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Posted to commits@hbase.apache.org by bu...@apache.org on 2016/07/14 19:46:25 UTC
[02/52] [partial] hbase-site git commit: Published site at
a55af38689fbe273e716ebbf6191e9515986dbf3.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/975096b1/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/store/ProcedureStoreTracker.BitSetNode.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/store/ProcedureStoreTracker.BitSetNode.html b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/store/ProcedureStoreTracker.BitSetNode.html
index 78b70fb..fd76c1c 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/store/ProcedureStoreTracker.BitSetNode.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/procedure2/store/ProcedureStoreTracker.BitSetNode.html
@@ -29,660 +29,669 @@
<span class="sourceLineNo">021</span>import java.io.IOException;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import java.io.InputStream;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import java.io.OutputStream;<a name="line.23"></a>
-<span class="sourceLineNo">024</span>import java.util.Iterator;<a name="line.24"></a>
-<span class="sourceLineNo">025</span>import java.util.Map;<a name="line.25"></a>
-<span class="sourceLineNo">026</span>import java.util.TreeMap;<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.classification.InterfaceAudience;<a name="line.28"></a>
-<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.classification.InterfaceStability;<a name="line.29"></a>
-<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.protobuf.generated.ProcedureProtos;<a name="line.30"></a>
-<span class="sourceLineNo">031</span><a name="line.31"></a>
-<span class="sourceLineNo">032</span>/**<a name="line.32"></a>
-<span class="sourceLineNo">033</span> * Keeps track of live procedures.<a name="line.33"></a>
-<span class="sourceLineNo">034</span> *<a name="line.34"></a>
-<span class="sourceLineNo">035</span> * It can be used by the ProcedureStore to identify which procedures are already<a name="line.35"></a>
-<span class="sourceLineNo">036</span> * deleted/completed to avoid the deserialization step on restart<a name="line.36"></a>
-<span class="sourceLineNo">037</span> */<a name="line.37"></a>
-<span class="sourceLineNo">038</span>@InterfaceAudience.Private<a name="line.38"></a>
-<span class="sourceLineNo">039</span>@InterfaceStability.Evolving<a name="line.39"></a>
-<span class="sourceLineNo">040</span>public class ProcedureStoreTracker {<a name="line.40"></a>
-<span class="sourceLineNo">041</span> // Key is procedure id corresponding to first bit of the bitmap.<a name="line.41"></a>
-<span class="sourceLineNo">042</span> private final TreeMap<Long, BitSetNode> map = new TreeMap<Long, BitSetNode>();<a name="line.42"></a>
-<span class="sourceLineNo">043</span><a name="line.43"></a>
-<span class="sourceLineNo">044</span> /**<a name="line.44"></a>
-<span class="sourceLineNo">045</span> * If true, do not remove bits corresponding to deleted procedures. Note that this can result<a name="line.45"></a>
-<span class="sourceLineNo">046</span> * in huge bitmaps overtime.<a name="line.46"></a>
-<span class="sourceLineNo">047</span> * Currently, it's set to true only when building tracker state from logs during recovery. During<a name="line.47"></a>
-<span class="sourceLineNo">048</span> * recovery, if we are sure that a procedure has been deleted, reading its old update entries<a name="line.48"></a>
-<span class="sourceLineNo">049</span> * can be skipped.<a name="line.49"></a>
-<span class="sourceLineNo">050</span> */<a name="line.50"></a>
-<span class="sourceLineNo">051</span> private boolean keepDeletes = false;<a name="line.51"></a>
-<span class="sourceLineNo">052</span> /**<a name="line.52"></a>
-<span class="sourceLineNo">053</span> * If true, it means tracker has incomplete information about the active/deleted procedures.<a name="line.53"></a>
-<span class="sourceLineNo">054</span> * It's set to true only when recovering from old logs. See {@link #isDeleted(long)} docs to<a name="line.54"></a>
-<span class="sourceLineNo">055</span> * understand it's real use.<a name="line.55"></a>
-<span class="sourceLineNo">056</span> */<a name="line.56"></a>
-<span class="sourceLineNo">057</span> private boolean partial = false;<a name="line.57"></a>
-<span class="sourceLineNo">058</span><a name="line.58"></a>
-<span class="sourceLineNo">059</span> private long minUpdatedProcId = Long.MAX_VALUE;<a name="line.59"></a>
-<span class="sourceLineNo">060</span> private long maxUpdatedProcId = Long.MIN_VALUE;<a name="line.60"></a>
-<span class="sourceLineNo">061</span><a name="line.61"></a>
-<span class="sourceLineNo">062</span> public enum DeleteState { YES, NO, MAYBE }<a name="line.62"></a>
-<span class="sourceLineNo">063</span><a name="line.63"></a>
-<span class="sourceLineNo">064</span> /**<a name="line.64"></a>
-<span class="sourceLineNo">065</span> * A bitmap which can grow/merge with other {@link BitSetNode} (if certain conditions are met).<a name="line.65"></a>
-<span class="sourceLineNo">066</span> * Boundaries of bitmap are aligned to multiples of {@link BitSetNode#BITS_PER_WORD}. So the<a name="line.66"></a>
-<span class="sourceLineNo">067</span> * range of a {@link BitSetNode} is from [x * K, y * K) where x and y are integers, y > x and K<a name="line.67"></a>
-<span class="sourceLineNo">068</span> * is BITS_PER_WORD.<a name="line.68"></a>
-<span class="sourceLineNo">069</span> */<a name="line.69"></a>
-<span class="sourceLineNo">070</span> public static class BitSetNode {<a name="line.70"></a>
-<span class="sourceLineNo">071</span> private final static long WORD_MASK = 0xffffffffffffffffL;<a name="line.71"></a>
-<span class="sourceLineNo">072</span> private final static int ADDRESS_BITS_PER_WORD = 6;<a name="line.72"></a>
-<span class="sourceLineNo">073</span> private final static int BITS_PER_WORD = 1 << ADDRESS_BITS_PER_WORD;<a name="line.73"></a>
-<span class="sourceLineNo">074</span> private final static int MAX_NODE_SIZE = 1 << ADDRESS_BITS_PER_WORD;<a name="line.74"></a>
-<span class="sourceLineNo">075</span><a name="line.75"></a>
-<span class="sourceLineNo">076</span> /**<a name="line.76"></a>
-<span class="sourceLineNo">077</span> * Mimics {@link ProcedureStoreTracker#partial}.<a name="line.77"></a>
-<span class="sourceLineNo">078</span> */<a name="line.78"></a>
-<span class="sourceLineNo">079</span> private final boolean partial;<a name="line.79"></a>
-<span class="sourceLineNo">080</span> /**<a name="line.80"></a>
-<span class="sourceLineNo">081</span> * Set of procedures which have been updated since last {@link #resetUpdates()}.<a name="line.81"></a>
-<span class="sourceLineNo">082</span> * Useful to track procedures which have been updated since last WAL write.<a name="line.82"></a>
-<span class="sourceLineNo">083</span> */<a name="line.83"></a>
-<span class="sourceLineNo">084</span> private long[] updated;<a name="line.84"></a>
-<span class="sourceLineNo">085</span> /**<a name="line.85"></a>
-<span class="sourceLineNo">086</span> * Keeps track of procedure ids which belong to this bitmap's range and have been deleted.<a name="line.86"></a>
-<span class="sourceLineNo">087</span> */<a name="line.87"></a>
-<span class="sourceLineNo">088</span> private long[] deleted;<a name="line.88"></a>
-<span class="sourceLineNo">089</span> /**<a name="line.89"></a>
-<span class="sourceLineNo">090</span> * Offset of bitmap i.e. procedure id corresponding to first bit.<a name="line.90"></a>
-<span class="sourceLineNo">091</span> */<a name="line.91"></a>
-<span class="sourceLineNo">092</span> private long start;<a name="line.92"></a>
-<span class="sourceLineNo">093</span><a name="line.93"></a>
-<span class="sourceLineNo">094</span> public void dump() {<a name="line.94"></a>
-<span class="sourceLineNo">095</span> System.out.printf("%06d:%06d min=%d max=%d%n", getStart(), getEnd(),<a name="line.95"></a>
-<span class="sourceLineNo">096</span> getActiveMinProcId(), getActiveMaxProcId());<a name="line.96"></a>
-<span class="sourceLineNo">097</span> System.out.println("Update:");<a name="line.97"></a>
-<span class="sourceLineNo">098</span> for (int i = 0; i < updated.length; ++i) {<a name="line.98"></a>
-<span class="sourceLineNo">099</span> for (int j = 0; j < BITS_PER_WORD; ++j) {<a name="line.99"></a>
-<span class="sourceLineNo">100</span> System.out.print((updated[i] & (1L << j)) != 0 ? "1" : "0");<a name="line.100"></a>
-<span class="sourceLineNo">101</span> }<a name="line.101"></a>
-<span class="sourceLineNo">102</span> System.out.println(" " + i);<a name="line.102"></a>
-<span class="sourceLineNo">103</span> }<a name="line.103"></a>
-<span class="sourceLineNo">104</span> System.out.println();<a name="line.104"></a>
-<span class="sourceLineNo">105</span> System.out.println("Delete:");<a name="line.105"></a>
-<span class="sourceLineNo">106</span> for (int i = 0; i < deleted.length; ++i) {<a name="line.106"></a>
-<span class="sourceLineNo">107</span> for (int j = 0; j < BITS_PER_WORD; ++j) {<a name="line.107"></a>
-<span class="sourceLineNo">108</span> System.out.print((deleted[i] & (1L << j)) != 0 ? "1" : "0");<a name="line.108"></a>
-<span class="sourceLineNo">109</span> }<a name="line.109"></a>
-<span class="sourceLineNo">110</span> System.out.println(" " + i);<a name="line.110"></a>
-<span class="sourceLineNo">111</span> }<a name="line.111"></a>
-<span class="sourceLineNo">112</span> System.out.println();<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>
-<span class="sourceLineNo">115</span> public BitSetNode(final long procId, final boolean partial) {<a name="line.115"></a>
-<span class="sourceLineNo">116</span> start = alignDown(procId);<a name="line.116"></a>
-<span class="sourceLineNo">117</span><a name="line.117"></a>
-<span class="sourceLineNo">118</span> int count = 1;<a name="line.118"></a>
-<span class="sourceLineNo">119</span> updated = new long[count];<a name="line.119"></a>
-<span class="sourceLineNo">120</span> deleted = new long[count];<a name="line.120"></a>
-<span class="sourceLineNo">121</span> for (int i = 0; i < count; ++i) {<a name="line.121"></a>
-<span class="sourceLineNo">122</span> updated[i] = 0;<a name="line.122"></a>
-<span class="sourceLineNo">123</span> deleted[i] = partial ? 0 : WORD_MASK;<a name="line.123"></a>
-<span class="sourceLineNo">124</span> }<a name="line.124"></a>
-<span class="sourceLineNo">125</span><a name="line.125"></a>
-<span class="sourceLineNo">126</span> this.partial = partial;<a name="line.126"></a>
-<span class="sourceLineNo">127</span> updateState(procId, false);<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> protected BitSetNode(final long start, final long[] updated, final long[] deleted) {<a name="line.130"></a>
-<span class="sourceLineNo">131</span> this.start = start;<a name="line.131"></a>
-<span class="sourceLineNo">132</span> this.updated = updated;<a name="line.132"></a>
-<span class="sourceLineNo">133</span> this.deleted = deleted;<a name="line.133"></a>
-<span class="sourceLineNo">134</span> this.partial = false;<a name="line.134"></a>
-<span class="sourceLineNo">135</span> }<a name="line.135"></a>
-<span class="sourceLineNo">136</span><a name="line.136"></a>
-<span class="sourceLineNo">137</span> public void update(final long procId) {<a name="line.137"></a>
-<span class="sourceLineNo">138</span> updateState(procId, false);<a name="line.138"></a>
-<span class="sourceLineNo">139</span> }<a name="line.139"></a>
-<span class="sourceLineNo">140</span><a name="line.140"></a>
-<span class="sourceLineNo">141</span> public void delete(final long procId) {<a name="line.141"></a>
-<span class="sourceLineNo">142</span> updateState(procId, true);<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> public Long getStart() {<a name="line.145"></a>
-<span class="sourceLineNo">146</span> return start;<a name="line.146"></a>
-<span class="sourceLineNo">147</span> }<a name="line.147"></a>
-<span class="sourceLineNo">148</span><a name="line.148"></a>
-<span class="sourceLineNo">149</span> public Long getEnd() {<a name="line.149"></a>
-<span class="sourceLineNo">150</span> return start + (updated.length << ADDRESS_BITS_PER_WORD) - 1;<a name="line.150"></a>
-<span class="sourceLineNo">151</span> }<a name="line.151"></a>
-<span class="sourceLineNo">152</span><a name="line.152"></a>
-<span class="sourceLineNo">153</span> public boolean contains(final long procId) {<a name="line.153"></a>
-<span class="sourceLineNo">154</span> return start <= procId && procId <= getEnd();<a name="line.154"></a>
-<span class="sourceLineNo">155</span> }<a name="line.155"></a>
-<span class="sourceLineNo">156</span><a name="line.156"></a>
-<span class="sourceLineNo">157</span> public DeleteState isDeleted(final long procId) {<a name="line.157"></a>
-<span class="sourceLineNo">158</span> int bitmapIndex = getBitmapIndex(procId);<a name="line.158"></a>
-<span class="sourceLineNo">159</span> int wordIndex = bitmapIndex >> ADDRESS_BITS_PER_WORD;<a name="line.159"></a>
-<span class="sourceLineNo">160</span> if (wordIndex >= deleted.length) {<a name="line.160"></a>
-<span class="sourceLineNo">161</span> return DeleteState.MAYBE;<a name="line.161"></a>
-<span class="sourceLineNo">162</span> }<a name="line.162"></a>
-<span class="sourceLineNo">163</span> return (deleted[wordIndex] & (1L << bitmapIndex)) != 0 ? DeleteState.YES : DeleteState.NO;<a name="line.163"></a>
-<span class="sourceLineNo">164</span> }<a name="line.164"></a>
-<span class="sourceLineNo">165</span><a name="line.165"></a>
-<span class="sourceLineNo">166</span> private boolean isUpdated(final long procId) {<a name="line.166"></a>
-<span class="sourceLineNo">167</span> int bitmapIndex = getBitmapIndex(procId);<a name="line.167"></a>
-<span class="sourceLineNo">168</span> int wordIndex = bitmapIndex >> ADDRESS_BITS_PER_WORD;<a name="line.168"></a>
-<span class="sourceLineNo">169</span> if (wordIndex >= updated.length) {<a name="line.169"></a>
-<span class="sourceLineNo">170</span> return false;<a name="line.170"></a>
-<span class="sourceLineNo">171</span> }<a name="line.171"></a>
-<span class="sourceLineNo">172</span> return (updated[wordIndex] & (1L << bitmapIndex)) != 0;<a name="line.172"></a>
-<span class="sourceLineNo">173</span> }<a name="line.173"></a>
-<span class="sourceLineNo">174</span><a name="line.174"></a>
-<span class="sourceLineNo">175</span> public boolean isUpdated() {<a name="line.175"></a>
-<span class="sourceLineNo">176</span> // TODO: cache the value<a name="line.176"></a>
-<span class="sourceLineNo">177</span> for (int i = 0; i < updated.length; ++i) {<a name="line.177"></a>
-<span class="sourceLineNo">178</span> if ((updated[i] | deleted[i]) != WORD_MASK) {<a name="line.178"></a>
-<span class="sourceLineNo">179</span> return false;<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> return true;<a name="line.182"></a>
-<span class="sourceLineNo">183</span> }<a name="line.183"></a>
-<span class="sourceLineNo">184</span><a name="line.184"></a>
-<span class="sourceLineNo">185</span> /**<a name="line.185"></a>
-<span class="sourceLineNo">186</span> * @return true, if there are no active procedures in this BitSetNode, else false.<a name="line.186"></a>
-<span class="sourceLineNo">187</span> */<a name="line.187"></a>
-<span class="sourceLineNo">188</span> public boolean isEmpty() {<a name="line.188"></a>
-<span class="sourceLineNo">189</span> // TODO: cache the value<a name="line.189"></a>
-<span class="sourceLineNo">190</span> for (int i = 0; i < deleted.length; ++i) {<a name="line.190"></a>
-<span class="sourceLineNo">191</span> if (deleted[i] != WORD_MASK) {<a name="line.191"></a>
-<span class="sourceLineNo">192</span> return false;<a name="line.192"></a>
-<span class="sourceLineNo">193</span> }<a name="line.193"></a>
-<span class="sourceLineNo">194</span> }<a name="line.194"></a>
-<span class="sourceLineNo">195</span> return true;<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> public void resetUpdates() {<a name="line.198"></a>
-<span class="sourceLineNo">199</span> for (int i = 0; i < updated.length; ++i) {<a name="line.199"></a>
-<span class="sourceLineNo">200</span> updated[i] = 0;<a name="line.200"></a>
-<span class="sourceLineNo">201</span> }<a name="line.201"></a>
-<span class="sourceLineNo">202</span> }<a name="line.202"></a>
-<span class="sourceLineNo">203</span><a name="line.203"></a>
-<span class="sourceLineNo">204</span> /**<a name="line.204"></a>
-<span class="sourceLineNo">205</span> * Clears the {@link #deleted} bitmaps.<a name="line.205"></a>
-<span class="sourceLineNo">206</span> */<a name="line.206"></a>
-<span class="sourceLineNo">207</span> public void undeleteAll() {<a name="line.207"></a>
-<span class="sourceLineNo">208</span> for (int i = 0; i < updated.length; ++i) {<a name="line.208"></a>
-<span class="sourceLineNo">209</span> deleted[i] = 0;<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><a name="line.212"></a>
-<span class="sourceLineNo">213</span> public void unsetPartialFlag() {<a name="line.213"></a>
-<span class="sourceLineNo">214</span> for (int i = 0; i < updated.length; ++i) {<a name="line.214"></a>
-<span class="sourceLineNo">215</span> for (int j = 0; j < BITS_PER_WORD; ++j) {<a name="line.215"></a>
-<span class="sourceLineNo">216</span> if ((updated[i] & (1L << j)) == 0) {<a name="line.216"></a>
-<span class="sourceLineNo">217</span> deleted[i] |= (1L << j);<a name="line.217"></a>
-<span class="sourceLineNo">218</span> }<a name="line.218"></a>
-<span class="sourceLineNo">219</span> }<a name="line.219"></a>
-<span class="sourceLineNo">220</span> }<a name="line.220"></a>
-<span class="sourceLineNo">221</span> }<a name="line.221"></a>
-<span class="sourceLineNo">222</span><a name="line.222"></a>
-<span class="sourceLineNo">223</span> // ========================================================================<a name="line.223"></a>
-<span class="sourceLineNo">224</span> // Convert to/from Protocol Buffer.<a name="line.224"></a>
-<span class="sourceLineNo">225</span> // ========================================================================<a name="line.225"></a>
-<span class="sourceLineNo">226</span><a name="line.226"></a>
-<span class="sourceLineNo">227</span> public ProcedureProtos.ProcedureStoreTracker.TrackerNode convert() {<a name="line.227"></a>
-<span class="sourceLineNo">228</span> ProcedureProtos.ProcedureStoreTracker.TrackerNode.Builder builder =<a name="line.228"></a>
-<span class="sourceLineNo">229</span> ProcedureProtos.ProcedureStoreTracker.TrackerNode.newBuilder();<a name="line.229"></a>
-<span class="sourceLineNo">230</span> builder.setStartId(start);<a name="line.230"></a>
-<span class="sourceLineNo">231</span> for (int i = 0; i < updated.length; ++i) {<a name="line.231"></a>
-<span class="sourceLineNo">232</span> builder.addUpdated(updated[i]);<a name="line.232"></a>
-<span class="sourceLineNo">233</span> builder.addDeleted(deleted[i]);<a name="line.233"></a>
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-<span class="sourceLineNo">235</span> return builder.build();<a name="line.235"></a>
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-<span class="sourceLineNo">237</span><a name="line.237"></a>
-<span class="sourceLineNo">238</span> public static BitSetNode convert(ProcedureProtos.ProcedureStoreTracker.TrackerNode data) {<a name="line.238"></a>
-<span class="sourceLineNo">239</span> long start = data.getStartId();<a name="line.239"></a>
-<span class="sourceLineNo">240</span> int size = data.getUpdatedCount();<a name="line.240"></a>
-<span class="sourceLineNo">241</span> long[] updated = new long[size];<a name="line.241"></a>
-<span class="sourceLineNo">242</span> long[] deleted = new long[size];<a name="line.242"></a>
-<span class="sourceLineNo">243</span> for (int i = 0; i < size; ++i) {<a name="line.243"></a>
-<span class="sourceLineNo">244</span> updated[i] = data.getUpdated(i);<a name="line.244"></a>
-<span class="sourceLineNo">245</span> deleted[i] = data.getDeleted(i);<a name="line.245"></a>
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-<span class="sourceLineNo">247</span> return new BitSetNode(start, updated, deleted);<a name="line.247"></a>
-<span class="sourceLineNo">248</span> }<a name="line.248"></a>
-<span class="sourceLineNo">249</span><a name="line.249"></a>
-<span class="sourceLineNo">250</span> // ========================================================================<a name="line.250"></a>
-<span class="sourceLineNo">251</span> // Grow/Merge Helpers<a name="line.251"></a>
-<span class="sourceLineNo">252</span> // ========================================================================<a name="line.252"></a>
-<span class="sourceLineNo">253</span> public boolean canGrow(final long procId) {<a name="line.253"></a>
-<span class="sourceLineNo">254</span> return Math.abs(procId - start) < MAX_NODE_SIZE;<a name="line.254"></a>
-<span class="sourceLineNo">255</span> }<a name="line.255"></a>
-<span class="sourceLineNo">256</span><a name="line.256"></a>
-<span class="sourceLineNo">257</span> public boolean canMerge(final BitSetNode rightNode) {<a name="line.257"></a>
-<span class="sourceLineNo">258</span> // Can just compare 'starts' since boundaries are aligned to multiples of BITS_PER_WORD.<a name="line.258"></a>
-<span class="sourceLineNo">259</span> assert start < rightNode.start;<a name="line.259"></a>
-<span class="sourceLineNo">260</span> return (rightNode.getEnd() - start) < MAX_NODE_SIZE;<a name="line.260"></a>
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+<span class="sourceLineNo">024</span>import java.util.Arrays;<a name="line.24"></a>
+<span class="sourceLineNo">025</span>import java.util.Iterator;<a name="line.25"></a>
+<span class="sourceLineNo">026</span>import java.util.Map;<a name="line.26"></a>
+<span class="sourceLineNo">027</span>import java.util.TreeMap;<a name="line.27"></a>
+<span class="sourceLineNo">028</span><a name="line.28"></a>
+<span class="sourceLineNo">029</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.29"></a>
+<span class="sourceLineNo">030</span>import org.apache.hadoop.hbase.classification.InterfaceStability;<a name="line.30"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.protobuf.generated.ProcedureProtos;<a name="line.31"></a>
+<span class="sourceLineNo">032</span><a name="line.32"></a>
+<span class="sourceLineNo">033</span>/**<a name="line.33"></a>
+<span class="sourceLineNo">034</span> * Keeps track of live procedures.<a name="line.34"></a>
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+<span class="sourceLineNo">036</span> * It can be used by the ProcedureStore to identify which procedures are already<a name="line.36"></a>
+<span class="sourceLineNo">037</span> * deleted/completed to avoid the deserialization step on restart<a name="line.37"></a>
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+<span class="sourceLineNo">039</span>@InterfaceAudience.Private<a name="line.39"></a>
+<span class="sourceLineNo">040</span>@InterfaceStability.Evolving<a name="line.40"></a>
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+<span class="sourceLineNo">043</span> private final TreeMap<Long, BitSetNode> map = new TreeMap<Long, BitSetNode>();<a name="line.43"></a>
+<span class="sourceLineNo">044</span><a name="line.44"></a>
+<span class="sourceLineNo">045</span> /**<a name="line.45"></a>
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+<span class="sourceLineNo">047</span> * in huge bitmaps overtime.<a name="line.47"></a>
+<span class="sourceLineNo">048</span> * Currently, it's set to true only when building tracker state from logs during recovery. During<a name="line.48"></a>
+<span class="sourceLineNo">049</span> * recovery, if we are sure that a procedure has been deleted, reading its old update entries<a name="line.49"></a>
+<span class="sourceLineNo">050</span> * can be skipped.<a name="line.50"></a>
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+<span class="sourceLineNo">053</span> /**<a name="line.53"></a>
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+<span class="sourceLineNo">055</span> * It's set to true only when recovering from old logs. See {@link #isDeleted(long)} docs to<a name="line.55"></a>
+<span class="sourceLineNo">056</span> * understand it's real use.<a name="line.56"></a>
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+<span class="sourceLineNo">059</span><a name="line.59"></a>
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+<span class="sourceLineNo">061</span> private long maxUpdatedProcId = Long.MIN_VALUE;<a name="line.61"></a>
+<span class="sourceLineNo">062</span><a name="line.62"></a>
+<span class="sourceLineNo">063</span> public enum DeleteState { YES, NO, MAYBE }<a name="line.63"></a>
+<span class="sourceLineNo">064</span><a name="line.64"></a>
+<span class="sourceLineNo">065</span> /**<a name="line.65"></a>
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+<span class="sourceLineNo">067</span> * Boundaries of bitmap are aligned to multiples of {@link BitSetNode#BITS_PER_WORD}. So the<a name="line.67"></a>
+<span class="sourceLineNo">068</span> * range of a {@link BitSetNode} is from [x * K, y * K) where x and y are integers, y > x and K<a name="line.68"></a>
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+<span class="sourceLineNo">070</span> */<a name="line.70"></a>
+<span class="sourceLineNo">071</span> public static class BitSetNode {<a name="line.71"></a>
+<span class="sourceLineNo">072</span> private final static long WORD_MASK = 0xffffffffffffffffL;<a name="line.72"></a>
+<span class="sourceLineNo">073</span> private final static int ADDRESS_BITS_PER_WORD = 6;<a name="line.73"></a>
+<span class="sourceLineNo">074</span> private final static int BITS_PER_WORD = 1 << ADDRESS_BITS_PER_WORD;<a name="line.74"></a>
+<span class="sourceLineNo">075</span> private final static int MAX_NODE_SIZE = 1 << ADDRESS_BITS_PER_WORD;<a name="line.75"></a>
+<span class="sourceLineNo">076</span><a name="line.76"></a>
+<span class="sourceLineNo">077</span> /**<a name="line.77"></a>
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+<span class="sourceLineNo">080</span> private final boolean partial;<a name="line.80"></a>
+<span class="sourceLineNo">081</span> /**<a name="line.81"></a>
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+<span class="sourceLineNo">083</span> * Useful to track procedures which have been updated since last WAL write.<a name="line.83"></a>
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+<span class="sourceLineNo">103</span> System.out.println(" " + i);<a name="line.103"></a>
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+<span class="sourceLineNo">111</span> System.out.println(" " + i);<a name="line.111"></a>
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+<span class="sourceLineNo">113</span> System.out.println();<a name="line.113"></a>
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+<span class="sourceLineNo">175</span><a name="line.175"></a>
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+<span class="sourceLineNo">212</span> }<a name="line.212"></a>
+<span class="sourceLineNo">213</span><a name="line.213"></a>
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+<span class="sourceLineNo">220</span> }<a name="line.220"></a>
+<span class="sourceLineNo">221</span> }<a name="line.221"></a>
+<span class="sourceLineNo">222</span> }<a name="line.222"></a>
+<span class="sourceLineNo">223</span><a name="line.223"></a>
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+<span class="sourceLineNo">225</span> // Convert to/from Protocol Buffer.<a name="line.225"></a>
+<span class="sourceLineNo">226</span> // ========================================================================<a name="line.226"></a>
+<span class="sourceLineNo">227</span><a name="line.227"></a>
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+<span class="sourceLineNo">231</span> builder.setStartId(start);<a name="line.231"></a>
+<span class="sourceLineNo">232</span> for (int i = 0; i < updated.length; ++i) {<a name="line.232"></a>
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+<span class="sourceLineNo">234</span> builder.addDeleted(deleted[i]);<a name="line.234"></a>
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+<span class="sourceLineNo">236</span> return builder.build();<a name="line.236"></a>
+<span class="sourceLineNo">237</span> }<a name="line.237"></a>
+<span class="sourceLineNo">238</span><a name="line.238"></a>
+<span class="sourceLineNo">239</span> public static BitSetNode convert(ProcedureProtos.ProcedureStoreTracker.TrackerNode data) {<a name="line.239"></a>
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+<span class="sourceLineNo">241</span> int size = data.getUpdatedCount();<a name="line.241"></a>
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+<span class="sourceLineNo">243</span> long[] deleted = new long[size];<a name="line.243"></a>
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+<span class="sourceLineNo">245</span> updated[i] = data.getUpdated(i);<a name="line.245"></a>
+<span class="sourceLineNo">246</span> deleted[i] = data.getDeleted(i);<a name="line.246"></a>
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+<span class="sourceLineNo">250</span><a name="line.250"></a>
+<span class="sourceLineNo">251</span> // ========================================================================<a name="line.251"></a>
+<span class="sourceLineNo">252</span> // Grow/Merge Helpers<a name="line.252"></a>
+<span class="sourceLineNo">253</span> // ========================================================================<a name="line.253"></a>
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+<span class="sourceLineNo">257</span><a name="line.257"></a>
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+<span class="sourceLineNo">313</span> System.arraycopy(rightNode.deleted, 0, newBitmap, offset, rightNode.deleted.length);<a name="line.313"></a>
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+<span class="sourceLineNo">315</span><a name="line.315"></a>
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+<span class="sourceLineNo">319</span> }<a name="line.319"></a>
+<span class="sourceLineNo">320</span> }<a name="line.320"></a>
+<span class="sourceLineNo">321</span><a name="line.321"></a>
+<span class="sourceLineNo">322</span> @Override<a name="line.322"></a>
+<span class="sourceLineNo">323</span> public String toString() {<a name="line.323"></a>
+<span class="sourceLineNo">324</span> return "BitSetNode(" + getStart() + "-" + getEnd() + ")";<a name="line.324"></a>
+<span class="sourceLineNo">325</span> }<a name="line.325"></a>
+<span class="sourceLineNo">326</span><a name="line.326"></a>
+<span class="sourceLineNo">327</span> // ========================================================================<a name="line.327"></a>
+<span class="sourceLineNo">328</span> // Min/Max Helpers<a name="line.328"></a>
+<span class="sourceLineNo">329</span> // ========================================================================<a name="line.329"></a>
+<span class="sourceLineNo">330</span> public long getActiveMinProcId() {<a name="line.330"></a>
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