31 lines
813 B
JavaScript
31 lines
813 B
JavaScript
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let t = db.update_serializability1;
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t.drop();
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let N = 100000;
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let bulk = t.initializeUnorderedBulkOp();
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for (var i = 0; i < N; i++) {
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bulk.insert({_id: i, a: i, b: N - i, x: 1, y: 1});
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}
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bulk.execute();
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t.createIndex({a: 1});
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t.createIndex({b: 1});
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let s1 = startParallelShell(
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"db.update_serializability1.update( { a : { $gte : 0 } }, { $set : { b : " + (N + 1) +
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", x : 2 } }, false, true );");
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let s2 = startParallelShell("db.update_serializability1.update( { b : { $lte : " + N +
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" } }, { $set : { a : -1, y : 2 } }, false, true );");
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s1();
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s2();
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// some of each type should have gotten done
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assert(t.find({x: 2}).count() > 0);
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assert(t.find({y: 2}).count() > 0);
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// both operations should never happen on a document
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assert.eq(0, t.find({x: 2, y: 2}).count());
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