c078dc37a9
This is just a cleanup work to hide some of the private state of ReplSetTest so it is easier to encapsulate and add new logic. Also enables strict mode.
82 lines
3.7 KiB
JavaScript
82 lines
3.7 KiB
JavaScript
// This test requires persistence because it assumes standalone shards will still have their data
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// after restarting.
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// @tags: [requires_persistence]
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(function() {
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'use strict';
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var st = new ShardingTest({name: "write_commands", mongos: 2, shards: 2 });
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var dbTestName = 'WriteCommandsTestDB';
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assert.commandWorked(st.s0.adminCommand({ enablesharding: dbTestName }));
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st.ensurePrimaryShard(dbTestName, 'shard0000');
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assert.commandWorked(st.s0.adminCommand({ shardCollection: dbTestName + '.TestColl',
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key: { Key: 1 },
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unique: true }));
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// Split at keys 10 and 20
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assert.commandWorked(st.s0.adminCommand({ split: dbTestName + '.TestColl', middle: { Key: 10 } }));
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assert.commandWorked(st.s0.adminCommand({ split: dbTestName + '.TestColl', middle: { Key: 20 } }));
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printjson(st.config.getSiblingDB('config').chunks.find().toArray());
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// Move < 10 to shard0000, 10 and 20 to shard00001
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st.s0.adminCommand({ moveChunk: dbTestName + '.TestColl', find: { Key: 0 }, to: 'shard0000' });
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st.s0.adminCommand({ moveChunk: dbTestName + '.TestColl', find: { Key: 19 }, to: 'shard0001' });
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st.s0.adminCommand({ moveChunk: dbTestName + '.TestColl', find: { Key: 21 }, to: 'shard0001' });
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printjson(st.config.getSiblingDB('config').chunks.find().toArray());
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// Insert one document in each chunk, which we will use to change
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assert(st.s1.getDB(dbTestName).TestColl.insert({ Key: 1 }));
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assert(st.s1.getDB(dbTestName).TestColl.insert({ Key: 11 }));
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assert(st.s1.getDB(dbTestName).TestColl.insert({ Key: 21 }));
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// Make sure the documents are correctly placed
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printjson(st.d0.getDB(dbTestName).TestColl.find().toArray());
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printjson(st.d1.getDB(dbTestName).TestColl.find().toArray());
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assert.eq(1, st.d0.getDB(dbTestName).TestColl.count());
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assert.eq(2, st.d1.getDB(dbTestName).TestColl.count());
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assert.eq(1, st.d0.getDB(dbTestName).TestColl.find({ Key: 1 }).count());
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assert.eq(1, st.d1.getDB(dbTestName).TestColl.find({ Key: 11 }).count());
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assert.eq(1, st.d1.getDB(dbTestName).TestColl.find({ Key: 21 }).count());
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// Move chunk [0, 19] to shard0000 and make sure the documents are correctly placed
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st.s0.adminCommand({ moveChunk: dbTestName + '.TestColl', find: { Key: 19 }, to: 'shard0000' });
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printjson(st.config.getSiblingDB('config').chunks.find().toArray());
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printjson(st.d0.getDB(dbTestName).TestColl.find({}).toArray());
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printjson(st.d1.getDB(dbTestName).TestColl.find({}).toArray());
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// Now restart all mongod instances, so they don't know yet that they are sharded
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st.restartMongod(0);
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st.restartMongod(1);
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// Now that both mongod shards are restarted, they don't know yet that they are part of a sharded
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// cluster until they get a setShardVerion command. Mongos instance s1 has stale metadata and
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// doesn't know that chunk with key 19 has moved to shard0000 so it will send it to shard0001 at
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// first.
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//
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// Shard0001 would only send back a stale config exception if it receives a setShardVersion
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// command. The bug that this test validates is that setShardVersion is indeed being sent (for more
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// information, see SERVER-19395).
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st.s1.getDB(dbTestName).TestColl.update({ Key: 11 }, { $inc: { Counter: 1 } }, { upsert: true });
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printjson(st.d0.getDB(dbTestName).TestColl.find({}).toArray());
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printjson(st.d1.getDB(dbTestName).TestColl.find({}).toArray());
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assert.eq(2, st.d0.getDB(dbTestName).TestColl.count());
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assert.eq(1, st.d1.getDB(dbTestName).TestColl.count());
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assert.eq(1, st.d0.getDB(dbTestName).TestColl.find({ Key: 1 }).count());
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assert.eq(1, st.d0.getDB(dbTestName).TestColl.find({ Key: 11 }).count());
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assert.eq(1, st.d1.getDB(dbTestName).TestColl.find({ Key: 21 }).count());
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st.stop();
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})();
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