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// Waits for the balancer to run once, then stops it and checks that it is no longer running.
(function() {
var s = new ShardingTest({
name: "slow_sharding_balance3",
shards: 2,
mongos: 1,
other: {
chunkSize: 1,
enableBalancer: true,
shardOptions:
{setParameter: {internalQueryMaxBlockingSortMemoryUsageBytes: 32 * 1024 * 1024}}
}
});
s.adminCommand({enablesharding: "test"});
s.ensurePrimaryShard('test', s.shard1.shardName);
s.config.settings.find().forEach(printjson);
db = s.getDB("test");
bigString = "";
while (bigString.length < 10000)
bigString += "asdasdasdasdadasdasdasdasdasdasdasdasda";
inserted = 0;
num = 0;
var bulk = db.foo.initializeUnorderedBulkOp();
while (inserted < (40 * 1024 * 1024)) {
bulk.insert({_id: num++, s: bigString});
inserted += bigString.length;
}
assert.commandWorked(bulk.execute());
s.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]);
}
assert.lt(10, diff1());
// Wait for balancer to kick in.
var initialDiff = diff1();
assert.soon(function() {
return diff1() != initialDiff;
}, "Balancer did not kick in", 5 * 60 * 1000, 1000);
print("* A");
print("disabling the balancer");
s.stopBalancer();
s.config.settings.find().forEach(printjson);
print("* B");
print(diff1());
var currDiff = diff1();
var waitTime = 0;
var startTime = Date.now();
while (waitTime < (1000 * 60)) {
// Wait for 60 seconds to ensure balancer did not run
assert.eq(currDiff, diff1(), "balance with stopped flag should not have happened");
sleep(5000);
waitTime = Date.now() - startTime;
}
s.stop();
})();
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