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@@ -3,6 +3,8 @@
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The default settings in etcd should work well for installations on a local network where the average network latency is low.
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However, when using etcd across multiple data centers or over networks with high latency you may need to tweak the heartbeat interval and election timeout settings.
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+The network isn't the only source of latency. Each request and response may be impacted by slow disks on both the leader and follower. Each of these timeouts represents the total time from request to successful response from the other machine.
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### Time Parameters
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The underlying distributed consensus protocol relies on two separate time parameters to ensure that nodes can handoff leadership if one stalls or goes offline.
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Yicheng Qin