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Posted to commits@hbase.apache.org by mi...@apache.org on 2016/02/24 18:45:16 UTC
[17/30] hbase-site git commit: Published site at
28cd48b673ca743d193874b2951bc995699e8e89.
http://git-wip-us.apache.org/repos/asf/hbase-site/blob/89b638a4/devapidocs/src-html/org/apache/hadoop/hbase/ipc/SimpleRpcScheduler.CallPriorityComparator.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/ipc/SimpleRpcScheduler.CallPriorityComparator.html b/devapidocs/src-html/org/apache/hadoop/hbase/ipc/SimpleRpcScheduler.CallPriorityComparator.html
index 856be7b..6beef12 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/ipc/SimpleRpcScheduler.CallPriorityComparator.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/ipc/SimpleRpcScheduler.CallPriorityComparator.html
@@ -36,203 +36,219 @@
<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.HConstants;<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.util.BoundedPriorityBlockingQueue;<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> * A scheduler that maintains isolated handler pools for general,<a name="line.34"></a>
-<span class="sourceLineNo">035</span> * high-priority, and replication requests.<a name="line.35"></a>
-<span class="sourceLineNo">036</span> */<a name="line.36"></a>
-<span class="sourceLineNo">037</span>@InterfaceAudience.LimitedPrivate({HBaseInterfaceAudience.COPROC, HBaseInterfaceAudience.PHOENIX})<a name="line.37"></a>
-<span class="sourceLineNo">038</span>@InterfaceStability.Evolving<a name="line.38"></a>
-<span class="sourceLineNo">039</span>public class SimpleRpcScheduler extends RpcScheduler {<a name="line.39"></a>
-<span class="sourceLineNo">040</span> private static final Log LOG = LogFactory.getLog(SimpleRpcScheduler.class);<a name="line.40"></a>
-<span class="sourceLineNo">041</span><a name="line.41"></a>
-<span class="sourceLineNo">042</span> public static final String CALL_QUEUE_READ_SHARE_CONF_KEY =<a name="line.42"></a>
-<span class="sourceLineNo">043</span> "hbase.ipc.server.callqueue.read.ratio";<a name="line.43"></a>
-<span class="sourceLineNo">044</span> public static final String CALL_QUEUE_SCAN_SHARE_CONF_KEY =<a name="line.44"></a>
-<span class="sourceLineNo">045</span> "hbase.ipc.server.callqueue.scan.ratio";<a name="line.45"></a>
-<span class="sourceLineNo">046</span> public static final String CALL_QUEUE_HANDLER_FACTOR_CONF_KEY =<a name="line.46"></a>
-<span class="sourceLineNo">047</span> "hbase.ipc.server.callqueue.handler.factor";<a name="line.47"></a>
-<span class="sourceLineNo">048</span><a name="line.48"></a>
-<span class="sourceLineNo">049</span> /** If set to 'deadline', uses a priority queue and deprioritize long-running scans */<a name="line.49"></a>
-<span class="sourceLineNo">050</span> public static final String CALL_QUEUE_TYPE_CONF_KEY = "hbase.ipc.server.callqueue.type";<a name="line.50"></a>
-<span class="sourceLineNo">051</span> public static final String CALL_QUEUE_TYPE_DEADLINE_CONF_VALUE = "deadline";<a name="line.51"></a>
-<span class="sourceLineNo">052</span> public static final String CALL_QUEUE_TYPE_FIFO_CONF_VALUE = "fifo";<a name="line.52"></a>
-<span class="sourceLineNo">053</span><a name="line.53"></a>
-<span class="sourceLineNo">054</span> /** max delay in msec used to bound the deprioritized requests */<a name="line.54"></a>
-<span class="sourceLineNo">055</span> public static final String QUEUE_MAX_CALL_DELAY_CONF_KEY<a name="line.55"></a>
-<span class="sourceLineNo">056</span> = "hbase.ipc.server.queue.max.call.delay";<a name="line.56"></a>
-<span class="sourceLineNo">057</span><a name="line.57"></a>
-<span class="sourceLineNo">058</span> /**<a name="line.58"></a>
-<span class="sourceLineNo">059</span> * Comparator used by the "normal callQueue" if DEADLINE_CALL_QUEUE_CONF_KEY is set to true.<a name="line.59"></a>
-<span class="sourceLineNo">060</span> * It uses the calculated "deadline" e.g. to deprioritize long-running job<a name="line.60"></a>
-<span class="sourceLineNo">061</span> *<a name="line.61"></a>
-<span class="sourceLineNo">062</span> * If multiple requests have the same deadline BoundedPriorityBlockingQueue will order them in<a name="line.62"></a>
-<span class="sourceLineNo">063</span> * FIFO (first-in-first-out) manner.<a name="line.63"></a>
-<span class="sourceLineNo">064</span> */<a name="line.64"></a>
-<span class="sourceLineNo">065</span> private static class CallPriorityComparator implements Comparator<CallRunner> {<a name="line.65"></a>
-<span class="sourceLineNo">066</span> private final static int DEFAULT_MAX_CALL_DELAY = 5000;<a name="line.66"></a>
-<span class="sourceLineNo">067</span><a name="line.67"></a>
-<span class="sourceLineNo">068</span> private final PriorityFunction priority;<a name="line.68"></a>
-<span class="sourceLineNo">069</span> private final int maxDelay;<a name="line.69"></a>
-<span class="sourceLineNo">070</span><a name="line.70"></a>
-<span class="sourceLineNo">071</span> public CallPriorityComparator(final Configuration conf, final PriorityFunction priority) {<a name="line.71"></a>
-<span class="sourceLineNo">072</span> this.priority = priority;<a name="line.72"></a>
-<span class="sourceLineNo">073</span> this.maxDelay = conf.getInt(QUEUE_MAX_CALL_DELAY_CONF_KEY, DEFAULT_MAX_CALL_DELAY);<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> @Override<a name="line.76"></a>
-<span class="sourceLineNo">077</span> public int compare(CallRunner a, CallRunner b) {<a name="line.77"></a>
-<span class="sourceLineNo">078</span> RpcServer.Call callA = a.getCall();<a name="line.78"></a>
-<span class="sourceLineNo">079</span> RpcServer.Call callB = b.getCall();<a name="line.79"></a>
-<span class="sourceLineNo">080</span> long deadlineA = priority.getDeadline(callA.getHeader(), callA.param);<a name="line.80"></a>
-<span class="sourceLineNo">081</span> long deadlineB = priority.getDeadline(callB.getHeader(), callB.param);<a name="line.81"></a>
-<span class="sourceLineNo">082</span> deadlineA = callA.timestamp + Math.min(deadlineA, maxDelay);<a name="line.82"></a>
-<span class="sourceLineNo">083</span> deadlineB = callB.timestamp + Math.min(deadlineB, maxDelay);<a name="line.83"></a>
-<span class="sourceLineNo">084</span> return (int)(deadlineA - deadlineB);<a name="line.84"></a>
-<span class="sourceLineNo">085</span> }<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> private int port;<a name="line.88"></a>
-<span class="sourceLineNo">089</span> private final PriorityFunction priority;<a name="line.89"></a>
-<span class="sourceLineNo">090</span> private final RpcExecutor callExecutor;<a name="line.90"></a>
-<span class="sourceLineNo">091</span> private final RpcExecutor priorityExecutor;<a name="line.91"></a>
-<span class="sourceLineNo">092</span> private final RpcExecutor replicationExecutor;<a name="line.92"></a>
-<span class="sourceLineNo">093</span><a name="line.93"></a>
-<span class="sourceLineNo">094</span> /** What level a high priority call is at. */<a name="line.94"></a>
-<span class="sourceLineNo">095</span> private final int highPriorityLevel;<a name="line.95"></a>
-<span class="sourceLineNo">096</span><a name="line.96"></a>
-<span class="sourceLineNo">097</span> private Abortable abortable = null;<a name="line.97"></a>
-<span class="sourceLineNo">098</span><a name="line.98"></a>
-<span class="sourceLineNo">099</span> /**<a name="line.99"></a>
-<span class="sourceLineNo">100</span> * @param conf<a name="line.100"></a>
-<span class="sourceLineNo">101</span> * @param handlerCount the number of handler threads that will be used to process calls<a name="line.101"></a>
-<span class="sourceLineNo">102</span> * @param priorityHandlerCount How many threads for priority handling.<a name="line.102"></a>
-<span class="sourceLineNo">103</span> * @param replicationHandlerCount How many threads for replication handling.<a name="line.103"></a>
-<span class="sourceLineNo">104</span> * @param highPriorityLevel<a name="line.104"></a>
-<span class="sourceLineNo">105</span> * @param priority Function to extract request priority.<a name="line.105"></a>
-<span class="sourceLineNo">106</span> */<a name="line.106"></a>
-<span class="sourceLineNo">107</span> public SimpleRpcScheduler(<a name="line.107"></a>
-<span class="sourceLineNo">108</span> Configuration conf,<a name="line.108"></a>
-<span class="sourceLineNo">109</span> int handlerCount,<a name="line.109"></a>
-<span class="sourceLineNo">110</span> int priorityHandlerCount,<a name="line.110"></a>
-<span class="sourceLineNo">111</span> int replicationHandlerCount,<a name="line.111"></a>
-<span class="sourceLineNo">112</span> PriorityFunction priority,<a name="line.112"></a>
-<span class="sourceLineNo">113</span> Abortable server,<a name="line.113"></a>
-<span class="sourceLineNo">114</span> int highPriorityLevel) {<a name="line.114"></a>
-<span class="sourceLineNo">115</span> int maxQueueLength = conf.getInt("hbase.ipc.server.max.callqueue.length",<a name="line.115"></a>
-<span class="sourceLineNo">116</span> handlerCount * RpcServer.DEFAULT_MAX_CALLQUEUE_LENGTH_PER_HANDLER);<a name="line.116"></a>
-<span class="sourceLineNo">117</span> this.priority = priority;<a name="line.117"></a>
-<span class="sourceLineNo">118</span> this.highPriorityLevel = highPriorityLevel;<a name="line.118"></a>
-<span class="sourceLineNo">119</span> this.abortable = server;<a name="line.119"></a>
-<span class="sourceLineNo">120</span><a name="line.120"></a>
-<span class="sourceLineNo">121</span> String callQueueType = conf.get(CALL_QUEUE_TYPE_CONF_KEY, CALL_QUEUE_TYPE_DEADLINE_CONF_VALUE);<a name="line.121"></a>
-<span class="sourceLineNo">122</span> float callqReadShare = conf.getFloat(CALL_QUEUE_READ_SHARE_CONF_KEY, 0);<a name="line.122"></a>
-<span class="sourceLineNo">123</span> float callqScanShare = conf.getFloat(CALL_QUEUE_SCAN_SHARE_CONF_KEY, 0);<a name="line.123"></a>
-<span class="sourceLineNo">124</span><a name="line.124"></a>
-<span class="sourceLineNo">125</span> float callQueuesHandlersFactor = conf.getFloat(CALL_QUEUE_HANDLER_FACTOR_CONF_KEY, 0);<a name="line.125"></a>
-<span class="sourceLineNo">126</span> int numCallQueues = Math.max(1, (int)Math.round(handlerCount * callQueuesHandlersFactor));<a name="line.126"></a>
-<span class="sourceLineNo">127</span><a name="line.127"></a>
-<span class="sourceLineNo">128</span> LOG.info("Using " + callQueueType + " as user call queue, count=" + numCallQueues);<a name="line.128"></a>
-<span class="sourceLineNo">129</span><a name="line.129"></a>
-<span class="sourceLineNo">130</span> if (numCallQueues > 1 && callqReadShare > 0) {<a name="line.130"></a>
-<span class="sourceLineNo">131</span> // multiple read/write queues<a name="line.131"></a>
-<span class="sourceLineNo">132</span> if (callQueueType.equals(CALL_QUEUE_TYPE_DEADLINE_CONF_VALUE)) {<a name="line.132"></a>
-<span class="sourceLineNo">133</span> CallPriorityComparator callPriority = new CallPriorityComparator(conf, this.priority);<a name="line.133"></a>
-<span class="sourceLineNo">134</span> callExecutor = new RWQueueRpcExecutor("RW.default", handlerCount, numCallQueues,<a name="line.134"></a>
-<span class="sourceLineNo">135</span> callqReadShare, callqScanShare, maxQueueLength, conf, abortable,<a name="line.135"></a>
-<span class="sourceLineNo">136</span> BoundedPriorityBlockingQueue.class, callPriority);<a name="line.136"></a>
-<span class="sourceLineNo">137</span> } else {<a name="line.137"></a>
-<span class="sourceLineNo">138</span> callExecutor = new RWQueueRpcExecutor("RW.default", handlerCount, numCallQueues,<a name="line.138"></a>
-<span class="sourceLineNo">139</span> callqReadShare, callqScanShare, maxQueueLength, conf, abortable);<a name="line.139"></a>
-<span class="sourceLineNo">140</span> }<a name="line.140"></a>
-<span class="sourceLineNo">141</span> } else {<a name="line.141"></a>
-<span class="sourceLineNo">142</span> // multiple queues<a name="line.142"></a>
-<span class="sourceLineNo">143</span> if (callQueueType.equals(CALL_QUEUE_TYPE_DEADLINE_CONF_VALUE)) {<a name="line.143"></a>
-<span class="sourceLineNo">144</span> CallPriorityComparator callPriority = new CallPriorityComparator(conf, this.priority);<a name="line.144"></a>
-<span class="sourceLineNo">145</span> callExecutor = new BalancedQueueRpcExecutor("B.default", handlerCount, numCallQueues,<a name="line.145"></a>
-<span class="sourceLineNo">146</span> conf, abortable, BoundedPriorityBlockingQueue.class, maxQueueLength, callPriority);<a name="line.146"></a>
-<span class="sourceLineNo">147</span> } else {<a name="line.147"></a>
-<span class="sourceLineNo">148</span> callExecutor = new BalancedQueueRpcExecutor("B.default", handlerCount,<a name="line.148"></a>
-<span class="sourceLineNo">149</span> numCallQueues, maxQueueLength, conf, abortable);<a name="line.149"></a>
-<span class="sourceLineNo">150</span> }<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> // Create 2 queues to help priorityExecutor be more scalable.<a name="line.153"></a>
-<span class="sourceLineNo">154</span> this.priorityExecutor = priorityHandlerCount > 0 ?<a name="line.154"></a>
-<span class="sourceLineNo">155</span> new BalancedQueueRpcExecutor("Priority", priorityHandlerCount, 2, maxQueueLength) : null;<a name="line.155"></a>
-<span class="sourceLineNo">156</span><a name="line.156"></a>
-<span class="sourceLineNo">157</span> this.replicationExecutor =<a name="line.157"></a>
-<span class="sourceLineNo">158</span> replicationHandlerCount > 0 ? new BalancedQueueRpcExecutor("Replication",<a name="line.158"></a>
-<span class="sourceLineNo">159</span> replicationHandlerCount, 1, maxQueueLength, conf, abortable) : null;<a name="line.159"></a>
-<span class="sourceLineNo">160</span> }<a name="line.160"></a>
-<span class="sourceLineNo">161</span><a name="line.161"></a>
-<span class="sourceLineNo">162</span> public SimpleRpcScheduler(<a name="line.162"></a>
-<span class="sourceLineNo">163</span> Configuration conf,<a name="line.163"></a>
-<span class="sourceLineNo">164</span> int handlerCount,<a name="line.164"></a>
-<span class="sourceLineNo">165</span> int priorityHandlerCount,<a name="line.165"></a>
-<span class="sourceLineNo">166</span> int replicationHandlerCount,<a name="line.166"></a>
-<span class="sourceLineNo">167</span> PriorityFunction priority,<a name="line.167"></a>
-<span class="sourceLineNo">168</span> int highPriorityLevel) {<a name="line.168"></a>
-<span class="sourceLineNo">169</span> this(conf, handlerCount, priorityHandlerCount, replicationHandlerCount, priority,<a name="line.169"></a>
-<span class="sourceLineNo">170</span> null, highPriorityLevel);<a name="line.170"></a>
-<span class="sourceLineNo">171</span> }<a name="line.171"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.conf.ConfigurationObserver;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.util.BoundedPriorityBlockingQueue;<a name="line.32"></a>
+<span class="sourceLineNo">033</span><a name="line.33"></a>
+<span class="sourceLineNo">034</span>/**<a name="line.34"></a>
+<span class="sourceLineNo">035</span> * A scheduler that maintains isolated handler pools for general,<a name="line.35"></a>
+<span class="sourceLineNo">036</span> * high-priority, and replication requests.<a name="line.36"></a>
+<span class="sourceLineNo">037</span> */<a name="line.37"></a>
+<span class="sourceLineNo">038</span>@InterfaceAudience.LimitedPrivate({HBaseInterfaceAudience.COPROC, HBaseInterfaceAudience.PHOENIX})<a name="line.38"></a>
+<span class="sourceLineNo">039</span>@InterfaceStability.Evolving<a name="line.39"></a>
+<span class="sourceLineNo">040</span>public class SimpleRpcScheduler extends RpcScheduler implements ConfigurationObserver {<a name="line.40"></a>
+<span class="sourceLineNo">041</span> private static final Log LOG = LogFactory.getLog(SimpleRpcScheduler.class);<a name="line.41"></a>
+<span class="sourceLineNo">042</span><a name="line.42"></a>
+<span class="sourceLineNo">043</span> public static final String CALL_QUEUE_READ_SHARE_CONF_KEY =<a name="line.43"></a>
+<span class="sourceLineNo">044</span> "hbase.ipc.server.callqueue.read.ratio";<a name="line.44"></a>
+<span class="sourceLineNo">045</span> public static final String CALL_QUEUE_SCAN_SHARE_CONF_KEY =<a name="line.45"></a>
+<span class="sourceLineNo">046</span> "hbase.ipc.server.callqueue.scan.ratio";<a name="line.46"></a>
+<span class="sourceLineNo">047</span> public static final String CALL_QUEUE_HANDLER_FACTOR_CONF_KEY =<a name="line.47"></a>
+<span class="sourceLineNo">048</span> "hbase.ipc.server.callqueue.handler.factor";<a name="line.48"></a>
+<span class="sourceLineNo">049</span><a name="line.49"></a>
+<span class="sourceLineNo">050</span> /** If set to 'deadline', uses a priority queue and deprioritize long-running scans */<a name="line.50"></a>
+<span class="sourceLineNo">051</span> public static final String CALL_QUEUE_TYPE_CONF_KEY = "hbase.ipc.server.callqueue.type";<a name="line.51"></a>
+<span class="sourceLineNo">052</span> public static final String CALL_QUEUE_TYPE_DEADLINE_CONF_VALUE = "deadline";<a name="line.52"></a>
+<span class="sourceLineNo">053</span> public static final String CALL_QUEUE_TYPE_FIFO_CONF_VALUE = "fifo";<a name="line.53"></a>
+<span class="sourceLineNo">054</span><a name="line.54"></a>
+<span class="sourceLineNo">055</span> /** max delay in msec used to bound the deprioritized requests */<a name="line.55"></a>
+<span class="sourceLineNo">056</span> public static final String QUEUE_MAX_CALL_DELAY_CONF_KEY<a name="line.56"></a>
+<span class="sourceLineNo">057</span> = "hbase.ipc.server.queue.max.call.delay";<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> * Resize call queues;<a name="line.60"></a>
+<span class="sourceLineNo">061</span> * @param conf new configuration<a name="line.61"></a>
+<span class="sourceLineNo">062</span> */<a name="line.62"></a>
+<span class="sourceLineNo">063</span> @Override<a name="line.63"></a>
+<span class="sourceLineNo">064</span> public void onConfigurationChange(Configuration conf) {<a name="line.64"></a>
+<span class="sourceLineNo">065</span> callExecutor.resizeQueues(conf);<a name="line.65"></a>
+<span class="sourceLineNo">066</span> if (priorityExecutor != null) {<a name="line.66"></a>
+<span class="sourceLineNo">067</span> priorityExecutor.resizeQueues(conf);<a name="line.67"></a>
+<span class="sourceLineNo">068</span> }<a name="line.68"></a>
+<span class="sourceLineNo">069</span> if (replicationExecutor != null) {<a name="line.69"></a>
+<span class="sourceLineNo">070</span> replicationExecutor.resizeQueues(conf);<a name="line.70"></a>
+<span class="sourceLineNo">071</span> }<a name="line.71"></a>
+<span class="sourceLineNo">072</span> }<a name="line.72"></a>
+<span class="sourceLineNo">073</span><a name="line.73"></a>
+<span class="sourceLineNo">074</span> /**<a name="line.74"></a>
+<span class="sourceLineNo">075</span> * Comparator used by the "normal callQueue" if DEADLINE_CALL_QUEUE_CONF_KEY is set to true.<a name="line.75"></a>
+<span class="sourceLineNo">076</span> * It uses the calculated "deadline" e.g. to deprioritize long-running job<a name="line.76"></a>
+<span class="sourceLineNo">077</span> *<a name="line.77"></a>
+<span class="sourceLineNo">078</span> * If multiple requests have the same deadline BoundedPriorityBlockingQueue will order them in<a name="line.78"></a>
+<span class="sourceLineNo">079</span> * FIFO (first-in-first-out) manner.<a name="line.79"></a>
+<span class="sourceLineNo">080</span> */<a name="line.80"></a>
+<span class="sourceLineNo">081</span> private static class CallPriorityComparator implements Comparator<CallRunner> {<a name="line.81"></a>
+<span class="sourceLineNo">082</span> private final static int DEFAULT_MAX_CALL_DELAY = 5000;<a name="line.82"></a>
+<span class="sourceLineNo">083</span><a name="line.83"></a>
+<span class="sourceLineNo">084</span> private final PriorityFunction priority;<a name="line.84"></a>
+<span class="sourceLineNo">085</span> private final int maxDelay;<a name="line.85"></a>
+<span class="sourceLineNo">086</span><a name="line.86"></a>
+<span class="sourceLineNo">087</span> public CallPriorityComparator(final Configuration conf, final PriorityFunction priority) {<a name="line.87"></a>
+<span class="sourceLineNo">088</span> this.priority = priority;<a name="line.88"></a>
+<span class="sourceLineNo">089</span> this.maxDelay = conf.getInt(QUEUE_MAX_CALL_DELAY_CONF_KEY, DEFAULT_MAX_CALL_DELAY);<a name="line.89"></a>
+<span class="sourceLineNo">090</span> }<a name="line.90"></a>
+<span class="sourceLineNo">091</span><a name="line.91"></a>
+<span class="sourceLineNo">092</span> @Override<a name="line.92"></a>
+<span class="sourceLineNo">093</span> public int compare(CallRunner a, CallRunner b) {<a name="line.93"></a>
+<span class="sourceLineNo">094</span> RpcServer.Call callA = a.getCall();<a name="line.94"></a>
+<span class="sourceLineNo">095</span> RpcServer.Call callB = b.getCall();<a name="line.95"></a>
+<span class="sourceLineNo">096</span> long deadlineA = priority.getDeadline(callA.getHeader(), callA.param);<a name="line.96"></a>
+<span class="sourceLineNo">097</span> long deadlineB = priority.getDeadline(callB.getHeader(), callB.param);<a name="line.97"></a>
+<span class="sourceLineNo">098</span> deadlineA = callA.timestamp + Math.min(deadlineA, maxDelay);<a name="line.98"></a>
+<span class="sourceLineNo">099</span> deadlineB = callB.timestamp + Math.min(deadlineB, maxDelay);<a name="line.99"></a>
+<span class="sourceLineNo">100</span> return (int)(deadlineA - deadlineB);<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>
+<span class="sourceLineNo">103</span><a name="line.103"></a>
+<span class="sourceLineNo">104</span> private int port;<a name="line.104"></a>
+<span class="sourceLineNo">105</span> private final PriorityFunction priority;<a name="line.105"></a>
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+<span class="sourceLineNo">169</span> // Create 2 queues to help priorityExecutor be more scalable.<a name="line.169"></a>
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+<span class="sourceLineNo">171</span> new BalancedQueueRpcExecutor("Priority", priorityHandlerCount, 2, maxQueueLength) : null;<a name="line.171"></a>
<span class="sourceLineNo">172</span><a name="line.172"></a>
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-<span class="sourceLineNo">175</span> this.port = context.getListenerAddress().getPort();<a name="line.175"></a>
+<span class="sourceLineNo">173</span> this.replicationExecutor =<a name="line.173"></a>
+<span class="sourceLineNo">174</span> replicationHandlerCount > 0 ? new BalancedQueueRpcExecutor("Replication",<a name="line.174"></a>
+<span class="sourceLineNo">175</span> replicationHandlerCount, 1, maxQueueLength, conf, abortable) : null;<a name="line.175"></a>
<span class="sourceLineNo">176</span> }<a name="line.176"></a>
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-<span class="sourceLineNo">217</span> return replicationExecutor == null ? 0 : replicationExecutor.getQueueLength();<a name="line.217"></a>
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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/89b638a4/devapidocs/src-html/org/apache/hadoop/hbase/ipc/SimpleRpcScheduler.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/ipc/SimpleRpcScheduler.html b/devapidocs/src-html/org/apache/hadoop/hbase/ipc/SimpleRpcScheduler.html
index 856be7b..6beef12 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/ipc/SimpleRpcScheduler.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/ipc/SimpleRpcScheduler.html
@@ -36,203 +36,219 @@
<span class="sourceLineNo">028</span>import org.apache.hadoop.hbase.HConstants;<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.util.BoundedPriorityBlockingQueue;<a name="line.31"></a>
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-<span class="sourceLineNo">033</span>/**<a name="line.33"></a>
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-<span class="sourceLineNo">035</span> * high-priority, and replication requests.<a name="line.35"></a>
-<span class="sourceLineNo">036</span> */<a name="line.36"></a>
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-<span class="sourceLineNo">038</span>@InterfaceStability.Evolving<a name="line.38"></a>
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-<span class="sourceLineNo">048</span><a name="line.48"></a>
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-<span class="sourceLineNo">128</span> LOG.info("Using " + callQueueType + " as user call queue, count=" + numCallQueues);<a name="line.128"></a>
-<span class="sourceLineNo">129</span><a name="line.129"></a>
-<span class="sourceLineNo">130</span> if (numCallQueues > 1 && callqReadShare > 0) {<a name="line.130"></a>
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-<span class="sourceLineNo">141</span> } else {<a name="line.141"></a>
-<span class="sourceLineNo">142</span> // multiple queues<a name="line.142"></a>
-<span class="sourceLineNo">143</span> if (callQueueType.equals(CALL_QUEUE_TYPE_DEADLINE_CONF_VALUE)) {<a name="line.143"></a>
-<span class="sourceLineNo">144</span> CallPriorityComparator callPriority = new CallPriorityComparator(conf, this.priority);<a name="line.144"></a>
-<span class="sourceLineNo">145</span> callExecutor = new BalancedQueueRpcExecutor("B.default", handlerCount, numCallQueues,<a name="line.145"></a>
-<span class="sourceLineNo">146</span> conf, abortable, BoundedPriorityBlockingQueue.class, maxQueueLength, callPriority);<a name="line.146"></a>
-<span class="sourceLineNo">147</span> } else {<a name="line.147"></a>
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-<span class="sourceLineNo">149</span> numCallQueues, maxQueueLength, conf, abortable);<a name="line.149"></a>
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-<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> // Create 2 queues to help priorityExecutor be more scalable.<a name="line.153"></a>
-<span class="sourceLineNo">154</span> this.priorityExecutor = priorityHandlerCount > 0 ?<a name="line.154"></a>
-<span class="sourceLineNo">155</span> new BalancedQueueRpcExecutor("Priority", priorityHandlerCount, 2, maxQueueLength) : null;<a name="line.155"></a>
-<span class="sourceLineNo">156</span><a name="line.156"></a>
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-<span class="sourceLineNo">171</span> }<a name="line.171"></a>
+<span class="sourceLineNo">031</span>import org.apache.hadoop.hbase.conf.ConfigurationObserver;<a name="line.31"></a>
+<span class="sourceLineNo">032</span>import org.apache.hadoop.hbase.util.BoundedPriorityBlockingQueue;<a name="line.32"></a>
+<span class="sourceLineNo">033</span><a name="line.33"></a>
+<span class="sourceLineNo">034</span>/**<a name="line.34"></a>
+<span class="sourceLineNo">035</span> * A scheduler that maintains isolated handler pools for general,<a name="line.35"></a>
+<span class="sourceLineNo">036</span> * high-priority, and replication requests.<a name="line.36"></a>
+<span class="sourceLineNo">037</span> */<a name="line.37"></a>
+<span class="sourceLineNo">038</span>@InterfaceAudience.LimitedPrivate({HBaseInterfaceAudience.COPROC, HBaseInterfaceAudience.PHOENIX})<a name="line.38"></a>
+<span class="sourceLineNo">039</span>@InterfaceStability.Evolving<a name="line.39"></a>
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+<span class="sourceLineNo">042</span><a name="line.42"></a>
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+<span class="sourceLineNo">044</span> "hbase.ipc.server.callqueue.read.ratio";<a name="line.44"></a>
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+<span class="sourceLineNo">046</span> "hbase.ipc.server.callqueue.scan.ratio";<a name="line.46"></a>
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+<span class="sourceLineNo">049</span><a name="line.49"></a>
+<span class="sourceLineNo">050</span> /** If set to 'deadline', uses a priority queue and deprioritize long-running scans */<a name="line.50"></a>
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+<span class="sourceLineNo">054</span><a name="line.54"></a>
+<span class="sourceLineNo">055</span> /** max delay in msec used to bound the deprioritized requests */<a name="line.55"></a>
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+<span class="sourceLineNo">057</span> = "hbase.ipc.server.queue.max.call.delay";<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>
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+<span class="sourceLineNo">063</span> @Override<a name="line.63"></a>
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+<span class="sourceLineNo">066</span> if (priorityExecutor != null) {<a name="line.66"></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>
+<span class="sourceLineNo">074</span> /**<a name="line.74"></a>
+<span class="sourceLineNo">075</span> * Comparator used by the "normal callQueue" if DEADLINE_CALL_QUEUE_CONF_KEY is set to true.<a name="line.75"></a>
+<span class="sourceLineNo">076</span> * It uses the calculated "deadline" e.g. to deprioritize long-running job<a name="line.76"></a>
+<span class="sourceLineNo">077</span> *<a name="line.77"></a>
+<span class="sourceLineNo">078</span> * If multiple requests have the same deadline BoundedPriorityBlockingQueue will order them in<a name="line.78"></a>
+<span class="sourceLineNo">079</span> * FIFO (first-in-first-out) manner.<a name="line.79"></a>
+<span class="sourceLineNo">080</span> */<a name="line.80"></a>
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+<span class="sourceLineNo">086</span><a name="line.86"></a>
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+<span class="sourceLineNo">099</span> deadlineB = callB.timestamp + Math.min(deadlineB, maxDelay);<a name="line.99"></a>
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+<span class="sourceLineNo">102</span> }<a name="line.102"></a>
+<span class="sourceLineNo">103</span><a name="line.103"></a>
+<span class="sourceLineNo">104</span> private int port;<a name="line.104"></a>
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+<span class="sourceLineNo">106</span> private final RpcExecutor callExecutor;<a name="line.106"></a>
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+<span class="sourceLineNo">109</span><a name="line.109"></a>
+<span class="sourceLineNo">110</span> /** What level a high priority call is at. */<a name="line.110"></a>
+<span class="sourceLineNo">111</span> private final int highPriorityLevel;<a name="line.111"></a>
+<span class="sourceLineNo">112</span><a name="line.112"></a>
+<span class="sourceLineNo">113</span> private Abortable abortable = null;<a name="line.113"></a>
+<span class="sourceLineNo">114</span><a name="line.114"></a>
+<span class="sourceLineNo">115</span> /**<a name="line.115"></a>
+<span class="sourceLineNo">116</span> * @param conf<a name="line.116"></a>
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+<span class="sourceLineNo">118</span> * @param priorityHandlerCount How many threads for priority handling.<a name="line.118"></a>
+<span class="sourceLineNo">119</span> * @param replicationHandlerCount How many threads for replication handling.<a name="line.119"></a>
+<span class="sourceLineNo">120</span> * @param highPriorityLevel<a name="line.120"></a>
+<span class="sourceLineNo">121</span> * @param priority Function to extract request priority.<a name="line.121"></a>
+<span class="sourceLineNo">122</span> */<a name="line.122"></a>
+<span class="sourceLineNo">123</span> public SimpleRpcScheduler(<a name="line.123"></a>
+<span class="sourceLineNo">124</span> Configuration conf,<a name="line.124"></a>
+<span class="sourceLineNo">125</span> int handlerCount,<a name="line.125"></a>
+<span class="sourceLineNo">126</span> int priorityHandlerCount,<a name="line.126"></a>
+<span class="sourceLineNo">127</span> int replicationHandlerCount,<a name="line.127"></a>
+<span class="sourceLineNo">128</span> PriorityFunction priority,<a name="line.128"></a>
+<span class="sourceLineNo">129</span> Abortable server,<a name="line.129"></a>
+<span class="sourceLineNo">130</span> int highPriorityLevel) {<a name="line.130"></a>
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+<span class="sourceLineNo">133</span> this.priority = priority;<a name="line.133"></a>
+<span class="sourceLineNo">134</span> this.highPriorityLevel = highPriorityLevel;<a name="line.134"></a>
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+<span class="sourceLineNo">136</span><a name="line.136"></a>
+<span class="sourceLineNo">137</span> String callQueueType = conf.get(CALL_QUEUE_TYPE_CONF_KEY, CALL_QUEUE_TYPE_DEADLINE_CONF_VALUE);<a name="line.137"></a>
+<span class="sourceLineNo">138</span> float callqReadShare = conf.getFloat(CALL_QUEUE_READ_SHARE_CONF_KEY, 0);<a name="line.138"></a>
+<span class="sourceLineNo">139</span> float callqScanShare = conf.getFloat(CALL_QUEUE_SCAN_SHARE_CONF_KEY, 0);<a name="line.139"></a>
+<span class="sourceLineNo">140</span><a name="line.140"></a>
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+<span class="sourceLineNo">145</span><a name="line.145"></a>
+<span class="sourceLineNo">146</span> if (numCallQueues > 1 && callqReadShare > 0) {<a name="line.146"></a>
+<span class="sourceLineNo">147</span> // multiple read/write queues<a name="line.147"></a>
+<span class="sourceLineNo">148</span> if (callQueueType.equals(CALL_QUEUE_TYPE_DEADLINE_CONF_VALUE)) {<a name="line.148"></a>
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+<span class="sourceLineNo">150</span> callExecutor = new RWQueueRpcExecutor("RW.default", handlerCount, numCallQueues,<a name="line.150"></a>
+<span class="sourceLineNo">151</span> callqReadShare, callqScanShare, maxQueueLength, conf, abortable,<a name="line.151"></a>
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+<span class="sourceLineNo">153</span> } else {<a name="line.153"></a>
+<span class="sourceLineNo">154</span> callExecutor = new RWQueueRpcExecutor("RW.default", handlerCount, numCallQueues,<a name="line.154"></a>
+<span class="sourceLineNo">155</span> callqReadShare, callqScanShare, maxQueueLength, conf, abortable);<a name="line.155"></a>
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+<span class="sourceLineNo">157</span> } else {<a name="line.157"></a>
+<span class="sourceLineNo">158</span> // multiple queues<a name="line.158"></a>
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http://git-wip-us.apache.org/repos/asf/hbase-site/blob/89b638a4/devapidocs/src-html/org/apache/hadoop/hbase/master/TableStateManager.html
----------------------------------------------------------------------
diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/master/TableStateManager.html b/devapidocs/src-html/org/apache/hadoop/hbase/master/TableStateManager.html
index 13d7619..53306c7 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/master/TableStateManager.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/master/TableStateManager.html
@@ -139,7 +139,7 @@
<span class="sourceLineNo">131</span> TableState.State tableState = getTableState(tableName);<a name="line.131"></a>
<span class="sourceLineNo">132</span> return TableState.isInStates(tableState, states);<a name="line.132"></a>
<span class="sourceLineNo">133</span> } catch (IOException e) {<a name="line.133"></a>
-<span class="sourceLineNo">134</span> LOG.error("Unable to get table " + tableName + " state, probably table not exists");<a name="line.134"></a>
+<span class="sourceLineNo">134</span> LOG.error("Unable to get table " + tableName + " state", e);<a name="line.134"></a>
<span class="sourceLineNo">135</span> return false;<a name="line.135"></a>
<span class="sourceLineNo">136</span> }<a name="line.136"></a>
<span class="sourceLineNo">137</span> }<a name="line.137"></a>