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| 91 | org.apache.hadoop.metrics.util</FONT> |
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| 92 | <BR> |
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| 93 | Class MetricsTimeVaryingLong</H2> |
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| 94 | <PRE> |
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| 95 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A> |
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| 96 | <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsBase.html" title="class in org.apache.hadoop.metrics.util">org.apache.hadoop.metrics.util.MetricsBase</A> |
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| 97 | <IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.metrics.util.MetricsTimeVaryingLong</B> |
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| 98 | </PRE> |
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| 99 | <HR> |
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| 100 | <DL> |
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| 101 | <DT><PRE>public class <B>MetricsTimeVaryingLong</B><DT>extends <A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsBase.html" title="class in org.apache.hadoop.metrics.util">MetricsBase</A></DL> |
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| 102 | </PRE> |
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| 103 | |
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| 104 | <P> |
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| 105 | The MetricsTimeVaryingLong class is for a metric that naturally |
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| 106 | varies over time (e.g. number of files created). The metrics is accumulated |
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| 107 | over an interval (set in the metrics config file); the metrics is |
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| 108 | published at the end of each interval and then |
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| 109 | reset to zero. Hence the counter has the value in the current interval. |
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| 110 | |
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| 111 | Note if one wants a time associated with the metric then use |
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| 112 | <P> |
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| 113 | |
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| 114 | <P> |
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| 115 | <DL> |
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| 116 | <DT><B>See Also:</B><DD><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsTimeVaryingRate.html" title="class in org.apache.hadoop.metrics.util"><CODE>MetricsTimeVaryingRate</CODE></A></DL> |
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| 117 | <HR> |
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| 118 | |
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| 119 | <P> |
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| 120 | <!-- =========== FIELD SUMMARY =========== --> |
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| 126 | <B>Field Summary</B></FONT></TH> |
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| 127 | </TR> |
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| 128 | </TABLE> |
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| 129 | <A NAME="fields_inherited_from_class_org.apache.hadoop.metrics.util.MetricsBase"><!-- --></A> |
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| 131 | <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
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| 132 | <TH ALIGN="left"><B>Fields inherited from class org.apache.hadoop.metrics.util.<A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsBase.html" title="class in org.apache.hadoop.metrics.util">MetricsBase</A></B></TH> |
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| 133 | </TR> |
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| 134 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 135 | <TD><CODE><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsBase.html#NO_DESCRIPTION">NO_DESCRIPTION</A></CODE></TD> |
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| 139 | <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
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| 145 | <B>Constructor Summary</B></FONT></TH> |
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| 146 | </TR> |
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| 147 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 148 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsTimeVaryingLong.html#MetricsTimeVaryingLong(java.lang.String, org.apache.hadoop.metrics.util.MetricsRegistry)">MetricsTimeVaryingLong</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> nam, |
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| 149 | <A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsRegistry.html" title="class in org.apache.hadoop.metrics.util">MetricsRegistry</A> registry)</CODE> |
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| 150 | |
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| 151 | <BR> |
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| 152 | Constructor - create a new metric</TD> |
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| 153 | </TR> |
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| 154 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 155 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsTimeVaryingLong.html#MetricsTimeVaryingLong(java.lang.String, org.apache.hadoop.metrics.util.MetricsRegistry, java.lang.String)">MetricsTimeVaryingLong</A></B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> nam, |
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| 156 | <A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsRegistry.html" title="class in org.apache.hadoop.metrics.util">MetricsRegistry</A> registry, |
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| 157 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> description)</CODE> |
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| 158 | |
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| 159 | <BR> |
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| 160 | Constructor - create a new metric</TD> |
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| 161 | </TR> |
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| 162 | </TABLE> |
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| 163 | |
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| 164 | <!-- ========== METHOD SUMMARY =========== --> |
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| 165 | |
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| 169 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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| 170 | <B>Method Summary</B></FONT></TH> |
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| 171 | </TR> |
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| 172 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 173 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 174 | <CODE> long</CODE></FONT></TD> |
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| 175 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsTimeVaryingLong.html#getCurrentIntervalValue()">getCurrentIntervalValue</A></B>()</CODE> |
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| 176 | |
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| 177 | <BR> |
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| 178 | The Value at the current interval</TD> |
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| 179 | </TR> |
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| 180 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 181 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 182 | <CODE> long</CODE></FONT></TD> |
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| 183 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsTimeVaryingLong.html#getPreviousIntervalValue()">getPreviousIntervalValue</A></B>()</CODE> |
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| 184 | |
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| 185 | <BR> |
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| 186 | The Value at the Previous interval</TD> |
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| 187 | </TR> |
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| 188 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 189 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 190 | <CODE> void</CODE></FONT></TD> |
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| 191 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsTimeVaryingLong.html#inc()">inc</A></B>()</CODE> |
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| 192 | |
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| 193 | <BR> |
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| 194 | Inc metrics by one</TD> |
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| 195 | </TR> |
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| 196 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 197 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 198 | <CODE> void</CODE></FONT></TD> |
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| 199 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsTimeVaryingLong.html#inc(long)">inc</A></B>(long incr)</CODE> |
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| 200 | |
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| 201 | <BR> |
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| 202 | Inc metrics for incr vlaue</TD> |
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| 203 | </TR> |
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| 204 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 205 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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| 206 | <CODE> void</CODE></FONT></TD> |
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| 207 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsTimeVaryingLong.html#pushMetric(org.apache.hadoop.metrics.MetricsRecord)">pushMetric</A></B>(<A HREF="../../../../../org/apache/hadoop/metrics/MetricsRecord.html" title="interface in org.apache.hadoop.metrics">MetricsRecord</A> mr)</CODE> |
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| 208 | |
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| 209 | <BR> |
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| 210 | Push the delta metrics to the mr.</TD> |
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| 211 | </TR> |
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| 212 | </TABLE> |
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| 213 | <A NAME="methods_inherited_from_class_org.apache.hadoop.metrics.util.MetricsBase"><!-- --></A> |
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| 214 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 215 | <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
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| 216 | <TH ALIGN="left"><B>Methods inherited from class org.apache.hadoop.metrics.util.<A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsBase.html" title="class in org.apache.hadoop.metrics.util">MetricsBase</A></B></TH> |
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| 217 | </TR> |
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| 218 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 219 | <TD><CODE><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsBase.html#getDescription()">getDescription</A>, <A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsBase.html#getName()">getName</A></CODE></TD> |
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| 220 | </TR> |
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| 221 | </TABLE> |
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| 222 | <A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A> |
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| 223 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 224 | <TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor"> |
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| 225 | <TH ALIGN="left"><B>Methods inherited from class java.lang.<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></B></TH> |
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| 226 | </TR> |
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| 227 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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| 228 | <TD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#clone()" title="class or interface in java.lang">clone</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#equals(java.lang.Object)" title="class or interface in java.lang">equals</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#finalize()" title="class or interface in java.lang">finalize</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#getClass()" title="class or interface in java.lang">getClass</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#hashCode()" title="class or interface in java.lang">hashCode</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notify()" title="class or interface in java.lang">notify</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#notifyAll()" title="class or interface in java.lang">notifyAll</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#toString()" title="class or interface in java.lang">toString</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait()" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long)" title="class or interface in java.lang">wait</A>, <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Object.html?is-external=true#wait(long, int)" title="class or interface in java.lang">wait</A></CODE></TD> |
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| 229 | </TR> |
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| 230 | </TABLE> |
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| 231 | |
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| 232 | <P> |
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| 233 | |
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| 234 | <!-- ========= CONSTRUCTOR DETAIL ======== --> |
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| 235 | |
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| 236 | <A NAME="constructor_detail"><!-- --></A> |
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| 237 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 238 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 239 | <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
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| 240 | <B>Constructor Detail</B></FONT></TH> |
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| 241 | </TR> |
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| 242 | </TABLE> |
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| 243 | |
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| 244 | <A NAME="MetricsTimeVaryingLong(java.lang.String, org.apache.hadoop.metrics.util.MetricsRegistry, java.lang.String)"><!-- --></A><H3> |
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| 245 | MetricsTimeVaryingLong</H3> |
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| 246 | <PRE> |
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| 247 | public <B>MetricsTimeVaryingLong</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> nam, |
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| 248 | <A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsRegistry.html" title="class in org.apache.hadoop.metrics.util">MetricsRegistry</A> registry, |
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| 249 | <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> description)</PRE> |
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| 250 | <DL> |
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| 251 | <DD>Constructor - create a new metric |
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| 252 | <P> |
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| 253 | <DL> |
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| 254 | <DT><B>Parameters:</B><DD><CODE>nam</CODE> - the name of the metrics to be used to publish the metric<DD><CODE>registry</CODE> - - where the metrics object will be registered</DL> |
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| 255 | </DL> |
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| 256 | <HR> |
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| 257 | |
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| 258 | <A NAME="MetricsTimeVaryingLong(java.lang.String, org.apache.hadoop.metrics.util.MetricsRegistry)"><!-- --></A><H3> |
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| 259 | MetricsTimeVaryingLong</H3> |
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| 260 | <PRE> |
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| 261 | public <B>MetricsTimeVaryingLong</B>(<A HREF="http://java.sun.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> nam, |
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| 262 | <A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsRegistry.html" title="class in org.apache.hadoop.metrics.util">MetricsRegistry</A> registry)</PRE> |
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| 263 | <DL> |
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| 264 | <DD>Constructor - create a new metric |
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| 265 | <P> |
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| 266 | <DL> |
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| 267 | <DT><B>Parameters:</B><DD><CODE>nam</CODE> - the name of the metrics to be used to publish the metric<DD><CODE>registry</CODE> - - where the metrics object will be registered |
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| 268 | A description of <A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsBase.html#NO_DESCRIPTION"><CODE>MetricsBase.NO_DESCRIPTION</CODE></A> is used</DL> |
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| 269 | </DL> |
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| 270 | |
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| 271 | <!-- ============ METHOD DETAIL ========== --> |
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| 272 | |
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| 273 | <A NAME="method_detail"><!-- --></A> |
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| 274 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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| 275 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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| 276 | <TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2"> |
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| 277 | <B>Method Detail</B></FONT></TH> |
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| 278 | </TR> |
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| 279 | </TABLE> |
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| 280 | |
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| 281 | <A NAME="inc(long)"><!-- --></A><H3> |
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| 282 | inc</H3> |
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| 283 | <PRE> |
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| 284 | public void <B>inc</B>(long incr)</PRE> |
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| 285 | <DL> |
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| 286 | <DD>Inc metrics for incr vlaue |
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| 287 | <P> |
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| 288 | <DD><DL> |
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| 289 | <DT><B>Parameters:</B><DD><CODE>incr</CODE> - - number of operations</DL> |
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| 290 | </DD> |
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| 291 | </DL> |
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| 292 | <HR> |
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| 293 | |
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| 294 | <A NAME="inc()"><!-- --></A><H3> |
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| 295 | inc</H3> |
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| 296 | <PRE> |
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| 297 | public void <B>inc</B>()</PRE> |
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| 298 | <DL> |
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| 299 | <DD>Inc metrics by one |
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| 300 | <P> |
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| 301 | <DD><DL> |
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| 302 | </DL> |
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| 303 | </DD> |
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| 304 | </DL> |
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| 305 | <HR> |
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| 306 | |
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| 307 | <A NAME="pushMetric(org.apache.hadoop.metrics.MetricsRecord)"><!-- --></A><H3> |
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| 308 | pushMetric</H3> |
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| 309 | <PRE> |
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| 310 | public void <B>pushMetric</B>(<A HREF="../../../../../org/apache/hadoop/metrics/MetricsRecord.html" title="interface in org.apache.hadoop.metrics">MetricsRecord</A> mr)</PRE> |
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| 311 | <DL> |
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| 312 | <DD>Push the delta metrics to the mr. |
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| 313 | The delta is since the last push/interval. |
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| 314 | |
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| 315 | Note this does NOT push to JMX |
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| 316 | (JMX gets the info via <A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsTimeVaryingLong.html#previousIntervalValue"><CODE>previousIntervalValue</CODE></A> |
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| 317 | <P> |
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| 318 | <DD><DL> |
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| 319 | <DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsBase.html#pushMetric(org.apache.hadoop.metrics.MetricsRecord)">pushMetric</A></CODE> in class <CODE><A HREF="../../../../../org/apache/hadoop/metrics/util/MetricsBase.html" title="class in org.apache.hadoop.metrics.util">MetricsBase</A></CODE></DL> |
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| 320 | </DD> |
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| 321 | <DD><DL> |
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| 322 | <DT><B>Parameters:</B><DD><CODE>mr</CODE> - </DL> |
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| 323 | </DD> |
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| 324 | </DL> |
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| 325 | <HR> |
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| 327 | <A NAME="getPreviousIntervalValue()"><!-- --></A><H3> |
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| 328 | getPreviousIntervalValue</H3> |
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| 329 | <PRE> |
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| 330 | public long <B>getPreviousIntervalValue</B>()</PRE> |
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| 331 | <DL> |
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| 332 | <DD>The Value at the Previous interval |
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| 333 | <P> |
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| 334 | <DD><DL> |
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| 335 | |
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| 336 | <DT><B>Returns:</B><DD>prev interval value</DL> |
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| 337 | </DD> |
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| 339 | <HR> |
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| 341 | <A NAME="getCurrentIntervalValue()"><!-- --></A><H3> |
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| 342 | getCurrentIntervalValue</H3> |
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| 343 | <PRE> |
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| 344 | public long <B>getCurrentIntervalValue</B>()</PRE> |
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| 345 | <DL> |
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| 346 | <DD>The Value at the current interval |
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| 347 | <P> |
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| 348 | <DD><DL> |
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| 349 | |
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| 350 | <DT><B>Returns:</B><DD>prev interval value</DL> |
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| 351 | </DD> |
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