Socket hb#750

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vinceyang wants to merge 9 commits intonathanmarz:masterfrom

vinceyang:socket-hb

Commits on Sep 17, 2013

fixed #551, when rebalance ,remove out of date assignment
xiaoqing.yangxq
committed

Commits on Nov 19, 2013

nimbus support worker heartbeat
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woker heartbeat to nimbus though socket
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add workerHeartbeat method
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add NIMBUS_RECOVER_HEARTBEART_SECS conf
xiaoqing.yangxq
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modify SYSTEM_EXECUTOR_ID type for thrift transfer
xiaoqing.yangxq
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add workerHeartbeat method
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thrift generate code commit
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worker heartbeat proxy
xiaoqing.yangxq
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