Is there a way to detect a dup key error when inserting documents to shard?

[Feng Liyuan]

I inserted a duplicate key into shard and got an error, but IsDup(err) function could not perform correctly.
I printed the error

&mgo.LastError{
    Err:"error inserting 1 documents to shard ro_s_1_6:ro_s_1_6/192.168.1.221:27018,192.168.1.222:27018 at version 6|115||52c1171d330bbae1e42d97c5 :: caused by :: E11000 duplicate key error index: ro_s_1.rs.$_id_  dup key: { : \"77g1ej:\" }",
    Code:16460,
    N:0,
    Waited:0,
    FSyncFiles:0,
    WTimeout:false,
    UpdatedExisting:false,
    UpsertedId:interface {}(nil)
}

The code is 16460, not 11000 11001 12582. I searched this code it says that's an error inserting documents to shard.

[Gustavo Niemeyer]

Thanks for the report. I'll enhance the IsDup function to catch these cases too.

Sorry for the trouble.

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gustavo @ http://niemeyer.net

[Feng Liyuan]

Thanks for your quick reply. Hope to see your update.

[Feng Liyuan]

Hi, sorry to bother u again.
Do u have any clue to deal with this issue, or anything I can do to workaround it? Our mongo will be full soon, so we really need this feature for shard.

On Monday, January 13, 2014 7:50:09 PM UTC+8, Gustavo Niemeyer wrote:

[Gustavo Niemeyer]

To workaround the issue sooner, just check the error yourself:

if lerr, ok := err.(*mgo.LastError); ok && lerr.Code == 16460 &&
strings.Contains(lerr.Err, " E11000 ") {
// ... key is duplicated in a shard.