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(function() {
'use strict';
var s = new ShardingTest({shards: 2, mongos: 1, other: {chunkSize: 1, enableBalancer: true}});
assert.commandWorked(s.s0.adminCommand({enablesharding: "test"}));
s.ensurePrimaryShard('test', s.shard1.shardName);
var db = s.getDB("test");
var bigString = "";
while (bigString.length < 10000) {
bigString += "asdasdasdasdadasdasdasdasdasdasdasdasda";
}
var inserted = 0;
var num = 0;
var bulk = db.foo.initializeUnorderedBulkOp();
while (inserted < (20 * 1024 * 1024)) {
bulk.insert({_id: num++, s: bigString});
inserted += bigString.length;
}
assert.commandWorked(bulk.execute());
assert.commandWorked(s.s0.adminCommand({shardcollection: "test.foo", key: {_id: 1}}));
assert.lt(20, s.config.chunks.count({"ns": "test.foo"}), "setup2");
function diff1() {
var x = s.chunkCounts("foo");
printjson(x);
return Math.max(x[s.shard0.shardName], x[s.shard1.shardName]) -
Math.min(x[s.shard0.shardName], x[s.shard1.shardName]);
}
function sum() {
var x = s.chunkCounts("foo");
return x[s.shard0.shardName] + x[s.shard1.shardName];
}
assert.lt(20, diff1(), "big differential here");
print(diff1());
assert.soon(function() {
var d = diff1();
return d < 5;
// Make sure there's enough time here, since balancing can sleep for 15s or so between
// balances.
}, "balance didn't happen", 1000 * 60 * 5, 5000);
s.stop();
})();
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