I've fixed the problem.
The reason namenode won't start was that I accidentally started the cluster
with root account.
This somehow changed the ownership of some hadoop-related files(ex: log
files, and hadoop.tmp.dir/dfs/name/current/edits) from hadoop:hadoop to
root:root.
After I fixed the owners
Could you check the NameNode/SecondaryNameNode logs and try to find
the exact issue? Post the errors (if) it contains here, so we can try
to help you better.
On Thu, Aug 5, 2010 at 9:39 AM, edward choi wrote:
> I am currently stuck with hadoop namenode that won't start.
>
> When I type "start-all
I am currently stuck with hadoop namenode that won't start.
When I type "start-all.sh", everything prints out fine.
But when I type "jps", only JobTracker is activated.
When this happens, I usually format the namenode.
But the problem is that there are 500gigs of date in HDFS.
So I really want t
Couple of things you can try.
Did you restart the task trackers after installing the lzo libs? You can
check if the lzo lib is in the classpath or not by doing
ps auxw | grep tasktracker | grep lzo | wc –l
The above returns 1 if classpath contains the lzo lib
There is a local LZO indexer that y
On Aug 4, 2010, at 10:58 AM, David Rosenstrauch wrote:
So my partitioner needs to implement Configurable, then not
JobConfigurable. Tnx much!
ReflectionUtils.newInstance will use either Configurable or
JobConfigurable (or both!). So implementing either one will work fine.
-- Owen
On 08/04/2010 01:55 PM, Wilkes, Chris wrote:
On Aug 4, 2010, at 10:50 AM, David Rosenstrauch wrote:
On 08/04/2010 12:30 PM, Owen O'Malley wrote:
On Aug 4, 2010, at 8:38 AM, David Rosenstrauch wrote:
Anyone know if there's any particular reason why the new Partitioner
class doesn't implement
On 08/04/2010 12:30 PM, Owen O'Malley wrote:
On Aug 4, 2010, at 8:38 AM, David Rosenstrauch wrote:
Anyone know if there's any particular reason why the new Partitioner
class doesn't implement JobConfigurable? (And, if not, whether there's
any plans to fix this omission?) We're working on a som
On Aug 4, 2010, at 8:38 AM, David Rosenstrauch wrote:
Anyone know if there's any particular reason why the new Partitioner
class doesn't implement JobConfigurable? (And, if not, whether
there's any plans to fix this omission?) We're working on a
somewhat complex partitioner, and it would
Someone sent this email to the commons-user list a while back, but it
seems like it slipped through the cracks. We're starting to dig into
some hard-core Hadoop development and just came upon this same issue,
though.
Anyone know if there's any particular reason why the new Partitioner
class
Hello,
We have a cluster with ~1.5TB of data on it. After the power is off
unexpectedly, I restart the cluster again but the administrative webpage is
not available. When I ran $hadoop fsck /, I got bellow error message:
had...@b1:~/hadoop/bin$ ./hadoop fsck /
Exception in thread "main" java.io.I
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