source: proiecte/HadoopJUnit/hadoop-0.20.1/docs/api/org/apache/hadoop/mapred/JobHistory.HistoryCleaner.html @ 120

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7JobHistory.HistoryCleaner (Hadoop 0.20.1 API)
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91org.apache.hadoop.mapred</FONT>
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93Class JobHistory.HistoryCleaner</H2>
94<PRE>
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>
96  <IMG SRC="../../../../resources/inherit.gif" ALT="extended by "><B>org.apache.hadoop.mapred.JobHistory.HistoryCleaner</B>
97</PRE>
98<DL>
99<DT><B>All Implemented Interfaces:</B> <DD><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</A></DD>
100</DL>
101<DL>
102<DT><B>Enclosing class:</B><DD><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.html" title="class in org.apache.hadoop.mapred">JobHistory</A></DD>
103</DL>
104<HR>
105<DL>
106<DT><PRE>public static class <B>JobHistory.HistoryCleaner</B><DT>extends <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><DT>implements <A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</A></DL>
107</PRE>
108
109<P>
110Delete history files older than one month. Update master index and remove all
111 jobs older than one month. Also if a job tracker has no jobs in last one month
112 remove reference to the job tracker.
113<P>
114
115<P>
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117
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126<B>Constructor Summary</B></FONT></TH>
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129<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.HistoryCleaner.html#JobHistory.HistoryCleaner()">JobHistory.HistoryCleaner</A></B>()</CODE>
130
131<BR>
132&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</TD>
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142<B>Method Summary</B></FONT></TH>
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146<CODE>&nbsp;void</CODE></FONT></TD>
147<TD><CODE><B><A HREF="../../../../org/apache/hadoop/mapred/JobHistory.HistoryCleaner.html#run()">run</A></B>()</CODE>
148
149<BR>
150&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Cleans up history data.</TD>
151</TR>
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161</TABLE>
162&nbsp;
163<P>
164
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171<B>Constructor Detail</B></FONT></TH>
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173</TABLE>
174
175<A NAME="JobHistory.HistoryCleaner()"><!-- --></A><H3>
176JobHistory.HistoryCleaner</H3>
177<PRE>
178public <B>JobHistory.HistoryCleaner</B>()</PRE>
179<DL>
180</DL>
181
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192<A NAME="run()"><!-- --></A><H3>
193run</H3>
194<PRE>
195public void <B>run</B>()</PRE>
196<DL>
197<DD>Cleans up history data.
198<P>
199<DD><DL>
200<DT><B>Specified by:</B><DD><CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Runnable.html?is-external=true#run()" title="class or interface in java.lang">run</A></CODE> in interface <CODE><A HREF="http://java.sun.com/javase/6/docs/api/java/lang/Runnable.html?is-external=true" title="class or interface in java.lang">Runnable</A></CODE></DL>
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