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java.lang.Objectorg.apache.cassandra.gms.FailureDetector
public class FailureDetector
This FailureDetector is an implementation of the paper titled "The Phi Accrual Failure Detector" by Hayashibara. Check the paper and the IFailureDetector interface for details. Author : Avinash Lakshman ( alakshman@facebook.com) & Prashant Malik ( pmalik@facebook.com )
Constructor Summary | |
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FailureDetector()
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Method Summary | |
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void |
dumpInterArrivalTimes()
Dump the inter arrival times for examination if necessary. |
static IFailureDetector |
instance()
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void |
intepret(EndPoint ep)
This method is invoked by any entity wanting to interrogate the status of an endpoint. |
boolean |
isAlive(EndPoint ep)
Failure Detector's knowledge of whether a node is up or down. |
static void |
main(java.lang.String[] args)
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void |
registerFailureDetectionEventListener(IFailureDetectionEventListener listener)
Register interest for Failure Detector events. |
void |
report(EndPoint ep)
This method is invoked by the receiver of the heartbeat. |
java.lang.String |
toString()
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void |
unregisterFailureDetectionEventListener(IFailureDetectionEventListener listener)
Un-register interest for Failure Detector events. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public FailureDetector()
Method Detail |
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public static IFailureDetector instance()
public void dumpInterArrivalTimes()
dumpInterArrivalTimes
in interface FailureDetectorMBean
public boolean isAlive(EndPoint ep)
IFailureDetector
isAlive
in interface IFailureDetector
ep
- endpoint in question.
public void report(EndPoint ep)
IFailureDetector
report
in interface IFailureDetector
public void intepret(EndPoint ep)
IFailureDetector
intepret
in interface IFailureDetector
public void registerFailureDetectionEventListener(IFailureDetectionEventListener listener)
IFailureDetector
registerFailureDetectionEventListener
in interface IFailureDetector
listener
- implementation of an application provided IFailureDetectionEventListenerpublic void unregisterFailureDetectionEventListener(IFailureDetectionEventListener listener)
IFailureDetector
unregisterFailureDetectionEventListener
in interface IFailureDetector
listener
- implementation of an application provided IFailureDetectionEventListenerpublic java.lang.String toString()
toString
in class java.lang.Object
public static void main(java.lang.String[] args) throws java.lang.Throwable
java.lang.Throwable
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