4c98927f26
This change moves the sharding balancer to run on the primary of the CSRS config server and removes it from the mongos instances.
108 lines
4.2 KiB
JavaScript
108 lines
4.2 KiB
JavaScript
//
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// Testing migrations between latest and last-stable mongod versions, where the
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// donor is the latest version and the recipient the last-stable, and vice versa.
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// Migrations should be successful.
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//
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load("./jstests/multiVersion/libs/verify_versions.js");
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(function() {
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"use strict";
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var options = {
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shards: [
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{binVersion: "last-stable"},
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{binVersion: "last-stable"},
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{binVersion: "latest"},
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{binVersion: "latest"}
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],
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mongos: 1,
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other: {mongosOptions: {binVersion: "last-stable"}},
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// TODO: SERVER-24163 remove after v3.4
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waitForCSRSSecondaries: false
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};
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var st = new ShardingTest(options);
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st.stopBalancer();
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assert.binVersion(st.shard0, "last-stable");
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assert.binVersion(st.shard1, "last-stable");
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assert.binVersion(st.shard2, "latest");
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assert.binVersion(st.shard3, "latest");
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assert.binVersion(st.s0, "last-stable");
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var mongos = st.s0, admin = mongos.getDB('admin'),
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shards = mongos.getCollection('config.shards').find().toArray(),
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fooDB = "fooTest", fooNS = fooDB + ".foo", fooColl = mongos.getCollection(fooNS),
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fooDonor = st.shard0, fooRecipient = st.shard2,
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fooDonorColl = fooDonor.getCollection(fooNS),
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fooRecipientColl = fooRecipient.getCollection(fooNS),
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barDB = "barTest", barNS = barDB + ".foo", barColl = mongos.getCollection(barNS),
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barDonor = st.shard3, barRecipient = st.shard1,
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barDonorColl = barDonor.getCollection(barNS),
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barRecipientColl = barRecipient.getCollection(barNS);
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assert.commandWorked(admin.runCommand({enableSharding: fooDB}));
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assert.commandWorked(admin.runCommand({enableSharding: barDB}));
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st.ensurePrimaryShard(fooDB, shards[0]._id);
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st.ensurePrimaryShard(barDB, shards[3]._id);
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assert.commandWorked(admin.runCommand({shardCollection: fooNS, key: {a: 1}}));
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assert.commandWorked(admin.runCommand({split: fooNS, middle: {a: 10}}));
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assert.commandWorked(admin.runCommand({shardCollection: barNS, key: {a: 1}}));
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assert.commandWorked(admin.runCommand({split: barNS, middle: {a: 10}}));
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fooColl.insert({a: 0});
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assert.eq(null, fooColl.getDB().getLastError());
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fooColl.insert({a: 10});
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assert.eq(null, fooColl.getDB().getLastError());
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assert.eq(0, fooRecipientColl.count());
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assert.eq(2, fooDonorColl.count());
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assert.eq(2, fooColl.count());
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barColl.insert({a: 0});
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assert.eq(null, barColl.getDB().getLastError());
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barColl.insert({a: 10});
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assert.eq(null, barColl.getDB().getLastError());
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assert.eq(0, barRecipientColl.count());
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assert.eq(2, barDonorColl.count());
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assert.eq(2, barColl.count());
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/**
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* Perform two migrations:
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* shard0 (last-stable) -> foo chunk -> shard2 (latest)
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* shard3 (latest) -> bar chunk -> shard1 (last-stable)
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*/
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assert.commandWorked(admin.runCommand({moveChunk: fooNS, find: {a: 10}, to: shards[2]._id}));
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assert.commandWorked(admin.runCommand({moveChunk: barNS, find: {a: 10}, to: shards[1]._id}));
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assert.eq(1,
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fooRecipientColl.count(),
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"Foo collection migration failed. " +
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"Last-stable -> latest mongod version migration failure.");
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assert.eq(1,
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fooDonorColl.count(),
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"Foo donor lost its document. " +
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"Last-stable -> latest mongod version migration failure.");
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assert.eq(2,
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fooColl.count(),
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"Incorrect number of documents in foo collection. " +
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"Last-stable -> latest mongod version migration failure.");
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assert.eq(1,
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barRecipientColl.count(),
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"Bar collection migration failed. " +
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"Latest -> last-stable mongod version migration failure.");
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assert.eq(1,
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barDonorColl.count(),
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"Bar donor lost its document. " +
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"Latest -> last-stable mongod version migration failure.");
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assert.eq(2,
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barColl.count(),
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"Incorrect number of documents in bar collection. " +
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"Latest -> last-stable mongod version migration failure.");
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st.stop();
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})();
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