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7Uses of Interface org.apache.hadoop.metrics.Updater (Hadoop 0.20.1 API)
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83<H2>
84<B>Uses of Interface<br>org.apache.hadoop.metrics.Updater</B></H2>
85</CENTER>
86
87<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
88<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
89<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
90Packages that use <A HREF="../../../../../org/apache/hadoop/metrics/Updater.html" title="interface in org.apache.hadoop.metrics">Updater</A></FONT></TH>
91</TR>
92<TR BGCOLOR="white" CLASS="TableRowColor">
93<TD><A HREF="#org.apache.hadoop.ipc.metrics"><B>org.apache.hadoop.ipc.metrics</B></A></TD>
94<TD>&nbsp;&nbsp;</TD>
95</TR>
96<TR BGCOLOR="white" CLASS="TableRowColor">
97<TD><A HREF="#org.apache.hadoop.metrics"><B>org.apache.hadoop.metrics</B></A></TD>
98<TD>This package defines an API for reporting performance metric information.&nbsp;</TD>
99</TR>
100<TR BGCOLOR="white" CLASS="TableRowColor">
101<TD><A HREF="#org.apache.hadoop.metrics.jvm"><B>org.apache.hadoop.metrics.jvm</B></A></TD>
102<TD>&nbsp;&nbsp;</TD>
103</TR>
104<TR BGCOLOR="white" CLASS="TableRowColor">
105<TD><A HREF="#org.apache.hadoop.metrics.spi"><B>org.apache.hadoop.metrics.spi</B></A></TD>
106<TD>The Service Provider Interface for the Metrics API.&nbsp;</TD>
107</TR>
108</TABLE>
109&nbsp;
110<P>
111<A NAME="org.apache.hadoop.ipc.metrics"><!-- --></A>
112<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
113<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
114<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
115Uses of <A HREF="../../../../../org/apache/hadoop/metrics/Updater.html" title="interface in org.apache.hadoop.metrics">Updater</A> in <A HREF="../../../../../org/apache/hadoop/ipc/metrics/package-summary.html">org.apache.hadoop.ipc.metrics</A></FONT></TH>
116</TR>
117</TABLE>
118&nbsp;
119<P>
120
121<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
122<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
123<TH ALIGN="left" COLSPAN="2">Classes in <A HREF="../../../../../org/apache/hadoop/ipc/metrics/package-summary.html">org.apache.hadoop.ipc.metrics</A> that implement <A HREF="../../../../../org/apache/hadoop/metrics/Updater.html" title="interface in org.apache.hadoop.metrics">Updater</A></FONT></TH>
124</TR>
125<TR BGCOLOR="white" CLASS="TableRowColor">
126<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
127<CODE>&nbsp;class</CODE></FONT></TD>
128<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/ipc/metrics/RpcMetrics.html" title="class in org.apache.hadoop.ipc.metrics">RpcMetrics</A></B></CODE>
129
130<BR>
131&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This class is for maintaining  the various RPC statistics
132 and publishing them through the metrics interfaces.</TD>
133</TR>
134</TABLE>
135&nbsp;
136<P>
137<A NAME="org.apache.hadoop.metrics"><!-- --></A>
138<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
139<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
140<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
141Uses of <A HREF="../../../../../org/apache/hadoop/metrics/Updater.html" title="interface in org.apache.hadoop.metrics">Updater</A> in <A HREF="../../../../../org/apache/hadoop/metrics/package-summary.html">org.apache.hadoop.metrics</A></FONT></TH>
142</TR>
143</TABLE>
144&nbsp;
145<P>
146
147<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
148<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
149<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/Updater.html" title="interface in org.apache.hadoop.metrics">Updater</A></FONT></TH>
150</TR>
151<TR BGCOLOR="white" CLASS="TableRowColor">
152<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
153<CODE>&nbsp;void</CODE></FONT></TD>
154<TD><CODE><B>MetricsContext.</B><B><A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html#registerUpdater(org.apache.hadoop.metrics.Updater)">registerUpdater</A></B>(<A HREF="../../../../../org/apache/hadoop/metrics/Updater.html" title="interface in org.apache.hadoop.metrics">Updater</A>&nbsp;updater)</CODE>
155
156<BR>
157&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Registers a callback to be called at regular time intervals, as
158 determined by the implementation-class specific configuration.</TD>
159</TR>
160<TR BGCOLOR="white" CLASS="TableRowColor">
161<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
162<CODE>&nbsp;void</CODE></FONT></TD>
163<TD><CODE><B>MetricsContext.</B><B><A HREF="../../../../../org/apache/hadoop/metrics/MetricsContext.html#unregisterUpdater(org.apache.hadoop.metrics.Updater)">unregisterUpdater</A></B>(<A HREF="../../../../../org/apache/hadoop/metrics/Updater.html" title="interface in org.apache.hadoop.metrics">Updater</A>&nbsp;updater)</CODE>
164
165<BR>
166&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Removes a callback, if it exists.</TD>
167</TR>
168</TABLE>
169&nbsp;
170<P>
171<A NAME="org.apache.hadoop.metrics.jvm"><!-- --></A>
172<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
173<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
174<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
175Uses of <A HREF="../../../../../org/apache/hadoop/metrics/Updater.html" title="interface in org.apache.hadoop.metrics">Updater</A> in <A HREF="../../../../../org/apache/hadoop/metrics/jvm/package-summary.html">org.apache.hadoop.metrics.jvm</A></FONT></TH>
176</TR>
177</TABLE>
178&nbsp;
179<P>
180
181<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
182<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
183<TH ALIGN="left" COLSPAN="2">Classes in <A HREF="../../../../../org/apache/hadoop/metrics/jvm/package-summary.html">org.apache.hadoop.metrics.jvm</A> that implement <A HREF="../../../../../org/apache/hadoop/metrics/Updater.html" title="interface in org.apache.hadoop.metrics">Updater</A></FONT></TH>
184</TR>
185<TR BGCOLOR="white" CLASS="TableRowColor">
186<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
187<CODE>&nbsp;class</CODE></FONT></TD>
188<TD><CODE><B><A HREF="../../../../../org/apache/hadoop/metrics/jvm/JvmMetrics.html" title="class in org.apache.hadoop.metrics.jvm">JvmMetrics</A></B></CODE>
189
190<BR>
191&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Singleton class which reports Java Virtual Machine metrics to the metrics API.</TD>
192</TR>
193</TABLE>
194&nbsp;
195<P>
196<A NAME="org.apache.hadoop.metrics.spi"><!-- --></A>
197<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
198<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
199<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
200Uses of <A HREF="../../../../../org/apache/hadoop/metrics/Updater.html" title="interface in org.apache.hadoop.metrics">Updater</A> in <A HREF="../../../../../org/apache/hadoop/metrics/spi/package-summary.html">org.apache.hadoop.metrics.spi</A></FONT></TH>
201</TR>
202</TABLE>
203&nbsp;
204<P>
205
206<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
207<TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor">
208<TH ALIGN="left" COLSPAN="2">Methods in <A HREF="../../../../../org/apache/hadoop/metrics/spi/package-summary.html">org.apache.hadoop.metrics.spi</A> with parameters of type <A HREF="../../../../../org/apache/hadoop/metrics/Updater.html" title="interface in org.apache.hadoop.metrics">Updater</A></FONT></TH>
209</TR>
210<TR BGCOLOR="white" CLASS="TableRowColor">
211<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
212<CODE>&nbsp;void</CODE></FONT></TD>
213<TD><CODE><B>CompositeContext.</B><B><A HREF="../../../../../org/apache/hadoop/metrics/spi/CompositeContext.html#registerUpdater(org.apache.hadoop.metrics.Updater)">registerUpdater</A></B>(<A HREF="../../../../../org/apache/hadoop/metrics/Updater.html" title="interface in org.apache.hadoop.metrics">Updater</A>&nbsp;updater)</CODE>
214
215<BR>
216&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
217</TR>
218<TR BGCOLOR="white" CLASS="TableRowColor">
219<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
220<CODE>&nbsp;void</CODE></FONT></TD>
221<TD><CODE><B>AbstractMetricsContext.</B><B><A HREF="../../../../../org/apache/hadoop/metrics/spi/AbstractMetricsContext.html#registerUpdater(org.apache.hadoop.metrics.Updater)">registerUpdater</A></B>(<A HREF="../../../../../org/apache/hadoop/metrics/Updater.html" title="interface in org.apache.hadoop.metrics">Updater</A>&nbsp;updater)</CODE>
222
223<BR>
224&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Registers a callback to be called at time intervals determined by
225 the configuration.</TD>
226</TR>
227<TR BGCOLOR="white" CLASS="TableRowColor">
228<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
229<CODE>&nbsp;void</CODE></FONT></TD>
230<TD><CODE><B>CompositeContext.</B><B><A HREF="../../../../../org/apache/hadoop/metrics/spi/CompositeContext.html#unregisterUpdater(org.apache.hadoop.metrics.Updater)">unregisterUpdater</A></B>(<A HREF="../../../../../org/apache/hadoop/metrics/Updater.html" title="interface in org.apache.hadoop.metrics">Updater</A>&nbsp;updater)</CODE>
231
232<BR>
233&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
234</TR>
235<TR BGCOLOR="white" CLASS="TableRowColor">
236<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
237<CODE>&nbsp;void</CODE></FONT></TD>
238<TD><CODE><B>AbstractMetricsContext.</B><B><A HREF="../../../../../org/apache/hadoop/metrics/spi/AbstractMetricsContext.html#unregisterUpdater(org.apache.hadoop.metrics.Updater)">unregisterUpdater</A></B>(<A HREF="../../../../../org/apache/hadoop/metrics/Updater.html" title="interface in org.apache.hadoop.metrics">Updater</A>&nbsp;updater)</CODE>
239
240<BR>
241&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Removes a callback, if it exists.</TD>
242</TR>
243</TABLE>
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