我们经常会遇到一些问题,而且可能会重复性遇到,这些方案可以收藏为以后备用.我们经常遇到如下问题:1.两次以上格式化造成NameNode 和 DataNode namespaceID 不一致,有几种解决办法?2.如何动态添加DataNode 动态将某个节点加入到集群中3.用window 提交eclipse 任务发现权限不通过:4.eclipse 运行中发现 Name node is  in safe mode 1.两次以上格式化造成NameNode 和 DataNode namespaceID 不

用java运行Hadoop例程报错:org.apache.hadoop.fs.LocalFileSystem cannot be cast to org.apache.所写代码如下: package com.pcitc.hadoop; import java.io.IOException; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.FileSystem; import org.apache.h

eclipse运行hadoop程序报错:Connection refused: no further information log4j:WARN No appenders could be found for logger (org.apache.hadoop.conf.Configuration.deprecation). log4j:WARN Please initialize the log4j system properly. log4j:WARN See http://logging

root用户执行hadoop命令报错: [root@vmocdp125 conf]# hadoop fs -ls /user/ [INFO] 17:50:42 main [RetryInvocationHandler]Exception while invoking getFileInfo of class ClientNamenodeProtocolTranslatorPB over vmocdp127.test.com/172.16.145.127:8020. Trying to fail

Maven引入Hadoop依赖报错:Missing artifact jdk.tools:jdk.tools:jar:1.6 原因是缺少tools.jar的依赖,tools.jar在jdk的安装目录中提供了,所以改成如下形式解决此问题:添加依赖 <dependency> <groupId>org.apache.hadoop</groupId> <artifactId>hadoop-mapreduce-client-core</artifactId>

1.      hadoop启动报错 1.1.    问题1 util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable 主要是依赖包 版本 过低的问题. 首先要定位问题,出现该问题的原因主要是hadoop native下面的hadoop静态库的问题: libhadoop.so.1.0.0 原因一: 网上有很

hadoop启动journalnode时报错:localhost: ssh: Could not resolve hostname localhost: Temporary failure in name resolution 解决办法:将高亮部分补充到/etc/profile中,然后source生效 export JAVA_HOME=/opt/module/jdk1.8.0_144 export HADOOP_HOME=/opt/ha/hadoop-2.7.4 export HADOOP_CO

Error: java.io.IOException: Initialization of all the collectors failed. Error in last collector was :interface javax.xml.soap.Text Initialization of all the collectors failed  : 初始化所有收集器失败 2016-03-12 20:08:46,874 WARN org.apache.hadoop.hdfs.DFSClien

为更好了解各种故障,可以修改数据块的大小和提升NameNode的日志级别 <property> <name>dfs.block.size</name> <value>4194304</value> </property> <property> <name>dfs.namenode.logging.level</name> <value>all</value> </pro

在win7用Ant编译hadoop工程的时候,遇到了一个报错,如下: org.eclipse.core.runtime.CoreException: D:\workspace\hadoop-1.1.2\build.xml:83: Execute failed: java.io.IOException: Cannot run program "sed" 打开build.xml文件,找到sed,然后把注释掉即可,这段内容是为了替换苹果系统的空格的,但是..Windows出错啦,也难怪,因为

完整报错是: Caused by: java.lang.IllegalArgumentException: Does not contain a valid host:port authority: hadoop:password@node56:9000 解决方案: 我在添加hadoop cluster的时候报错如上,去掉了用户名和密码就好了~~~~~~~~~,出现如下就可以使用了(譬如添加hadoop copy file也能读取到文件夹里面的文件了)----右侧的 × 和!不影响使用

内容源自:https://blog.csdn.net/u014470581/article/details/51480600 报错信息: Exception in thread "main" java.lang.reflect.InvocationTargetException at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.in

报错信息如下: (各种配置在最后面) hadoop@administrator-virtual-machine:~/Downloads/tar/hadoop-3.0.0-alpha1-src$ mvn clean package -Pdist,native -DskipTests -Dtar---------------------------------------------------constituent[0]: file:/usr/share/maven/lib/plexus-ciph

一.报错信息: Starting namenodes on [master]         ERROR: Attempting to operate on hdfs namenode as root                ERROR: but there is no HDFS_NAMENODE_USER defined. Aborting operation.                Starting datanodes         ERROR: Attempting to

报如错误:JAVA_HOME is not set and could not be found,可能是因为JAVA_HOME环境没配置正确,还有一种情况是即使各结点都正确地配置了JAVA_HOME,但在集群环境下还是报该错误,解决方法是显示地重新声明一遍JAVA_HOME 1.检查JAVA_HOME是否配置正确(伪分布式环境) 启动start-all.sh时报错,如下所示 解决方法: 输入java –version,查看jdk是否安装成功 输入export,查看jdk环境变量是否设置成功 2.

1.关于DataNode 错误信息解析 错误内容 java.io.IOException: Incompatible clusterIDs -b89c-43f90751214b; datanode clusterID = CID-fe4d7495--4bc2-9f03-5bdade0be587 原因及处理方法 原因: 由于多次 format 导致, NameNode 节点 clusterID值与DataNode 节点clusterID 值不相等. 处理方法: . 修改 DataNode 节点的

安装时报错:Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.7:run (site) on project hadoop-hdfs: An Ant BuildException has occured: input file /usr/local/hadoop-2.6.0-stable/hadoop-2.6.0-src/hadoop-hdfs-project/hadoop-hdfs/target/find

装zabbix时报错 [root@zabbix ~]# rpm -ivh zabbix-server-mysql-2.2.3-1.el6.x86_64.rpm zabbix-web-mysql-2.2.3-1.el6.noarch.rpm warning: zabbix-server-mysql-2.2.3-1.el6.x86_64.rpm: Header V4 DSA/SHA1 Signature, key ID 79ea5ed4: NOKEYerror: Failed dependencie

1.Hadoop安装完后,启动时报Error: JAVA_HOME is not set and could not be found. 解决办法: 修改/etc/hadoop/hadoop-env.sh中设JAVA_HOME. 应当使用绝对路径 2.namenode没有启动 首先运行bin/start-all.sh发现namenode没有启动 只有它们 9428 DataNode 9712 JobTracker 9626 SecondaryNameNode 9983 Jps 9915 Task

报错: 经过查看集群的jps如下: ==================== hadoop01 jps =================== FsShell ResourceManager NameNode Jps ==================== hadoop02 jps =================== NodeManager DataNode JournalNode QuorumPeerMain Jps ==================== hadoop03 jps =

这个错误是由于配置文件没有配置好.解决方案如下: 1 打开profile文件 vim /etc/profile 2 在文件最后加入的内容应该如下(高亮的两句一般是大家缺少的): export JAVA_HOME=/usr/java/jdk export HADOOP_HOME=/itcast/hadoop-2.6.4 export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/nativeexport HADOOP_OPTS="-Djava.libr