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Posted to common-dev@hadoop.apache.org by "Konstantin Shvachko (JIRA)" <ji...@apache.org> on 2014/05/29 22:55:03 UTC

[jira] [Created] (HADOOP-10641) Introduce Coordination Engine

Konstantin Shvachko created HADOOP-10641:
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             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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