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<p>@InterfaceAudience.Public
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<h1 title="Package" class="title">Package&nbsp;org.apache.hadoop.yarn.util</h1>
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<td class="colFirst"><a href="../../../../../org/apache/hadoop/yarn/util/Clock.html" title="interface in org.apache.hadoop.yarn.util">Clock</a></td>
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<div class="block">A simple clock interface that gives you time.</div>
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<td class="colFirst"><a href="../../../../../org/apache/hadoop/yarn/util/AbstractLivelinessMonitor.html" title="class in org.apache.hadoop.yarn.util">AbstractLivelinessMonitor</a>&lt;O&gt;</td>
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<div class="block">A simple liveliness monitor with which clients can register, trust the
component to monitor liveliness, get a call-back on expiry and then finally
unregister.</div>
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<div class="block">A <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/CharSequence.html?is-external=true" title="class or interface in java.lang"><code>CharSequence</code></a> appender that considers its <a href="../../../../../org/apache/hadoop/yarn/util/BoundedAppender.html#limit"><code>BoundedAppender.limit</code></a> as upper
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<td class="colFirst"><a href="../../../../../org/apache/hadoop/yarn/util/ConverterUtils.html" title="class in org.apache.hadoop.yarn.util">ConverterUtils</a></td>
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<div class="block">This class contains a set of utilities which help converting data structures
from/to 'serializableFormat' to/from hadoop/nativejava data structures.</div>
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<div class="block">A monotonic clock from some arbitrary time base in the past, counting in
milliseconds, and not affected by settimeofday or similar system clock
changes.</div>
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<div class="block">Interface class to obtain process resource usage
NOTE: This class should not be used by external users, but only by external
developers to extend and include their own process-tree implementation,
especially for platforms other than Linux and Windows.</div>
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<td class="colFirst"><a href="../../../../../org/apache/hadoop/yarn/util/SystemClock.html" title="class in org.apache.hadoop.yarn.util">SystemClock</a></td>
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<div class="block">Implementation of <a href="../../../../../org/apache/hadoop/yarn/util/Clock.html" title="interface in org.apache.hadoop.yarn.util"><code>Clock</code></a> that gives the current time from the system
clock in milliseconds.</div>
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<div class="block">Implementation of <a href="../../../../../org/apache/hadoop/yarn/util/Clock.html" title="interface in org.apache.hadoop.yarn.util"><code>Clock</code></a> that gives the current UTC time in
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