Hadoop should include a general purpose distributed lock manager
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Key: HADOOP-727
URL: http://issues.apache.org/jira/browse/HADOOP-727
Project: Hadoop
Issue Type: New Feature
Components: ipc
Reporter: Sameer Paranjpye
Priority: Minor
Related to HADOOP-726. Currently, there is no good way for distributed apps
using HDFS or Map/Reduce to synchronize their operations. HDFS locking doesn't
work very well and lock management is an unnecessary burden on the namenode. In
addition, it depending on the filesystem for locking could make applications
less portable. Hadoop should implement a general purpose distributed lock
management service.
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