86 lines
3.0 KiB
JavaScript
86 lines
3.0 KiB
JavaScript
(function() {
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"use strict";
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var verifyOutput = function(out) {
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printjson(out);
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assert.commandWorked(out);
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assert.eq(out.counts.input, 51200, "input count is wrong");
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assert.eq(out.counts.emit, 51200, "emit count is wrong");
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assert.gt(out.counts.reduce, 99, "reduce count is wrong");
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assert.eq(out.counts.output, 512, "output count is wrong");
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};
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var st = new ShardingTest(
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{shards: 2, verbose: 1, mongos: 1, other: {chunkSize: 1, enableBalancer: true}});
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st.adminCommand({enablesharding: "mrShard"});
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st.ensurePrimaryShard('mrShard', 'shard0001');
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st.adminCommand({shardcollection: "mrShard.srcSharded", key: {"_id": 1}});
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var db = st.getDB("mrShard");
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var bulk = db.srcSharded.initializeUnorderedBulkOp();
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for (var j = 0; j < 100; j++) {
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for (var i = 0; i < 512; i++) {
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bulk.insert({j: j, i: i});
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}
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}
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assert.writeOK(bulk.execute());
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function map() {
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emit(this.i, 1);
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}
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function reduce(key, values) {
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return Array.sum(values);
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}
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// sharded src
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var suffix = "InSharded";
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var out = db.srcSharded.mapReduce(map, reduce, "mrBasic" + suffix);
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verifyOutput(out);
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out = db.srcSharded.mapReduce(map, reduce, {out: {replace: "mrReplace" + suffix}});
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verifyOutput(out);
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out = db.srcSharded.mapReduce(map, reduce, {out: {merge: "mrMerge" + suffix}});
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verifyOutput(out);
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out = db.srcSharded.mapReduce(map, reduce, {out: {reduce: "mrReduce" + suffix}});
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verifyOutput(out);
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out = db.srcSharded.mapReduce(map, reduce, {out: {inline: 1}});
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verifyOutput(out);
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assert(out.results != 'undefined', "no results for inline");
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// Ensure that mapReduce with a sharded input collection can accept the collation option.
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out = db.srcSharded.mapReduce(map, reduce, {out: {inline: 1}, collation: {locale: "en_US"}});
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verifyOutput(out);
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assert(out.results != 'undefined', "no results for inline with collation");
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out = db.srcSharded.mapReduce(
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map, reduce, {out: {replace: "mrReplace" + suffix, db: "mrShardOtherDB"}});
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verifyOutput(out);
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out = db.runCommand({
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mapReduce: "srcSharded", // use new name mapReduce rather than mapreduce
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map: map,
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reduce: reduce,
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out: "mrBasic" + "srcSharded",
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});
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verifyOutput(out);
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// Ensure that the collation option is propagated to the shards. This uses a case-insensitive
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// collation, and the query seeding the mapReduce should only match the document if the
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// collation is passed along to the shards.
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assert.writeOK(db.srcSharded.remove({}));
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assert.eq(db.srcSharded.find().itcount(), 0);
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assert.writeOK(db.srcSharded.insert({i: 0, j: 0, str: "FOO"}));
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out = db.srcSharded.mapReduce(
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map,
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reduce,
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{out: {inline: 1}, query: {str: "foo"}, collation: {locale: "en_US", strength: 2}});
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assert.commandWorked(out);
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assert.eq(out.counts.input, 1);
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})();
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