93 lines
4.1 KiB
JavaScript
93 lines
4.1 KiB
JavaScript
/**
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* Perform basic tests for the split command against mongos.
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*/
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(function() {
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"use strict";
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var st = new ShardingTest({ shards: 1, other: { chunkSize: 1 }});
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var configDB = st.s.getDB('config');
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// split on invalid ns.
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assert.commandFailed(configDB.adminCommand({ split: 'user', key: { _id: 1 }}));
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// split on unsharded collection (db is not sharding enabled).
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assert.commandFailed(configDB.adminCommand({ split: 'test.user', key: { _id: 1 }}));
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configDB.adminCommand({ enableSharding: 'test' });
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// split on unsharded collection (db is sharding enabled).
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assert.commandFailed(configDB.adminCommand({ split: 'test.user', key: { _id: 1 }}));
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assert.commandWorked(configDB.adminCommand({ shardCollection: 'test.user', key: { _id: 1 }}));
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assert.eq(null, configDB.chunks.findOne({ ns: 'test.user', min: { _id: 0 }}));
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assert.commandWorked(configDB.adminCommand({ split: 'test.user', middle: { _id: 0 }}));
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assert.neq(null, configDB.chunks.findOne({ ns: 'test.user', min: { _id: 0 }}));
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// Cannot split on existing chunk boundary.
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assert.commandFailed(configDB.adminCommand({ split: 'test.user', middle: { _id: 0 }}));
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// Attempt to split on a value that is not the shard key.
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assert.commandFailed(configDB.adminCommand({ split: 'test.user', middle: { x: 100 }}));
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assert.commandFailed(configDB.adminCommand({ split: 'test.user', find: { x: 100 }}));
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assert.commandFailed(configDB.adminCommand({ split: 'test.user',
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bounds: [{ x: MinKey }, { x: MaxKey }]}));
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// Insert documents large enough to fill up a chunk, but do it directly in the shard in order
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// to bypass the auto-split logic.
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var kiloDoc = new Array(1024).join('x');
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var testDB = st.d0.getDB('test');
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var bulk = testDB.user.initializeUnorderedBulkOp();
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for (var x = -1200; x < 1200; x++) {
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bulk.insert({ _id: x, val: kiloDoc });
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}
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assert.writeOK(bulk.execute());
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assert.eq(1, configDB.chunks.find({ ns: 'test.user', min: { $gte: { _id: 0 }}}).itcount());
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// Errors if bounds do not correspond to existing chunk boundaries.
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assert.commandFailed(configDB.adminCommand({ split: 'test.user',
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bounds: [{ _id: 0 }, { _id: 1000 }]}));
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assert.eq(1, configDB.chunks.find({ ns: 'test.user', min: { $gte: { _id: 0 }}}).itcount());
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assert.commandWorked(configDB.adminCommand({ split: 'test.user',
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bounds: [{ _id: 0 }, { _id: MaxKey }]}));
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assert.gt(configDB.chunks.find({ ns: 'test.user', min: { $gte: { _id: 0 }}}).itcount(), 1);
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assert.eq(1, configDB.chunks.find({ ns: 'test.user', min: { $lt: { _id: 0 }}}).itcount());
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assert.commandWorked(configDB.adminCommand({ split: 'test.user', find: { _id: -1 }}));
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assert.gt(configDB.chunks.find({ ns: 'test.user', min: { $lt: { _id: 0 }}}).itcount(), 1);
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//
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// Compound Key
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//
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assert.commandWorked(configDB.adminCommand({ shardCollection: 'test.compound', key: { x: 1, y: 1 }}));
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assert.eq(null, configDB.chunks.findOne({ ns: 'test.compound', min: { x: 0, y: 0 }}));
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assert.commandWorked(configDB.adminCommand({ split: 'test.compound', middle: { x: 0, y: 0 }}));
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assert.neq(null, configDB.chunks.findOne({ ns: 'test.compound', min: { x: 0, y: 0 }}));
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// cannot split on existing chunk boundary.
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assert.commandFailed(configDB.adminCommand({ split: 'test.compound', middle: { x: 0, y: 0 }}));
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bulk = testDB.compound.initializeUnorderedBulkOp();
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for (x = -1200; x < 1200; x++) {
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bulk.insert({ x: x, y: x, val: kiloDoc });
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}
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assert.writeOK(bulk.execute());
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assert.eq(1, configDB.chunks.find({ ns: 'test.compound', min: { $gte: { x: 0, y: 0 }}}).itcount());
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assert.commandWorked(configDB.adminCommand({ split: 'test.compound',
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bounds: [{ x: 0, y: 0 }, { x: MaxKey, y: MaxKey }]}));
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assert.gt(configDB.chunks.find({ ns: 'test.compound', min: { $gte: { x: 0, y: 0 }}}).itcount(), 1);
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assert.eq(1, configDB.chunks.find({ ns: 'test.compound', min: { $lt: { x: 0, y: 0 }}}).itcount());
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assert.commandWorked(configDB.adminCommand({ split: 'test.compound', find: { x: -1, y: -1 }}));
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assert.gt(configDB.chunks.find({ ns: 'test.compound', min: { $lt: { x: 0, y: 0 }}}).itcount(), 1);
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st.stop();
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})();
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