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From: Apache Wiki <wikidiffs@apache.org>
To: Apache Wiki <wikidiffs@apache.org>
Date: Wed, 05 May 2010 14:46:07 -0000
Message-ID: <20100505144607.424.31480@eos.apache.org>
Subject: 
 =?utf-8?q?=5BHadoop_Wiki=5D_Update_of_=22ZooKeeper/GSoCFailureDetector=22?=
 =?utf-8?q?_by_AbmarBarros?=

Dear Wiki user,

You have subscribed to a wiki page or wiki category on "Hadoop Wiki" for ch=
ange notification.

The "ZooKeeper/GSoCFailureDetector" page has been changed by AbmarBarros.
http://wiki.apache.org/hadoop/ZooKeeper/GSoCFailureDetector?action=3Ddiff&r=
ev1=3D1&rev2=3D2

--------------------------------------------------

  =3D=3D GSoC 2010: ZooKeeper Failure Detector Model =3D=3D
+ =

+  * Student: Abmar Barros
+  * Assigned mentor: Flavio Paiva Junqueira
  =

  =3D=3D Abstract =3D=3D
  =

  ZooKeeper servers detect the failure of other servers and clients by coun=
ting the number of 'ticks' for which it doesn't get a heartbeat from other =
machines. This is the 'timeout' method and it works very well; however it i=
s possible that it is too aggressive and not easily tuned for some more unu=
sual ZooKeeper installations. This project's goals are to abstract the fail=
ure detector to a separate module, to implement several failure detectors a=
nd to compare their appropriateness for ZooKeeper.
+ =

+ The full project proposal is attached to this page.
  =

  =3D=3D Roadmap =3D=3D
 =20