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Supported forms for mount paths are:
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Normal single-host (these are unchanged)
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Multiple replicated hosts, same path:
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<path> host1,host2,hostn:/path/path
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This will do an initial RPC call with a .1 second timeout to all hosts to
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find best match. If this fails, it will try a 10 second timeout, if this
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fails it takes the first host.
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Multiple hosts, some with same path, some with another
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<path> host1,host2:/blah host3:/some/other/path
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Multiple replicated hosts, different (potentially) paths:
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<path> host1:/path/pathA host2:/path/pathB
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Same as above with RPC calls..
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Mutliple weighted, replicated hosts same path:
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<path> host1(5),host2(6),host3(1):/path/path
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Will pick lowest weighted host that responds to RPC call.
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RPC time is not counted, only whether the call got a reply
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at all. Initially does a .1 second timeout, if all hosts
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fail this, moves to 10 second timeout. If one of the hosts
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is localhost, the automounter will choose that regardless of
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its weight. (This has been done to remain compatible with
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Multiple weighted, replicated hosts different (potentially)
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<path> host1(3):/path/pathA host2(5):/path/pathB
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Same as above with RPC calls/weighting.
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Anything else is questionable and unsupported, but these
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variations will also work:
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<path> host1(3),host:/blah
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Unsupported and I don't know why you would use this, but will
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work. Weighted host always gets precedence if it responds to RPC
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Anything else, I ain't making no promises.