{HADOOP_HOME}/conf/hadoop-env.sh
export HADOOP_HEAPSIZE
the default is 1M, so I think that there could be another issue
-Sagar
sagar arlekar wrote:
Hello,
I am new to hadoop. I am running hapdoop 0.17 in a Eucalyptus cloud
instance (its a centos image on xen)
bin/hadoop dfs -ls /
gives the following Exception
08/12/31 08:58:10 WARN fs.FileSystem: "localhost:9000" is a deprecated
filesystem name. Use "hdfs://localhost:9000/" instead.
08/12/31 08:58:10 WARN fs.FileSystem: uri=hdfs://localhost:9000
javax.security.auth.login.LoginException: Login failed: Cannot run
program "whoami": java.io.IOException: error=12, Cannot allocate
memory
at
org.apache.hadoop.security.UnixUserGroupInformation.login(UnixUserGroupInformation.java:250)
at
org.apache.hadoop.security.UnixUserGroupInformation.login(UnixUserGroupInformation.java:275)
at
org.apache.hadoop.security.UnixUserGroupInformation.login(UnixUserGroupInformation.java:257)
at
org.apache.hadoop.security.UserGroupInformation.login(UserGroupInformation.java:67)
at
org.apache.hadoop.fs.FileSystem$Cache$Key.<init>(FileSystem.java:1353)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1289)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:203)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:108)
at org.apache.hadoop.fs.FsShell.init(FsShell.java:87)
at org.apache.hadoop.fs.FsShell.run(FsShell.java:1717)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
at org.apache.hadoop.fs.FsShell.main(FsShell.java:1866)
Bad connection to FS. command aborted.
Running the command again gives.
bin/hadoop dfs -ls /
Error occurred during initialization of VM
Could not reserve enough space for object heap
Changing value of 'mapred.child.java.opts' property in hadoop-site.xml
did not help.
Kindly help me. What could I do to give more memory to hadoop?
BTW is there a way to search through the mail archive? I only saw the
mails listed according to year and months.
Regards,
Sagar
