[java] 15/12/19 14:09:46 INFO mapred.JobClient: Task Id : attempt_201512182036_0017_m_000000_0, Status : FAILED [java] java.lang.RuntimeException: java.lang.NoSuchMethodException: org.lukey.hadoop.tianyi.TianYiBigData$MyMapper.<init>() [java] at org…

执行mapreduce报错java.lang.Exception: java.lang.RuntimeException: java.lang.NoSuchMethodException: com.web.visit.main.ClickVist$VisitMapper.<init>(), 原因是map类和reduce没有加static修饰,因为hadoop在调用map和reduce类时采用的反射调用,内部类不是静态的,没有获取到内部类的实例 解决方法 1.在内部类加上static修饰 2.将…

今天跑MapReduce项目的时候遇到了这个问题,日志如下所示: // :: DEBUG ipc.ProtobufRpcEngine: Call: getDiagnostics took 19ms Error: java.lang.RuntimeException: java.lang.NoSuchMethodException: com.hadoop.train.Anagram$AnagramReducer.<init>() at org.apache.hadoop.util.Reflect…

QA:java.lang.RuntimeException:java.io.FileNotFoundException:Resource nexus-maven-repository-index.properties does not exist.…

14/02/28 20:29:48 INFO mapred.JobClient: Task Id : attempt_201402281833_0004_m_000000_1, Status : FAILED java.lang.RuntimeException: java.lang.ClassNotFoundException: cmd.CmdWordCount$MyMapper at org.apache.hadoop.conf.Configuration.getClass(Configur…

storm因机器断电或其他异常导致的supervisor意外终止,再次启动时报错: 1. 2013-09-24 09:15:44,361 INFO [main] daemon.supervisor (NO_SOURCE_FILE:invoke(0)) - Starting supervisor with id 74332654-8925-48a1-b67b-7eacaa52aeca at host hadoop02 2. 2013-09-24 09:15:45,246 ERROR [Thread…

下次安装报:Java.lang.RuntimeException: java.lang.NullPointerException......错 只需在文件..\Android Studio\bin\idea.properties(需要对应自己的安装目录下)最后面加一行代码:disable.android.first.run=true  就可以完美解决问题了…

工程启动的时候有报下面这个错误的,更新下工程的jar包依赖,然后在工程的pom文件里加上下面的jar包 Caused by: java.lang.RuntimeException: java.io.IOException: invalid constant type: 18 添加依赖的jar包: <dependency> <groupId>org.javassist</groupId> <artifactId>javassist</artifactId…

如果出现类似这样的错误,检查一下是否sql语句和参数的位置对调了. java.lang.RuntimeException: java.sql.SQLException: Too many parameters: expected 0, was given 1 Query: 1 Parameters: [SELECT COUNT(*) FROM book WHERE category_id=?]…

一.问题 Java调用JS事件出现 java.lang.RuntimeException: java.lang.Throwable: A WebView method was called on thread 'JavaBridge'. All WebView methods must be called on the same thread. (Expected Looper Looper (main, tid 1) {3474c308} called on Looper (JavaBridg…