</span>            throw new IOException("Active 
session found, aborted command execution");<a name="line.157"></a>
+<span class="sourceLineNo">158</span>          }<a name="line.158"></a>
+<span class="sourceLineNo">159</span>        }<a name="line.159"></a>
+<span class="sourceLineNo">160</span>      }<a name="line.160"></a>
+<span class="sourceLineNo">161</span>      if (requiresConsistentState()) {<a 
name="line.161"></a>
+<span class="sourceLineNo">162</span>        // Check failed delete<a 
name="line.162"></a>
+<span class="sourceLineNo">163</span>        try (BackupSystemTable table = 
new BackupSystemTable(conn)) {<a name="line.163"></a>
+<span class="sourceLineNo">164</span>          String[] ids = 
table.getListOfBackupIdsFromDeleteOperation();<a name="line.164"></a>
+<span class="sourceLineNo">165</span><a name="line.165"></a>
+<span class="sourceLineNo">166</span>          if (ids != null &amp;&amp; 
ids.length &gt; 0) {<a name="line.166"></a>
+<span class="sourceLineNo">167</span>            System.err.println("Found 
failed backup DELETE coommand. ");<a name="line.167"></a>
+<span class="sourceLineNo">168</span>            System.err.println("Backup 
system recovery is required.");<a name="line.168"></a>
+<span class="sourceLineNo">169</span>            throw new IOException("Failed 
backup DELETE found, aborted command execution");<a name="line.169"></a>
+<span class="sourceLineNo">170</span>          }<a name="line.170"></a>
+<span class="sourceLineNo">171</span><a name="line.171"></a>
+<span class="sourceLineNo">172</span>          ids = 
table.getListOfBackupIdsFromMergeOperation();<a name="line.172"></a>
+<span class="sourceLineNo">173</span>          if (ids != null &amp;&amp; 
ids.length &gt; 0) {<a name="line.173"></a>
+<span class="sourceLineNo">174</span>            System.err.println("Found 
failed backup MERGE coommand. ");<a name="line.174"></a>
+<span class="sourceLineNo">175</span>            System.err.println("Backup 
system recovery is required.");<a name="line.175"></a>
+<span class="sourceLineNo">176</span>            throw new IOException("Failed 
backup MERGE found, aborted command execution");<a name="line.176"></a>
+<span class="sourceLineNo">177</span>          }<a name="line.177"></a>
+<span class="sourceLineNo">178</span>        }<a name="line.178"></a>
+<span class="sourceLineNo">179</span>      }<a name="line.179"></a>
+<span class="sourceLineNo">180</span>    }<a name="line.180"></a>
+<span class="sourceLineNo">181</span><a name="line.181"></a>
+<span class="sourceLineNo">182</span>    public void finish() throws 
IOException {<a name="line.182"></a>
+<span class="sourceLineNo">183</span>      if (conn != null) {<a 
name="line.183"></a>
+<span class="sourceLineNo">184</span>        conn.close();<a 
name="line.184"></a>
+<span class="sourceLineNo">185</span>      }<a name="line.185"></a>
+<span class="sourceLineNo">186</span>    }<a name="line.186"></a>
+<span class="sourceLineNo">187</span><a name="line.187"></a>
+<span class="sourceLineNo">188</span>    protected abstract void 
printUsage();<a name="line.188"></a>
+<span class="sourceLineNo">189</span><a name="line.189"></a>
+<span class="sourceLineNo">190</span>    /**<a name="line.190"></a>
+<span class="sourceLineNo">191</span>     * The command can't be run if active 
backup session is in progress<a name="line.191"></a>
+<span class="sourceLineNo">192</span>     * @return true if no active sessions 
are in progress<a name="line.192"></a>
+<span class="sourceLineNo">193</span>     */<a name="line.193"></a>
+<span class="sourceLineNo">194</span>    protected boolean 
requiresNoActiveSession() {<a name="line.194"></a>
+<span class="sourceLineNo">195</span>      return false;<a name="line.195"></a>
+<span class="sourceLineNo">196</span>    }<a name="line.196"></a>
+<span class="sourceLineNo">197</span><a name="line.197"></a>
+<span class="sourceLineNo">198</span>    /**<a name="line.198"></a>
+<span class="sourceLineNo">199</span>     * Command requires consistent state 
of a backup system Backup system may become inconsistent<a name="line.199"></a>
+<span class="sourceLineNo">200</span>     * because of an abnormal termination 
of a backup session or delete command<a name="line.200"></a>
+<span class="sourceLineNo">201</span>     * @return true, if yes<a 
name="line.201"></a>
+<span class="sourceLineNo">202</span>     */<a name="line.202"></a>
+<span class="sourceLineNo">203</span>    protected boolean 
requiresConsistentState() {<a name="line.203"></a>
+<span class="sourceLineNo">204</span>      return false;<a name="line.204"></a>
+<span class="sourceLineNo">205</span>    }<a name="line.205"></a>
+<span class="sourceLineNo">206</span>  }<a name="line.206"></a>
+<span class="sourceLineNo">207</span><a name="line.207"></a>
+<span class="sourceLineNo">208</span>  private BackupCommands() {<a 
name="line.208"></a>
+<span class="sourceLineNo">209</span>    throw new 
AssertionError("Instantiating utility class...");<a name="line.209"></a>
+<span class="sourceLineNo">210</span>  }<a name="line.210"></a>
+<span class="sourceLineNo">211</span><a name="line.211"></a>
+<span class="sourceLineNo">212</span>  public static Command 
createCommand(Configuration conf, BackupCommand type, CommandLine cmdline) {<a 
name="line.212"></a>
+<span class="sourceLineNo">213</span>    Command cmd;<a name="line.213"></a>
+<span class="sourceLineNo">214</span>    switch (type) {<a name="line.214"></a>
+<span class="sourceLineNo">215</span>      case CREATE:<a name="line.215"></a>
+<span class="sourceLineNo">216</span>        cmd = new CreateCommand(conf, 
cmdline);<a name="line.216"></a>
 <span class="sourceLineNo">217</span>        break;<a name="line.217"></a>
-<span class="sourceLineNo">218</span>      case PROGRESS:<a 
name="line.218"></a>
-<span class="sourceLineNo">219</span>        cmd = new ProgressCommand(conf, 
cmdline);<a name="line.219"></a>
+<span class="sourceLineNo">218</span>      case DESCRIBE:<a 
name="line.218"></a>
+<span class="sourceLineNo">219</span>        cmd = new DescribeCommand(conf, 
cmdline);<a name="line.219"></a>
 <span class="sourceLineNo">220</span>        break;<a name="line.220"></a>
-<span class="sourceLineNo">221</span>      case DELETE:<a name="line.221"></a>
-<span class="sourceLineNo">222</span>        cmd = new DeleteCommand(conf, 
cmdline);<a name="line.222"></a>
+<span class="sourceLineNo">221</span>      case PROGRESS:<a 
name="line.221"></a>
+<span class="sourceLineNo">222</span>        cmd = new ProgressCommand(conf, 
cmdline);<a name="line.222"></a>
 <span class="sourceLineNo">223</span>        break;<a name="line.223"></a>
-<span class="sourceLineNo">224</span>      case HISTORY:<a name="line.224"></a>
-<span class="sourceLineNo">225</span>        cmd = new HistoryCommand(conf, 
cmdline);<a name="line.225"></a>
+<span class="sourceLineNo">224</span>      case DELETE:<a name="line.224"></a>
+<span class="sourceLineNo">225</span>        cmd = new DeleteCommand(conf, 
cmdline);<a name="line.225"></a>
 <span class="sourceLineNo">226</span>        break;<a name="line.226"></a>
-<span class="sourceLineNo">227</span>      case SET:<a name="line.227"></a>
-<span class="sourceLineNo">228</span>        cmd = new BackupSetCommand(conf, 
cmdline);<a name="line.228"></a>
+<span class="sourceLineNo">227</span>      case HISTORY:<a name="line.227"></a>
+<span class="sourceLineNo">228</span>        cmd = new HistoryCommand(conf, 
cmdline);<a name="line.228"></a>
 <span class="sourceLineNo">229</span>        break;<a name="line.229"></a>
-<span class="sourceLineNo">230</span>      case REPAIR:<a name="line.230"></a>
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System.setProperty("mapreduce.job.queuename", queueName);<a name="line.335"></a>
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name="line.343"></a>
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name="line.344"></a>
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.withTargetRootDir(targetBackupDir).withTotalTasks(workers)<a 
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+<span class="sourceLineNo">384</span><a name="line.384"></a>
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System.out.println(CREATE_CMD_USAGE);<a name="line.391"></a>
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helpFormatter.setSyntaxPrefix("Options:");<a name="line.404"></a>
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+<span class="sourceLineNo">432</

<TRUNCATED>

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