Ensure that elements are added/removed in correct order

[yeputons]

No description provided.

[joboyx]

I also encountered documents that were missing. I'm sure that the document was smartPublished from server. But the client did not receive it. I checked the documents via Mongol tool.

I'm not 100% sure that this is related to smartPublish API. But since I also encountered documents that was not received by client in correct order, maybe this is related.

---

Here's my code and logs produced from server side:

// Publications
Meteor.smartPublish("allitems", function (seed, limit) {
    console.log("### publish(" + seed + ", " + limit + ")");
    // return data with limit for infinite scrolling
    var items = Items.find({});
    var docCount = items.count();
    var itemsArray = items.fetch();
    var cursorArray = [];

    var seedRandom = Meteor.npmRequire('seedrandom');
    seedRandom(seed, {global: true});

    for(var idx, i = 0; i < limit; i++) {
        idx = Math.floor(Math.random() * docCount);
        console.log("### publish::Math.random() [" + (i+1) + "][" + itemsArray[idx]._id + "][" + idx + "]");
        cursorArray.push(
            Items.find({_id: itemsArray[idx]._id}, {limit: 1})
        );
    }

    return cursorArray;
});

As you can see from this logs from server, this document was not received by the client:

I20150512-01:40:12.941(8)? ### publish::Math.random() [14][tdR7DGk3RggHiuX7G][685]

I20150512-01:40:08.673(8)? ### publish(zzurkngpZkkJXrpaS, 10)
I20150512-01:40:08.686(8)? ### publish::Math.random() [1][rPFAPosdZXJZqSHCW][699]
I20150512-01:40:08.686(8)? ### publish::Math.random() [2][BWQdpx8YoQ2GJrATT][89]
I20150512-01:40:08.687(8)? ### publish::Math.random() [3][vDutaad3zEHcjSjWA][541]
I20150512-01:40:08.690(8)? ### publish::Math.random() [4][WMuCyqJBpvz9XNgn6][548]
I20150512-01:40:08.690(8)? ### publish::Math.random() [5][J69Xg8sTv3zbG8GYA][803]
I20150512-01:40:08.690(8)? ### publish::Math.random() [6][Bw2WSHu5y3KTLF94b][466]
I20150512-01:40:08.690(8)? ### publish::Math.random() [7][hL94tCLDFsxf39Ge3][457]
I20150512-01:40:08.690(8)? ### publish::Math.random() [8][bfAYhYN6h5M9fiYo3][632]
I20150512-01:40:08.691(8)? ### publish::Math.random() [9][4yFvTAJk7zj8qwDBn][192]
I20150512-01:40:08.691(8)? ### publish::Math.random() [10][AweG3rKyszix3cWXk][110]
I20150512-01:40:12.916(8)? ### publish(zzurkngpZkkJXrpaS, 20)
I20150512-01:40:12.938(8)? ### publish::Math.random() [1][rPFAPosdZXJZqSHCW][699]
I20150512-01:40:12.939(8)? ### publish::Math.random() [2][BWQdpx8YoQ2GJrATT][89]
I20150512-01:40:12.939(8)? ### publish::Math.random() [3][vDutaad3zEHcjSjWA][541]
I20150512-01:40:12.939(8)? ### publish::Math.random() [4][WMuCyqJBpvz9XNgn6][548]
I20150512-01:40:12.939(8)? ### publish::Math.random() [5][J69Xg8sTv3zbG8GYA][803]
I20150512-01:40:12.939(8)? ### publish::Math.random() [6][Bw2WSHu5y3KTLF94b][466]
I20150512-01:40:12.940(8)? ### publish::Math.random() [7][hL94tCLDFsxf39Ge3][457]
I20150512-01:40:12.941(8)? ### publish::Math.random() [8][bfAYhYN6h5M9fiYo3][632]
I20150512-01:40:12.941(8)? ### publish::Math.random() [9][4yFvTAJk7zj8qwDBn][192]
I20150512-01:40:12.941(8)? ### publish::Math.random() [10][AweG3rKyszix3cWXk][110]
I20150512-01:40:12.941(8)? ### publish::Math.random() [11][XQ2AhMnqrPngpST57][178]
I20150512-01:40:12.941(8)? ### publish::Math.random() [12][TedPF9Pxifsf3h3kQ][557]
I20150512-01:40:12.941(8)? ### publish::Math.random() [13][4yFvTAJk7zj8qwDBn][192]
I20150512-01:40:12.941(8)? ### publish::Math.random() [14][tdR7DGk3RggHiuX7G][685]
I20150512-01:40:12.942(8)? ### publish::Math.random() [15][vJWa9PPwMarApcxs9][813]
I20150512-01:40:12.942(8)? ### publish::Math.random() [16][ZjKXGE4kvdaewE3NP][684]
I20150512-01:40:12.942(8)? ### publish::Math.random() [17][symshYjbCmp9y3BXm][421]
I20150512-01:40:12.942(8)? ### publish::Math.random() [18][NXqpkFLbaPZecikYu][839]
I20150512-01:40:12.942(8)? ### publish::Math.random() [19][bXgg5nNkqRvh7TwAo][535]
I20150512-01:40:12.942(8)? ### publish::Math.random() [20][TJXiWe3xF4tcqACzt][84]

[yeputons]

@joboyx would you mind creating a separate issue for that? I'll definitely look into.

[yeputons]

@joboyx it'd be really useful if you can share the code that produces the error. I've tried your snippet like this and it worked correctly.