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Re: Rack Aware Hadoop cluster
Error in script.
On Wed, May 8, 2013 at 7:11 AM, Chris Embree <[EMAIL PROTECTED]> wrote:

> Your script has an error in it.  Please test your script using both IP
> Addresses and Names, outside of hadoop.
>
>
> On Wed, May 8, 2013 at 10:01 AM, Mohammad Mustaqeem <
> [EMAIL PROTECTED]> wrote:
>
>> I have done this and found following error in log -
>>
>> 2013-05-08 18:53:45,221 WARN org.apache.hadoop.net.ScriptBasedMapping: Exception running /home/mustaqeem/development/hadoop-2.0.3-alpha/etc/hadoop/rack.sh 127.0.0.1
>> org.apache.hadoop.util.Shell$ExitCodeException: /home/mustaqeem/development/hadoop-2.0.3-alpha/etc/hadoop/rack.sh: 8: /home/mustaqeem/development/hadoop-2.0.3-alpha/etc/hadoop/rack.sh: Syntax error: "(" unexpected (expecting "done")
>>
>> at org.apache.hadoop.util.Shell.runCommand(Shell.java:202)
>> at org.apache.hadoop.util.Shell.run(Shell.java:129)
>> at org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:322)
>> at org.apache.hadoop.net.ScriptBasedMapping$RawScriptBasedMapping.runResolveCommand(ScriptBasedMapping.java:241)
>> at org.apache.hadoop.net.ScriptBasedMapping$RawScriptBasedMapping.resolve(ScriptBasedMapping.java:179)
>> at org.apache.hadoop.net.CachedDNSToSwitchMapping.resolve(CachedDNSToSwitchMapping.java:119)
>> at org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager.resolveNetworkLocation(DatanodeManager.java:454)
>> at org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager.registerDatanode(DatanodeManager.java:713)
>> at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.registerDatanode(FSNamesystem.java:3459)
>> at org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.registerDatanode(NameNodeRpcServer.java:881)
>> at org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolServerSideTranslatorPB.registerDatanode(DatanodeProtocolServerSideTranslatorPB.java:90)
>> at org.apache.hadoop.hdfs.protocol.proto.DatanodeProtocolProtos$DatanodeProtocolService$2.callBlockingMethod(DatanodeProtocolProtos.java:18295)
>> at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:454)
>> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1014)
>> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1735)
>> at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1731)
>> at java.security.AccessController.doPrivileged(Native Method)
>> at javax.security.auth.Subject.doAs(Subject.java:415)
>> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1441)
>> at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1729)
>> 2013-05-08 18:53:45,223 ERROR org.apache.hadoop.hdfs.server.blockmanagement.DatanodeManager: The resolve call returned null! Using /default-rack for host [127.0.0.1]
>>
>>
>>
>> On Wed, May 8, 2013 at 7:18 PM, Leonid Fedotov <[EMAIL PROTECTED]>wrote:
>>
>>> You can put this parameter to core-site.xml or hdfs-site.xml
>>> It both parsed during the HDFS startup.
>>>
>>> Leonid
>>>
>>>
>>> On Wed, May 8, 2013 at 6:43 AM, Mohammad Mustaqeem <
>>> [EMAIL PROTECTED]> wrote:
>>>
>>>> Hello everyone,
>>>>     I was searching for how to make the hadoop cluster rack-aware and I
>>>> find out from here
>>>> http://hadoop.apache.org/docs/r2.0.4-alpha/hadoop-project-dist/hadoop-common/ClusterSetup.html#Hadoop_Rack_Awareness that
>>>> we can do this by giving property of "topology.script.file.name". But
>>>> here it is not written where to put this
>>>> <property>
>>>>         <name>topology.script.file.name</name>
>>>>
>>>> <value>/home/mustaqeem/development/hadoop-2.0.3-alpha/etc/hadoop/rack.sh</value>
>>>> </property>
>>>>
>>>> Means in which configuration file.
>>>> I am using hadoop-2.0.3-alpha.
>>>>
>>>>
>>>> --
>>>> *With regards ---*
>>>> *Mohammad Mustaqeem*,
>>>> M.Tech (CSE)
>>>> MNNIT Allahabad
>>>> 9026604270
>>>>
>>>>
>>>>
>>>
>>
>>
>> --
>> *With regards ---*
>> *Mohammad Mustaqeem*,
>> M.Tech (CSE)
>> MNNIT Allahabad
>> 9026604270
>>
>>
>>
>