Can u guide me where can I find datanode log files? As I cannot find it in
$hadoop/logs and so.
I can only find following files in logs folder :-
hadoop-hadoop-namenode-hadoopmaster.log
hadoop-hadoop-namenode-hadoopmaster.out
hadoop-hadoop-namenode-hadoopmaster.out.1
hadoop-hadoop-secondarynamenode-hadoopmaster.log
hadoop-hadoop-secondarynamenode-hadoopmaster.out
hadoop-hadoop-secondarynamenode-hadoopmaster.out.1
history
Thanks
Pankil
On Thu, May 14, 2009 at 11:27 PM, jason hadoop <jason.had...@gmail.com>wrote:
> You have to examine the datanode log files
> the namenode does not start the datanodes, the start script does.
> The name node passively waits for the datanodes to connect to it.
>
> On Thu, May 14, 2009 at 6:43 PM, Pankil Doshi <forpan...@gmail.com> wrote:
>
> > Hello Everyone,
> >
> > Actually I had a cluster which was up.
> >
> > But i stopped the cluster as i wanted to format it.But cant start it
> back.
> >
> > 1)when i give "start-dfs.sh" I get following on screen
> >
> > starting namenode, logging to
> > /Hadoop/hadoop-0.18.3/bin/../logs/hadoop-hadoop-namenode-hadoopmaster.out
> > slave1.local: starting datanode, logging to
> > /Hadoop/hadoop-0.18.3/bin/../logs/hadoop-hadoop-datanode-Slave1.out
> > slave3.local: starting datanode, logging to
> > /Hadoop/hadoop-0.18.3/bin/../logs/hadoop-hadoop-datanode-Slave3.out
> > slave4.local: starting datanode, logging to
> > /Hadoop/hadoop-0.18.3/bin/../logs/hadoop-hadoop-datanode-Slave4.out
> > slave2.local: starting datanode, logging to
> > /Hadoop/hadoop-0.18.3/bin/../logs/hadoop-hadoop-datanode-Slave2.out
> > slave5.local: starting datanode, logging to
> > /Hadoop/hadoop-0.18.3/bin/../logs/hadoop-hadoop-datanode-Slave5.out
> > slave6.local: starting datanode, logging to
> > /Hadoop/hadoop-0.18.3/bin/../logs/hadoop-hadoop-datanode-Slave6.out
> > slave9.local: starting datanode, logging to
> > /Hadoop/hadoop-0.18.3/bin/../logs/hadoop-hadoop-datanode-Slave9.out
> > slave8.local: starting datanode, logging to
> > /Hadoop/hadoop-0.18.3/bin/../logs/hadoop-hadoop-datanode-Slave8.out
> > slave7.local: starting datanode, logging to
> > /Hadoop/hadoop-0.18.3/bin/../logs/hadoop-hadoop-datanode-Slave7.out
> > slave10.local: starting datanode, logging to
> > /Hadoop/hadoop-0.18.3/bin/../logs/hadoop-hadoop-datanode-Slave10.out
> > hadoopmaster.local: starting secondarynamenode, logging to
> >
> >
> /Hadoop/hadoop-0.18.3/bin/../logs/hadoop-hadoop-secondarynamenode-hadoopmaster.out
> >
> >
> > 2) from log file named "hadoop-hadoop-namenode-hadoopmaster.log" I get
> > following
> >
> >
> >
> > 2009-05-14 20:28:23,515 INFO org.apache.hadoop.dfs.NameNode: STARTUP_MSG:
> > /************************************************************
> > STARTUP_MSG: Starting NameNode
> > STARTUP_MSG: host = hadoopmaster/127.0.0.1
> > STARTUP_MSG: args = []
> > STARTUP_MSG: version = 0.18.3
> > STARTUP_MSG: build =
> > https://svn.apache.org/repos/asf/hadoop/core/branches/branch-0.18 -r
> > 736250;
> > compiled by 'ndaley' on Thu Jan 22 23:12:08 UTC 2009
> > ************************************************************/
> > 2009-05-14 20:28:23,717 INFO org.apache.hadoop.ipc.metrics.RpcMetrics:
> > Initializing RPC Metrics with hostName=NameNode, port=9000
> > 2009-05-14 20:28:23,728 INFO org.apache.hadoop.dfs.NameNode: Namenode up
> > at:
> > hadoopmaster.local/192.168.0.1:9000
> > 2009-05-14 20:28:23,733 INFO org.apache.hadoop.metrics.jvm.JvmMetrics:
> > Initializing JVM Metrics with processName=NameNode, sessionId=null
> > 2009-05-14 20:28:23,743 INFO org.apache.hadoop.dfs.NameNodeMetrics:
> > Initializing NameNodeMeterics using context
> > object:org.apache.hadoop.metrics.spi.NullContext
> > 2009-05-14 20:28:23,856 INFO org.apache.hadoop.fs.FSNamesystem:
> >
> >
> fsOwner=hadoop,hadoop,adm,dialout,fax,cdrom,floppy,tape,audio,dip,video,plugdev,fuse,lpadmin,admin,sambashare
> > 2009-05-14 20:28:23,856 INFO org.apache.hadoop.fs.FSNamesystem:
> > supergroup=supergroup
> > 2009-05-14 20:28:23,856 INFO org.apache.hadoop.fs.FSNamesystem:
> > isPermissionEnabled=true
> > 2009-05-14 20:28:23,883 INFO org.apache.hadoop.dfs.FSNamesystemMetrics:
> > Initializing FSNamesystemMeterics using context
> > object:org.apache.hadoop.metrics.spi.NullContext
> > 2009-05-14 20:28:23,885 INFO org.apache.hadoop.fs.FSNamesystem:
> Registered
> > FSNamesystemStatusMBean
> > 2009-05-14 20:28:23,964 INFO org.apache.hadoop.dfs.Storage: Number of
> files
> > = 1
> > 2009-05-14 20:28:23,971 INFO org.apache.hadoop.dfs.Storage: Number of
> files
> > under construction = 0
> > 2009-05-14 20:28:23,971 INFO org.apache.hadoop.dfs.Storage: Image file of
> > size 80 loaded in 0 seconds.
> > 2009-05-14 20:28:23,972 INFO org.apache.hadoop.dfs.Storage: Edits file
> > edits
> > of size 4 edits # 0 loaded in 0 seconds.
> > 2009-05-14 20:28:23,974 INFO org.apache.hadoop.fs.FSNamesystem: Finished
> > loading FSImage in 155 msecs
> > 2009-05-14 20:28:23,976 INFO org.apache.hadoop.fs.FSNamesystem: Total
> > number
> > of blocks = 0
> > 2009-05-14 20:28:23,988 INFO org.apache.hadoop.fs.FSNamesystem: Number of
> > invalid blocks = 0
> > 2009-05-14 20:28:23,988 INFO org.apache.hadoop.fs.FSNamesystem: Number of
> > under-replicated blocks = 0
> > 2009-05-14 20:28:23,988 INFO org.apache.hadoop.fs.FSNamesystem: Number of
> > over-replicated blocks = 0
> > 2009-05-14 20:28:23,988 INFO org.apache.hadoop.dfs.StateChange: STATE*
> > Leaving safe mode after 0 secs.
> > *2009-05-14 20:28:23,989 INFO org.apache.hadoop.dfs.StateChange: STATE*
> > Network topology has 0 racks and 0 datanodes*
> > 2009-05-14 20:28:23,989 INFO org.apache.hadoop.dfs.StateChange: STATE*
> > UnderReplicatedBlocks has 0 blocks
> > 2009-05-14 20:28:29,128 INFO org.mortbay.util.Credential: Checking
> Resource
> > aliases
> > 2009-05-14 20:28:29,243 INFO org.mortbay.http.HttpServer: Version
> > Jetty/5.1.4
> > 2009-05-14 20:28:29,244 INFO org.mortbay.util.Container: Started
> > HttpContext[/static,/static]
> > 2009-05-14 20:28:29,245 INFO org.mortbay.util.Container: Started
> > HttpContext[/logs,/logs]
> > 2009-05-14 20:28:29,750 INFO org.mortbay.util.Container: Started
> > org.mortbay.jetty.servlet.webapplicationhand...@7fcebc9f
> > 2009-05-14 20:28:29,838 INFO org.mortbay.util.Container: Started
> > WebApplicationContext[/,/]
> > 2009-05-14 20:28:29,843 INFO org.mortbay.http.SocketListener: Started
> > SocketListener on 0.0.0.0:50070
> > 2009-05-14 20:28:29,843 INFO org.mortbay.util.Container: Started
> > org.mortbay.jetty.ser...@61acfa31
> > 2009-05-14 20:28:29,843 INFO org.apache.hadoop.fs.FSNamesystem:
> Web-server
> > up at: 0.0.0.0:50070
> > 2009-05-14 20:28:29,843 INFO org.apache.hadoop.ipc.Server: IPC Server
> > Responder: starting
> > 2009-05-14 20:28:29,844 INFO org.apache.hadoop.ipc.Server: IPC Server
> > listener on 9000: starting
> > 2009-05-14 20:28:29,865 INFO org.apache.hadoop.ipc.Server: IPC Server
> > handler 0 on 9000: starting
> > 2009-05-14 20:28:29,876 INFO org.apache.hadoop.ipc.Server: IPC Server
> > handler 1 on 9000: starting
> > 2009-05-14 20:28:29,877 INFO org.apache.hadoop.ipc.Server: IPC Server
> > handler 2 on 9000: starting
> > 2009-05-14 20:28:29,877 INFO org.apache.hadoop.ipc.Server: IPC Server
> > handler 3 on 9000: starting
> > 2009-05-14 20:28:29,878 INFO org.apache.hadoop.ipc.Server: IPC Server
> > handler 4 on 9000: starting
> > 2009-05-14 20:28:29,879 INFO org.apache.hadoop.ipc.Server: IPC Server
> > handler 5 on 9000: starting
> > 2009-05-14 20:28:29,879 INFO org.apache.hadoop.ipc.Server: IPC Server
> > handler 6 on 9000: starting
> > 2009-05-14 20:28:29,881 INFO org.apache.hadoop.ipc.Server: IPC Server
> > handler 7 on 9000: starting
> > 2009-05-14 20:28:29,881 INFO org.apache.hadoop.ipc.Server: IPC Server
> > handler 8 on 9000: starting
> > 2009-05-14 20:28:29,882 INFO org.apache.hadoop.ipc.Server: IPC Server
> > handler 9 on 9000: starting
> > 2009-05-14 20:33:35,774 INFO org.apache.hadoop.fs.FSNamesystem: Roll Edit
> > Log from 192.168.0.1
> > 2009-05-14 20:33:35,775 INFO org.apache.hadoop.fs.FSNamesystem: Number of
> > transactions: 0 Total time for transactions(ms): 0 Number of syncs: 0
> > SyncTimes(ms): 0
> > 2009-05-14 20:33:36,310 INFO org.apache.hadoop.fs.FSNamesystem: Roll
> > FSImage
> > from 192.168.0.1
> > 2009-05-14 20:33:36,311 INFO org.apache.hadoop.fs.FSNamesystem: Number of
> > transactions: 0 Total time for transactions(ms): 0 Number of syncs: 0
> > SyncTimes(ms): 0
> >
> >
> >
> > 3) my hadoop-site.xml for refrence
> >
> > <?xml version="1.0"?>
> > <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
> >
> > <!-- Put site-specific property overrides in this file. -->
> > <configuration>
> > <property>
> > <name>fs.default.name</name>
> > <value>hdfs://hadoopmaster.local:9000</value>
> > </property>
> > <property>
> > <name>mapred.job.tracker</name>
> > <value>hadoopmaster.local:9001</value>
> > </property>
> > <property>
> > <name>dfs.replication</name>
> > <value>3</value>
> > </property>
> > <property>
> > <name>mapred.child.java.opts</name>
> > <value>-Xmx512m</value>
> > </property>
> > <property>
> > <name>hadoop.tmp.dir</name>
> > <value>/Hadoop/Temp</value>
> > <description>A base for other temporary directories.</description>
> > </property>
> > <property>
> > <name>dfs.data.dir</name>
> > <value>/Hadoop/Data,/data/Hadoop</value>
> > <description>Determines where on the local filesystem an DFS data node
> > should store its blocks. If this is a comma-delimited
> > list of directories, then data will be stored in all named
> > directories, typically on different devices.
> > Directories that do not exist are ignored.
> > </description>
> > </property>
> > </configuration>
> >
> >
> > the main thing i find in log it says "*2009-05-14 20:28:23,989 INFO
> > org.apache.hadoop.dfs.StateChange: STATE* Network topology has 0 racks
> and
> > 0
> > datanodes" *which means it cannot start datanodes*.*but why is it so? I
> > have
> > all my datanodes in my slave.xml and it detects that on start up screen
> > when
> > i give start-dfs.sh.
> >
> >
> > Can anyone throw some lights on my problem.
> >
> > Thanks
> > Pankil
> >
>
>
>
> --
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