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Posted to commits@hbase.apache.org by gi...@apache.org on 2018/12/27 14:53:22 UTC
[16/51] [partial] hbase-site git commit: Published site at
7820ba1dbdba58b1002cdfde08eb21aa7a0bb6da.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/09ea0d5f/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/CopyTable.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/CopyTable.html b/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/CopyTable.html
index e2ca07a..333ff45 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/CopyTable.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/mapreduce/CopyTable.html
@@ -29,7 +29,7 @@
<span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.util.HashMap;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.util.Map;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import java.util.Random;<a name="line.24"></a>
+<span class="sourceLineNo">024</span>import java.util.UUID;<a name="line.24"></a>
<span class="sourceLineNo">025</span><a name="line.25"></a>
<span class="sourceLineNo">026</span>import org.apache.hadoop.conf.Configured;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import org.apache.hadoop.fs.FileSystem;<a name="line.27"></a>
@@ -37,363 +37,410 @@
<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.HBaseConfiguration;<a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.HConstants;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.TableName;<a name="line.31"></a>
-<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import org.slf4j.Logger;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import org.slf4j.LoggerFactory;<a name="line.35"></a>
-<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.client.Admin;<a name="line.36"></a>
-<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.37"></a>
-<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.38"></a>
-<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.39"></a>
-<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.tool.LoadIncrementalHFiles;<a name="line.40"></a>
-<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.41"></a>
-<span class="sourceLineNo">042</span>import org.apache.hadoop.mapreduce.Job;<a name="line.42"></a>
-<span class="sourceLineNo">043</span>import org.apache.hadoop.util.Tool;<a name="line.43"></a>
-<span class="sourceLineNo">044</span>import org.apache.hadoop.util.ToolRunner;<a name="line.44"></a>
-<span class="sourceLineNo">045</span><a name="line.45"></a>
-<span class="sourceLineNo">046</span>/**<a name="line.46"></a>
-<span class="sourceLineNo">047</span> * Tool used to copy a table to another one which can be on a different setup.<a name="line.47"></a>
-<span class="sourceLineNo">048</span> * It is also configurable with a start and time as well as a specification<a name="line.48"></a>
-<span class="sourceLineNo">049</span> * of the region server implementation if different from the local cluster.<a name="line.49"></a>
-<span class="sourceLineNo">050</span> */<a name="line.50"></a>
-<span class="sourceLineNo">051</span>@InterfaceAudience.Public<a name="line.51"></a>
-<span class="sourceLineNo">052</span>public class CopyTable extends Configured implements Tool {<a name="line.52"></a>
-<span class="sourceLineNo">053</span> private static final Logger LOG = LoggerFactory.getLogger(CopyTable.class);<a name="line.53"></a>
-<span class="sourceLineNo">054</span><a name="line.54"></a>
-<span class="sourceLineNo">055</span> final static String NAME = "copytable";<a name="line.55"></a>
-<span class="sourceLineNo">056</span> long startTime = 0;<a name="line.56"></a>
-<span class="sourceLineNo">057</span> long endTime = HConstants.LATEST_TIMESTAMP;<a name="line.57"></a>
-<span class="sourceLineNo">058</span> int batch = Integer.MAX_VALUE;<a name="line.58"></a>
-<span class="sourceLineNo">059</span> int cacheRow = -1;<a name="line.59"></a>
-<span class="sourceLineNo">060</span> int versions = -1;<a name="line.60"></a>
-<span class="sourceLineNo">061</span> String tableName = null;<a name="line.61"></a>
-<span class="sourceLineNo">062</span> String startRow = null;<a name="line.62"></a>
-<span class="sourceLineNo">063</span> String stopRow = null;<a name="line.63"></a>
-<span class="sourceLineNo">064</span> String dstTableName = null;<a name="line.64"></a>
-<span class="sourceLineNo">065</span> String peerAddress = null;<a name="line.65"></a>
-<span class="sourceLineNo">066</span> String families = null;<a name="line.66"></a>
-<span class="sourceLineNo">067</span> boolean allCells = false;<a name="line.67"></a>
-<span class="sourceLineNo">068</span> static boolean shuffle = false;<a name="line.68"></a>
-<span class="sourceLineNo">069</span><a name="line.69"></a>
-<span class="sourceLineNo">070</span> boolean bulkload = false;<a name="line.70"></a>
-<span class="sourceLineNo">071</span> Path bulkloadDir = null;<a name="line.71"></a>
-<span class="sourceLineNo">072</span><a name="line.72"></a>
-<span class="sourceLineNo">073</span> private final static String JOB_NAME_CONF_KEY = "mapreduce.job.name";<a name="line.73"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.mapreduce.Import.CellImporter;<a name="line.32"></a>
+<span class="sourceLineNo">033</span>import org.apache.hadoop.hbase.mapreduce.Import.Importer;<a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.util.FSUtils;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.slf4j.Logger;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.slf4j.LoggerFactory;<a name="line.37"></a>
+<span class="sourceLineNo">038</span>import org.apache.hadoop.hbase.client.Admin;<a name="line.38"></a>
+<span class="sourceLineNo">039</span>import org.apache.hadoop.hbase.client.Connection;<a name="line.39"></a>
+<span class="sourceLineNo">040</span>import org.apache.hadoop.hbase.client.ConnectionFactory;<a name="line.40"></a>
+<span class="sourceLineNo">041</span>import org.apache.hadoop.hbase.client.Scan;<a name="line.41"></a>
+<span class="sourceLineNo">042</span>import org.apache.hadoop.hbase.tool.LoadIncrementalHFiles;<a name="line.42"></a>
+<span class="sourceLineNo">043</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.43"></a>
+<span class="sourceLineNo">044</span>import org.apache.hadoop.mapreduce.Job;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.apache.hadoop.util.Tool;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.apache.hadoop.util.ToolRunner;<a name="line.46"></a>
+<span class="sourceLineNo">047</span><a name="line.47"></a>
+<span class="sourceLineNo">048</span>/**<a name="line.48"></a>
+<span class="sourceLineNo">049</span> * Tool used to copy a table to another one which can be on a different setup.<a name="line.49"></a>
+<span class="sourceLineNo">050</span> * It is also configurable with a start and time as well as a specification<a name="line.50"></a>
+<span class="sourceLineNo">051</span> * of the region server implementation if different from the local cluster.<a name="line.51"></a>
+<span class="sourceLineNo">052</span> */<a name="line.52"></a>
+<span class="sourceLineNo">053</span>@InterfaceAudience.Public<a name="line.53"></a>
+<span class="sourceLineNo">054</span>public class CopyTable extends Configured implements Tool {<a name="line.54"></a>
+<span class="sourceLineNo">055</span> private static final Logger LOG = LoggerFactory.getLogger(CopyTable.class);<a name="line.55"></a>
+<span class="sourceLineNo">056</span><a name="line.56"></a>
+<span class="sourceLineNo">057</span> final static String NAME = "copytable";<a name="line.57"></a>
+<span class="sourceLineNo">058</span> long startTime = 0;<a name="line.58"></a>
+<span class="sourceLineNo">059</span> long endTime = HConstants.LATEST_TIMESTAMP;<a name="line.59"></a>
+<span class="sourceLineNo">060</span> int batch = Integer.MAX_VALUE;<a name="line.60"></a>
+<span class="sourceLineNo">061</span> int cacheRow = -1;<a name="line.61"></a>
+<span class="sourceLineNo">062</span> int versions = -1;<a name="line.62"></a>
+<span class="sourceLineNo">063</span> String tableName = null;<a name="line.63"></a>
+<span class="sourceLineNo">064</span> String startRow = null;<a name="line.64"></a>
+<span class="sourceLineNo">065</span> String stopRow = null;<a name="line.65"></a>
+<span class="sourceLineNo">066</span> String dstTableName = null;<a name="line.66"></a>
+<span class="sourceLineNo">067</span> String peerAddress = null;<a name="line.67"></a>
+<span class="sourceLineNo">068</span> String families = null;<a name="line.68"></a>
+<span class="sourceLineNo">069</span> boolean allCells = false;<a name="line.69"></a>
+<span class="sourceLineNo">070</span> static boolean shuffle = false;<a name="line.70"></a>
+<span class="sourceLineNo">071</span><a name="line.71"></a>
+<span class="sourceLineNo">072</span> boolean bulkload = false;<a name="line.72"></a>
+<span class="sourceLineNo">073</span> Path bulkloadDir = null;<a name="line.73"></a>
<span class="sourceLineNo">074</span><a name="line.74"></a>
-<span class="sourceLineNo">075</span> /**<a name="line.75"></a>
-<span class="sourceLineNo">076</span> * Sets up the actual job.<a name="line.76"></a>
-<span class="sourceLineNo">077</span> *<a name="line.77"></a>
-<span class="sourceLineNo">078</span> * @param args The command line parameters.<a name="line.78"></a>
-<span class="sourceLineNo">079</span> * @return The newly created job.<a name="line.79"></a>
-<span class="sourceLineNo">080</span> * @throws IOException When setting up the job fails.<a name="line.80"></a>
-<span class="sourceLineNo">081</span> */<a name="line.81"></a>
-<span class="sourceLineNo">082</span> public Job createSubmittableJob(String[] args)<a name="line.82"></a>
-<span class="sourceLineNo">083</span> throws IOException {<a name="line.83"></a>
-<span class="sourceLineNo">084</span> if (!doCommandLine(args)) {<a name="line.84"></a>
-<span class="sourceLineNo">085</span> return null;<a name="line.85"></a>
-<span class="sourceLineNo">086</span> }<a name="line.86"></a>
-<span class="sourceLineNo">087</span><a name="line.87"></a>
-<span class="sourceLineNo">088</span> Job job = Job.getInstance(getConf(), getConf().get(JOB_NAME_CONF_KEY, NAME + "_" + tableName));<a name="line.88"></a>
-<span class="sourceLineNo">089</span> job.setJarByClass(CopyTable.class);<a name="line.89"></a>
-<span class="sourceLineNo">090</span> Scan scan = new Scan();<a name="line.90"></a>
-<span class="sourceLineNo">091</span><a name="line.91"></a>
-<span class="sourceLineNo">092</span> scan.setBatch(batch);<a name="line.92"></a>
-<span class="sourceLineNo">093</span> scan.setCacheBlocks(false);<a name="line.93"></a>
-<span class="sourceLineNo">094</span><a name="line.94"></a>
-<span class="sourceLineNo">095</span> if (cacheRow > 0) {<a name="line.95"></a>
-<span class="sourceLineNo">096</span> scan.setCaching(cacheRow);<a name="line.96"></a>
-<span class="sourceLineNo">097</span> } else {<a name="line.97"></a>
-<span class="sourceLineNo">098</span> scan.setCaching(getConf().getInt(HConstants.HBASE_CLIENT_SCANNER_CACHING, 100));<a name="line.98"></a>
-<span class="sourceLineNo">099</span> }<a name="line.99"></a>
-<span class="sourceLineNo">100</span><a name="line.100"></a>
-<span class="sourceLineNo">101</span> scan.setTimeRange(startTime, endTime);<a name="line.101"></a>
+<span class="sourceLineNo">075</span> boolean readingSnapshot = false;<a name="line.75"></a>
+<span class="sourceLineNo">076</span> String snapshot = null;<a name="line.76"></a>
+<span class="sourceLineNo">077</span><a name="line.77"></a>
+<span class="sourceLineNo">078</span> private final static String JOB_NAME_CONF_KEY = "mapreduce.job.name";<a name="line.78"></a>
+<span class="sourceLineNo">079</span><a name="line.79"></a>
+<span class="sourceLineNo">080</span> private Path generateUniqTempDir(boolean withDirCreated) throws IOException {<a name="line.80"></a>
+<span class="sourceLineNo">081</span> FileSystem fs = FSUtils.getCurrentFileSystem(getConf());<a name="line.81"></a>
+<span class="sourceLineNo">082</span> Path dir = new Path(fs.getWorkingDirectory(), NAME);<a name="line.82"></a>
+<span class="sourceLineNo">083</span> if (!fs.exists(dir)) {<a name="line.83"></a>
+<span class="sourceLineNo">084</span> fs.mkdirs(dir);<a name="line.84"></a>
+<span class="sourceLineNo">085</span> }<a name="line.85"></a>
+<span class="sourceLineNo">086</span> Path newDir = new Path(dir, UUID.randomUUID().toString());<a name="line.86"></a>
+<span class="sourceLineNo">087</span> if (withDirCreated) {<a name="line.87"></a>
+<span class="sourceLineNo">088</span> fs.mkdirs(newDir);<a name="line.88"></a>
+<span class="sourceLineNo">089</span> }<a name="line.89"></a>
+<span class="sourceLineNo">090</span> return newDir;<a name="line.90"></a>
+<span class="sourceLineNo">091</span> }<a name="line.91"></a>
+<span class="sourceLineNo">092</span><a name="line.92"></a>
+<span class="sourceLineNo">093</span> private void initCopyTableMapperReducerJob(Job job, Scan scan) throws IOException {<a name="line.93"></a>
+<span class="sourceLineNo">094</span> Class<? extends TableMapper> mapper = bulkload ? CellImporter.class : Importer.class;<a name="line.94"></a>
+<span class="sourceLineNo">095</span> if (readingSnapshot) {<a name="line.95"></a>
+<span class="sourceLineNo">096</span> TableMapReduceUtil.initTableSnapshotMapperJob(snapshot, scan, mapper, null, null, job, true,<a name="line.96"></a>
+<span class="sourceLineNo">097</span> generateUniqTempDir(true));<a name="line.97"></a>
+<span class="sourceLineNo">098</span> } else {<a name="line.98"></a>
+<span class="sourceLineNo">099</span> TableMapReduceUtil.initTableMapperJob(tableName, scan, mapper, null, null, job);<a name="line.99"></a>
+<span class="sourceLineNo">100</span> }<a name="line.100"></a>
+<span class="sourceLineNo">101</span> }<a name="line.101"></a>
<span class="sourceLineNo">102</span><a name="line.102"></a>
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-<span class="sourceLineNo">106</span> if (shuffle) {<a name="line.106"></a>
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-<span class="sourceLineNo">109</span> if (versions >= 0) {<a name="line.109"></a>
-<span class="sourceLineNo">110</span> scan.setMaxVersions(versions);<a name="line.110"></a>
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-<span class="sourceLineNo">112</span><a name="line.112"></a>
-<span class="sourceLineNo">113</span> if (startRow != null) {<a name="line.113"></a>
-<span class="sourceLineNo">114</span> scan.setStartRow(Bytes.toBytesBinary(startRow));<a name="line.114"></a>
-<span class="sourceLineNo">115</span> }<a name="line.115"></a>
-<span class="sourceLineNo">116</span><a name="line.116"></a>
-<span class="sourceLineNo">117</span> if (stopRow != null) {<a name="line.117"></a>
-<span class="sourceLineNo">118</span> scan.setStopRow(Bytes.toBytesBinary(stopRow));<a name="line.118"></a>
-<span class="sourceLineNo">119</span> }<a name="line.119"></a>
-<span class="sourceLineNo">120</span><a name="line.120"></a>
-<span class="sourceLineNo">121</span> if(families != null) {<a name="line.121"></a>
-<span class="sourceLineNo">122</span> String[] fams = families.split(",");<a name="line.122"></a>
-<span class="sourceLineNo">123</span> Map<String,String> cfRenameMap = new HashMap<>();<a name="line.123"></a>
-<span class="sourceLineNo">124</span> for(String fam : fams) {<a name="line.124"></a>
-<span class="sourceLineNo">125</span> String sourceCf;<a name="line.125"></a>
-<span class="sourceLineNo">126</span> if(fam.contains(":")) {<a name="line.126"></a>
-<span class="sourceLineNo">127</span> // fam looks like "sourceCfName:destCfName"<a name="line.127"></a>
-<span class="sourceLineNo">128</span> String[] srcAndDest = fam.split(":", 2);<a name="line.128"></a>
-<span class="sourceLineNo">129</span> sourceCf = srcAndDest[0];<a name="line.129"></a>
-<span class="sourceLineNo">130</span> String destCf = srcAndDest[1];<a name="line.130"></a>
-<span class="sourceLineNo">131</span> cfRenameMap.put(sourceCf, destCf);<a name="line.131"></a>
-<span class="sourceLineNo">132</span> } else {<a name="line.132"></a>
-<span class="sourceLineNo">133</span> // fam is just "sourceCf"<a name="line.133"></a>
-<span class="sourceLineNo">134</span> sourceCf = fam;<a name="line.134"></a>
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-<span class="sourceLineNo">136</span> scan.addFamily(Bytes.toBytes(sourceCf));<a name="line.136"></a>
-<span class="sourceLineNo">137</span> }<a name="line.137"></a>
-<span class="sourceLineNo">138</span> Import.configureCfRenaming(job.getConfiguration(), cfRenameMap);<a name="line.138"></a>
+<span class="sourceLineNo">103</span> /**<a name="line.103"></a>
+<span class="sourceLineNo">104</span> * Sets up the actual job.<a name="line.104"></a>
+<span class="sourceLineNo">105</span> *<a name="line.105"></a>
+<span class="sourceLineNo">106</span> * @param args The command line parameters.<a name="line.106"></a>
+<span class="sourceLineNo">107</span> * @return The newly created job.<a name="line.107"></a>
+<span class="sourceLineNo">108</span> * @throws IOException When setting up the job fails.<a name="line.108"></a>
+<span class="sourceLineNo">109</span> */<a name="line.109"></a>
+<span class="sourceLineNo">110</span> public Job createSubmittableJob(String[] args) throws IOException {<a name="line.110"></a>
+<span class="sourceLineNo">111</span> if (!doCommandLine(args)) {<a name="line.111"></a>
+<span class="sourceLineNo">112</span> return null;<a name="line.112"></a>
+<span class="sourceLineNo">113</span> }<a name="line.113"></a>
+<span class="sourceLineNo">114</span><a name="line.114"></a>
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+<span class="sourceLineNo">116</span> Job job = Job.getInstance(getConf(), getConf().get(JOB_NAME_CONF_KEY, jobName));<a name="line.116"></a>
+<span class="sourceLineNo">117</span> job.setJarByClass(CopyTable.class);<a name="line.117"></a>
+<span class="sourceLineNo">118</span> Scan scan = new Scan();<a name="line.118"></a>
+<span class="sourceLineNo">119</span><a name="line.119"></a>
+<span class="sourceLineNo">120</span> scan.setBatch(batch);<a name="line.120"></a>
+<span class="sourceLineNo">121</span> scan.setCacheBlocks(false);<a name="line.121"></a>
+<span class="sourceLineNo">122</span><a name="line.122"></a>
+<span class="sourceLineNo">123</span> if (cacheRow > 0) {<a name="line.123"></a>
+<span class="sourceLineNo">124</span> scan.setCaching(cacheRow);<a name="line.124"></a>
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+<span class="sourceLineNo">126</span> scan.setCaching(getConf().getInt(HConstants.HBASE_CLIENT_SCANNER_CACHING, 100));<a name="line.126"></a>
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+<span class="sourceLineNo">128</span><a name="line.128"></a>
+<span class="sourceLineNo">129</span> scan.setTimeRange(startTime, endTime);<a name="line.129"></a>
+<span class="sourceLineNo">130</span><a name="line.130"></a>
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+<span class="sourceLineNo">132</span> scan.setRaw(true);<a name="line.132"></a>
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+<span class="sourceLineNo">134</span> if (shuffle) {<a name="line.134"></a>
+<span class="sourceLineNo">135</span> job.getConfiguration().set(TableInputFormat.SHUFFLE_MAPS, "true");<a name="line.135"></a>
+<span class="sourceLineNo">136</span> }<a name="line.136"></a>
+<span class="sourceLineNo">137</span> if (versions >= 0) {<a name="line.137"></a>
+<span class="sourceLineNo">138</span> scan.readVersions(versions);<a name="line.138"></a>
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-<span class="sourceLineNo">142</span> if (bulkload) {<a name="line.142"></a>
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-<span class="sourceLineNo">144</span> job);<a name="line.144"></a>
-<span class="sourceLineNo">145</span><a name="line.145"></a>
-<span class="sourceLineNo">146</span> // We need to split the inputs by destination tables so that output of Map can be bulk-loaded.<a name="line.146"></a>
-<span class="sourceLineNo">147</span> TableInputFormat.configureSplitTable(job, TableName.valueOf(dstTableName));<a name="line.147"></a>
+<span class="sourceLineNo">140</span><a name="line.140"></a>
+<span class="sourceLineNo">141</span> if (startRow != null) {<a name="line.141"></a>
+<span class="sourceLineNo">142</span> scan.withStartRow(Bytes.toBytesBinary(startRow));<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> if (stopRow != null) {<a name="line.145"></a>
+<span class="sourceLineNo">146</span> scan.withStopRow(Bytes.toBytesBinary(stopRow));<a name="line.146"></a>
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-<span class="sourceLineNo">350</span> /**<a name="line.350"></a>
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+<span class="sourceLineNo">153</span> String sourceCf;<a name="line.153"></a>
+<span class="sourceLineNo">154</span> if(fam.contains(":")) {<a name="line.154"></a>
+<span class="sourceLineNo">155</span> // fam looks like "sourceCfName:destCfName"<a name="line.155"></a>
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+<span class="sourceLineNo">158</span> String destCf = srcAndDest[1];<a name="line.158"></a>
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+<span class="sourceLineNo">169</span><a name="line.169"></a>
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+<span class="sourceLineNo">172</span><a name="line.172"></a>
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+<span class="sourceLineNo">176</span> bulkloadDir = generateUniqTempDir(false);<a name="line.176"></a>
+<span class="sourceLineNo">177</span> LOG.info("HFiles will be stored at " + this.bulkloadDir);<a name="line.177"></a>
+<span class="sourceLineNo">178</span> HFileOutputFormat2.setOutputPath(job, bulkloadDir);<a name="line.178"></a>
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+<span class="sourceLineNo">189</span><a name="line.189"></a>
+<span class="sourceLineNo">190</span> return job;<a name="line.190"></a>
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+<span class="sourceLineNo">192</span><a name="line.192"></a>
+<span class="sourceLineNo">193</span> /*<a name="line.193"></a>
+<span class="sourceLineNo">194</span> * @param errorMsg Error message. Can be null.<a name="line.194"></a>
+<span class="sourceLineNo">195</span> */<a name="line.195"></a>
+<span class="sourceLineNo">196</span> private static void printUsage(final String errorMsg) {<a name="line.196"></a>
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+<span class="sourceLineNo">198</span> System.err.println("ERROR: " + errorMsg);<a name="line.198"></a>
+<span class="sourceLineNo">199</span> }<a name="line.199"></a>
+<span class="sourceLineNo">200</span> System.err.println("Usage: CopyTable [general options] [--starttime=X] [--endtime=Y] " +<a name="line.200"></a>
+<span class="sourceLineNo">201</span> "[--new.name=NEW] [--peer.adr=ADR] <tablename | snapshotName>");<a name="line.201"></a>
+<span class="sourceLineNo">202</span> System.err.println();<a name="line.202"></a>
+<span class="sourceLineNo">203</span> System.err.println("Options:");<a name="line.203"></a>
+<span class="sourceLineNo">204</span> System.err.println(" rs.class hbase.regionserver.class of the peer cluster");<a name="line.204"></a>
+<span class="sourceLineNo">205</span> System.err.println(" specify if different from current cluster");<a name="line.205"></a>
+<span class="sourceLineNo">206</span> System.err.println(" rs.impl hbase.regionserver.impl of the peer cluster");<a name="line.206"></a>
+<span class="sourceLineNo">207</span> System.err.println(" startrow the start row");<a name="line.207"></a>
+<span class="sourceLineNo">208</span> System.err.println(" stoprow the stop row");<a name="line.208"></a>
+<span class="sourceLineNo">209</span> System.err.println(" starttime beginning of the time range (unixtime in millis)");<a name="line.209"></a>
+<span class="sourceLineNo">210</span> System.err.println(" without endtime means from starttime to forever");<a name="line.210"></a>
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+<span class="sourceLineNo">212</span> System.err.println(" versions number of cell versions to copy");<a name="line.212"></a>
+<span class="sourceLineNo">213</span> System.err.println(" new.name new table's name");<a name="line.213"></a>
+<span class="sourceLineNo">214</span> System.err.println(" peer.adr Address of the peer cluster given in the format");<a name="line.214"></a>
+<span class="sourceLineNo">215</span> System.err.println(" hbase.zookeeper.quorum:hbase.zookeeper.client"<a name="line.215"></a>
+<span class="sourceLineNo">216</span> + ".port:zookeeper.znode.parent");<a name="line.216"></a>
+<span class="sourceLineNo">217</span> System.err.println(" families comma-separated list of families to copy");<a name="line.217"></a>
+<span class="sourceLineNo">218</span> System.err.println(" To copy from cf1 to cf2, give sourceCfName:destCfName. ");<a name="line.218"></a>
+<span class="sourceLineNo">219</span> System.err.println(" To keep the same name, just give \"cfName\"");<a name="line.219"></a>
+<span class="sourceLineNo">220</span> System.err.println(" all.cells also copy delete markers and deleted cells");<a name="line.220"></a>
+<span class="sourceLineNo">221</span> System.err.println(" bulkload Write input into HFiles and bulk load to the destination "<a name="line.221"></a>
+<span class="sourceLineNo">222</span> + "table");<a name="line.222"></a>
+<span class="sourceLineNo">223</span> System.err.println(" snapshot Copy the data from snapshot to destination table.");<a name="line.223"></a>
+<span class="sourceLineNo">224</span> System.err.println();<a name="line.224"></a>
+<span class="sourceLineNo">225</span> System.err.println("Args:");<a name="line.225"></a>
+<span class="sourceLineNo">226</span> System.err.println(" tablename Name of the table to copy");<a name="line.226"></a>
+<span class="sourceLineNo">227</span> System.err.println();<a name="line.227"></a>
+<span class="sourceLineNo">228</span> System.err.println("Examples:");<a name="line.228"></a>
+<span class="sourceLineNo">229</span> System.err.println(" To copy 'TestTable' to a cluster that uses replication for a 1 hour window:");<a name="line.229"></a>
+<span class="sourceLineNo">230</span> System.err.println(" $ hbase " +<a name="line.230"></a>
+<span class="sourceLineNo">231</span> "org.apache.hadoop.hbase.mapreduce.CopyTable --starttime=1265875194289 --endtime=1265878794289 " +<a name="line.231"></a>
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+<span class="sourceLineNo">233</span> System.err.println(" To copy data from 'sourceTableSnapshot' to 'destTable': ");<a name="line.233"></a>
+<span class="sourceLineNo">234</span> System.err.println(" $ hbase org.apache.hadoop.hbase.mapreduce.CopyTable "<a name="line.234"></a>
+<span class="sourceLineNo">235</span> + "--snapshot --new.name=destTable sourceTableSnapshot");<a name="line.235"></a>
+<span class="sourceLineNo">236</span> System.err.println(" To copy data from 'sourceTableSnapshot' and bulk load to 'destTable': ");<a name="line.236"></a>
+<span class="sourceLineNo">237</span> System.err.println(" $ hbase org.apache.hadoop.hbase.mapreduce.CopyTable "<a name="line.237"></a>
+<span class="sourceLineNo">238</span> + "--new.name=destTable --snapshot --bulkload sourceTableSnapshot");<a name="line.238"></a>
+<span class="sourceLineNo">239</span> System.err.println("For performance consider the following general option:\n"<a name="line.239"></a>
+<span class="sourceLineNo">240</span> + " It is recommended that you set the following to >=100. A higher value uses more memory but\n"<a name="line.240"></a>
+<span class="sourceLineNo">241</span> + " decreases the round trip time to the server and may increase performance.\n"<a name="line.241"></a>
+<span class="sourceLineNo">242</span> + " -Dhbase.client.scanner.caching=100\n"<a name="line.242"></a>
+<span class="sourceLineNo">243</span> + " The following should always be set to false, to prevent writing data twice, which may produce \n"<a name="line.243"></a>
+<span class="sourceLineNo">244</span> + " inaccurate results.\n"<a name="line.244"></a>
+<span class="sourceLineNo">245</span> + " -Dmapreduce.map.speculative=false");<a name="line.245"></a>
+<span class="sourceLineNo">246</span> }<a name="line.246"></a>
+<span class="sourceLineNo">247</span><a name="line.247"></a>
+<span class="sourceLineNo">248</span> private boolean doCommandLine(final String[] args) {<a name="line.248"></a>
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+<span class="sourceLineNo">252</span> }<a name="line.252"></a>
+<span class="sourceLineNo">253</span> try {<a name="line.253"></a>
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+<span class="sourceLineNo">255</span> String cmd = args[i];<a name="line.255"></a>
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+<span class="sourceLineNo">257</span> printUsage(null);<a name="line.257"></a>
+<span class="sourceLineNo">258</span> return false;<a name="line.258"></a>
+<span class="sourceLineNo">259</span> }<a name="line.259"></a>
+<span class="sourceLineNo">260</span><a name="line.260"></a>
+<span class="sourceLineNo">261</span> final String startRowArgKey = "--startrow=";<a name="line.261"></a>
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+<span class="sourceLineNo">266</span><a name="line.266"></a>
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+<span class="sourceLineNo">272</span><a name="line.272"></a>
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+<span class="sourceLineNo">278</span><a name="line.278"></a>
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+<span class="sourceLineNo">282</span> continue;<a name="line.282"></a>
+<span class="sourceLineNo">283</span> }<a name="line.283"></a>
+<span class="sourceLineNo">284</span><a name="line.284"></a>
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+<span class="sourceLineNo">289</span> }<a name="line.289"></a>
+<span class="sourceLineNo">290</span><a name="line.290"></a>
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+<span class="sourceLineNo">295</span> }<a name="line.295"></a>
+<span class="sourceLineNo">296</span><a name="line.296"></a>
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+<span class="sourceLineNo">302</span><a name="line.302"></a>
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+<span class="sourceLineNo">306</span> continue;<a name="line.306"></a>
+<span class="sourceLineNo">307</span> }<a name="line.307"></a>
+<span class="sourceLineNo">308</span><a name="line.308"></a>
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+<span class="sourceLineNo">312</span> continue;<a name="line.312"></a>
+<span class="sourceLineNo">313</span> }<a name="line.313"></a>
+<span class="sourceLineNo">314</span><a name="line.314"></a>
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+<span class="sourceLineNo">318</span> continue;<a name="line.318"></a>
+<span class="sourceLineNo">319</span> }<a name="line.319"></a>
+<span class="sourceLineNo">320</span><a name="line.320"></a>
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+<span class="sourceLineNo">322</span> allCells = true;<a name="line.322"></a>
+<span class="sourceLineNo">323</span> continue;<a name="line.323"></a>
+<span class="sourceLineNo">324</span> }<a name="line.324"></a>
+<span class="sourceLineNo">325</span><a name="line.325"></a>
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+<span class="sourceLineNo">327</span> bulkload = true;<a name="line.327"></a>
+<span class="sourceLineNo">328</span> continue;<a name="line.328"></a>
+<span class="sourceLineNo">329</span> }<a name="line.329"></a>
+<span class="sourceLineNo">330</span><a name="line.330"></a>
+<span class="sourceLineNo">331</span> if (cmd.startsWith("--shuffle")) {<a name="line.331"></a>
+<span class="sourceLineNo">332</span> shuffle = true;<a name="line.332"></a>
+<span class="sourceLineNo">333</span> continue;<a name="line.333"></a>
+<span class="sourceLineNo">334</span> }<a name="line.334"></a>
+<span class="sourceLineNo">335</span><a name="line.335"></a>
+<span class="sourceLineNo">336</span> if(cmd.startsWith("--snapshot")){<a name="line.336"></a>
+<span class="sourceLineNo">337</span> readingSnapshot = true;<a name="line.337"></a>
+<span class="sourceLineNo">338</span> continue;<a name="line.338"></a>
+<span class="sourceLineNo">339</span> }<a name="line.339"></a>
+<span class="sourceLineNo">340</span><a name="line.340"></a>
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+<span class="sourceLineNo">343</span> snapshot = cmd;<a name="line.343"></a>
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+<span class="sourceLineNo">346</span> }<a name="line.346"></a>
+<span class="sourceLineNo">347</span> } else {<a name="line.347"></a>
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+<span class="sourceLineNo">349</span> return false;<a name="line.349"></a>
+<span class="sourceLineNo">350</span> }<a name="line.350"></a>
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+<span class="sourceLineNo">353</span> printUsage("At least a new table name or a peer address must be specified");<a name="line.353"></a>
+<span class="sourceLineNo">354</span> return false;<a name="line.354"></a>
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+<span class="sourceLineNo">356</span> if ((endTime != 0) && (startTime > endTime)) {<a name="line.356"></a>
+<span class="sourceLineNo">357</span> printUsage("Invalid time range filter: starttime=" + startTime + " > endtime=" + endTime);<a name="line.357"></a>
+<span class="sourceLineNo">358</span> return false;<a name="line.358"></a>
+<span class="sourceLineNo">359</span> }<a name="line.359"></a>
<span class="sourceLineNo">360</span><a name="line.360"></a>
-<span class="sourceLineNo">361</span> @Override<a name="line.361"></a>
-<span class="sourceLineNo">362</span> public int run(String[] args) throws Exception {<a name="line.362"></a>
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-<span class="sourceLineNo">365</span> if (!job.waitForCompletion(true)) {<a name="line.365"></a>
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-<span class="sourceLineNo">367</span> if (bulkload) {<a name="line.367"></a>
-<span class="sourceLineNo">368</span> LOG.info("Files are not bulkloaded!");<a name="line.368"></a>
+<span class="sourceLineNo">361</span> if (bulkload && peerAddress != null) {<a name="line.361"></a>
+<span class="sourceLineNo">362</span> printUsage("Remote bulkload is not supported!");<a name="line.362"></a>
+<span class="sourceLineNo">363</span> return false;<a name="line.363"></a>
+<span class="sourceLineNo">364</span> }<a name="line.364"></a>
+<span class="sourceLineNo">365</span><a name="line.365"></a>
+<span class="sourceLineNo">366</span> if (readingSnapshot && peerAddress != null) {<a name="line.366"></a>
+<span class="sourceLineNo">367</span> printUsage("Loading data from snapshot to remote peer cluster is not supported.");<a name="line.367"></a>
+<span class="sourceLineNo">368</span> return false;<a name="line.368"></a>
<span class="sourceLineNo">369</span> }<a name="line.369"></a>
-<span class="sourceLineNo">370</span> return 1;<a name="line.370"></a>
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-<span class="sourceLineNo">372</span> int code = 0;<a name="line.372"></a>
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-<span class="sourceLineNo">374</span> code = new LoadIncrementalHFiles(this.getConf())<a name="line.374"></a>
-<span class="sourceLineNo">375</span> .run(new String[] { this.bulkloadDir.toString(), this.dstTableName });<a name="line.375"></a>
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-<span class="sourceLineNo">378</span> // LoadIncrementalHFiles.<a name="line.378"></a>
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-<span class="sourceLineNo">381</span> LOG.error("Deleting folder " + bulkloadDir + " failed!");<a name="line.381"></a>
-<span class="sourceLineNo">382</span> code = 1;<a name="line.382"></a>
-<span class="sourceLineNo">383</span> }<a name="line.383"></a>
-<span class="sourceLineNo">384</span> }<a name="line.384"></a>
-<span class="sourceLineNo">385</span> }<a name="line.385"></a>
-<span class="sourceLineNo">386</span> return code;<a name="line.386"></a>
-<span class="sourceLineNo">387</span> }<a name="line.387"></a>
-<span class="sourceLineNo">388</span>}<a name="line.388"></a>
+<span class="sourceLineNo">370</span><a name="line.370"></a>
+<span class="sourceLineNo">371</span> if (readingSnapshot && dstTableName == null) {<a name="line.371"></a>
+<span class="sourceLineNo">372</span> printUsage("The --new.name=<table> for destination table should be "<a name="line.372"></a>
+<span class="sourceLineNo">373</span> + "provided when copying data from snapshot .");<a name="line.373"></a>
+<span class="sourceLineNo">374</span> return false;<a name="line.374"></a>
+<span class="sourceLineNo">375</span> }<a name="line.375"></a>
+<span class="sourceLineNo">376</span><a name="line.376"></a>
+<span class="sourceLineNo">377</span> if (readingSnapshot && snapshot == null) {<a name="line.377"></a>
+<span class="sourceLineNo">378</span> printUsage("Snapshot shouldn't be null when --snapshot is enabled.");<a name="line.378"></a>
+<span class="sourceLineNo">379</span> return false;<a name="line.379"></a>
+<span class="sourceLineNo">380</span> }<a name="line.380"></a>
+<span class="sourceLineNo">381</span><a name="line.381"></a>
+<span class="sourceLineNo">382</span> // set dstTableName if necessary<a name="line.382"></a>
+<span class="sourceLineNo">383</span> if (dstTableName == null) {<a name="line.383"></a>
+<span class="sourceLineNo">384</span> dstTableName = tableName;<a name="line.384"></a>
+<span class="sourceLineNo">385</span> }<a name="line.385"></a>
+<span class="sourceLineNo">386</span> } catch (Exception e) {<a name="line.386"></a>
+<span class="sourceLineNo">387</span> LOG.error("Failed to parse commandLine arguments", e);<a name="line.387"></a>
+<span class="sourceLineNo">388</span> printUsage("Can't start because " + e.getMessage());<a name="line.388"></a>
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+<span class="sourceLineNo">390</span> }<a name="line.390"></a>
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+<span class="sourceLineNo">393</span><a name="line.393"></a>
+<span class="sourceLineNo">394</span> /**<a name="line.394"></a>
+<span class="sourceLineNo">395</span> * Main entry point.<a name="line.395"></a>
+<span class="sourceLineNo">396</span> *<a name="line.396"></a>
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+<span class="sourceLineNo">399</span> */<a name="line.399"></a>
+<span class="sourceLineNo">400</span> public static void main(String[] args) throws Exception {<a name="line.400"></a>
+<span class="sourceLineNo">401</span> int ret = ToolRunner.run(HBaseConfiguration.create(), new CopyTable(), args);<a name="line.401"></a>
+<span class="sourceLineNo">402</span> System.exit(ret);<a name="line.402"></a>
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+<span class="sourceLineNo">404</span><a name="line.404"></a>
+<span class="sourceLineNo">405</span> @Override<a name="line.405"></a>
+<span class="sourceLineNo">406</span> public int run(String[] args) throws Exception {<a name="line.406"></a>
+<span class="sourceLineNo">407</span> Job job = createSubmittableJob(args);<a name="line.407"></a>
+<span class="sourceLineNo">408</span> if (job == null) return 1;<a name="line.408"></a>
+<span class="sourceLineNo">409</span> if (!job.waitForCompletion(true)) {<a name="line.409"></a>
+<span class="sourceLineNo">410</span> LOG.info("Map-reduce job failed!");<a name="line.410"></a>
+<span class="sourceLineNo">411</span> if (bulkload) {<a name="line.411"></a>
+<span class="sourceLineNo">412</span> LOG.info("Files are not bulkloaded!");<a name="line.412"></a>
+<span class="sourceLineNo">413</span> }<a name="line.413"></a>
+<span class="sourceLineNo">414</span> return 1;<a name="line.414"></a>
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+<span class="sourceLineNo">416</span> int code = 0;<a name="line.416"></a>
+<span class="sourceLineNo">417</span> if (bulkload) {<a name="line.417"></a>
+<span class="sourceLineNo">418</span> LOG.info("Trying to bulk load data to destination table: " + dstTableName);<a name="line.418"></a>
+<span class="sourceLineNo">419</span> LOG.info("command: ./bin/hbase org.apache.hadoop.hbase.tool.LoadIncrementalHFiles {} {}",<a name="line.419"></a>
+<span class="sourceLineNo">420</span> this.bulkloadDir.toString(), this.dstTableName);<a name="line.420"></a>
+<span class="sourceLineNo">421</span> code = new LoadIncrementalHFiles(this.getConf())<a name="line.421"></a>
+<span class="sourceLineNo">422</span> .run(new String[] { this.bulkloadDir.toString(), this.dstTableName });<a name="line.422"></a>
+<span class="sourceLineNo">423</span> if (code == 0) {<a name="line.423"></a>
+<span class="sourceLineNo">424</span> // bulkloadDir is deleted only LoadIncrementalHFiles was successful so that one can rerun<a name="line.424"></a>
+<span class="sourceLineNo">425</span> // LoadIncrementalHFiles.<a name="line.425"></a>
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+<span class="sourceLineNo">427</span> if (!fs.delete(this.bulkloadDir, true)) {<a name="line.427"></a>
+<span class="sourceLineNo">428</span> LOG.error("Deleting folder " + bulkloadDir + " failed!");<a name="line.428"></a>
+<span class="sourceLineNo">429</span> code = 1;<a name="line.429"></a>
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+<span class="sourceLineNo">432</span> }<a name="line.432"></a>
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+<span class="sourceLineNo">434</span> }<a name="line.434"></a>
+<span class="sourceLineNo">435</span>}<a name="line.435"></a>