'Mongo Sharding issue - this db does not have sharding enabled

I'm trying to build a sharded cluster on mongoDB. but I have some issues when starting the db sharding or collection sharding the thing is that I've successfully added sharded hosts to the shard set. you can see it here

mongos> use admin
switched to db admin
mongos> db.runCommand( { listshards : 1 } );
{
    "shards" : [
        {
            "_id" : "rs1",
            "host" : "rs1/mongodb1:10001,mongodb2:10001,mongodb3:10001"
        },
        {
            "_id" : "rs2",
            "host" : "rs2/mongodb1:10002,mongodb2:10002,mongodb3:10002"
        },
        {
            "_id" : "rs3",
            "host" : "rs3/mongodb1:10003,mongodb2:10003,mongodb3:10003"
        }
    ],
    "ok" : 1
}

everything fine there.. also in the config db I have the db sharded as you can see here

mongos> use config
switched to db config
mongos> db.databases.find()
{ "_id" : "admin", "partitioned" : false, "primary" : "config" }
{ "_id" : "articles", "partitioned" : true, "primary" : "rs1" }

as you can see here the db articles is being partitioned and the primary host is the replica set 1...which is rs1

now... when I run sh.status...see what happens

mongos> use articles
mongos> sh.status()
printShardingStatus: this db does not have sharding enabled. be sure you are connecting to a mongos from the shell and not to a mongod.

Also I have a collection sharded as you can see here

mongos> use articles switched to db articles 
mongos> sh.shardCollection("articles.zip",{"id_":1}) { "ok" : 0, "errmsg" : "already sharded" }

I don't know why this is happening since everything is fine...

also the db is not being partitioned... I mean I dont have any data on rs2 or rs3... so it is clearly not working..

mongodb


Solution 1:[1]

This problem is Solved.. this was caused due to a missconfiguration of a replica Set.. the third node on rs1 was not correctly set.. so be aware when you get this error

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Diego Velez

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