87 lines
3.8 KiB
JavaScript
87 lines
3.8 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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var collName = dbTestName + '.TestColl';
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assert.commandWorked(st.s0.adminCommand({enablesharding: dbTestName}));
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st.ensurePrimaryShard(dbTestName, st.shard0.shardName);
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assert.commandWorked(
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st.s0.adminCommand({shardCollection: collName, key: {Key: 1}, unique: true}));
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// Split at keys 10 and 20
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assert.commandWorked(st.s0.adminCommand({split: collName, middle: {Key: 10}}));
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assert.commandWorked(st.s0.adminCommand({split: collName, middle: {Key: 20}}));
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printjson(st.config.getSiblingDB('config').chunks.find().toArray());
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// Move 10 and 20 to st.shard0.shardName1
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assert.commandWorked(st.s0.adminCommand(
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{moveChunk: collName, find: {Key: 19}, to: st.shard1.shardName, _waitForDelete: true}));
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assert.commandWorked(st.s0.adminCommand(
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{moveChunk: collName, find: {Key: 21}, to: st.shard1.shardName, _waitForDelete: true}));
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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.shard0.getDB(dbTestName).TestColl.find().toArray());
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printjson(st.shard1.getDB(dbTestName).TestColl.find().toArray());
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assert.eq(1, st.shard0.getDB(dbTestName).TestColl.count());
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assert.eq(2, st.shard1.getDB(dbTestName).TestColl.count());
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assert.eq(1, st.shard0.getDB(dbTestName).TestColl.find({Key: 1}).count());
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assert.eq(1, st.shard1.getDB(dbTestName).TestColl.find({Key: 11}).count());
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assert.eq(1, st.shard1.getDB(dbTestName).TestColl.find({Key: 21}).count());
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// Move chunk [0, 19] to st.shard0.shardName and make sure the documents are correctly placed
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assert.commandWorked(st.s0.adminCommand(
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{moveChunk: collName, find: {Key: 19}, _waitForDelete: true, to: st.shard0.shardName}));
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printjson(st.config.getSiblingDB('config').chunks.find().toArray());
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printjson(st.shard0.getDB(dbTestName).TestColl.find({}).toArray());
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printjson(st.shard1.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.restartShardRS(0);
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st.restartShardRS(1);
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// Now that both mongod shards are restarted, they don't know yet that they are part of a
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// 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 st.shard0.shardName so it will send it to
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// st.shard1.shardName 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
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// 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.shard0.getDB(dbTestName).TestColl.find({}).toArray());
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printjson(st.shard1.getDB(dbTestName).TestColl.find({}).toArray());
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assert.eq(2, st.shard0.getDB(dbTestName).TestColl.count());
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assert.eq(1, st.shard1.getDB(dbTestName).TestColl.count());
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assert.eq(1, st.shard0.getDB(dbTestName).TestColl.find({Key: 1}).count());
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assert.eq(1, st.shard0.getDB(dbTestName).TestColl.find({Key: 11}).count());
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assert.eq(1, st.shard1.getDB(dbTestName).TestColl.find({Key: 21}).count());
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st.stop();
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})();
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