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Posted to commits@hbase.apache.org by mi...@apache.org on 2015/12/11 17:31:02 UTC

[10/51] [partial] hbase-site git commit: Published site at 22b95aebcd7fc742412ab514520008fda5e327de.

http://git-wip-us.apache.org/repos/asf/hbase-site/blob/900a9477/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncProcess.AsyncRequestFuture.html
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diff --git a/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncProcess.AsyncRequestFuture.html b/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncProcess.AsyncRequestFuture.html
index c8d868f..d0040f6 100644
--- a/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncProcess.AsyncRequestFuture.html
+++ b/devapidocs/src-html/org/apache/hadoop/hbase/client/AsyncProcess.AsyncRequestFuture.html
@@ -49,1752 +49,1792 @@
 <span class="sourceLineNo">041</span><a name="line.41"></a>
 <span class="sourceLineNo">042</span>import org.apache.commons.logging.Log;<a name="line.42"></a>
 <span class="sourceLineNo">043</span>import org.apache.commons.logging.LogFactory;<a name="line.43"></a>
-<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.44"></a>
-<span class="sourceLineNo">045</span>import org.apache.hadoop.conf.Configuration;<a name="line.45"></a>
-<span class="sourceLineNo">046</span>import org.apache.hadoop.hbase.DoNotRetryIOException;<a name="line.46"></a>
-<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.HConstants;<a name="line.47"></a>
-<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.HRegionInfo;<a name="line.48"></a>
-<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.HRegionLocation;<a name="line.49"></a>
-<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.RegionLocations;<a name="line.50"></a>
-<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.ServerName;<a name="line.51"></a>
-<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.TableName;<a name="line.52"></a>
-<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.client.backoff.ServerStatistics;<a name="line.53"></a>
-<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.client.coprocessor.Batch;<a name="line.54"></a>
-<span class="sourceLineNo">055</span>import org.apache.hadoop.hbase.ipc.RpcControllerFactory;<a name="line.55"></a>
-<span class="sourceLineNo">056</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.56"></a>
-<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.57"></a>
-<span class="sourceLineNo">058</span>import org.apache.htrace.Trace;<a name="line.58"></a>
-<span class="sourceLineNo">059</span><a name="line.59"></a>
-<span class="sourceLineNo">060</span>import com.google.common.annotations.VisibleForTesting;<a name="line.60"></a>
-<span class="sourceLineNo">061</span><a name="line.61"></a>
-<span class="sourceLineNo">062</span>/**<a name="line.62"></a>
-<span class="sourceLineNo">063</span> * This class  allows a continuous flow of requests. It's written to be compatible with a<a name="line.63"></a>
-<span class="sourceLineNo">064</span> * synchronous caller such as HTable.<a name="line.64"></a>
-<span class="sourceLineNo">065</span> * &lt;p&gt;<a name="line.65"></a>
-<span class="sourceLineNo">066</span> * The caller sends a buffer of operation, by calling submit. This class extract from this list<a name="line.66"></a>
-<span class="sourceLineNo">067</span> * the operations it can send, i.e. the operations that are on region that are not considered<a name="line.67"></a>
-<span class="sourceLineNo">068</span> * as busy. The process is asynchronous, i.e. it returns immediately when if has finished to<a name="line.68"></a>
-<span class="sourceLineNo">069</span> * iterate on the list. If, and only if, the maximum number of current task is reached, the call<a name="line.69"></a>
-<span class="sourceLineNo">070</span> * to submit will block. Alternatively, the caller can call submitAll, in which case all the<a name="line.70"></a>
-<span class="sourceLineNo">071</span> * operations will be sent. Each call to submit returns a future-like object that can be used<a name="line.71"></a>
-<span class="sourceLineNo">072</span> * to track operation progress.<a name="line.72"></a>
-<span class="sourceLineNo">073</span> * &lt;/p&gt;<a name="line.73"></a>
-<span class="sourceLineNo">074</span> * &lt;p&gt;<a name="line.74"></a>
-<span class="sourceLineNo">075</span> * The class manages internally the retries.<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 can be constructed in regular mode, or "global error" mode. In global error mode,<a name="line.78"></a>
-<span class="sourceLineNo">079</span> * AP tracks errors across all calls (each "future" also has global view of all errors). That<a name="line.79"></a>
-<span class="sourceLineNo">080</span> * mode is necessary for backward compat with HTable behavior, where multiple submissions are<a name="line.80"></a>
-<span class="sourceLineNo">081</span> * made and the errors can propagate using any put/flush call, from previous calls.<a name="line.81"></a>
-<span class="sourceLineNo">082</span> * In "regular" mode, the errors are tracked inside the Future object that is returned.<a name="line.82"></a>
-<span class="sourceLineNo">083</span> * The results are always tracked inside the Future object and can be retrieved when the call<a name="line.83"></a>
-<span class="sourceLineNo">084</span> * has finished. Partial results can also be retrieved if some part of multi-request failed.<a name="line.84"></a>
-<span class="sourceLineNo">085</span> * &lt;/p&gt;<a name="line.85"></a>
-<span class="sourceLineNo">086</span> * &lt;p&gt;<a name="line.86"></a>
-<span class="sourceLineNo">087</span> * This class is thread safe in regular mode; in global error code, submitting operations and<a name="line.87"></a>
-<span class="sourceLineNo">088</span> * retrieving errors from different threads may be not thread safe.<a name="line.88"></a>
-<span class="sourceLineNo">089</span> * Internally, the class is thread safe enough to manage simultaneously new submission and results<a name="line.89"></a>
-<span class="sourceLineNo">090</span> * arising from older operations.<a name="line.90"></a>
-<span class="sourceLineNo">091</span> * &lt;/p&gt;<a name="line.91"></a>
-<span class="sourceLineNo">092</span> * &lt;p&gt;<a name="line.92"></a>
-<span class="sourceLineNo">093</span> * Internally, this class works with {@link Row}, this mean it could be theoretically used for<a name="line.93"></a>
-<span class="sourceLineNo">094</span> * gets as well.<a name="line.94"></a>
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-<span class="sourceLineNo">097</span>@InterfaceAudience.Private<a name="line.97"></a>
-<span class="sourceLineNo">098</span>class AsyncProcess {<a name="line.98"></a>
-<span class="sourceLineNo">099</span>  private static final Log LOG = LogFactory.getLog(AsyncProcess.class);<a name="line.99"></a>
-<span class="sourceLineNo">100</span>  protected static final AtomicLong COUNTER = new AtomicLong();<a name="line.100"></a>
-<span class="sourceLineNo">101</span><a name="line.101"></a>
-<span class="sourceLineNo">102</span>  public static final String PRIMARY_CALL_TIMEOUT_KEY = "hbase.client.primaryCallTimeout.multiget";<a name="line.102"></a>
-<span class="sourceLineNo">103</span><a name="line.103"></a>
-<span class="sourceLineNo">104</span>  /**<a name="line.104"></a>
-<span class="sourceLineNo">105</span>   * Configure the number of failures after which the client will start logging. A few failures<a name="line.105"></a>
-<span class="sourceLineNo">106</span>   * is fine: region moved, then is not opened, then is overloaded. We try to have an acceptable<a name="line.106"></a>
-<span class="sourceLineNo">107</span>   * heuristic for the number of errors we don't log. 9 was chosen because we wait for 1s at<a name="line.107"></a>
-<span class="sourceLineNo">108</span>   * this stage.<a name="line.108"></a>
-<span class="sourceLineNo">109</span>   */<a name="line.109"></a>
-<span class="sourceLineNo">110</span>  public static final String START_LOG_ERRORS_AFTER_COUNT_KEY =<a name="line.110"></a>
-<span class="sourceLineNo">111</span>      "hbase.client.start.log.errors.counter";<a name="line.111"></a>
-<span class="sourceLineNo">112</span>  public static final int DEFAULT_START_LOG_ERRORS_AFTER_COUNT = 9;<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>   * The context used to wait for results from one submit call.<a name="line.115"></a>
-<span class="sourceLineNo">116</span>   * 1) If AsyncProcess is set to track errors globally, and not per call (for HTable puts),<a name="line.116"></a>
-<span class="sourceLineNo">117</span>   *    then errors and failed operations in this object will reflect global errors.<a name="line.117"></a>
-<span class="sourceLineNo">118</span>   * 2) If submit call is made with needResults false, results will not be saved.<a name="line.118"></a>
-<span class="sourceLineNo">119</span>   *  */<a name="line.119"></a>
-<span class="sourceLineNo">120</span>  public static interface AsyncRequestFuture {<a name="line.120"></a>
-<span class="sourceLineNo">121</span>    public boolean hasError();<a name="line.121"></a>
-<span class="sourceLineNo">122</span>    public RetriesExhaustedWithDetailsException getErrors();<a name="line.122"></a>
-<span class="sourceLineNo">123</span>    public List&lt;? extends Row&gt; getFailedOperations();<a name="line.123"></a>
-<span class="sourceLineNo">124</span>    public Object[] getResults() throws InterruptedIOException;<a name="line.124"></a>
-<span class="sourceLineNo">125</span>    /** Wait until all tasks are executed, successfully or not. */<a name="line.125"></a>
-<span class="sourceLineNo">126</span>    public void waitUntilDone() throws InterruptedIOException;<a name="line.126"></a>
-<span class="sourceLineNo">127</span>  }<a name="line.127"></a>
-<span class="sourceLineNo">128</span><a name="line.128"></a>
-<span class="sourceLineNo">129</span>  /** Return value from a submit that didn't contain any requests. */<a name="line.129"></a>
-<span class="sourceLineNo">130</span>  private static final AsyncRequestFuture NO_REQS_RESULT = new AsyncRequestFuture() {<a name="line.130"></a>
-<span class="sourceLineNo">131</span>    final Object[] result = new Object[0];<a name="line.131"></a>
-<span class="sourceLineNo">132</span>    @Override<a name="line.132"></a>
-<span class="sourceLineNo">133</span>    public boolean hasError() { return false; }<a name="line.133"></a>
-<span class="sourceLineNo">134</span>    @Override<a name="line.134"></a>
-<span class="sourceLineNo">135</span>    public RetriesExhaustedWithDetailsException getErrors() { return null; }<a name="line.135"></a>
+<span class="sourceLineNo">044</span>import org.apache.hadoop.hbase.RetryImmediatelyException;<a name="line.44"></a>
+<span class="sourceLineNo">045</span>import org.apache.hadoop.hbase.classification.InterfaceAudience;<a name="line.45"></a>
+<span class="sourceLineNo">046</span>import org.apache.hadoop.conf.Configuration;<a name="line.46"></a>
+<span class="sourceLineNo">047</span>import org.apache.hadoop.hbase.DoNotRetryIOException;<a name="line.47"></a>
+<span class="sourceLineNo">048</span>import org.apache.hadoop.hbase.HConstants;<a name="line.48"></a>
+<span class="sourceLineNo">049</span>import org.apache.hadoop.hbase.HRegionInfo;<a name="line.49"></a>
+<span class="sourceLineNo">050</span>import org.apache.hadoop.hbase.HRegionLocation;<a name="line.50"></a>
+<span class="sourceLineNo">051</span>import org.apache.hadoop.hbase.RegionLocations;<a name="line.51"></a>
+<span class="sourceLineNo">052</span>import org.apache.hadoop.hbase.ServerName;<a name="line.52"></a>
+<span class="sourceLineNo">053</span>import org.apache.hadoop.hbase.TableName;<a name="line.53"></a>
+<span class="sourceLineNo">054</span>import org.apache.hadoop.hbase.client.backoff.ServerStatistics;<a name="line.54"></a>
+<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.ipc.RpcControllerFactory;<a name="line.56"></a>
+<span class="sourceLineNo">057</span>import org.apache.hadoop.hbase.util.Bytes;<a name="line.57"></a>
+<span class="sourceLineNo">058</span>import org.apache.hadoop.hbase.util.EnvironmentEdgeManager;<a name="line.58"></a>
+<span class="sourceLineNo">059</span>import org.apache.htrace.Trace;<a name="line.59"></a>
+<span class="sourceLineNo">060</span><a name="line.60"></a>
+<span class="sourceLineNo">061</span>import com.google.common.annotations.VisibleForTesting;<a name="line.61"></a>
+<span class="sourceLineNo">062</span><a name="line.62"></a>
+<span class="sourceLineNo">063</span>/**<a name="line.63"></a>
+<span class="sourceLineNo">064</span> * This class  allows a continuous flow of requests. It's written to be compatible with a<a name="line.64"></a>
+<span class="sourceLineNo">065</span> * synchronous caller such as HTable.<a name="line.65"></a>
+<span class="sourceLineNo">066</span> * &lt;p&gt;<a name="line.66"></a>
+<span class="sourceLineNo">067</span> * The caller sends a buffer of operation, by calling submit. This class extract from this list<a name="line.67"></a>
+<span class="sourceLineNo">068</span> * the operations it can send, i.e. the operations that are on region that are not considered<a name="line.68"></a>
+<span class="sourceLineNo">069</span> * as busy. The process is asynchronous, i.e. it returns immediately when if has finished to<a name="line.69"></a>
+<span class="sourceLineNo">070</span> * iterate on the list. If, and only if, the maximum number of current task is reached, the call<a name="line.70"></a>
+<span class="sourceLineNo">071</span> * to submit will block. Alternatively, the caller can call submitAll, in which case all the<a name="line.71"></a>
+<span class="sourceLineNo">072</span> * operations will be sent. Each call to submit returns a future-like object that can be used<a name="line.72"></a>
+<span class="sourceLineNo">073</span> * to track operation progress.<a name="line.73"></a>
+<span class="sourceLineNo">074</span> * &lt;/p&gt;<a name="line.74"></a>
+<span class="sourceLineNo">075</span> * &lt;p&gt;<a name="line.75"></a>
+<span class="sourceLineNo">076</span> * The class manages internally the retries.<a name="line.76"></a>
+<span class="sourceLineNo">077</span> * &lt;/p&gt;<a name="line.77"></a>
+<span class="sourceLineNo">078</span> * &lt;p&gt;<a name="line.78"></a>
+<span class="sourceLineNo">079</span> * The class can be constructed in regular mode, or "global error" mode. In global error mode,<a name="line.79"></a>
+<span class="sourceLineNo">080</span> * AP tracks errors across all calls (each "future" also has global view of all errors). That<a name="line.80"></a>
+<span class="sourceLineNo">081</span> * mode is necessary for backward compat with HTable behavior, where multiple submissions are<a name="line.81"></a>
+<span class="sourceLineNo">082</span> * made and the errors can propagate using any put/flush call, from previous calls.<a name="line.82"></a>
+<span class="sourceLineNo">083</span> * In "regular" mode, the errors are tracked inside the Future object that is returned.<a name="line.83"></a>
+<span class="sourceLineNo">084</span> * The results are always tracked inside the Future object and can be retrieved when the call<a name="line.84"></a>
+<span class="sourceLineNo">085</span> * has finished. Partial results can also be retrieved if some part of multi-request failed.<a name="line.85"></a>
+<span class="sourceLineNo">086</span> * &lt;/p&gt;<a name="line.86"></a>
+<span class="sourceLineNo">087</span> * &lt;p&gt;<a name="line.87"></a>
+<span class="sourceLineNo">088</span> * This class is thread safe in regular mode; in global error code, submitting operations and<a name="line.88"></a>
+<span class="sourceLineNo">089</span> * retrieving errors from different threads may be not thread safe.<a name="line.89"></a>
+<span class="sourceLineNo">090</span> * Internally, the class is thread safe enough to manage simultaneously new submission and results<a name="line.90"></a>
+<span class="sourceLineNo">091</span> * arising from older operations.<a name="line.91"></a>
+<span class="sourceLineNo">092</span> * &lt;/p&gt;<a name="line.92"></a>
+<span class="sourceLineNo">093</span> * &lt;p&gt;<a name="line.93"></a>
+<span class="sourceLineNo">094</span> * Internally, this class works with {@link Row}, this mean it could be theoretically used for<a name="line.94"></a>
+<span class="sourceLineNo">095</span> * gets as well.<a name="line.95"></a>
+<span class="sourceLineNo">096</span> * &lt;/p&gt;<a name="line.96"></a>
+<span class="sourceLineNo">097</span> */<a name="line.97"></a>
+<span class="sourceLineNo">098</span>@InterfaceAudience.Private<a name="line.98"></a>
+<span class="sourceLineNo">099</span>class AsyncProcess {<a name="line.99"></a>
+<span class="sourceLineNo">100</span>  private static final Log LOG = LogFactory.getLog(AsyncProcess.class);<a name="line.100"></a>
+<span class="sourceLineNo">101</span>  protected static final AtomicLong COUNTER = new AtomicLong();<a name="line.101"></a>
+<span class="sourceLineNo">102</span><a name="line.102"></a>
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+<span class="sourceLineNo">104</span><a name="line.104"></a>
+<span class="sourceLineNo">105</span>  /**<a name="line.105"></a>
+<span class="sourceLineNo">106</span>   * Configure the number of failures after which the client will start logging. A few failures<a name="line.106"></a>
+<span class="sourceLineNo">107</span>   * is fine: region moved, then is not opened, then is overloaded. We try to have an acceptable<a name="line.107"></a>
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+<span class="sourceLineNo">109</span>   * this stage.<a name="line.109"></a>
+<span class="sourceLineNo">110</span>   */<a name="line.110"></a>
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+<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>   * The context used to wait for results from one submit call.<a name="line.116"></a>
+<span class="sourceLineNo">117</span>   * 1) If AsyncProcess is set to track errors globally, and not per call (for HTable puts),<a name="line.117"></a>
+<span class="sourceLineNo">118</span>   *    then errors and failed operations in this object will reflect global errors.<a name="line.118"></a>
+<span class="sourceLineNo">119</span>   * 2) If submit call is made with needResults false, results will not be saved.<a name="line.119"></a>
+<span class="sourceLineNo">120</span>   *  */<a name="line.120"></a>
+<span class="sourceLineNo">121</span>  public static interface AsyncRequestFuture {<a name="line.121"></a>
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