You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@hbase.apache.org by gi...@apache.org on 2018/08/12 14:49:31 UTC
[15/21] hbase-site git commit: Published site at
953e5aa88c992cec213bc57c2db12b78908f357f.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/8e1d7469/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/TimeRangeTracker.SyncTimeRangeTracker.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/TimeRangeTracker.SyncTimeRangeTracker.html b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/TimeRangeTracker.SyncTimeRangeTracker.html
index 5ad4bfc..ebd3424 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/TimeRangeTracker.SyncTimeRangeTracker.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/regionserver/TimeRangeTracker.SyncTimeRangeTracker.html
@@ -27,326 +27,339 @@
<span class="sourceLineNo">019</span>package org.apache.hadoop.hbase.regionserver;<a name="line.19"></a>
<span class="sourceLineNo">020</span><a name="line.20"></a>
<span class="sourceLineNo">021</span>import java.io.ByteArrayInputStream;<a name="line.21"></a>
-<span class="sourceLineNo">022</span>import java.io.DataInputStream;<a name="line.22"></a>
-<span class="sourceLineNo">023</span>import java.io.IOException;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.24"></a>
-<span class="sourceLineNo">025</span><a name="line.25"></a>
-<span class="sourceLineNo">026</span>import org.apache.hadoop.hbase.Cell;<a name="line.26"></a>
-<span class="sourceLineNo">027</span>import org.apache.hadoop.hbase.CellUtil;<a name="line.27"></a>
-<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.PrivateCellUtil;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.io.TimeRange;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.30"></a>
-<span class="sourceLineNo">031</span><a name="line.31"></a>
-<span class="sourceLineNo">032</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.32"></a>
-<span class="sourceLineNo">033</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.33"></a>
-<span class="sourceLineNo">034</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.34"></a>
-<span class="sourceLineNo">035</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;<a name="line.35"></a>
-<span class="sourceLineNo">036</span><a name="line.36"></a>
-<span class="sourceLineNo">037</span>/**<a name="line.37"></a>
-<span class="sourceLineNo">038</span> * Stores minimum and maximum timestamp values, it is [minimumTimestamp, maximumTimestamp] in<a name="line.38"></a>
-<span class="sourceLineNo">039</span> * interval notation.<a name="line.39"></a>
-<span class="sourceLineNo">040</span> * Use this class at write-time ONLY. Too much synchronization to use at read time<a name="line.40"></a>
-<span class="sourceLineNo">041</span> * Use {@link TimeRange} at read time instead of this. See toTimeRange() to make TimeRange to use.<a name="line.41"></a>
-<span class="sourceLineNo">042</span> * MemStores use this class to track minimum and maximum timestamps. The TimeRangeTracker made by<a name="line.42"></a>
-<span class="sourceLineNo">043</span> * the MemStore is passed to the StoreFile for it to write out as part a flush in the the file<a name="line.43"></a>
-<span class="sourceLineNo">044</span> * metadata. If no memstore involved -- i.e. a compaction -- then the StoreFile will calculate its<a name="line.44"></a>
-<span class="sourceLineNo">045</span> * own TimeRangeTracker as it appends. The StoreFile serialized TimeRangeTracker is used<a name="line.45"></a>
-<span class="sourceLineNo">046</span> * at read time via an instance of {@link TimeRange} to test if Cells fit the StoreFile TimeRange.<a name="line.46"></a>
-<span class="sourceLineNo">047</span> */<a name="line.47"></a>
-<span class="sourceLineNo">048</span>@InterfaceAudience.Private<a name="line.48"></a>
-<span class="sourceLineNo">049</span>public abstract class TimeRangeTracker {<a name="line.49"></a>
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-<span class="sourceLineNo">051</span> public enum Type {<a name="line.51"></a>
-<span class="sourceLineNo">052</span> // thread-unsafe<a name="line.52"></a>
-<span class="sourceLineNo">053</span> NON_SYNC,<a name="line.53"></a>
-<span class="sourceLineNo">054</span> // thread-safe<a name="line.54"></a>
-<span class="sourceLineNo">055</span> SYNC<a name="line.55"></a>
-<span class="sourceLineNo">056</span> }<a name="line.56"></a>
-<span class="sourceLineNo">057</span><a name="line.57"></a>
-<span class="sourceLineNo">058</span> static final long INITIAL_MIN_TIMESTAMP = Long.MAX_VALUE;<a name="line.58"></a>
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-<span class="sourceLineNo">060</span><a name="line.60"></a>
-<span class="sourceLineNo">061</span> public static TimeRangeTracker create(Type type) {<a name="line.61"></a>
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-<span class="sourceLineNo">064</span> return new NonSyncTimeRangeTracker();<a name="line.64"></a>
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-<span class="sourceLineNo">068</span> throw new UnsupportedOperationException("The type:" + type + " is unsupported");<a name="line.68"></a>
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-<span class="sourceLineNo">075</span> return new NonSyncTimeRangeTracker(trt);<a name="line.75"></a>
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-<span class="sourceLineNo">077</span> return new SyncTimeRangeTracker(trt);<a name="line.77"></a>
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-<span class="sourceLineNo">085</span> case NON_SYNC:<a name="line.85"></a>
-<span class="sourceLineNo">086</span> return new NonSyncTimeRangeTracker(minimumTimestamp, maximumTimestamp);<a name="line.86"></a>
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-<span class="sourceLineNo">090</span> throw new UnsupportedOperationException("The type:" + type + " is unsupported");<a name="line.90"></a>
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-<span class="sourceLineNo">093</span><a name="line.93"></a>
-<span class="sourceLineNo">094</span> protected abstract void setMax(long ts);<a name="line.94"></a>
-<span class="sourceLineNo">095</span> protected abstract void setMin(long ts);<a name="line.95"></a>
-<span class="sourceLineNo">096</span> protected abstract boolean compareAndSetMin(long expect, long update);<a name="line.96"></a>
-<span class="sourceLineNo">097</span> protected abstract boolean compareAndSetMax(long expect, long update);<a name="line.97"></a>
-<span class="sourceLineNo">098</span> /**<a name="line.98"></a>
-<span class="sourceLineNo">099</span> * Update the current TimestampRange to include the timestamp from <code>cell</code>.<a name="line.99"></a>
-<span class="sourceLineNo">100</span> * If the Key is of type DeleteColumn or DeleteFamily, it includes the<a name="line.100"></a>
-<span class="sourceLineNo">101</span> * entire time range from 0 to timestamp of the key.<a name="line.101"></a>
-<span class="sourceLineNo">102</span> * @param cell the Cell to include<a name="line.102"></a>
-<span class="sourceLineNo">103</span> */<a name="line.103"></a>
-<span class="sourceLineNo">104</span> public void includeTimestamp(final Cell cell) {<a name="line.104"></a>
-<span class="sourceLineNo">105</span> includeTimestamp(cell.getTimestamp());<a name="line.105"></a>
-<span class="sourceLineNo">106</span> if (PrivateCellUtil.isDeleteColumnOrFamily(cell)) {<a name="line.106"></a>
-<span class="sourceLineNo">107</span> includeTimestamp(0);<a name="line.107"></a>
-<span class="sourceLineNo">108</span> }<a name="line.108"></a>
-<span class="sourceLineNo">109</span> }<a name="line.109"></a>
-<span class="sourceLineNo">110</span><a name="line.110"></a>
-<span class="sourceLineNo">111</span> /**<a name="line.111"></a>
-<span class="sourceLineNo">112</span> * If required, update the current TimestampRange to include timestamp<a name="line.112"></a>
-<span class="sourceLineNo">113</span> * @param timestamp the timestamp value to include<a name="line.113"></a>
-<span class="sourceLineNo">114</span> */<a name="line.114"></a>
-<span class="sourceLineNo">115</span> @edu.umd.cs.findbugs.annotations.SuppressWarnings(value="MT_CORRECTNESS",<a name="line.115"></a>
-<span class="sourceLineNo">116</span> justification="Intentional")<a name="line.116"></a>
-<span class="sourceLineNo">117</span> void includeTimestamp(final long timestamp) {<a name="line.117"></a>
-<span class="sourceLineNo">118</span> long initialMinTimestamp = getMin();<a name="line.118"></a>
-<span class="sourceLineNo">119</span> if (timestamp < initialMinTimestamp) {<a name="line.119"></a>
-<span class="sourceLineNo">120</span> long curMinTimestamp = initialMinTimestamp;<a name="line.120"></a>
-<span class="sourceLineNo">121</span> while (timestamp < curMinTimestamp) {<a name="line.121"></a>
-<span class="sourceLineNo">122</span> if (!compareAndSetMin(curMinTimestamp, timestamp)) {<a name="line.122"></a>
-<span class="sourceLineNo">123</span> curMinTimestamp = getMin();<a name="line.123"></a>
-<span class="sourceLineNo">124</span> } else {<a name="line.124"></a>
-<span class="sourceLineNo">125</span> // successfully set minimumTimestamp, break.<a name="line.125"></a>
-<span class="sourceLineNo">126</span> break;<a name="line.126"></a>
-<span class="sourceLineNo">127</span> }<a name="line.127"></a>
-<span class="sourceLineNo">128</span> }<a name="line.128"></a>
-<span class="sourceLineNo">129</span><a name="line.129"></a>
-<span class="sourceLineNo">130</span> // When it reaches here, there are two possibilities:<a name="line.130"></a>
-<span class="sourceLineNo">131</span> // 1). timestamp >= curMinTimestamp, someone already sets the minimumTimestamp. In this case,<a name="line.131"></a>
-<span class="sourceLineNo">132</span> // it still needs to check if initialMinTimestamp == INITIAL_MIN_TIMESTAMP to see<a name="line.132"></a>
-<span class="sourceLineNo">133</span> // if it needs to update minimumTimestamp. Someone may already set both<a name="line.133"></a>
-<span class="sourceLineNo">134</span> // minimumTimestamp/minimumTimestamp to the same value(curMinTimestamp),<a name="line.134"></a>
-<span class="sourceLineNo">135</span> // need to check if maximumTimestamp needs to be updated.<a name="line.135"></a>
-<span class="sourceLineNo">136</span> // 2). timestamp < curMinTimestamp, it sets the minimumTimestamp successfully.<a name="line.136"></a>
-<span class="sourceLineNo">137</span> // In this case,it still needs to check if initialMinTimestamp == INITIAL_MIN_TIMESTAMP<a name="line.137"></a>
-<span class="sourceLineNo">138</span> // to see if it needs to set maximumTimestamp.<a name="line.138"></a>
-<span class="sourceLineNo">139</span> if (initialMinTimestamp != INITIAL_MIN_TIMESTAMP) {<a name="line.139"></a>
-<span class="sourceLineNo">140</span> // Someone already sets minimumTimestamp and timestamp is less than minimumTimestamp.<a name="line.140"></a>
-<span class="sourceLineNo">141</span> // In this case, no need to set maximumTimestamp as it will be set to at least<a name="line.141"></a>
-<span class="sourceLineNo">142</span> // initialMinTimestamp.<a name="line.142"></a>
-<span class="sourceLineNo">143</span> return;<a name="line.143"></a>
-<span class="sourceLineNo">144</span> }<a name="line.144"></a>
-<span class="sourceLineNo">145</span> }<a name="line.145"></a>
-<span class="sourceLineNo">146</span><a name="line.146"></a>
-<span class="sourceLineNo">147</span> long curMaxTimestamp = getMax();<a name="line.147"></a>
+<span class="sourceLineNo">022</span>import java.io.ByteArrayOutputStream;<a name="line.22"></a>
+<span class="sourceLineNo">023</span>import java.io.DataInputStream;<a name="line.23"></a>
+<span class="sourceLineNo">024</span>import java.io.DataOutputStream;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.io.IOException;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.util.concurrent.atomic.AtomicLong;<a name="line.26"></a>
+<span class="sourceLineNo">027</span><a name="line.27"></a>
+<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.Cell;<a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.CellUtil;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.PrivateCellUtil;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.io.TimeRange;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.yetus.audience.InterfaceAudience;<a name="line.32"></a>
+<span class="sourceLineNo">033</span><a name="line.33"></a>
+<span class="sourceLineNo">034</span>import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;<a name="line.34"></a>
+<span class="sourceLineNo">035</span>import org.apache.hbase.thirdparty.com.google.common.base.Preconditions;<a name="line.35"></a>
+<span class="sourceLineNo">036</span>import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil;<a name="line.36"></a>
+<span class="sourceLineNo">037</span>import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos;<a name="line.37"></a>
+<span class="sourceLineNo">038</span><a name="line.38"></a>
+<span class="sourceLineNo">039</span>/**<a name="line.39"></a>
+<span class="sourceLineNo">040</span> * Stores minimum and maximum timestamp values, it is [minimumTimestamp, maximumTimestamp] in<a name="line.40"></a>
+<span class="sourceLineNo">041</span> * interval notation.<a name="line.41"></a>
+<span class="sourceLineNo">042</span> * Use this class at write-time ONLY. Too much synchronization to use at read time<a name="line.42"></a>
+<span class="sourceLineNo">043</span> * Use {@link TimeRange} at read time instead of this. See toTimeRange() to make TimeRange to use.<a name="line.43"></a>
+<span class="sourceLineNo">044</span> * MemStores use this class to track minimum and maximum timestamps. The TimeRangeTracker made by<a name="line.44"></a>
+<span class="sourceLineNo">045</span> * the MemStore is passed to the StoreFile for it to write out as part a flush in the the file<a name="line.45"></a>
+<span class="sourceLineNo">046</span> * metadata. If no memstore involved -- i.e. a compaction -- then the StoreFile will calculate its<a name="line.46"></a>
+<span class="sourceLineNo">047</span> * own TimeRangeTracker as it appends. The StoreFile serialized TimeRangeTracker is used<a name="line.47"></a>
+<span class="sourceLineNo">048</span> * at read time via an instance of {@link TimeRange} to test if Cells fit the StoreFile TimeRange.<a name="line.48"></a>
+<span class="sourceLineNo">049</span> */<a name="line.49"></a>
+<span class="sourceLineNo">050</span>@InterfaceAudience.Private<a name="line.50"></a>
+<span class="sourceLineNo">051</span>public abstract class TimeRangeTracker {<a name="line.51"></a>
+<span class="sourceLineNo">052</span><a name="line.52"></a>
+<span class="sourceLineNo">053</span> public enum Type {<a name="line.53"></a>
+<span class="sourceLineNo">054</span> // thread-unsafe<a name="line.54"></a>
+<span class="sourceLineNo">055</span> NON_SYNC,<a name="line.55"></a>
+<span class="sourceLineNo">056</span> // thread-safe<a name="line.56"></a>
+<span class="sourceLineNo">057</span> SYNC<a name="line.57"></a>
+<span class="sourceLineNo">058</span> }<a name="line.58"></a>
+<span class="sourceLineNo">059</span><a name="line.59"></a>
+<span class="sourceLineNo">060</span> static final long INITIAL_MIN_TIMESTAMP = Long.MAX_VALUE;<a name="line.60"></a>
+<span class="sourceLineNo">061</span> static final long INITIAL_MAX_TIMESTAMP = -1L;<a name="line.61"></a>
+<span class="sourceLineNo">062</span><a name="line.62"></a>
+<span class="sourceLineNo">063</span> public static TimeRangeTracker create(Type type) {<a name="line.63"></a>
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+<span class="sourceLineNo">065</span> case NON_SYNC:<a name="line.65"></a>
+<span class="sourceLineNo">066</span> return new NonSyncTimeRangeTracker();<a name="line.66"></a>
+<span class="sourceLineNo">067</span> case SYNC:<a name="line.67"></a>
+<span class="sourceLineNo">068</span> return new SyncTimeRangeTracker();<a name="line.68"></a>
+<span class="sourceLineNo">069</span> default:<a name="line.69"></a>
+<span class="sourceLineNo">070</span> throw new UnsupportedOperationException("The type:" + type + " is unsupported");<a name="line.70"></a>
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+<span class="sourceLineNo">072</span> }<a name="line.72"></a>
+<span class="sourceLineNo">073</span><a name="line.73"></a>
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+<span class="sourceLineNo">079</span> return new SyncTimeRangeTracker(trt);<a name="line.79"></a>
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+<span class="sourceLineNo">084</span><a name="line.84"></a>
+<span class="sourceLineNo">085</span> public static TimeRangeTracker create(Type type, long minimumTimestamp, long maximumTimestamp) {<a name="line.85"></a>
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+<span class="sourceLineNo">088</span> return new NonSyncTimeRangeTracker(minimumTimestamp, maximumTimestamp);<a name="line.88"></a>
+<span class="sourceLineNo">089</span> case SYNC:<a name="line.89"></a>
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+<span class="sourceLineNo">100</span> /**<a name="line.100"></a>
+<span class="sourceLineNo">101</span> * Update the current TimestampRange to include the timestamp from <code>cell</code>.<a name="line.101"></a>
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+<span class="sourceLineNo">103</span> * entire time range from 0 to timestamp of the key.<a name="line.103"></a>
+<span class="sourceLineNo">104</span> * @param cell the Cell to include<a name="line.104"></a>
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+<span class="sourceLineNo">118</span> justification="Intentional")<a name="line.118"></a>
+<span class="sourceLineNo">119</span> void includeTimestamp(final long timestamp) {<a name="line.119"></a>
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+<span class="sourceLineNo">121</span> if (timestamp < initialMinTimestamp) {<a name="line.121"></a>
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+<span class="sourceLineNo">123</span> while (timestamp < curMinTimestamp) {<a name="line.123"></a>
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