我没有找出这个bug的原因"My netty Server没有在下面的异常之后处理任何消息。“
org.jboss.netty.channel.SimpleChannelHandler - EXCEPTION, please implement com.kakapo.unity.handler.RegistrationHandler.exceptionCaught() for proper handling.
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully r
Apache httpd多年来为我做得很好,在我一直在维护的遗留定制LAMP堆栈应用程序中非常稳定和高性能(阅读:试图逃离)
我的LAMP堆栈的日子现在已经屈指可数了,现在我要转移到多语的奇妙世界:
1) Scala REST framework on Jetty 8 (on the fence between Spray & Scalatra)
2) Load balancer/Static file server: Apache Httpd, Nginx, or ?
3) MySQL via ScalaQuery
4) Client-side: jQuery, Backbone,
Setting up mysql-server-5.7 (5.7.13-0ubuntu0.16.04.2) ...
debconf: unable to initialize frontend: Dialog
debconf: (Dialog frontend requires a screen at least 13 lines tall and 31 columns wide.)
debconf: falling back to frontend: Readline
update-alternatives: error: alternative path /etc/mysql/mysql.
我的Rails应用程序的MySQL后端有问题。
基本上,每次我部署时,我都会收到奇怪的异常,比如
ActiveRecord::StatementInvalid: Mysql2::Error:
NoMethodError: undefined method `fields' for nil:NilClass
ActiveModel::MissingAttributeError: missing attribute: created_at
ActiveRecord::StatementInvalid: Mysql2::Error: Lost connection to MySQL ser
我有一个疯狂的cpu使用mysqld +600%这里是我的cnf文件
# Example MySQL config file for medium systems.
#
# This is for a system with little memory (32M - 64M) where MySQL plays
# an important part, or systems up to 128M where MySQL is used together with
# other programs (such as a web server)
#
# You can copy this file
我正在处理一些业务代码,这些代码处理给定的事件,查询MySQL DB,然后将格式化的对象上传到DynamoDB。代码如下所示:
var mysql = require('mysql');
var AWS = require('aws-sdk');
var dynamodb = new AWS.DynamoDB({ apiVersion: '2012-08-10' });
var pool = mysql.createPool({
host: process.env.DB_HOST,
user: process.env.DB_USER,
我正在尝试使用JMeter执行负载测试,其中我使用HTTP记录器记录了一个脚本。现在,我必须对多个用户执行相同的测试,因此在为5个用户配置测试脚本后运行测试脚本时,我必须使用一个包含5 users.now的详细信息的users.now文件,并且假设有5个HTTP requests.then,其中一些请求失败,显示下面的错误:
PDOException in Connector.php第55行:拒绝用户“伪造”@‘localhost’(使用密码:否)的SQLSTATEHY000访问
in Connector.php line 55
at PDO->__construct('mysq
所以我用jquery php和mysql创建了一个聊天。它还使用ajax。下面是代码
PHP进程页面:
$result = mysql_query("SELECT *
FROM messages
ORDER BY id DESC
LIMIT 30") or die(mysql_error());
while($row = mysql_fetch_array($result)) {
if($row['correct'
我使用datastax驱动程序3.1.0连接到cassandra集群,而我的cassandra集群版本为2.0.10。我是用QUORUM一致性异步编写的。
private final ExecutorService executorService = Executors.newFixedThreadPool(10);
private final Semaphore concurrentQueries = new Semaphore(1000);
public void save(String process, int clientid, long deviceid) {