69 lines
2.1 KiB
JavaScript
69 lines
2.1 KiB
JavaScript
//
|
|
// Tests autosplit locations with force : true, for small collections
|
|
//
|
|
(function() {
|
|
'use strict';
|
|
|
|
var st = new ShardingTest({shards: 1, mongos: 1, other: {chunkSize: 1}});
|
|
|
|
var mongos = st.s0;
|
|
var admin = mongos.getDB("admin");
|
|
var config = mongos.getDB("config");
|
|
var shardAdmin = st.shard0.getDB("admin");
|
|
var coll = mongos.getCollection("foo.bar");
|
|
|
|
assert.commandWorked(admin.runCommand({enableSharding: coll.getDB() + ""}));
|
|
assert.commandWorked(admin.runCommand({shardCollection: coll + "", key: {_id: 1}}));
|
|
assert.commandWorked(admin.runCommand({split: coll + "", middle: {_id: 0}}));
|
|
|
|
jsTest.log("Insert a bunch of data into the low chunk of a collection," +
|
|
" to prevent relying on stats.");
|
|
|
|
var data128k = "x";
|
|
for (var i = 0; i < 7; i++)
|
|
data128k += data128k;
|
|
|
|
var bulk = coll.initializeUnorderedBulkOp();
|
|
for (var i = 0; i < 1024; i++) {
|
|
bulk.insert({_id: -(i + 1)});
|
|
}
|
|
assert.writeOK(bulk.execute());
|
|
|
|
jsTest.log("Insert 32 docs into the high chunk of a collection");
|
|
|
|
bulk = coll.initializeUnorderedBulkOp();
|
|
for (var i = 0; i < 32; i++) {
|
|
bulk.insert({_id: i});
|
|
}
|
|
assert.writeOK(bulk.execute());
|
|
|
|
jsTest.log("Split off MaxKey chunk...");
|
|
|
|
assert.commandWorked(admin.runCommand({split: coll + "", middle: {_id: 32}}));
|
|
|
|
jsTest.log("Keep splitting chunk multiple times...");
|
|
|
|
st.printShardingStatus();
|
|
|
|
for (var i = 0; i < 5; i++) {
|
|
assert.commandWorked(admin.runCommand({split: coll + "", find: {_id: 0}}));
|
|
st.printShardingStatus();
|
|
}
|
|
|
|
// Make sure we can't split further than 5 (2^5) times
|
|
assert.commandFailed(admin.runCommand({split: coll + "", find: {_id: 0}}));
|
|
|
|
var chunks = config.chunks.find({'min._id': {$gte: 0, $lt: 32}}).sort({min: 1}).toArray();
|
|
printjson(chunks);
|
|
|
|
// Make sure the chunks grow by 2x (except the first)
|
|
var nextSize = 1;
|
|
for (var i = 0; i < chunks.size; i++) {
|
|
assert.eq(coll.count({_id: {$gte: chunks[i].min._id, $lt: chunks[i].max._id}}), nextSize);
|
|
if (i != 0)
|
|
nextSize += nextSize;
|
|
}
|
|
|
|
st.stop();
|
|
})();
|