64 lines
1.7 KiB
JavaScript
64 lines
1.7 KiB
JavaScript
//
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// Tests autosplit locations with force : true
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//
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var options = {
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chunkSize: 1, // MB
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};
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var st = new ShardingTest({shards: 1, mongos: 1, other: options});
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var mongos = st.s0;
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var admin = mongos.getDB("admin");
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var config = mongos.getDB("config");
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var shardAdmin = st.shard0.getDB("admin");
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var coll = mongos.getCollection("foo.bar");
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assert(admin.runCommand({enableSharding: coll.getDB() + ""}).ok);
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assert(admin.runCommand({shardCollection: coll + "", key: {_id: 1}}).ok);
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assert(admin.runCommand({split: coll + "", middle: {_id: 0}}).ok);
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jsTest.log("Insert a bunch of data into a chunk of the collection...");
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var bulk = coll.initializeUnorderedBulkOp();
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for (var i = 0; i < (250 * 1000) + 10; i++) {
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bulk.insert({_id: i});
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}
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assert.writeOK(bulk.execute());
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jsTest.log("Insert a bunch of data into the rest of the collection...");
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bulk = coll.initializeUnorderedBulkOp();
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for (var i = 1; i <= (250 * 1000); i++) {
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bulk.insert({_id: -i});
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}
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assert.writeOK(bulk.execute());
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jsTest.log("Get split points of the chunk using force : true...");
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var maxChunkSizeBytes = 1024 * 1024;
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var splitKeys = shardAdmin
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.runCommand({
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splitVector: coll + "",
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keyPattern: {_id: 1},
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min: {_id: 0},
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max: {_id: MaxKey},
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force: true
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})
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.splitKeys;
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printjson(splitKeys);
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printjson(coll.stats());
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st.printShardingStatus();
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jsTest.log("Make sure our split is approximately in half...");
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assert.eq(splitKeys.length, 1);
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var splitKey = splitKeys[0]._id;
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assert.gt(splitKey, ((250 * 1000) / 2) - 50);
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assert.lt(splitKey, ((250 * 1000) / 2) + 50);
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st.stop();
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