Hi: "/your/path/to/hadoop" represents the location where hadoop is installed. BTW, I believe this is a file writing permission problem. Because I use the same *-site.xml setting to install with root and it works. But when I use the dedicated user hadoop, it always introduces this problem.
But I do created manually the directory path and grant with 755. Weird.... Richard. On Wed, Dec 8, 2010 at 6:51 PM, Konstantin Boudnik <[email protected]> wrote: > it seems that you are looking at 2 different directories: > > first post: /your/path/to/hadoop/tmp/dir/hadoop-hadoop/dfs/name/current > second: ls -l tmp/dir/hadoop-hadoop/dfs/hadoop > -- > Take care, > Konstantin (Cos) Boudnik > > > > On Wed, Dec 8, 2010 at 14:19, Richard Zhang <[email protected]> > wrote: > > would that be the reason that 54310 port is not open? > > I just used > > * iptables -A INPUT -p tcp --dport 54310 -j ACCEPT > > to open the port. > > But it seems the same erorr exists. > > Richard > > * > > On Wed, Dec 8, 2010 at 4:56 PM, Richard Zhang <[email protected] > >wrote: > > > >> Hi James: > >> I verified that I have the following permission set for the path: > >> > >> ls -l tmp/dir/hadoop-hadoop/dfs/hadoop > >> total 4 > >> drwxr-xr-x 2 hadoop hadoop 4096 2010-12-08 15:56 current > >> Thanks. > >> Richard > >> > >> > >> > >> On Wed, Dec 8, 2010 at 4:50 PM, james warren <[email protected]> wrote: > >> > >>> Hi Richard - > >>> > >>> First thing that comes to mind is a permissions issue. Can you verify > >>> that > >>> your directories along the desired namenode path are writable by the > >>> appropriate user(s)? > >>> > >>> HTH, > >>> -James > >>> > >>> On Wed, Dec 8, 2010 at 1:37 PM, Richard Zhang <[email protected] > >>> >wrote: > >>> > >>> > Hi Guys: > >>> > I am just installation the hadoop 0.21.0 in a single node cluster. > >>> > I encounter the following error when I run bin/hadoop namenode > -format > >>> > > >>> > 10/12/08 16:27:22 ERROR namenode.NameNode: > >>> > java.io.IOException: Cannot create directory > >>> > /your/path/to/hadoop/tmp/dir/hadoop-hadoop/dfs/name/current > >>> > at > >>> > > >>> > > >>> > org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.clearDirectory(Storage.java:312) > >>> > at > >>> > > org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:1425) > >>> > at > >>> > > org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:1444) > >>> > at > >>> > > >>> > org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1242) > >>> > at > >>> > > >>> > > >>> > org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1348) > >>> > at > >>> > > org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1368) > >>> > > >>> > > >>> > Below is my core-site.xml > >>> > > >>> > <configuration> > >>> > <!-- In: conf/core-site.xml --> > >>> > <property> > >>> > <name>hadoop.tmp.dir</name> > >>> > <value>/your/path/to/hadoop/tmp/dir/hadoop-${user.name}</value> > >>> > <description>A base for other temporary directories.</description> > >>> > </property> > >>> > > >>> > <property> > >>> > <name>fs.default.name</name> > >>> > <value>hdfs://localhost:54310</value> > >>> > <description>The name of the default file system. A URI whose > >>> > scheme and authority determine the FileSystem implementation. The > >>> > uri's scheme determines the config property (fs.SCHEME.impl) naming > >>> > the FileSystem implementation class. The uri's authority is used to > >>> > determine the host, port, etc. for a filesystem.</description> > >>> > </property> > >>> > </configuration> > >>> > > >>> > > >>> > Below is my hdfs-site.xml > >>> > *<?xml version="1.0"?> > >>> > <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> > >>> > > >>> > <!-- Put site-specific property overrides in this file. --> > >>> > > >>> > <configuration> > >>> > <!-- In: conf/hdfs-site.xml --> > >>> > <property> > >>> > <name>dfs.replication</name> > >>> > <value>1</value> > >>> > <description>Default block replication. > >>> > The actual number of replications can be specified when the file is > >>> > created. > >>> > The default is used if replication is not specified in create time. > >>> > </description> > >>> > </property> > >>> > > >>> > </configuration> > >>> > > >>> > > >>> > below is my mapred-site.xml: > >>> > <?xml version="1.0"?> > >>> > <?xml-stylesheet type="text/xsl" href="configuration.xsl"?> > >>> > > >>> > <!-- Put site-specific property overrides in this file. --> > >>> > > >>> > <configuration> > >>> > > >>> > <!-- In: conf/mapred-site.xml --> > >>> > <property> > >>> > <name>mapred.job.tracker</name> > >>> > <value>localhost:54311</value> > >>> > <description>The host and port that the MapReduce job tracker runs > >>> > at. If "local", then jobs are run in-process as a single map > >>> > and reduce task. > >>> > </description> > >>> > </property> > >>> > > >>> > </configuration> > >>> > > >>> > > >>> > Thanks. > >>> > Richard > >>> > * > >>> > > >>> > >> > >> > > >
