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Type: Bug
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Resolution: Unresolved
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Priority: Minor - P4
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None
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Affects Version/s: None
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Component/s: None
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None
mongodump 4.2 fails when --authenticationMechanism=PLAIN is used without a password. The same command line succeeded in 4.0 and earlier.
(17:01:34)(v4.2.0)-> mongodump --port 40000 --authenticationMechanism=PLAIN (17:01:34)(v4.2.0)-> mongodump --port 40000 --authenticationMechanism=PLAIN2019-09-03T17:01:37.616+0200 Failed: can't create session: could not connect to server: connection() : auth error: unable to authenticate using mechanism "PLAIN": (BadValue) Unsupported mechanism 'PLAIN' on authentication database '$external'