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path: root/jstests/sharding/features1.js
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(function() {

    var s = new ShardingTest({name: "features1", shards: 2, mongos: 1});

    s.adminCommand({enablesharding: "test"});
    s.ensurePrimaryShard('test', s.shard1.shardName);

    // ---- can't shard system namespaces ----

    assert(!s.admin.runCommand({shardcollection: "test.system.blah", key: {num: 1}}).ok,
           "shard system namespace");

    // ---- setup test.foo -----

    s.adminCommand({shardcollection: "test.foo", key: {num: 1}});

    db = s.getDB("test");

    a = s._connections[0].getDB("test");
    b = s._connections[1].getDB("test");

    db.foo.ensureIndex({y: 1});

    s.adminCommand({split: "test.foo", middle: {num: 10}});
    s.adminCommand(
        {movechunk: "test.foo", find: {num: 20}, to: s.getOther(s.getPrimaryShard("test")).name});

    db.foo.save({num: 5});
    db.foo.save({num: 15});

    s.sync();

    // ---- make sure shard key index is everywhere ----

    assert.eq(3, a.foo.getIndexKeys().length, "a index 1");
    assert.eq(3, b.foo.getIndexKeys().length, "b index 1");

    // ---- make sure if you add an index it goes everywhere ------

    db.foo.ensureIndex({x: 1});

    s.sync();

    assert.eq(4, a.foo.getIndexKeys().length, "a index 2");
    assert.eq(4, b.foo.getIndexKeys().length, "b index 2");

    // ---- no unique indexes ------

    db.foo.ensureIndex({z: 1}, true);

    s.sync();

    assert.eq(4, a.foo.getIndexKeys().length, "a index 3");
    assert.eq(4, b.foo.getIndexKeys().length, "b index 3");

    db.foo.ensureIndex({num: 1, bar: 1}, true);
    s.sync();
    assert.eq(5, b.foo.getIndexKeys().length, "c index 3");

    // ---- can't shard thing with unique indexes

    db.foo2.ensureIndex({a: 1});
    s.sync();
    printjson(db.foo2.getIndexes());
    assert(s.admin.runCommand({shardcollection: "test.foo2", key: {num: 1}}).ok,
           "shard with index");

    db.foo3.ensureIndex({a: 1}, true);
    s.sync();
    printjson(db.foo3.getIndexes());
    assert(!s.admin.runCommand({shardcollection: "test.foo3", key: {num: 1}}).ok,
           "shard with unique index");

    db.foo7.ensureIndex({num: 1, a: 1}, true);
    s.sync();
    printjson(db.foo7.getIndexes());
    assert(s.admin.runCommand({shardcollection: "test.foo7", key: {num: 1}}).ok,
           "shard with ok unique index");

    // ---- unique shard key ----

    assert(s.admin.runCommand({shardcollection: "test.foo4", key: {num: 1}, unique: true}).ok,
           "shard with index and unique");
    s.adminCommand({split: "test.foo4", middle: {num: 10}});

    s.admin.runCommand(
        {movechunk: "test.foo4", find: {num: 20}, to: s.getOther(s.getPrimaryShard("test")).name});

    assert.writeOK(db.foo4.save({num: 5}));
    assert.writeOK(db.foo4.save({num: 15}));
    s.sync();
    assert.eq(1, a.foo4.count(), "ua1");
    assert.eq(1, b.foo4.count(), "ub1");

    assert.eq(2, a.foo4.getIndexes().length, "ua2");
    assert.eq(2, b.foo4.getIndexes().length, "ub2");

    assert(a.foo4.getIndexes()[1].unique, "ua3");
    assert(b.foo4.getIndexes()[1].unique, "ub3");

    assert.eq(2, db.foo4.count(), "uc1");
    db.foo4.save({num: 7});
    assert.eq(3, db.foo4.count(), "uc2");
    assert.writeError(db.foo4.save({num: 7}));
    assert.eq(3, db.foo4.count(), "uc4");

    // --- don't let you convertToCapped ----
    assert(!db.foo4.isCapped(), "ca1");
    assert(!a.foo4.isCapped(), "ca2");
    assert(!b.foo4.isCapped(), "ca3");
    assert(!db.foo4.convertToCapped(30000).ok, "ca30");
    assert(!db.foo4.isCapped(), "ca4");
    assert(!a.foo4.isCapped(), "ca5");
    assert(!b.foo4.isCapped(), "ca6");

    //      make sure i didn't break anything
    db.foo4a.save({a: 1});
    assert(!db.foo4a.isCapped(), "ca7");
    db.foo4a.convertToCapped(30000);
    assert(db.foo4a.isCapped(), "ca8");

    // --- don't let you shard a capped collection

    db.createCollection("foo5", {capped: true, size: 30000});
    assert(db.foo5.isCapped(), "cb1");
    var res = s.admin.runCommand({shardcollection: "test.foo5", key: {num: 1}});
    assert(!res.ok, "shard capped: " + tojson(res));

    // ---- can't shard non-empty collection without index -----

    assert.writeOK(db.foo8.save({a: 1}));
    assert(!s.admin.runCommand({shardcollection: "test.foo8", key: {a: 1}}).ok,
           "non-empty collection");

    // ---- can't shard non-empty collection with null values in shard key ----

    assert.writeOK(db.foo9.save({b: 1}));
    db.foo9.ensureIndex({a: 1});
    assert(!s.admin.runCommand({shardcollection: "test.foo9", key: {a: 1}}).ok,
           "entry with null value");

    // --- listDatabases ---

    r = db.getMongo().getDBs();
    assert.eq(3, r.databases.length, tojson(r));
    assert.eq("number", typeof(r.totalSize), "listDatabases 3 : " + tojson(r));

    s.stop();

})();