Details
Description
I attempted to execute the following against a sharded cluster:
(byebug) client.use(:admin).command(getParameter: 1, featureCompatibilityVersion: 1)
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*** Mongo::Error::OperationFailure Exception: no option found to get ()
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Shell version:
speed% mongo --port 29400
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MongoDB shell version v3.6.9
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connecting to: mongodb://127.0.0.1:29400/
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Implicit session: session { "id" : UUID("fcdf70ad-6fb0-4e84-b880-2d762d4030fb") }
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MongoDB server version: 4.0.4-92-ga3ed66ac2e
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WARNING: shell and server versions do not match
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Server has startup warnings:
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2019-01-16T14:42:39.279-0500 I CONTROL [main]
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2019-01-16T14:42:39.279-0500 I CONTROL [main] ** WARNING: Access control is not enabled for the database.
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2019-01-16T14:42:39.279-0500 I CONTROL [main] ** Read and write access to data and configuration is unrestricted.
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2019-01-16T14:42:39.279-0500 I CONTROL [main]
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2019-01-16T14:42:39.279-0500 I CONTROL [main] ** WARNING: This server is bound to localhost.
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2019-01-16T14:42:39.279-0500 I CONTROL [main] ** Remote systems will be unable to connect to this server.
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2019-01-16T14:42:39.279-0500 I CONTROL [main] ** Start the server with --bind_ip <address> to specify which IP
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2019-01-16T14:42:39.279-0500 I CONTROL [main] ** addresses it should serve responses from, or with --bind_ip_all to
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2019-01-16T14:42:39.279-0500 I CONTROL [main] ** bind to all interfaces. If this behavior is desired, start the
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2019-01-16T14:42:39.279-0500 I CONTROL [main] ** server with --bind_ip 127.0.0.1 to disable this warning.
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2019-01-16T14:42:39.279-0500 I CONTROL [main]
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mongos> db.adminCommand( { getParameter: 1, featureCompatibilityVersion: 1 } )
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{
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"ok" : 0,
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"errmsg" : "no option found to get",
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"operationTime" : Timestamp(1547668183, 1),
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"$clusterTime" : {
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"clusterTime" : Timestamp(1547668183, 1),
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"signature" : {
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"hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
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"keyId" : NumberLong(0)
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}
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}
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}
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The phrase "no option found to get" is confusing for the following reasons:
1. I requested to get a parameter, the error message talks about an option.
2. "no option" seems to imply that I requested several, whereas I requested only one.
3. Can I insert an option like I insert data, so that later this option would be "found"?
A more clear message to me would be something like the following:
- Unrecognized parameter "featureCompatibilityVersion"
- Unknown parameter "featureCompatibilityVersion"
A better yet message would say something like:
- Parameter "featureCompatibilityVersion" is not supported for mongos
Also, this error message came without a numeric code.
Attachments
Issue Links
- is related to
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SERVER-39052 Reading and writing FCV is asymmetric in sharded clusters
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- Backlog
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