I haven't use the $geoNear in my query instead I have used $near. But this is showing the error of $geoNear. And the error create the interruption in processing the query. Not always but once in every hour.
I have used '2dsphere' index already---

scheduleRideSchema.index({ source: '2dsphere' });
 
{{ $or: [{ $or: [{ $and: [{ pickupStart:

{ $gte: pickupStartTime }

}, { pickupEnd:

{ $lte: pickupStartTime }

}] },{ $and: [{ pickupStart:

{ $gte: pickupStartTime }

}, { pickupEnd:

{ $lte: pickupEndTime }

}] }]}, { $or: [{ $and: [{ pickupStart:

{ $lte: pickupStartTime }

}, { pickupEnd:

{ $gte: pickupStartTime }

}] },{ $and: [{ pickupStart:

{ $lte: pickupStartTime }

}, { pickupEnd:

{ $gte: pickupEndTime }

}] }]}]}, { $and:[{ source:{ $near:{ $geometry:

{ type: "Point", coordinates: sourceCord.coordinates }

, $maxDistance: 4000}}},{$and:[

{cancel:false}

,

{ complete:false}

]}]}]});}}