http://git-wip-us.apache.org/repos/asf/hbase-site/blob/2211f347/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncProcess.ReplicaResultState.html
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diff --git 
a/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncProcess.ReplicaResultState.html
 
b/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncProcess.ReplicaResultState.html
index d813e71..1eb85f1 100644
--- 
a/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncProcess.ReplicaResultState.html
+++ 
b/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncProcess.ReplicaResultState.html
@@ -63,1786 +63,1816 @@
 <span class="sourceLineNo">055</span>import 
org.apache.hadoop.hbase.client.coprocessor.Batch;<a name="line.55"></a>
 <span class="sourceLineNo">056</span>import 
org.apache.hadoop.hbase.exceptions.ClientExceptionsUtil;<a name="line.56"></a>
 <span class="sourceLineNo">057</span>import 
org.apache.hadoop.hbase.ipc.RpcControllerFactory;<a name="line.57"></a>
-<span class="sourceLineNo">058</span>import 
org.apache.hadoop.hbase.util.Bytes;<a name="line.58"></a>
-<span class="sourceLineNo">059</span>import 
org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.59"></a>
-<span class="sourceLineNo">060</span>import org.apache.htrace.Trace;<a 
name="line.60"></a>
-<span class="sourceLineNo">061</span><a name="line.61"></a>
-<span class="sourceLineNo">062</span>import 
com.google.common.annotations.VisibleForTesting;<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> * This class  allows a continuous flow 
of requests. It's written to be compatible with a<a name="line.65"></a>
-<span class="sourceLineNo">066</span> * synchronous caller such as HTable.<a 
name="line.66"></a>
-<span class="sourceLineNo">067</span> * &lt;p&gt;<a name="line.67"></a>
-<span class="sourceLineNo">068</span> * The caller sends a buffer of 
operation, by calling submit. This class extract from this list<a 
name="line.68"></a>
-<span class="sourceLineNo">069</span> * the operations it can send, i.e. the 
operations that are on region that are not considered<a name="line.69"></a>
-<span class="sourceLineNo">070</span> * as busy. The process is asynchronous, 
i.e. it returns immediately when if has finished to<a name="line.70"></a>
-<span class="sourceLineNo">071</span> * iterate on the list. If, and only if, 
the maximum number of current task is reached, the call<a name="line.71"></a>
-<span class="sourceLineNo">072</span> * to submit will block. Alternatively, 
the caller can call submitAll, in which case all the<a name="line.72"></a>
-<span class="sourceLineNo">073</span> * operations will be sent. Each call to 
submit returns a future-like object that can be used<a name="line.73"></a>
-<span class="sourceLineNo">074</span> * to track operation progress.<a 
name="line.74"></a>
-<span class="sourceLineNo">075</span> * &lt;/p&gt;<a name="line.75"></a>
-<span class="sourceLineNo">076</span> * &lt;p&gt;<a name="line.76"></a>
-<span class="sourceLineNo">077</span> * The class manages internally the 
retries.<a name="line.77"></a>
-<span class="sourceLineNo">078</span> * &lt;/p&gt;<a name="line.78"></a>
-<span class="sourceLineNo">079</span> * &lt;p&gt;<a name="line.79"></a>
-<span class="sourceLineNo">080</span> * The class can be constructed in 
regular mode, or "global error" mode. In global error mode,<a 
name="line.80"></a>
-<span class="sourceLineNo">081</span> * AP tracks errors across all calls 
(each "future" also has global view of all errors). That<a name="line.81"></a>
-<span class="sourceLineNo">082</span> * mode is necessary for backward compat 
with HTable behavior, where multiple submissions are<a name="line.82"></a>
-<span class="sourceLineNo">083</span> * made and the errors can propagate 
using any put/flush call, from previous calls.<a name="line.83"></a>
-<span class="sourceLineNo">084</span> * In "regular" mode, the errors are 
tracked inside the Future object that is returned.<a name="line.84"></a>
-<span class="sourceLineNo">085</span> * The results are always tracked inside 
the Future object and can be retrieved when the call<a name="line.85"></a>
-<span class="sourceLineNo">086</span> * has finished. Partial results can also 
be retrieved if some part of multi-request failed.<a name="line.86"></a>
-<span class="sourceLineNo">087</span> * &lt;/p&gt;<a name="line.87"></a>
-<span class="sourceLineNo">088</span> * &lt;p&gt;<a name="line.88"></a>
-<span class="sourceLineNo">089</span> * This class is thread safe in regular 
mode; in global error code, submitting operations and<a name="line.89"></a>
-<span class="sourceLineNo">090</span> * retrieving errors from different 
threads may be not thread safe.<a name="line.90"></a>
-<span class="sourceLineNo">091</span> * Internally, the class is thread safe 
enough to manage simultaneously new submission and results<a name="line.91"></a>
-<span class="sourceLineNo">092</span> * arising from older operations.<a 
name="line.92"></a>
-<span class="sourceLineNo">093</span> * &lt;/p&gt;<a name="line.93"></a>
-<span class="sourceLineNo">094</span> * &lt;p&gt;<a name="line.94"></a>
-<span class="sourceLineNo">095</span> * Internally, this class works with 
{@link Row}, this mean it could be theoretically used for<a name="line.95"></a>
-<span class="sourceLineNo">096</span> * gets as well.<a name="line.96"></a>
-<span class="sourceLineNo">097</span> * &lt;/p&gt;<a name="line.97"></a>
-<span class="sourceLineNo">098</span> */<a name="line.98"></a>
-<span class="sourceLineNo">099</span>@InterfaceAudience.Private<a 
name="line.99"></a>
-<span class="sourceLineNo">100</span>class AsyncProcess {<a 
name="line.100"></a>
-<span class="sourceLineNo">101</span>  private static final Log LOG = 
LogFactory.getLog(AsyncProcess.class);<a name="line.101"></a>
-<span class="sourceLineNo">102</span>  protected static final AtomicLong 
COUNTER = new AtomicLong();<a name="line.102"></a>
-<span class="sourceLineNo">103</span><a name="line.103"></a>
-<span class="sourceLineNo">104</span>  public static final String 
PRIMARY_CALL_TIMEOUT_KEY = "hbase.client.primaryCallTimeout.multiget";<a 
name="line.104"></a>
-<span class="sourceLineNo">105</span><a name="line.105"></a>
-<span class="sourceLineNo">106</span>  /**<a name="line.106"></a>
-<span class="sourceLineNo">107</span>   * Configure the number of failures 
after which the client will start logging. A few failures<a name="line.107"></a>
-<span class="sourceLineNo">108</span>   * is fine: region moved, then is not 
opened, then is overloaded. We try to have an acceptable<a name="line.108"></a>
-<span class="sourceLineNo">109</span>   * heuristic for the number of errors 
we don't log. 9 was chosen because we wait for 1s at<a name="line.109"></a>
-<span class="sourceLineNo">110</span>   * this stage.<a name="line.110"></a>
-<span class="sourceLineNo">111</span>   */<a name="line.111"></a>
-<span class="sourceLineNo">112</span>  public static final String 
START_LOG_ERRORS_AFTER_COUNT_KEY =<a name="line.112"></a>
-<span class="sourceLineNo">113</span>      
"hbase.client.start.log.errors.counter";<a name="line.113"></a>
-<span class="sourceLineNo">114</span>  public static final int 
DEFAULT_START_LOG_ERRORS_AFTER_COUNT = 9;<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>   * The context used to wait for results 
from one submit call.<a name="line.117"></a>
-<span class="sourceLineNo">118</span>   * 1) If AsyncProcess is set to track 
errors globally, and not per call (for HTable puts),<a name="line.118"></a>
-<span class="sourceLineNo">119</span>   *    then errors and failed operations 
in this object will reflect global errors.<a name="line.119"></a>
-<span class="sourceLineNo">120</span>   * 2) If submit call is made with 
needResults false, results will not be saved.<a name="line.120"></a>
-<span class="sourceLineNo">121</span>   *  */<a name="line.121"></a>
-<span class="sourceLineNo">122</span>  public static interface 
AsyncRequestFuture {<a name="line.122"></a>
-<span class="sourceLineNo">123</span>    public boolean hasError();<a 
name="line.123"></a>
-<span class="sourceLineNo">124</span>    public 
RetriesExhaustedWithDetailsException getErrors();<a name="line.124"></a>
-<span class="sourceLineNo">125</span>    public List&lt;? extends Row&gt; 
getFailedOperations();<a name="line.125"></a>
-<span class="sourceLineNo">126</span>    public Object[] getResults() throws 
InterruptedIOException;<a name="line.126"></a>
-<span class="sourceLineNo">127</span>    /** Wait until all tasks are 
executed, successfully or not. */<a name="line.127"></a>
-<span class="sourceLineNo">128</span>    public void waitUntilDone() throws 
InterruptedIOException;<a name="line.128"></a>
-<span class="sourceLineNo">129</span>  }<a name="line.129"></a>
-<span class="sourceLineNo">130</span><a name="line.130"></a>
-<span class="sourceLineNo">131</span>  /**<a name="line.131"></a>
-<span class="sourceLineNo">132</span>   * Return value from a submit that 
didn't contain any requests.<a name="line.132"></a>
-<span class="sourceLineNo">133</span>   */<a name="line.133"></a>
-<span class="sourceLineNo">134</span>  private static final AsyncRequestFuture 
NO_REQS_RESULT = new AsyncRequestFuture() {<a name="line.134"></a>
-<span class="sourceLineNo">135</span>    final Object[] result = new 
Object[0];<a name="line.135"></a>
-<span class="sourceLineNo">136</span><a name="line.136"></a>
-<span class="sourceLineNo">137</span>    @Override<a name="line.137"></a>
-<span class="sourceLineNo">138</span>    public boolean hasError() {<a 
name="line.138"></a>
-<span class="sourceLineNo">139</span>      return false;<a name="line.139"></a>
-<span class="sourceLineNo">140</span>    }<a name="line.140"></a>
-<span class="sourceLineNo">141</span><a name="line.141"></a>
-<span class="sourceLineNo">142</span>    @Override<a name="line.142"></a>
-<span class="sourceLineNo">143</span>    public 
RetriesExhaustedWithDetailsException getErrors() {<a name="line.143"></a>
-<span class="sourceLineNo">144</span>      return null;<a name="line.144"></a>
-<span class="sourceLineNo">145</span>    }<a name="line.145"></a>
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-<span class="sourceLineNo">147</span>    @Override<a name="line.147"></a>
-<span class="sourceLineNo">148</span>    public List&lt;? extends Row&gt; 
getFailedOperations() {<a name="line.148"></a>
-<span class="sourceLineNo">149</span>      return null;<a name="line.149"></a>
-<span class="sourceLineNo">150</span>    }<a name="line.150"></a>
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-<span class="sourceLineNo">152</span>    @Override<a name="line.152"></a>
-<span class="sourceLineNo">153</span>    public Object[] getResults() {<a 
name="line.153"></a>
-<span class="sourceLineNo">154</span>      return result;<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>    @Override<a name="line.157"></a>
-<span class="sourceLineNo">158</span>    public void waitUntilDone() throws 
InterruptedIOException {<a name="line.158"></a>
-<span class="sourceLineNo">159</span>    }<a name="line.159"></a>
-<span class="sourceLineNo">160</span>  };<a name="line.160"></a>
-<span class="sourceLineNo">161</span><a name="line.161"></a>
-<span class="sourceLineNo">162</span>  /** Sync point for calls to multiple 
replicas for the same user request (Get).<a name="line.162"></a>
-<span class="sourceLineNo">163</span>   * Created and put in the results array 
(we assume replica calls require results) when<a name="line.163"></a>
-<span class="sourceLineNo">164</span>   * the replica calls are launched. See 
results for details of this process.<a name="line.164"></a>
-<span class="sourceLineNo">165</span>   * POJO, all fields are public. To 
modify them, the object itself is locked. */<a name="line.165"></a>
-<span class="sourceLineNo">166</span>  private static class ReplicaResultState 
{<a name="line.166"></a>
-<span class="sourceLineNo">167</span>    public ReplicaResultState(int 
callCount) {<a name="line.167"></a>
-<span class="sourceLineNo">168</span>      this.callCount = callCount;<a 
name="line.168"></a>
-<span class="sourceLineNo">169</span>    }<a name="line.169"></a>
-<span class="sourceLineNo">170</span><a name="line.170"></a>
-<span class="sourceLineNo">171</span>    /** Number of calls outstanding, or 0 
if a call succeeded (even with others outstanding). */<a name="line.171"></a>
-<span class="sourceLineNo">172</span>    int callCount;<a name="line.172"></a>
-<span class="sourceLineNo">173</span>    /** Errors for which it is not 
decided whether we will report them to user. If one of the<a 
name="line.173"></a>
-<span class="sourceLineNo">174</span>     * calls succeeds, we will discard 
the errors that may have happened in the other calls. */<a name="line.174"></a>
-<span class="sourceLineNo">175</span>    BatchErrors replicaErrors = null;<a 
name="line.175"></a>
-<span class="sourceLineNo">176</span><a name="line.176"></a>
-<span class="sourceLineNo">177</span>    @Override<a name="line.177"></a>
-<span class="sourceLineNo">178</span>    public String toString() {<a 
name="line.178"></a>
-<span class="sourceLineNo">179</span>      return "[call count " + callCount + 
"; errors " + replicaErrors + "]";<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><a name="line.182"></a>
+<span class="sourceLineNo">058</span>import 
org.apache.hadoop.hbase.protobuf.generated.ClientProtos;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import 
org.apache.hadoop.hbase.util.Bytes;<a name="line.59"></a>
+<span class="sourceLineNo">060</span>import 
org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.60"></a>
+<span class="sourceLineNo">061</span>import org.apache.htrace.Trace;<a 
name="line.61"></a>
+<span class="sourceLineNo">062</span><a name="line.62"></a>
+<span class="sourceLineNo">063</span>import 
com.google.common.annotations.VisibleForTesting;<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>
+<span class="sourceLineNo">066</span> * This class  allows a continuous flow 
of requests. It's written to be compatible with a<a name="line.66"></a>
+<span class="sourceLineNo">067</span> * synchronous caller such as HTable.<a 
name="line.67"></a>
+<span class="sourceLineNo">068</span> * &lt;p&gt;<a name="line.68"></a>
+<span class="sourceLineNo">069</span> * The caller sends a buffer of 
operation, by calling submit. This class extract from this list<a 
name="line.69"></a>
+<span class="sourceLineNo">070</span> * the operations it can send, i.e. the 
operations that are on region that are not considered<a name="line.70"></a>
+<span class="sourceLineNo">071</span> * as busy. The process is asynchronous, 
i.e. it returns immediately when if has finished to<a name="line.71"></a>
+<span class="sourceLineNo">072</span> * iterate on the list. If, and only if, 
the maximum number of current task is reached, the call<a name="line.72"></a>
+<span class="sourceLineNo">073</span> * to submit will block. Alternatively, 
the caller can call submitAll, in which case all the<a name="line.73"></a>
+<span class="sourceLineNo">074</span> * operations will be sent. Each call to 
submit returns a future-like object that can be used<a name="line.74"></a>
+<span class="sourceLineNo">075</span> * to track operation progress.<a 
name="line.75"></a>
+<span class="sourceLineNo">076</span> * &lt;/p&gt;<a name="line.76"></a>
+<span class="sourceLineNo">077</span> * &lt;p&gt;<a name="line.77"></a>
+<span class="sourceLineNo">078</span> * The class manages internally the 
retries.<a name="line.78"></a>
+<span class="sourceLineNo">079</span> * &lt;/p&gt;<a name="line.79"></a>
+<span class="sourceLineNo">080</span> * &lt;p&gt;<a name="line.80"></a>
+<span class="sourceLineNo">081</span> * The class can be constructed in 
regular mode, or "global error" mode. In global error mode,<a 
name="line.81"></a>
+<span class="sourceLineNo">082</span> * AP tracks errors across all calls 
(each "future" also has global view of all errors). That<a name="line.82"></a>
+<span class="sourceLineNo">083</span> * mode is necessary for backward compat 
with HTable behavior, where multiple submissions are<a name="line.83"></a>
+<span class="sourceLineNo">084</span> * made and the errors can propagate 
using any put/flush call, from previous calls.<a name="line.84"></a>
+<span class="sourceLineNo">085</span> * In "regular" mode, the errors are 
tracked inside the Future object that is returned.<a name="line.85"></a>
+<span class="sourceLineNo">086</span> * The results are always tracked inside 
the Future object and can be retrieved when the call<a name="line.86"></a>
+<span class="sourceLineNo">087</span> * has finished. Partial results can also 
be retrieved if some part of multi-request failed.<a name="line.87"></a>
+<span class="sourceLineNo">088</span> * &lt;/p&gt;<a name="line.88"></a>
+<span class="sourceLineNo">089</span> * &lt;p&gt;<a name="line.89"></a>
+<span class="sourceLineNo">090</span> * This class is thread safe in regular 
mode; in global error code, submitting operations and<a name="line.90"></a>
+<span class="sourceLineNo">091</span> * retrieving errors from different 
threads may be not thread safe.<a name="line.91"></a>
+<span class="sourceLineNo">092</span> * Internally, the class is thread safe 
enough to manage simultaneously new submission and results<a name="line.92"></a>
+<span class="sourceLineNo">093</span> * arising from older operations.<a 
name="line.93"></a>
+<span class="sourceLineNo">094</span> * &lt;/p&gt;<a name="line.94"></a>
+<span class="sourceLineNo">095</span> * &lt;p&gt;<a name="line.95"></a>
+<span class="sourceLineNo">096</span> * Internally, this class works with 
{@link Row}, this mean it could be theoretically used for<a name="line.96"></a>
+<span class="sourceLineNo">097</span> * gets as well.<a name="line.97"></a>
+<span class="sourceLineNo">098</span> * &lt;/p&gt;<a name="line.98"></a>
+<span class="sourceLineNo">099</span> */<a name="line.99"></a>
+<span class="sourceLineNo">100</span>@InterfaceAudience.Private<a 
name="line.100"></a>
+<span class="sourceLineNo">101</span>class AsyncProcess {<a 
name="line.101"></a>
+<span class="sourceLineNo">102</span>  private static final Log LOG = 
LogFactory.getLog(AsyncProcess.class);<a name="line.102"></a>
+<span class="sourceLineNo">103</span>  protected static final AtomicLong 
COUNTER = new AtomicLong();<a name="line.103"></a>
+<span class="sourceLineNo">104</span><a name="line.104"></a>
+<span class="sourceLineNo">105</span>  public static final String 
PRIMARY_CALL_TIMEOUT_KEY = "hbase.client.primaryCallTimeout.multiget";<a 
name="line.105"></a>
+<span class="sourceLineNo">106</span><a name="line.106"></a>
+<span class="sourceLineNo">107</span>  /**<a name="line.107"></a>
+<span class="sourceLineNo">108</span>   * Configure the number of failures 
after which the client will start logging. A few failures<a name="line.108"></a>
+<span class="sourceLineNo">109</span>   * is fine: region moved, then is not 
opened, then is overloaded. We try to have an acceptable<a name="line.109"></a>
+<span class="sourceLineNo">110</span>   * heuristic for the number of errors 
we don't log. 9 was chosen because we wait for 1s at<a name="line.110"></a>
+<span class="sourceLineNo">111</span>   * this stage.<a name="line.111"></a>
+<span class="sourceLineNo">112</span>   */<a name="line.112"></a>
+<span class="sourceLineNo">113</span>  public static final String 
START_LOG_ERRORS_AFTER_COUNT_KEY =<a name="line.113"></a>
+<span class="sourceLineNo">114</span>      
"hbase.client.start.log.errors.counter";<a name="line.114"></a>
+<span class="sourceLineNo">115</span>  public static final int 
DEFAULT_START_LOG_ERRORS_AFTER_COUNT = 9;<a name="line.115"></a>
+<span class="sourceLineNo">116</span><a name="line.116"></a>
+<span class="sourceLineNo">117</span>  /**<a name="line.117"></a>
+<span class="sourceLineNo">118</span>   * The context used to wait for results 
from one submit call.<a name="line.118"></a>
+<span class="sourceLineNo">119</span>   * 1) If AsyncProcess is set to track 
errors globally, and not per call (for HTable puts),<a name="line.119"></a>
+<span class="sourceLineNo">120</span>   *    then errors and failed operations 
in this object will reflect global errors.<a name="line.120"></a>
+<span class="sourceLineNo">121</span>   * 2) If submit call is made with 
needResults false, results will not be saved.<a name="line.121"></a>
+<span class="sourceLineNo">122</span>   *  */<a name="line.122"></a>
+<span class="sourceLineNo">123</span>  public static interface 
AsyncRequestFuture {<a name="line.123"></a>
+<span class="sourceLineNo">124</span>    public boolean hasError();<a 
name="line.124"></a>
+<span class="sourceLineNo">125</span>    public 
RetriesExhaustedWithDetailsException getErrors();<a name="line.125"></a>
+<span class="sourceLineNo">126</span>    public List&lt;? extends Row&gt; 
getFailedOperations();<a name="line.126"></a>
+<span class="sourceLineNo">127</span>    public Object[] getResults() throws 
InterruptedIOException;<a name="line.127"></a>
+<span class="sourceLineNo">128</span>    /** Wait until all tasks are 
executed, successfully or not. */<a name="line.128"></a>
+<span class="sourceLineNo">129</span>    public void waitUntilDone() throws 
InterruptedIOException;<a name="line.129"></a>
+<span class="sourceLineNo">130</span>  }<a name="line.130"></a>
+<span class="sourceLineNo">131</span><a name="line.131"></a>
+<span class="sourceLineNo">132</span>  /**<a name="line.132"></a>
+<span class="sourceLineNo">133</span>   * Return value from a submit that 
didn't contain any requests.<a name="line.133"></a>
+<span class="sourceLineNo">134</span>   */<a name="line.134"></a>
+<span class="sourceLineNo">135</span>  private static final AsyncRequestFuture 
NO_REQS_RESULT = new AsyncRequestFuture() {<a name="line.135"></a>
+<span class="sourceLineNo">136</span>    final Object[] result = new 
Object[0];<a name="line.136"></a>
+<span class="sourceLineNo">137</span><a name="line.137"></a>
+<span class="sourceLineNo">138</span>    @Override<a name="line.138"></a>
+<span class="sourceLineNo">139</span>    public boolean hasError() {<a 
name="line.139"></a>
+<span class="sourceLineNo">140</span>      return false;<a name="line.140"></a>
+<span class="sourceLineNo">141</span>    }<a name="line.141"></a>
+<span class="sourceLineNo">142</span><a name="line.142"></a>
+<span class="sourceLineNo">143</span>    @Override<a name="line.143"></a>
+<span class="sourceLineNo">144</span>    public 
RetriesExhaustedWithDetailsException getErrors() {<a name="line.144"></a>
+<span class="sourceLineNo">145</span>      return null;<a name="line.145"></a>
+<span class="sourceLineNo">146</span>    }<a name="line.146"></a>
+<span class="sourceLineNo">147</span><a name="line.147"></a>
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+<span class="sourceLineNo">149</span>    public List&lt;? extends Row&gt; 
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replicas for the same user request (Get).<a name="line.163"></a>
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(we assume replica calls require results) when<a name="line.164"></a>
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results for details of this process.<a name="line.165"></a>
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modify them, the object itself is locked. */<a name="line.166"></a>
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decided whether we will report them to user. If one of the<a 
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addresses.addAll(other.addresses);<a name="line.260"></a>
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boolean atLeastOne, Batch.Callback&lt;CResult&gt; callback,<a 
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retainedActions = new ArrayList&lt;Action&lt;Row&gt;&gt;(rows.size());<a 
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retainedActions, long nonceGroup, Batch.Callback&lt;CResult&gt; callback,<a 
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locationErrorRows, Map&lt;ServerName, MultiAction&lt;Row&gt;&gt; 
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ars = createAsyncRequestFuture(<a name="line.439"></a>
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nonceGroup, pool, callback, results, needResults);<a name="line.440"></a>
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MultiAction&lt;Row&gt;&gt; actionsByServer, long nonceGroup) {<a 
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actionsByServer.get(server);<a name="line.464"></a>
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multiAction.setNonceGroup(nonceGroup);<a name="line.470"></a>
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Map&lt;Long, Boolean&gt; regionsIncluded,<a name="line.485"></a>
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regionCnt.get() &gt;= maxConcurrentTasksPerRegion) {<a name="line.503"></a>
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serversIncluded.put(loc.getServerName(), Boolean.FALSE);<a name="line.529"></a>
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serversIncluded.put(loc.getServerName(), Boolean.TRUE);<a name="line.533"></a>
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setNonce(NonceGenerator ng, Row r, Action&lt;Row&gt; action) {<a 
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!(r instanceof Increment)) return;<a name="line.588"></a>
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single submit/submitAll call.<a name="line.593"></a>
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submit) works. Initially, all requests are split into groups<a 
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server in parallel; the RPC calls are not async so a<a name="line.595"></a>
-<span class="sourceLineNo">596</span>   * thread per server is used. Every 
time some actions fail, regions/locations might have<a name="line.596"></a>
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server and region again and send these groups in parallel<a name="line.597"></a>
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is a "tree" of threads, with parent exiting after<a name="line.598"></a>
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lots of code doesn't require any synchronization.<a name="line.599"></a>
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AsyncRequestFutureImpl&lt;CResult&gt; implements AsyncRequestFuture {<a 
name="line.601"></a>
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thread pool) that waits for when it's time<a name="line.604"></a>
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region replicas, groups the requests by replica and<a name="line.605"></a>
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threads, via sendMultiAction).<a name="line.606"></a>
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because we don't want to wait on user thread for<a name="line.607"></a>
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we have to wait before making replica calls.<a name="line.608"></a>
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ReplicaCallIssuingRunnable(List&lt;Action&lt;Row&gt;&gt; initialActions, long 
startTime) {<a name="line.614"></a>
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ex) {<a name="line.625"></a>
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MultiAction&lt;Row&gt;&gt; actionsByServer =<a name="line.631"></a>
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{<a name="line.634"></a>
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results.length; ++i) {<a name="line.635"></a>
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addReplicaActions(replicaGetIndice, actionsByServer, unknownLocActions);<a 
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sendMultiAction(actionsByServer, 1, null, unknownLocActions.isEmpty());<a 
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{<a name="line.646"></a>
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HashMap&lt;ServerName, MultiAction&lt;Row&gt;&gt;();<a name="line.647"></a>
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unknownLocActions) {<a name="line.648"></a>
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addReplicaActionsAgain(action, actionsByServer);<a name="line.649"></a>
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sendMultiAction(actionsByServer, 1, null, true);<a name="line.653"></a>
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-<span class="sourceLineNo">657</span><a name="line.657"></a>
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map by server.<a name="line.659"></a>
-<span class="sourceLineNo">660</span>       * @param index Index of the 
original action.<a name="line.660"></a>
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return; // opportunistic. Never goes from non-null to null.<a 
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initialActions.get(index);<a name="line.666"></a>
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findAllLocationsOrFail(action, true);<a name="line.667"></a>
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loc.getRegionLocations();<a name="line.669"></a>
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-<span class="sourceLineNo">674</span>        synchronized (replicaResultLock) 
{<a name="line.674"></a>
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before first replica call (unlikely given retries),<a name="line.676"></a>
-<span class="sourceLineNo">677</span>          // but that would require 
additional synchronization w.r.t. returning to caller.<a name="line.677"></a>
-<span class="sourceLineNo">678</span>          if (results[index] != null) 
return;<a name="line.678"></a>
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are not found - if we refuse to send we MUST set error.<a name="line.680"></a>
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-<span class="sourceLineNo">682</span>        }<a name="line.682"></a>
-<span class="sourceLineNo">683</span>        for (int i = 1; i &lt; 
locs.length; ++i) {<a name="line.683"></a>
-<span class="sourceLineNo">684</span>          Action&lt;Row&gt; replicaAction 
= new Action&lt;Row&gt;(action, i);<a name="line.684"></a>
-<span class="sourceLineNo">685</span>          if (locs[i] != null) {<a 
name="line.685"></a>
-<span class="sourceLineNo">686</span>            
addAction(locs[i].getServerName(), locs[i].getRegionInfo().getRegionName(),<a 
name="line.686"></a>
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actionsByServer, nonceGroup);<a name="line.687"></a>
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unknownReplicaActions.add(replicaAction);<a name="line.689"></a>
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-<span class="sourceLineNo">691</span>        }<a name="line.691"></a>
-<span class="sourceLineNo">692</span>      }<a name="line.692"></a>
-<span class="sourceLineNo">693</span><a name="line.693"></a>
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addReplicaActionsAgain(<a name="line.694"></a>
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Map&lt;ServerName, MultiAction&lt;Row&gt;&gt; actionsByServer) {<a 
name="line.695"></a>
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RegionReplicaUtil.DEFAULT_REPLICA_ID) {<a name="line.696"></a>
-<span class="sourceLineNo">697</span>          throw new 
AssertionError("Cannot have default replica here");<a name="line.697"></a>
+<span class="sourceLineNo">184</span><a name="line.184"></a>
+<span class="sourceLineNo">185</span>  // TODO: many of the fields should be 
made private<a name="line.185"></a>
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name="line.186"></a>
+<span class="sourceLineNo">187</span><a name="line.187"></a>
+<span class="sourceLineNo">188</span>  protected final ClusterConnection 
connection;<a name="line.188"></a>
+<span class="sourceLineNo">189</span>  protected final 
RpcRetryingCallerFactory rpcCallerFactory;<a name="line.189"></a>
+<span class="sourceLineNo">190</span>  protected final RpcControllerFactory 
rpcFactory;<a name="line.190"></a>
+<span class="sourceLineNo">191</span>  protected final BatchErrors 
globalErrors;<a name="line.191"></a>
+<span class="sourceLineNo">192</span>  protected final ExecutorService pool;<a 
name="line.192"></a>
+<span class="sourceLineNo">193</span><a name="line.193"></a>
+<span class="sourceLineNo">194</span>  protected final AtomicLong 
tasksInProgress = new AtomicLong(0);<a name="line.194"></a>
+<span class="sourceLineNo">195</span>  protected final 
ConcurrentMap&lt;byte[], AtomicInteger&gt; taskCounterPerRegion =<a 
name="line.195"></a>
+<span class="sourceLineNo">196</span>      new 
ConcurrentSkipListMap&lt;byte[], AtomicInteger&gt;(Bytes.BYTES_COMPARATOR);<a 
name="line.196"></a>
+<span class="sourceLineNo">197</span>  protected final 
ConcurrentMap&lt;ServerName, AtomicInteger&gt; taskCounterPerServer =<a 
name="line.197"></a>
+<span class="sourceLineNo">198</span>      new 
ConcurrentHashMap&lt;ServerName, AtomicInteger&gt;();<a name="line.198"></a>
+<span class="sourceLineNo">199</span><a name="line.199"></a>
+<span class="sourceLineNo">200</span>  // Start configuration settings.<a 
name="line.200"></a>
+<span class="sourceLineNo">201</span>  private final int startLogErrorsCnt;<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>   * The number of tasks simultaneously 
executed on the cluster.<a name="line.204"></a>
+<span class="sourceLineNo">205</span>   */<a name="line.205"></a>
+<span class="sourceLineNo">206</span>  protected final int 
maxTotalConcurrentTasks;<a name="line.206"></a>
+<span class="sourceLineNo">207</span><a name="line.207"></a>
+<span class="sourceLineNo">208</span>  /**<a name="line.208"></a>
+<span class="sourceLineNo">209</span>   * The number of tasks we run in 
parallel on a single region.<a name="line.209"></a>
+<span class="sourceLineNo">210</span>   * With 1 (the default) , we ensure 
that the ordering of the queries is respected: we don't start<a 
name="line.210"></a>
+<span class="sourceLineNo">211</span>   * a set of operations on a region 
before the previous one is done. As well, this limits<a name="line.211"></a>
+<span class="sourceLineNo">212</span>   * the pressure we put on the region 
server.<a name="line.212"></a>
+<span class="sourceLineNo">213</span>   */<a name="line.213"></a>
+<span class="sourceLineNo">214</span>  protected final int 
maxConcurrentTasksPerRegion;<a name="line.214"></a>
+<span class="sourceLineNo">215</span><a name="line.215"></a>
+<span class="sourceLineNo">216</span>  /**<a name="line.216"></a>
+<span class="sourceLineNo">217</span>   * The number of task simultaneously 
executed on a single region server.<a name="line.217"></a>
+<span class="sourceLineNo">218</span>   */<a name="line.218"></a>
+<span class="sourceLineNo">219</span>  protected final int 
maxConcurrentTasksPerServer;<a name="line.219"></a>
+<span class="sourceLineNo">220</span>  protected final long pause;<a 
name="line.220"></a>
+<span class="sourceLineNo">221</span>  protected int numTries;<a 
name="line.221"></a>
+<span class="sourceLineNo">222</span>  protected int serverTrackerTimeout;<a 
name="line.222"></a>
+<span class="sourceLineNo">223</span>  protected int timeout;<a 
name="line.223"></a>
+<span class="sourceLineNo">224</span>  protected long 
primaryCallTimeoutMicroseconds;<a name="line.224"></a>
+<span class="sourceLineNo">225</span>  // End configuration settings.<a 
name="line.225"></a>
+<span class="sourceLineNo">226</span><a name="line.226"></a>
+<span class="sourceLineNo">227</span>  protected static class BatchErrors {<a 
name="line.227"></a>
+<span class="sourceLineNo">228</span>    private final List&lt;Throwable&gt; 
throwables = new ArrayList&lt;Throwable&gt;();<a name="line.228"></a>
+<span class="sourceLineNo">229</span>    private final List&lt;Row&gt; actions 
= new ArrayList&lt;Row&gt;();<a name="line.229"></a>
+<span class="sourceLineNo">230</span>    private final List&lt;String&gt; 
addresses = new ArrayList&lt;String&gt;();<a name="line.230"></a>
+<span class="sourceLineNo">231</span><a name="line.231"></a>
+<span class="sourceLineNo">232</span>    public synchronized void 
add(Throwable ex, Row row, ServerName serverName) {<a name="line.232"></a>
+<span class="sourceLineNo">233</span>      if (row == null){<a 
name="line.233"></a>
+<span class="sourceLineNo">234</span>        throw new 
IllegalArgumentException("row cannot be null. location=" + serverName);<a 
name="line.234"></a>
+<span class="sourceLineNo">235</span>      }<a name="line.235"></a>
+<span class="sourceLineNo">236</span><a name="line.236"></a>
+<span class="sourceLineNo">237</span>      throwables.add(ex);<a 
name="line.237"></a>
+<span class="sourceLineNo">238</span>      actions.add(row);<a 
name="line.238"></a>
+<span class="sourceLineNo">239</span>      addresses.add(serverName != null ? 
serverName.toString() : "null");<a name="line.239"></a>
+<span class="sourceLineNo">240</span>    }<a name="line.240"></a>
+<span class="sourceLineNo">241</span><a name="line.241"></a>
+<span class="sourceLineNo">242</span>    public boolean hasErrors() {<a 
name="line.242"></a>
+<span class="sourceLineNo">243</span>      return !throwables.isEmpty();<a 
name="line.243"></a>
+<span class="sourceLineNo">244</span>    }<a name="line.244"></a>
+<span class="sourceLineNo">245</span><a name="line.245"></a>
+<span class="sourceLineNo">246</span>    private synchronized 
RetriesExhaustedWithDetailsException makeException() {<a name="line.246"></a>
+<span class="sourceLineNo">247</span>      return new 
RetriesExhaustedWithDetailsException(<a name="line.247"></a>
+<span class="sourceLineNo">248</span>          new 
ArrayList&lt;Throwable&gt;(throwables),<a name="line.248"></a>
+<span class="sourceLineNo">249</span>          new 
ArrayList&lt;Row&gt;(actions), new ArrayList&lt;String&gt;(addresses));<a 
name="line.249"></a>
+<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>    public synchronized void clear() {<a 
name="line.252"></a>
+<span class="sourceLineNo">253</span>      throwables.clear();<a 
name="line.253"></a>
+<span class="sourceLineNo">254</span>      actions.clear();<a 
name="line.254"></a>
+<span class="sourceLineNo">255</span>      addresses.clear();<a 
name="line.255"></a>
+<span class="sourceLineNo">256</span>    }<a name="line.256"></a>
+<span class="sourceLineNo">257</span><a name="line.257"></a>
+<span class="sourceLineNo">258</span>    public synchronized void 
merge(BatchErrors other) {<a name="line.258"></a>
+<span class="sourceLineNo">259</span>      
throwables.addAll(other.throwables);<a name="line.259"></a>
+<span class="sourceLineNo">260</span>      actions.addAll(other.actions);<a 
name="line.260"></a>
+<span class="sourceLineNo">261</span>      
addresses.addAll(other.addresses);<a name="line.261"></a>
+<span class="sourceLineNo">262</span>    }<a name="line.262"></a>
+<span class="sourceLineNo">263</span>  }<a name="line.263"></a>
+<span class="sourceLineNo">264</span><a name="line.264"></a>
+<span class="sourceLineNo">265</span>  public AsyncProcess(ClusterConnection 
hc, Configuration conf, ExecutorService pool,<a name="line.265"></a>
+<span class="sourceLineNo">266</span>      RpcRetryingCallerFactory rpcCaller, 
boolean useGlobalErrors,<a name="line.266"></a>
+<span class="sourceLineNo">267</span>      RpcControllerFactory rpcFactory) 
{<a name="line.267"></a>
+<span class="sourceLineNo">268</span>    if (hc == null) {<a 
name="line.268"></a>
+<span class="sourceLineNo">269</span>      t

<TRUNCATED>

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