MongoDB aggregate framework very slow when have lookup - mongodb

Question

this is my method, when the server runs this mothod, it will take 18s.
but when i run the same query, use NoSQLBoost, it just takes 5s.
public Integer queryUserEduTotal(UserAdminV1StepListRequest body) throws ParseException {
Criteria criteria = Criteria.where(Column.SYSTEM_STATUS).is(true);
criteria.and(UserColumn.APP_ID).is(body.getAppId());
criteria.and(UserColumn.STATUS).is(2);
Criteria criteria1 = Criteria.where(UserColumn.USER_TYPE).exists(false);
Criteria criteria2 = Criteria.where(UserColumn.USER_TYPE).is(UserTypeEnum.USER_REGISTER.getKey());
Criteria criteria3 = new Criteria();
criteria3.orOperator(criteria1, criteria2);
criteria.andOperator(criteria3, Criteria.where(UserColumn.SYSTEM_CREATE_TIME).gte(sdf.parse(body.getStart())), Criteria.where(UserColumn.SYSTEM_CREATE_TIME).lte(sdf.parse(body.getEnd())));
LookupOperation lookup = lookup("user_edu_item_info", "_id", UserEduItemColumn.USER_ID, "edu_info");
Criteria criteria4 = Criteria.where(Column.SYSTEM_STATUS).is(true);
criteria4.and(UserColumn.APP_ID).is(body.getAppId());
criteria4.and("edu_info._id").exists(true);
Aggregation typedAggregation1 = Aggregation.newAggregation(
match(criteria),
lookup,
match(criteria4),
Aggregation.count().as(Constant.COUNT)
);
AggregationResults<BasicDBObject> aggregationResults = mongoTemplate.aggregate(typedAggregation1, User.class, BasicDBObject.class);
int count = 0;
if (aggregationResults.getMappedResults().size() == 0) {
count = 0;
} else {
String document = JSON.toJSONString(aggregationResults.getMappedResults().get(0));
JSONObject result = JSON.parseObject(document);
count = result.getInteger(Constant.COUNT);
}
return count;
}
and, i run the same code on the local by using the java program.it takes 5s too.
i dont know why the server takes so much time.
MongoDB configuration:
MongoClientOptions.Builder builder = new xxx()
builder.connectionsPerHost(100);
builder.minConnectionsPerHost(10);
builder.connectTimeout(30000);
builder.threadsAllowedToBlockForConnectionMultiplier(10);
builder.serverSelectionTimeout(30000);
builder.socketTimeout(0);
builder.maxWaitTime(120000);
builder.heartbeatConnectTimeout(30000);
builder.heartbeatSocketTimeout(30000);
builder.heartbeatFrequency(10000);
builder.minHeartbeatFrequency(500);
builder.localThreshold(15);
this is my local java code
public class Test {
public static void main(String[] args) {
// Link code omitted
MongoTemplate mongoTemplate = new MongoTemplate(mongoDbFactory);
search(mongoTemplate);
try {
mongoDbFactory.destroy();
} catch (Exception e) {
e.printStackTrace();
}
}
public static void search(MongoTemplate mongoTemplate){
Criteria criteria = Criteria.where("systemStatus").is(true);
//criteria code omitted, sane whit the server code
Aggregation typedAggregation1 = Aggregation.newAggregation(
match(criteria),
lookup,
match(criteria4),
Aggregation.count().as("count")
);
AggregationResults<BasicDBObject> aggregationResults = mongoTemplate.aggregate(typedAggregation1, User.class, BasicDBObject.class);
}
}