59 lines
2.1 KiB
JavaScript
59 lines
2.1 KiB
JavaScript
(function() {
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'use strict';
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load("jstests/sharding/libs/find_chunks_util.js");
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var st = new ShardingTest({shards: 2, chunkSize: 1});
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assert.commandWorked(st.s0.adminCommand({enableSharding: 'test'}));
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st.ensurePrimaryShard('test', st.shard1.shardName);
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assert.commandWorked(st.s0.adminCommand({shardCollection: 'test.user', key: {x: 'hashed'}}));
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var configDB = st.s0.getDB('config');
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var chunkCountBefore = findChunksUtil.countChunksForNs(configDB, 'test.user');
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assert.gt(chunkCountBefore, 1);
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var testDB = st.s0.getDB('test');
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for (var x = 0; x < 1000; x++) {
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testDB.user.insert({x: x});
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}
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var chunkDoc = findChunksUtil.findChunksByNs(configDB, 'test.user').sort({min: 1}).next();
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var min = chunkDoc.min;
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var max = chunkDoc.max;
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// Assumption: There are documents in the MinKey chunk, otherwise, splitVector will fail.
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//
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// Note: This chunk will have 267 documents if collection was presplit to 4.
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var cmdRes = assert.commandWorked(st.s0.adminCommand({split: 'test.user', bounds: [min, max]}),
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'Split on bounds failed for chunk [' + tojson(chunkDoc) + ']');
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chunkDoc = findChunksUtil.findChunksByNs(configDB, 'test.user').sort({min: 1}).skip(1).next();
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var middle = NumberLong(chunkDoc.min.x + 1000000);
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cmdRes = assert.commandWorked(st.s0.adminCommand({split: 'test.user', middle: {x: middle}}),
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'Split failed with middle [' + middle + ']');
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cmdRes = assert.commandWorked(st.s0.adminCommand({split: 'test.user', find: {x: 7}}),
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'Split failed with find.');
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var chunkList = findChunksUtil.findChunksByNs(configDB, 'test.user').sort({min: 1}).toArray();
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assert.eq(chunkCountBefore + 3, chunkList.length);
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chunkList.forEach(function(chunkToMove) {
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var toShard = configDB.shards.findOne({_id: {$ne: chunkToMove.shard}})._id;
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print('Moving chunk ' + chunkToMove._id + ' from shard ' + chunkToMove.shard + ' to ' +
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toShard + ' ...');
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assert.commandWorked(st.s0.adminCommand({
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moveChunk: 'test.user',
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bounds: [chunkToMove.min, chunkToMove.max],
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to: toShard,
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_waitForDelete: true
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}));
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});
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st.stop();
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})();
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