jstests/sharding/multi_coll_drop.js


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// Tests the dropping and re-adding of a collection
(function() {

    var st = new ShardingTest({name: "multidrop", shards: 1, mongos: 2});

    var mA = st.s0;
    var mB = st.s1;

    var coll = mA.getCollection('multidrop.coll');
    var collB = mB.getCollection('multidrop.coll');

    jsTestLog("Shard and split collection...");

    var admin = mA.getDB("admin");
    admin.runCommand({enableSharding: coll.getDB() + ""});
    admin.runCommand({shardCollection: coll + "", key: {_id: 1}});

    for (var i = -100; i < 100; i++) {
        admin.runCommand({split: coll + "", middle: {_id: i}});
    }

    jsTestLog("Create versioned connection for each mongos...");

    coll.find().itcount();
    collB.find().itcount();

    jsTestLog("Dropping sharded collection...");
    coll.drop();

    jsTestLog("Recreating collection...");

    admin.runCommand({shardCollection: coll + "", key: {_id: 1}});
    for (var i = -10; i < 10; i++) {
        admin.runCommand({split: coll + "", middle: {_id: i}});
    }

    jsTestLog("Retrying connections...");

    coll.find().itcount();
    collB.find().itcount();

    jsTestLog("Done.");

    st.stop();

})();