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16 lines
750 B
Text
16 lines
750 B
Text
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What is Keepalived ?
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The main goal of the keepalived project is to add a strong & robust
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keepalive facility to the Linux Virtual Server project. This project
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is written in C with multilayer TCP/IP stack checks. Keepalived
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implements a framework based on three family checks: Layer3, Layer4
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& Layer5/7.
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This framework gives the daemon the ability of checking a LVS server
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pool states. When one of the server of the LVS server pool is down,
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keepalived informs the linux kernel via a setsockopt call to remove
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this server entrie from the LVS topology. In addition keepalived
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implements an independent VRRPv2 stack to handle director failover.
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So in short keepalived is a userspace daemon for LVS cluster nodes
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healthchecks and LVS directors failover.
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