问题描述: org.apache.hadoop.ipc.RemoteException(java.io.IOException): File /tmp/hadoop-yarn/staging/hadoop/.staging/job_1519998981934_0001/job.jar could only be replicated to 0 nodes instead of minReplication (=1). There are 0 datanode(s) running and no…

向hadoop导入文件,报错 .... There are 0 datanode(s) running and no node(s) are excluded in this operation. .... 查看配置 $hadoop_home/hadoop/etc/hdfs-site.xml <property><name>dfs.namenode.name.dir</name><value>file:/home/sparkuser/myspark/hado…

原因: datanode未运行,重启hdfs…

刚开始装好hadoop的时候,namenode机上传文件没有错误,今天打开时突然不能上传文件,报错 put: File /a.txt._COPYING_ could only be replicated to 0 nodes instead of minReplication (=1). There are 3 datanode(s) running and 3 node(s) are excluded in this operation. 上网查了一下,先把,nnamenode和datanod…

运行时候报异常could only be replicated to 0 nodes instead of minReplication (=1).  There are 2 datanode(s) running and no node(s) are excluded in this operation. 解决方法: 1首先看一下dfs.replication的数目是否超过了datanode的数目,应该要小于或者等于datanode的数目. 2更改mapreduce.map.memory.mb…

原因: hdfs-site.xml中的配置为: <property> <name>dfs.datanode.du.reserved</name> <value>400000000000</value> </property> dfs.datanode.du.reserved值太大了,预留近400G. 设小一点就可以了10737418240,例如10G.…

不多说,直接上干货! [kfk@bigdata-pro01 bin]$ jps NameNode ResourceManager JournalNode HMaster DataNode HRegionServer NodeManager Jps QuorumPeerMain [kfk@bigdata-pro01 bin]$ hostname bigdata-pro01.kfk.com [kfk@bigdata-pro01 bin]$ [kfk@bigdata-pro01 bin]$ cd ..…

前言:前段时间将hadoop01的虚拟机弄的崩溃掉了,也没有备份,重新从hadoop02虚拟上克隆过来的,结果hadoop-eclipse插件一样的编译,居然用不起了,找了3天的原因,最后还是没有解决,只能用hadoop shell 命令去测试了,反正影响不大,只不过用着不方便而已. 心累中........... 正文: 解压安装Hadoop [hadoop@hadoop01 ~]$ cp /home/hadoop/Resources/hadoop-3.2.0.tar.gz ~/ [hadoop…

一.配置虚拟机软件 下载地址:https://www.virtualbox.org/wiki/downloads 1.虚拟机软件设定 1)进入全集设定 2)常规设定 2.Linux安装配置 1)名称类型 名称最后具有说明意义.版本根据个人情况. 2)内存 在下物理机系统Win7x64,处理器i53210,内存8G. 3)磁盘选择 4)磁盘文件 virtualbox格式vdi,VMWare格式vmdk,微软格式vhd(virtualbox不支持),Parallels格式hdd(virtualbox…

问题描述:第一次启动输入jps都有,第二次没有datanode 日志如下: 查看日志如下: -- ::, INFO org.mortbay.log: Started HttpServer2$SelectChannelConnectorWithSafeStartup@ -- ::, INFO org.apache.hadoop.hdfs.server.datanode.DataNode: dnUserName = root -- ::, INFO org.apache.hadoop.hdfs.se…