pymongo.errors.OperationFailure: Authentication failed.
mongoDB有不同的认证机制，3.0版本以后采用的是'MONGODB-CR',之前的版本采用的是'MONGODB-CR'。所以，以我的版本情况，显然应该用'SCRAM-SHA-1'frompymongoimportMongoClienthost='127.0.0.1'client=MongoClient(...
MySQL出现：com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure Last packet sent to the server was 0 ms ago.
1、首先检查生产环境的机器是否ping的通和telnet的通数据库2、排查数据库连接的参数3、看数据量是否很大 参考：http://blog.csdn.net/sclxf/article/details/5775125 ...
su: Authentication failure问题
su命令不能切换root，提示su:Authenticationfailure，只要你sudopasswdroot过一次之后，下次再su的时候只要输入密码就可以成功登录了。...
Tomcat Deployment failure ，locked one or more files
在用Eclipse+Tomcat配置J2EE项目时，出现如下提示错误： UndeploymentFailurecouldnotberedeployedbecauseitcouldnotbecompletelyremovedintheundeploymentpha...
javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_failure 解决方案
这个是jdk导致的，jdk里面有一个jce的包，安全性机制导致的访问https会报错，官网上有替代的jar包，换掉就好了目录%JAVA_HOME%jrelibsecurity里的local_policy.jar,US_export_policy.jarJDK7http://www.oracle.com/technetw...
Deployment failure on Tomcat 7.x. Could not copy all resources to
今天在网上部署项目的时候出现在了问题tomcat一直部署不上网上查了一下原因记下来供大家查看[plain]<span>DeploymentfailureonTomcat 6.x.CouldnotcopyallresourcestoD:ProgramFilesapache-tomcat-6.0.16...
Maven error in eclipse (pom.xml) : Failure to transfer org.apache.maven.plugins:maven-surefire-plugin:pom:2.12.4
iwannamakewebprojectusingtheMaventoimportautomaticallyalllibrariesthatineed,soichose "maven-archetype-webpp"afterthatigotthiserroronpom.xmlfile:Description...
Communications link failure due to underlying exception: ** BEGIN NESTED EXC
一是将wait_timeout=31536000 interactive_timeout=31536000 将过期时间修改为1年。 二是在连接URL上添加参数：&autoReconnect=true&failOverReadO...
Eclipse4.6安装Tomcat插件时报错：Unable to read repository at http://tomcatplugin.sf.net/update/content.xml. Received fatal alert: handshake_failure
错误如下：Unabletoreadrepositoryathttp://tomcatplugin.sf.net/update/content.xml.Receivedfatalalert:handshake_failure 由于使用的是Eclipse4.6.3，导致安装时提示不能安装此插件，解决方法如下：1、...