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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-10641) Introduce Coordination Engine
Date Thu, 29 May 2014 20:55:03 GMT
Konstantin Shvachko created HADOOP-10641:
--------------------------------------------

             Summary: Introduce Coordination Engine
                 Key: HADOOP-10641
                 URL: https://issues.apache.org/jira/browse/HADOOP-10641
             Project: Hadoop Common
          Issue Type: New Feature
    Affects Versions: 3.0.0
            Reporter: Konstantin Shvachko


Coordination Engine (CE) is a system, which allows to agree on a sequence of events in a distributed
system. In order to be reliable CE should be distributed by itself.
Coordination Engine can be based on different algorithms (paxos, raft, 2PC, zab) and have
different implementations, depending on use cases, reliability, availability, and performance
requirements.
CE should have a common API, so that it could serve as a pluggable component in different
projects. The immediate beneficiaries are HDFS (HDFS-6469) and HBase (HBASE-10909).
First implementation is proposed to be based on ZooKeeper.



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