今天使用mongo-java-drive写连接mongo的客户端,着实被上面那个错坑了一把.回顾一下解决过程: 报错: com.mongodb.MongoTimeoutException: Timed out after ms , type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoSocketWriteException: Exception sending message}, caused by {javax.net.ssl…

记录一次学习node.js犯的低级错误 这里遇到一个这样的问题 express连接mongoose时报错(node:7584) UnhandledPromiseRejectionWarning: MongooseTimeoutError: Server selection timed out after 30000 ms 连接数据库的代码 const mongoose=require('mongoose') mongoose.connect('mongodb://localhost:27017/…

本地连接mongo报错,错误代码为: Caused by: com.mongodb.MongoTimeoutException: Timed out after 30000 ms while waiting for a server that matches WritableServerSelector. Client view of cluster state is {type=UNKNOWN, servers= ............................... 系统: cent…

1 详细异常 ERROR scheduler.JobScheduler: Error running job streaming job ms. org.apache.spark.SparkException: Job aborted due to stage failure: Task times, most recent failure: Lost task , , executor ): ExecutorLostFailure (executor exited caused by one…

function HttpRequest($url, $params, $method = 'GET', $header = array(), $bEncode = true){ $opts = array( CURLOPT_TIMEOUT => , CURLOPT_RETURNTRANSFER => 1, CURLOPT_SSL_VERIFYPEER => false, CURLOPT_SSL_VERIFYHOST => false, CURLOPT_HTTPHEADER =&g…

昨天在eclipse中编写代码,本来连接mongodb进行各项操作都是正常的,但是有一会儿突然之间就没法连接了,还一直抱错,错误如下: 信息: Cluster created with settings {hosts=[192.168.0.4:27017], mode=SINGLE, requiredClusterType=UNKNOWN, serverSelectionTimeout='30000 ms', maxWaitQueueSize=500} 十一月 06, 2015 9:23:42…

参考网站:http://www.runoob.com/mongodb/mongodb-linux-install.html 1.下载 https://www.mongodb.com/download-center/community 我下载的Linux版本 4.0.8 release版本 .tgz文件,通过rz命令上传到linux服务器 >tar -zxvf mongodb-linux-x86_64-4.0.8.tgz 解压 >mv mongodb-linux-x86_64-4.0.8  /…

Android 跟蓝牙耳机建立连接有两种方式. 1. Android 主动跟蓝牙耳机连BluetoothSettings 中和蓝牙耳机配对上之后, BluetoothHeadsetService 会收到BONDING_CREATED_ACTION,这个时候BluetoothHeadsetService 会主动去和蓝牙耳机建立RFCOMM 连接. if (action.equals(BluetoothIntent.BONDING_CREATED_ACTION)) { if (mState == B…

Android 实现了对Headset 和Handsfree 两种profile 的支持.其实现核心是BluetoothHeadsetService,在PhoneApp 创建的时候会启动它. if (getSystemService(Context.BLUETOOTH_SERVICE) != null) { mBtHandsfree = new BluetoothHandsfree(this, phone); startService(new Intent(this, BluetoothHead…

今天在 Java 连接 Mongo 集群时报了一个超时的错误,但是在本地客户端连接单节点的时候却能连上,具体报的错误如下: Caused by: com.mongodb.MongoTimeoutException: Timed out after 60000 ms while waiting for a server that matches {serverSelectors=[ReadPreferenceServerSelector{readPreference=primaryPreferre…