I need to integrate miles/distance search in my website and I am using MongoDB geospatial indexes, however, I am getting some and unable to resolve. below are my schema and command I am using…
=> db.properties.findOne({},{address:1})
{
"_id" : ObjectId("585b909c870d907845b695fd"),
"address" : {
"postcode" : "W1D 1NN",
"address1" : "Essence",
"address2" : "United Kingdom House",
"county" : "London",
"town" : "LONDON",
"latitude" : "51.5160229933117",
"longitude" : "-0.139088472429092",
"house_number" : "114",
"location" : {
"type" : "Point",
"coordinates" : [
-0.139088472429092,
51.5160229933117
]
}
}
}
Below is my indexes…
=> db.properties.getIndexes()
[
{
"v" : 1,
"key" : {
"_id" : 1
},
"name" : "_id_",
"ns" : "cherrydoorsync.properties"
},
{
"v" : 1,
"key" : {
"address.location.coordinates" : "2d"
},
"name" : "address.location.coordinates_2d",
"ns" : "cherrydoorsync.properties"
}
]
However, when I run following command in mongo shell, I am getting an error…
db.properties.aggregate([
{
$geoNear: {
near: { type: "Point", coordinates: [ -2.94379156655216, 54.8905641133194 ] },
distanceField: "dist.calculated",
maxDistance: 2,
includeLocs: "dist.location",
num: 5
}
}
])
error:
assert: command failed: {
"ok" : 0,
"errmsg" : "geoNear command failed: { ok: 0.0, errmsg: \"The featureCompatibilityVersion must be 3.4 to use collation. See
http://dochub.mongodb.org/core/3.4-feature-compatibility.\", code: 72,
codeName: \"InvalidOptions\" }",
"code" : 16604,
"codeName" : "Location16604"
} : aggregate failed
_getErrorWithCode@src/mongo/shell/utils.js:25:13
doassert@src/mongo/shell/assert.js:16:14
assert.commandWorked@src/mongo/shell/assert.js:370:5
DBCollection.prototype.aggregate@src/mongo/shell/collection.js:1319:5
@(shell):1:12017-01-20T13:41:27.914+0530 E QUERY [main] Error: command failed: { "ok" : 0, "errmsg" : "geoNear command failed: { ok: 0.0, errmsg: \"The featureCompatibilityVersion must be 3.4 to use collation. See
http://dochub.mongodb.org/core/3.4-feature-compatibility.\", code: 72,
codeName: \"InvalidOptions\" }",
"code" : 16604,
"codeName" : "Location16604"
} : aggregate failed :
_getErrorWithCode@src/mongo/shell/utils.js:25:13
doassert@src/mongo/shell/assert.js:16:14
assert.commandWorked@src/mongo/shell/assert.js:370:5
DBCollection.prototype.aggregate@src/mongo/shell/collection.js:1319:5
@(shell):1:1
There is the link (http://dochub.mongodb.org/core/3.4-feature-compatibility) in the error message and I follow that link, it suggests to set the setFeatureCompatibilityVersion to "3.4".
, I run that command and again getting some other error
> db.adminCommand( { setFeatureCompatibilityVersion: <"3.4" } )
2017-01-20T13:45:39.023+0530 E QUERY [main] SyntaxError: expected expression, got '<' @(shell):1:51
Please help me solve this error.
Best Answer
Need
db.adminCommand( { setFeatureCompatibilityVersion: "3.4" } )