mirror of https://gitee.com/bigwinds/arangodb
Add two other roles we know
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Returns the role of a server in a cluster.
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The role is returned in the *role* attribute of the result.
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Possible return values for *role* are:
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- *SINGLE*: the server is a standalone server without clustering
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- *COORDINATOR*: the server is a coordinator in a cluster
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- *PRIMARY*: the server is a primary database server in a cluster
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- *SECONDARY*: the server is a secondary database server in a cluster
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- *AGENT*: the server is an agency node in a cluster
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- *UNDEFINED*: in a cluster, *UNDEFINED* is returned if the server role cannot be
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determined. On a single server, *UNDEFINED* is the only possible return
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value.
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