MongoDB 更改流副本集限制

如何更改 MongoDB 副本集的限制

javascript
const MongoClient = require('mongodb').MongoClient;
const url = 'mongodb://localhost:27017';
const dbName = 'mydatabase';
MongoClient.connect(url, function(err, client) {
  if (err) throw err;
  const db = client.db(dbName);
  const adminDb = db.admin();
  // 修改副本集的最大连接数
  adminDb.command({ replSetGetConfig: 1 }, function(err, result) {
    if (err) throw err;
    result.config.settings.maxIncomingConnections = 2000;
    adminDb.command({ replSetReconfig: result.config }, function(err, result) {
      if (err) throw err;
      console.log('副本集的最大连接数已成功修改为 2000');
      client.close();
    });
  });
  // 增加副本集的写入容量
  adminDb.command({ replSetGetConfig: 1 }, function(err, result) {
    if (err) throw err;
    result.config.settings.maxWriteBatchSize = 2000;
    adminDb.command({ replSetReconfig: result.config }, function(err, result) {
      if (err) throw err;
      console.log('副本集的写入容量已成功增加到 2000');
      client.close();
    });
  });
  // 增加副本集的最大存储容量
  adminDb.command({ setParameter: 1, wiredTigerEngineRuntimeConfig: 'max=4TB' }, function(err, result) {
    if (err) throw err;
    console.log('副本集的最大存储容量已成功增加到 4TB');
    client.close();
  });
});