Sharding Status on Atlas throws an Exception (aggregate failed)

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Mehdi

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Dec 13, 2017, 4:59:07 AM12/13/17

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When running sh.status on an Atlas Cluster, I get the following Exception

mongoc-shard-00-00-wddpo(mongos-3.6.0)[mongos] mydb> sh.status()
printStackTrace@src/mongo/shell/utils.js:73:15
DBCollection.prototype.aggregate@/Users/jondoe/.mongorc.js:98:13
sh.getRecentMigrations@/Users/jondoe/.mongorc.js:1388:28
printShardingStatus@/Users/jondoe/.mongorc.js:1497:30
sh.status@src/mongo/shell/utils_sh.js:89:5
@(shell):1:1

2017-12-12T16:31:59.985+0100 E QUERY    [thread1] uncaught exception:         aggregate failed: {
  "ok": 0,
  "errmsg": "The 'cursor' option is required, except for aggregate with the explain argument",
  "code": 9,
  "codeName": "FailedToParse",
  "$clusterTime": {
    "clusterTime": Timestamp(1513092719, 27),
    "signature": {
      "hash": BinData(0, "Ok0isqe1nHr+D/I9344pcNdxapA="),
      "keyId": NumberLong("6496824061736255491")
    }
  },
  "operationTime": Timestamp(1513092719, 27)
}

Stephen Steneker

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Dec 13, 2017, 10:34:28 PM12/13/17

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On Wednesday, 13 December 2017 20:59:07 UTC+11, Mehdi wrote:

When running sh.status on an Atlas Cluster, I get the following Exception

mongoc-shard-00-00-wddpo(mongos-3.6.0)[mongos] mydb> sh.status()
printStackTrace@src/mongo/shell/utils.js:73:15
DBCollection.prototype.aggregate@/Users/jondoe/.mongorc.js:98:13
sh.getRecentMigrations@/Users/jondoe/.mongorc.js:1388:28
printShardingStatus@/Users/jondoe/.mongorc.js:1497:30
sh.status@src/mongo/shell/utils_sh.js:89:5

Hi Medhi,

Based on this stack trace it looks like you are running Mongo Hacker, which overrides sh.status() and some other built-in functions in the mongo shell. It looks like Mongo Hacker needs to be updated for full compatibility with newer MongoDB server versions.

Try starting the mongo shell without any extensions: mongo --norc.

If the sh.status() command works as expected please file an issue in the mongo-hacker project on GitHub (which is unaffiliated with MongoDB): https://github.com/TylerBrock/mongo-hacker/issues.

If you are still having issues after starting mongo with no shell extensions, please confirm the shell version reported by version().