今天项目中报了如下错误 The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. 查了下网上,都是说是mysql默认8小时关闭不用的连接.用数据库连接池导致的.可是项目中这个功能是用来导数据的,是动态连接,直接java jdbc 获取connection的,用完之后就关闭了.最后运维的人员查出来是i…
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure::The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. 解决方案: mysql数据库url中添加了aut…
The last packet sent successfully to the server was milliseconds ago. The driver has not received any packets from the server. 今天操作数据库较大数据库访问量的时候出现问题,大致是数据库连接缓冲池的问题,弄了半天的mysql (ubuntu). 解决办法: (1)使用JDBC URL中使用autoReconnect属性,url添加 &autoReconnect=true&a…
1 详细异常信息 The last packet sent successfully to the server was milliseconds ago. The driver has not received any packets from the server. at sun.reflect.GeneratedConstructorAccessor35.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAcce…
今天在使用JDBC操作mysql时遇到下面的异常信息: 引用 The last packet sent successfully to the server was 0 milliseconds ago. The driver has not received any packets from the server. at com.tomymap.galaxy.virgo.util.DbService.getConnection(DbService.java:66) at com.tomymap…
出现异常"The last packet sent successfully to the server was 0 milliseconds ago."的大部分原因是由于数据库回收了连接,而系统的缓冲池不知道,继续使用被回收的连接所致的. 以mysql为例: 第一种解决办法,就是将mysql回收空闲连接的时间变长,mysql默认回收时间是8小时,可以在mysql目录下的my.ini中增加下面配置,将时间改为1天. 单位是秒,最大好像是24天: [mysqld] wait_timeou…
本地升级了下MySQL的版本,从5.6升为5.7,数据文件直接拷贝的,项目查询数据库报错: Could not retrieve transation read-only status server The last packet successfully received from the server was 20,519 milliseconds ago. The last packet sent successfully to the server was 0 milliseconds…
出现异常”The last packet sent successfully to the server was 0 milliseconds ago.“的大部分原因是由于数据库回收了连接,而系统的缓冲池不知道,继续使用被回收的连接所致的. 以mysql为例: 第一种解决办法,就是将mysql回收空闲连接的时间变长,mysql默认回收时间是8小时,可以在mysql目录下的my.ini中增加下面配置,将时间改为1天. 单位是秒,最大好像是24天: [mysqld] wait_timeout=864…
The last packet sent successfully to the server was 0 milliseconds ago. 今日遇到了这个坑,看似平白无奇. 首先,我定位到是数据库的问题. 做了如下处理: 仔细查看代码中数据库url的配置问题. 查看数据库的权限问题. 去tomcat的container ping了一下. 发现都没问题. 我他么.. 卡了一天.. 灵机一动,重启了一下mysql这个container,好使了. 总结一下就是: 在container做了修改后,必…
引言 ArcGIS Server 10.0在使用和安装的过程中,需要进行比较全面的学习,才能正确使用.缺乏正确的指引,用户很容易在安装及使用中遇到问题.所以笔者在此总结Server 10.0的安装及使用中需要参考的资源.提供适当的教程,并对可能出现的问题进行解释,可供一些可行的解决方案.有兴趣做好Server 10.0工作的笔者,请耐心阅读本文.笔者花了近一个星期的时间研究ArcGIS Server 10.0的使用,希望对后来者能有所帮助. 安装 Server 10.0的安装前,建议在本机安装一…
Caused by: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was 2,926,157 milliseconds ago. The last packet sent successfully to the server was 2,926,158 milliseconds ago. is longer than t…
调试一个程序, 调试到一半, 下班回家, 程序卡在了某一行, 第二天早上回来一看, 发现了异常: Wed Sep :: GMT+: WARN: Establishing SSL connection without server's identity verification is not recommended. According to MySQL 5.5.45+, 5.6.26+ and 5.7.6+ requirements SSL connection must be establis…
How to setup Darwin Streaming Server 6.0.3 on 32 or 64 bit Linux platforms, add custom functionality by developing plugins ("modules" as Apple calls them), and results of some performance and load tests I ran TAG: DSS Darwin St…
Adobe Flash Media Interactive Server 3.5s/n:1373-5047-2985-0514-5175-0098 s/n: 1373-5632-4666-9521-8824-8160 s/n: 1373-5568-5048-7659-1023-7918地址:http://download.macromedia.com/p ... hMediaServer3.5.exe Adobe Flash Media Interactive Server 4.0序列号Name…
flash media server 4.5 及最新 flash media server 5.0 注册码 防止图片打不开时: Name:tam/CORE Serial:1652-5580-8001-8333-2201-1631 http://f.hiphotos.bdimg.com/album/pic/item/267f9e2f0708283842c952dab999a9014d08f13c.jpg…
当直接执行./mongo 出现这样的提示:couldn't connect to server 127.0.0.1:27017 at src/mongo/shell/mongo.js:145 解决: 执行./mongod --dbpath=/data/mong/db 启动后再执行 ./mongo 则可以了…
w几乎所有的HTTP通信都由TCP/IP承载. HTTP The Definitive Guide Just about all of the world's HTTP communication is carried over TCP/IP, a popular layered set of packet-switched network protocols spoken by computers and network devices around the globe. A client a…