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6 | <TITLE> |
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7 | Uses of Interface org.apache.hadoop.metrics.MetricsContext (Hadoop 0.20.1 API) |
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80 | |
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81 | <HR> |
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82 | <CENTER> |
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83 | <H2> |
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84 | <B>Uses of Interface<br>org.apache.hadoop.metrics.MetricsContext</B></H2> |
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85 | </CENTER> |
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86 | |
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87 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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88 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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89 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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90 | Packages that use <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A></FONT></TH> |
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91 | </TR> |
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92 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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93 | <TD><A HREF="#org.apache.hadoop.ipc.metrics"><B>org.apache.hadoop.ipc.metrics</B></A></TD> |
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94 | <TD> </TD> |
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95 | </TR> |
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96 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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97 | <TD><A HREF="#org.apache.hadoop.metrics"><B>org.apache.hadoop.metrics</B></A></TD> |
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98 | <TD>This package defines an API for reporting performance metric information. </TD> |
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99 | </TR> |
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100 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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101 | <TD><A HREF="#org.apache.hadoop.metrics.file"><B>org.apache.hadoop.metrics.file</B></A></TD> |
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102 | <TD>Implementation of the metrics package that writes the metrics to a file. </TD> |
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103 | </TR> |
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104 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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105 | <TD><A HREF="#org.apache.hadoop.metrics.ganglia"><B>org.apache.hadoop.metrics.ganglia</B></A></TD> |
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106 | <TD>Implementation of the metrics package that sends metric data to |
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107 | <a href="http://ganglia.sourceforge.net/">Ganglia</a>. </TD> |
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108 | </TR> |
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109 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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110 | <TD><A HREF="#org.apache.hadoop.metrics.jvm"><B>org.apache.hadoop.metrics.jvm</B></A></TD> |
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111 | <TD> </TD> |
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112 | </TR> |
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113 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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114 | <TD><A HREF="#org.apache.hadoop.metrics.spi"><B>org.apache.hadoop.metrics.spi</B></A></TD> |
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115 | <TD>The Service Provider Interface for the Metrics API. </TD> |
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116 | </TR> |
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117 | </TABLE> |
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118 | |
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119 | <P> |
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120 | <A NAME="org.apache.hadoop.ipc.metrics"><!-- --></A> |
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121 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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122 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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123 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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124 | Uses of <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A> in <A HREF="../../../../../org/apache/hadoop/ipc/metrics/package-summary.html">org.apache.hadoop.ipc.metrics</A></FONT></TH> |
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125 | </TR> |
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126 | </TABLE> |
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127 | |
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128 | <P> |
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129 | |
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130 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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131 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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132 | <TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/ipc/metrics/package-summary.html">org.apache.hadoop.ipc.metrics</A> with parameters of type <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A></FONT></TH> |
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133 | </TR> |
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134 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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135 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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136 | <CODE> void</CODE></FONT></TD> |
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137 | <TD><CODE><B>RpcMetrics.</B><B><A HREF="../../../../../org/apache/hadoop/ipc/metrics/RpcMetrics.html#doUpdates(org.apache.hadoop.metrics.MetricsContext)">doUpdates</A></B>(<A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A> context)</CODE> |
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138 | |
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139 | <BR> |
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140 | Push the metrics to the monitoring subsystem on doUpdate() call.</TD> |
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141 | </TR> |
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142 | </TABLE> |
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143 | |
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144 | <P> |
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145 | <A NAME="org.apache.hadoop.metrics"><!-- --></A> |
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146 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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147 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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148 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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149 | Uses of <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A> in <A HREF="../../../../../org/apache/hadoop/metrics/package-summary.html">org.apache.hadoop.metrics</A></FONT></TH> |
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150 | </TR> |
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151 | </TABLE> |
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152 | |
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153 | <P> |
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154 | |
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155 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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156 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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157 | <TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/metrics/package-summary.html">org.apache.hadoop.metrics</A> that return <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A></FONT></TH> |
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158 | </TR> |
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159 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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160 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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161 | <CODE>static <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A></CODE></FONT></TD> |
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162 | <TD><CODE><B>MetricsUtil.</B><B><A HREF="../../../../../org/apache/hadoop/metrics/MetricsUtil.html#getContext(java.lang.String)">getContext</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> contextName)</CODE> |
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163 | |
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164 | <BR> |
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165 | </TD> |
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166 | </TR> |
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167 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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168 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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169 | <CODE> <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A></CODE></FONT></TD> |
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170 | <TD><CODE><B>ContextFactory.</B><B><A HREF="../../../../../org/apache/hadoop/metrics/ContextFactory.html#getContext(java.lang.String)">getContext</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> contextName)</CODE> |
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171 | |
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172 | <BR> |
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173 | </TD> |
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174 | </TR> |
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175 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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176 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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177 | <CODE>static <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A></CODE></FONT></TD> |
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178 | <TD><CODE><B>MetricsUtil.</B><B><A HREF="../../../../../org/apache/hadoop/metrics/MetricsUtil.html#getContext(java.lang.String, java.lang.String)">getContext</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> refName, |
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179 | <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> contextName)</CODE> |
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180 | |
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181 | <BR> |
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182 | Utility method to return the named context.</TD> |
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183 | </TR> |
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184 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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185 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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186 | <CODE> <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A></CODE></FONT></TD> |
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187 | <TD><CODE><B>ContextFactory.</B><B><A HREF="../../../../../org/apache/hadoop/metrics/ContextFactory.html#getContext(java.lang.String, java.lang.String)">getContext</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> refName, |
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188 | <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> contextName)</CODE> |
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189 | |
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190 | <BR> |
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191 | Returns the named MetricsContext instance, constructing it if necessary |
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192 | using the factory's current configuration attributes.</TD> |
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193 | </TR> |
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194 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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195 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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196 | <CODE>static <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A></CODE></FONT></TD> |
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197 | <TD><CODE><B>ContextFactory.</B><B><A HREF="../../../../../org/apache/hadoop/metrics/ContextFactory.html#getNullContext(java.lang.String)">getNullContext</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> contextName)</CODE> |
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198 | |
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199 | <BR> |
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200 | Returns a "null" context - one which does nothing.</TD> |
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201 | </TR> |
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202 | </TABLE> |
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203 | |
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204 | <P> |
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205 | |
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206 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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207 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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208 | <TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/metrics/package-summary.html">org.apache.hadoop.metrics</A> with parameters of type <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A></FONT></TH> |
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209 | </TR> |
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210 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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211 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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212 | <CODE>static <A HREF="../../../../../org/apache/hadoop/metrics/MetricsRecord.html" title="interface in org.apache.hadoop.metrics">MetricsRecord</A></CODE></FONT></TD> |
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213 | <TD><CODE><B>MetricsUtil.</B><B><A HREF="../../../../../org/apache/hadoop/metrics/MetricsUtil.html#createRecord(org.apache.hadoop.metrics.MetricsContext, java.lang.String)">createRecord</A></B>(<A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A> context, |
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214 | <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> recordName)</CODE> |
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215 | |
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216 | <BR> |
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217 | Utility method to create and return new metrics record instance within the |
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218 | given context.</TD> |
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219 | </TR> |
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220 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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221 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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222 | <CODE> void</CODE></FONT></TD> |
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223 | <TD><CODE><B>Updater.</B><B><A HREF="../../../../../org/apache/hadoop/metrics/Updater.html#doUpdates(org.apache.hadoop.metrics.MetricsContext)">doUpdates</A></B>(<A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A> context)</CODE> |
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224 | |
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225 | <BR> |
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226 | Timer-based call-back from the metric library.</TD> |
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227 | </TR> |
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228 | </TABLE> |
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229 | |
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230 | <P> |
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231 | <A NAME="org.apache.hadoop.metrics.file"><!-- --></A> |
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232 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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233 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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234 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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235 | Uses of <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A> in <A HREF="../../../../../org/apache/hadoop/metrics/file/package-summary.html">org.apache.hadoop.metrics.file</A></FONT></TH> |
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236 | </TR> |
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237 | </TABLE> |
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238 | |
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239 | <P> |
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240 | |
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241 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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242 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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243 | <TH ALIGN="left" COLSPAN="2">Classes in <A HREF="../../../../../org/apache/hadoop/metrics/file/package-summary.html">org.apache.hadoop.metrics.file</A> that implement <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A></FONT></TH> |
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244 | </TR> |
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245 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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246 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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247 | <CODE> class</CODE></FONT></TD> |
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248 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/file/FileContext.html" title="class in org.apache.hadoop.metrics.file">FileContext</A></B></CODE> |
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249 | |
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250 | <BR> |
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251 | Metrics context for writing metrics to a file.<p/> |
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252 | |
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253 | This class is configured by setting ContextFactory attributes which in turn |
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254 | are usually configured through a properties file.</TD> |
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255 | </TR> |
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256 | </TABLE> |
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257 | |
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258 | <P> |
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259 | <A NAME="org.apache.hadoop.metrics.ganglia"><!-- --></A> |
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260 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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261 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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262 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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263 | Uses of <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A> in <A HREF="../../../../../org/apache/hadoop/metrics/ganglia/package-summary.html">org.apache.hadoop.metrics.ganglia</A></FONT></TH> |
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264 | </TR> |
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265 | </TABLE> |
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266 | |
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267 | <P> |
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268 | |
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269 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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270 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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271 | <TH ALIGN="left" COLSPAN="2">Classes in <A HREF="../../../../../org/apache/hadoop/metrics/ganglia/package-summary.html">org.apache.hadoop.metrics.ganglia</A> that implement <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A></FONT></TH> |
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272 | </TR> |
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273 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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274 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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275 | <CODE> class</CODE></FONT></TD> |
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276 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/ganglia/GangliaContext.html" title="class in org.apache.hadoop.metrics.ganglia">GangliaContext</A></B></CODE> |
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277 | |
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278 | <BR> |
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279 | Context for sending metrics to Ganglia.</TD> |
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280 | </TR> |
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281 | </TABLE> |
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282 | |
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283 | <P> |
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284 | <A NAME="org.apache.hadoop.metrics.jvm"><!-- --></A> |
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285 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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286 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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287 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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288 | Uses of <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A> in <A HREF="../../../../../org/apache/hadoop/metrics/jvm/package-summary.html">org.apache.hadoop.metrics.jvm</A></FONT></TH> |
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289 | </TR> |
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290 | </TABLE> |
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291 | |
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292 | <P> |
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293 | |
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294 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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295 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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296 | <TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/metrics/jvm/package-summary.html">org.apache.hadoop.metrics.jvm</A> with parameters of type <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A></FONT></TH> |
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297 | </TR> |
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298 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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299 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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300 | <CODE> void</CODE></FONT></TD> |
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301 | <TD><CODE><B>JvmMetrics.</B><B><A HREF="../../../../../org/apache/hadoop/metrics/jvm/JvmMetrics.html#doUpdates(org.apache.hadoop.metrics.MetricsContext)">doUpdates</A></B>(<A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A> context)</CODE> |
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302 | |
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303 | <BR> |
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304 | This will be called periodically (with the period being configuration |
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305 | dependent).</TD> |
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306 | </TR> |
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307 | </TABLE> |
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308 | |
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309 | <P> |
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310 | <A NAME="org.apache.hadoop.metrics.spi"><!-- --></A> |
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311 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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312 | <TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"> |
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313 | <TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"> |
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314 | Uses of <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A> in <A HREF="../../../../../org/apache/hadoop/metrics/spi/package-summary.html">org.apache.hadoop.metrics.spi</A></FONT></TH> |
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315 | </TR> |
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316 | </TABLE> |
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317 | |
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318 | <P> |
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319 | |
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320 | <TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""> |
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321 | <TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"> |
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322 | <TH ALIGN="left" COLSPAN="2">Classes in <A HREF="../../../../../org/apache/hadoop/metrics/spi/package-summary.html">org.apache.hadoop.metrics.spi</A> that implement <A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html" title="interface in org.apache.hadoop.metrics">MetricsContext</A></FONT></TH> |
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323 | </TR> |
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324 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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325 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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326 | <CODE> class</CODE></FONT></TD> |
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327 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/spi/AbstractMetricsContext.html" title="class in org.apache.hadoop.metrics.spi">AbstractMetricsContext</A></B></CODE> |
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328 | |
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329 | <BR> |
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330 | The main class of the Service Provider Interface.</TD> |
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331 | </TR> |
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332 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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333 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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334 | <CODE> class</CODE></FONT></TD> |
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335 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/spi/CompositeContext.html" title="class in org.apache.hadoop.metrics.spi">CompositeContext</A></B></CODE> |
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336 | |
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337 | <BR> |
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338 | </TD> |
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339 | </TR> |
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340 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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341 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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342 | <CODE> class</CODE></FONT></TD> |
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343 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/spi/NullContext.html" title="class in org.apache.hadoop.metrics.spi">NullContext</A></B></CODE> |
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344 | |
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345 | <BR> |
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346 | Null metrics context: a metrics context which does nothing.</TD> |
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347 | </TR> |
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348 | <TR BGCOLOR="white" CLASS="TableRowColor"> |
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349 | <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"> |
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350 | <CODE> class</CODE></FONT></TD> |
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351 | <TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/spi/NullContextWithUpdateThread.html" title="class in org.apache.hadoop.metrics.spi">NullContextWithUpdateThread</A></B></CODE> |
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352 | |
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353 | <BR> |
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354 | A null context which has a thread calling |
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355 | periodically when monitoring is started.</TD> |
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356 | </TR> |
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