hadoop start hdfs

Org.apache.hadoop.hdfs.server.namenode.FSNamesystem.initialize (fsnamesystem.java:311)At Org.apache.hadoop.hdfs.server.namenode.fsnamesystem.At Org.apache.hadoop.hdfs.server.namenode.NameNode.initialize (namenode.java:201)At Org.apache.hadoop.hdfs.server.namenode.namenode.At Org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode (namenode.java:956)At Org.apache.hadoop.hdfs.server.namenode.NameNode.main (namenode.java:965)2015-10-17 09:09:11,430 INFO Org.apache.hadoop.hdfs.server.namenod

Cloudera VM 5.4.2 How to start Hadoop services1. Mounting position/usr/libhadoopsparkhbasehiveimpalamahout2. Start the first process init automatically, read Inittab->runlevel 5start the sixth step --init Process Execution Rc.sysinitAfter the operating level has been set, the Linux system performsfirst user-level fileIt is/etc/rc.d/rc.sysinitScripting, it does a

1. Overview The following describes how NodeManager starts and registers various services. Mainly involved Java files Package org. apache. hadoop. yarn. server. resourcemanager under hadoop-yarn-server-resourcemanager: ResourcesManager. java 2. Code Analysis When Hadoop is started. The main of ResourcesManager is executed. 1). main Function Perform initia

Java.io.DataInputStream.readInt (datainputstream.java:392)At Org.apache.hadoop.ipc.client$connection.receiveresponse (client.java:501)At Org.apache.hadoop.ipc.client$connection.run (client.java:446)Two. Why the problem occursWhen we perform file system formatting, a current/version file is saved in the Namenode Data folder (that is, in the configuration file Dfs.name.dir the path to the local system), the Namespaceid is recorded, the formatted Version of Namenode. If we format the Namenode freq

After the hadoop cluster is started, run the JPS command to view the process. Only the tasktracker process is found on the datanode node, as shown in. Master process:Two Slave node processes found that there was no datanode process on the salve node. after checking the log, we found that the data directory permission on datanode is 765, and the expected permission is 755. Therefore, we use the CHMOD 755 Data command, change the directory permission t

Start HBase ErrorCould replicated to 0 nodes instead of 1Hmaster can't start.Looked at a lot of similar problems, the way we deal with most of the more violent.Because it is a test environment, not too violent, so as not to spend energy to deal with these bad things.Take a closer look at it../bin/hadoop Dfsadmin-reportFound1 unbalanced distribution of data on Datanode2 One of the Datanode is full.Decisively

Quick Start to hadoop hbase Cheungmine 2012-4-20 This article solves the problem of standlone running hbase. You can quickly learn about the basic shell commands of hbase. Step 1 prepare the software Machine environment: ubuntu11.10 + jdk1.6 Software: hbase-0.92.1.tar.gz My username is cl My machine name is ThinkPad-Zh. Decompress hbase: $ Tar xzf/home/CL/downloads/hbase-0.92.1.tar.gz Copy to the directory

Don't know what's going on today when you start a cluster, when you view a process through JPS, there is always a standby Namenode process fails to start. View Log times is unable to load the Fsimage file. The logs are as follows:It's obvious that the log is unable to load the metadata information, the solution:Workaround:1, Manual copy Namenode (active) on the server that is located on xxx/dfs/name/current

This article solves the problem of standlone running HBase. You can quickly learn about the basic Shell commands of HBase. Step 1 prepare the softwareMachine environment: Ubuntu11.10 + JDK1.6Software: hbase-0.92.1.tar.gzMy username is clMy machine name is thinkpad-zh.Decompress hbase:$ Tar xzf/home/cl/Downloads/hbase-0.92.1.tar.gzCopy to the directory:/Home/hbase-0.92.1 Step 2 configure HBaseChange Configuration:1) configure the JDK path.../Hbase-0.92.1/conf/hbase-env.shModify the following rows