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<div class="moz-cite-prefix">Hi Viet,<br>
<br>
It looks your Hadoop namenode was not correctly formatted and
started. It's a very common hadoop problem. The solution I usually
use is 1) first kill running hadoop processes if you have any; 2)
clean the files and directories; 3) try namenode format again. In
your case, the clean command should be "rm -rf
/tmp/hadoop-cloudera*"<br>
<br>
<pre class="moz-signature" cols="72">Best wishes
Sincerely yours
Jianwu WANG, Ph.D.
<a class="moz-txt-link-abbreviated" href="mailto:jianwu@sdsc.edu">jianwu@sdsc.edu</a>
<a class="moz-txt-link-freetext" href="http://users.sdsc.edu/~jianwu/">http://users.sdsc.edu/~jianwu/</a>
Assistant Director for Research
Workflows for Data Science (WorDS) Center of Excellence
San Diego Supercomputer Center (SDSC)
University of California, San Diego (UCSD)</pre>
On 9/28/14, 8:02 AM, Viet Truong Xuan wrote:<br>
</div>
<blockquote
cite="mid:CAPaN2a=YDn6aNL_+dh+Stuc2S-iD+9inhQgUq-pKyc5oT8b-1Q@mail.gmail.com"
type="cite">
<div dir="ltr">
<div>
<div>
<div>
<div>Hi Mr. Jianwu Wang,<br>
<br>
</div>
Thanks for for answer, the cloudera@localhost's password
is already entered (it's not showed in the screen as
usual). I have changed the the permission to the <i>root</i>
user, but it's not run yet.<br>
I have tried to run bin/format-namenode.sh, it seems
better but there exist still errors:<br>
<br>
<i>localhost/<a moz-do-not-send="true"
href="http://127.0.0.1:54310" target="_blank">127.0.0.1:54310</a>.
Already tried 0 time(s).<br>
...<br>
Bad connection to FS. command aborted<br>
<br>
</i></div>
If you have some advises for this problem?<i><br>
<br>
</i></div>
Thanks<i>,<br>
<br>
</i></div>
Viet<i><br>
</i></div>
<div class="gmail_extra"><br>
<div class="gmail_quote">On Sun, Sep 28, 2014 at 7:00 PM, Viet
Truong Xuan <span dir="ltr"><<a moz-do-not-send="true"
href="mailto:txviet26@gmail.com" target="_blank">txviet26@gmail.com</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">
<div>
<div>Hi Mr. Jianwu Wang,<br>
<br>
</div>
Thanks for for answer, the cloudera@localhost's password
is already entered (it's not showed in the screen as
usual). I have changed the the permission to the <i>root</i>
user, but it's not run yet.<br>
<br>
</div>
I have tried to run bin/format-namenode.sh, it seems
better but the there are still errors:<br>
<br>
</div>
<div class="HOEnZb">
<div class="h5">
<div class="gmail_extra"><br>
<div class="gmail_quote">On Sun, Sep 28, 2014 at 9:12
AM, Jianwu Wang <span dir="ltr"><<a
moz-do-not-send="true"
href="mailto:jianwu@sdsc.edu" target="_blank">jianwu@sdsc.edu</a>></span>
wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF" text="#000000">
<div>Hi Viet,<br>
<br>
Your messages include
"cloudera@localhost's password", which
probably means you didn't set up ssh localhost
login without password. It might cause some
problems.<br>
<br>
One more thing worthy to be noted is that
you should run bin/format-namenode.sh before
bin/start-hadoop.sh to format namenode.<br>
<pre cols="72">Best wishes
Sincerely yours
Jianwu WANG, Ph.D.
<a moz-do-not-send="true" href="mailto:jianwu@sdsc.edu" target="_blank">jianwu@sdsc.edu</a>
<a moz-do-not-send="true" href="http://users.sdsc.edu/%7Ejianwu/" target="_blank">http://users.sdsc.edu/~jianwu/</a>
Assistant Director for Research
Workflows for Data Science (WorDS) Center of Excellence
San Diego Supercomputer Center (SDSC)
University of California, San Diego (UCSD)</pre>
<div>
<div> On 9/27/14, 8:33 AM, Viet Truong Xuan
wrote:<br>
</div>
</div>
</div>
<blockquote type="cite">
<div>
<div>
<div dir="ltr">
<div>
<div>
<div>
<div>Dear all,<br>
<br>
I'm trying to run the examples
of Hadoop on Kepler 2.4, but get
some problems with it.<br>
</div>
When I start the Hadoop service
(with correct passwords as
required) with:<br>
<b>bin/start-hadoop.sh<br>
</b><br>
<i>The output is as the following
and <span
style="color:rgb(255,0,0)">the
worklows cannot be run:</span></i><br>
<br>
bin<br>
bin=.<br>
bin=/home/cloudera/KeplerData/workflows/module/hadoop-1.0.0/tools/bin<br>
starting namenode, logging to
/home/cloudera/KeplerData/workflows/module/hadoop-1.0.0/tools/bin/../logs/hadoop-cloudera-namenode-quickstart.cloudera.out<br>
cloudera@localhost's password: <br>
localhost: starting datanode,
logging to
/home/cloudera/KeplerData/workflows/module/hadoop-1.0.0/tools/bin/../logs/hadoop-cloudera-datanode-quickstart.cloudera.out<br>
cloudera@localhost's password: <br>
localhost: starting
secondarynamenode, logging to
/home/cloudera/KeplerData/workflows/module/hadoop-1.0.0/tools/bin/../logs/hadoop-cloudera-secondarynamenode-quickstart.cloudera.out<br>
localhost: Exception in thread
"main"
java.lang.NoClassDefFoundError:
com.sun.security.auth.UnixPrincipal<br>
localhost: at
org.apache.hadoop.security.UserGroupInformation.<clinit>(UserGroupInformation.java:313)<br>
localhost: at
java.lang.Class.initializeClass(libgcj.so.10)<br>
localhost: at
org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.initialize(SecondaryNameNode.java:144)<br>
localhost: at
org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.<init>(SecondaryNameNode.java:125)<br>
localhost: at
org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.main(SecondaryNameNode.java:579)<br>
DEPRECATED: Use of this script to
execute hdfs command is
deprecated.<br>
Instead use the hdfs command for
it.<br>
<br>
Exception in thread "main"
java.lang.NoClassDefFoundError:
com.sun.security.auth.UnixPrincipal<br>
at
org.apache.hadoop.security.UserGroupInformation.<clinit>(UserGroupInformation.java:313)<br>
at
java.lang.Class.initializeClass(libgcj.so.10)<br>
at
org.apache.hadoop.fs.FileSystem$Cache$Key.<init>(FileSystem.java:1953)<br>
at
org.apache.hadoop.fs.FileSystem$Cache$Key.<init>(FileSystem.java:1945)<br>
at
org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:1807)<br>
at
org.apache.hadoop.fs.FileSystem.get(FileSystem.java:265)<br>
at
org.apache.hadoop.fs.FileSystem.get(FileSystem.java:146)<br>
at
org.apache.hadoop.fs.FsShell.init(FsShell.java:85)<br>
at
org.apache.hadoop.hdfs.tools.DFSAdmin.run(DFSAdmin.java:981)<br>
at
org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:69)<br>
at
org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:83)<br>
at
org.apache.hadoop.hdfs.tools.DFSAdmin.main(DFSAdmin.java:1068)<br>
starting jobtracker, logging to
/home/cloudera/KeplerData/workflows/module/hadoop-1.0.0/tools/bin/../logs/hadoop-cloudera-jobtracker-quickstart.cloudera.out<br>
cloudera@localhost's password: <br>
localhost: starting tasktracker,
logging to
/home/cloudera/KeplerData/workflows/module/hadoop-1.0.0/tools/bin/../logs/hadoop-cloudera-tasktracker-quickstart.cloudera.out<b><br>
<br>
</b></div>
If there are some body can give me a
help?<br>
<br>
</div>
Thanks,<br>
<br>
</div>
Truong Xuan Viet<b><br>
</b></div>
<br>
<fieldset></fieldset>
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</div>
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</pre>
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