Thanks Todd, that makes more sense now. I gave up on trying to build the
native libraries on os x (not officially supported presumably because it's such
a PITA) and instead ran from a centos machine and that worked flawlessly out of
the box.
Cheers,
Oliver
On 2012-01-09, at 7:21 PM, Todd
I am using hadoop 0.20.append and hbase 0.90.0. I uploaded few data into
Hbase and then killed HMaster and Namenode for an evaluation purpose. After
this I added few more data to the Hbase and I could see them in the hbase
shell.
Now when I started the Namenode, I am facing problems. The log
i was scanning through different questions that people asked in this
mailing list regarding choosing the right schema so that map reduce jobs
can be run appropriately and hot regions avoided due to sequential
accesses.
somewhere, i got the impression that it is ok for a row to have millions of
Christian hi
In short this is because you cannot assume that your loop will get exactly
there by a whole sec. There are a lot of other internal process running in
JVM they will make your if irrelevant.
Generally using busy wait loop is not the best way to do periodic task like
you want to. You
The NameNode keeps in safe mode might because it can not reach the block
reported ratio threshold as some files are corrupted.
You can use hadoop dfsadmin -safemode leave
to leave safe mode at first, and then hadoop fsck / -move or -delete to
move/delete inconsistent files.
-Yifeng
On Jan 10,
Hey all,
I have a small cluster of HBase, Hadoop HDFS, Zookeeper that is being
deployed on the same nodes (kind of a common best practice for small
clusters).
Everything is quite straight forward and works fine.
I am wondering how can I efficiently predict the right time to add another
node from
Hi there-
You probably want to see the Hbase Book/RefGuide and the Performance and
Operational Mgt chapters. Capture and track metrics in tools like
OpenTSDB, for example.
http://hbase.apache.org/book.html
On 1/10/12 8:34 AM, Ronen Itkin ro...@taykey.com wrote:
Hey all,
I have a small
Still happens with HBase 0.90.5/Hadoop 1.0.0. But I think I have some more
insights on this topic. Following an up to date stack trace:
java.lang.NullPointerException
at
org.apache.hadoop.hbase.regionserver.HRegionServer.convertThrowableToIOE(HRegionServer.java:986)
at
Thanks for the analysis.
Do you mind opening a Jira ?
On Jan 10, 2012, at 7:51 AM, Yves Langisch y...@langisch.ch wrote:
Still happens with HBase 0.90.5/Hadoop 1.0.0. But I think I have some more
insights on this topic. Following an up to date stack trace:
Hello,
I tried to import a table from hbase 0.90.3 to hbase 0.90.4 on a
different cluster by copying the data between those two clusters. I
uploaded the data into HDFS and called add_table.rb on that, that
finished ok. After that i went to hbase shell and did enable
new_table which also finished
Hello all,
I am having trouble starting and stopping Standalone HBase.
I successfully start Standalone, or at least there is no error message
However, when I try to use the shell, I get this
hbase(main):001:0 list
TABLE
ERROR: org.apache.hadoop.hbase.ZooKeeperConnectionException:
Another Standalone question-
Can I have multiple clients, running on multiple machines access a
Standalone HBase? Is there a problem with having 10's of clients
hitting a Standalone system? What is the advantage of running
Pseudo-Distributed?
Note that this is not a production system. I
On Tue, Jan 10, 2012 at 9:42 AM, Peter Wolf opus...@gmail.com wrote:
Another Standalone question-
Can I have multiple clients, running on multiple machines access a
Standalone HBase?
Yes.
Is there a problem with having 10's of clients hitting a
Standalone system?
Now that's more than one
On Tue, Jan 10, 2012 at 9:03 AM, Peter Wolf opus...@gmail.com wrote:
Hello all,
I am having trouble starting and stopping Standalone HBase.
I successfully start Standalone, or at least there is no error message
Anything in the hbase logs -- see under the logs/ dir?
Have you changed config?
I just did it on EC2 and will publish the notes soon. Would you need them?
Mark
On Tue, Jan 10, 2012 at 11:42 AM, Peter Wolf opus...@gmail.com wrote:
Another Standalone question-
Can I have multiple clients, running on multiple machines access a
Standalone HBase? Is there a problem with
I just did it on EC2 and will publish the notes soon. Would you need them?
mark
On Tue, Jan 10, 2012 at 11:42 AM, Peter Wolf opus...@gmail.com wrote:
Another Standalone question-
Can I have multiple clients, running on multiple machines access a
Standalone HBase? Is there a problem with
On Tue, Jan 10, 2012 at 4:38 AM, Stanislav Barton
stanislav.bar...@internetmemory.net wrote:
I tried to import a table from hbase 0.90.3 to hbase 0.90.4 on a
different cluster by copying the data between those two clusters. I
uploaded the data into HDFS and called add_table.rb on that, that
On Tue, Jan 10, 2012 at 7:51 AM, Yves Langisch y...@langisch.ch wrote:
IMHO this case should be handled somehow and must not lead to a NPE.
Agree. Thanks for filing issue.
St.Ack
On Tue, Jan 10, 2012 at 3:17 AM, T Vinod Gupta tvi...@readypulse.com wrote:
i was scanning through different questions that people asked in this
mailing list regarding choosing the right schema so that map reduce jobs
can be run appropriately and hot regions avoided due to sequential
accesses.
On Thu, Dec 22, 2011 at 1:34 PM, James Estes james.es...@gmail.com wrote:
We have a 6 node 0.90.3-cdh3u1 cluster. We have 8092 regions. I
realize we have too many regions and too few nodes…we're addressing
that.
Good.
We currently have an issue where we seem to have lost region
data.
On Mon, Jan 9, 2012 at 1:57 PM, James Estes james.es...@gmail.com wrote:
Should we file a ticket for this issue? FWIW we got this fixed (not
sure if we actually lost any data though). We had to bounce the region
server (non-gracefully). The region server seemed to have some stale
file handles
Awesome
Many thanks JD
On 1/10/12 12:57 PM, Jean-Daniel Cryans wrote:
On Tue, Jan 10, 2012 at 9:42 AM, Peter Wolfopus...@gmail.com wrote:
Another Standalone question-
Can I have multiple clients, running on multiple machines access a
Standalone HBase?
Yes.
Is there a problem with having
Yes Please! :-D
On 1/10/12 1:02 PM, Mark Kerzner wrote:
I just did it on EC2 and will publish the notes soon. Would you need them?
Mark
On Tue, Jan 10, 2012 at 11:42 AM, Peter Wolfopus...@gmail.com wrote:
Another Standalone question-
Can I have multiple clients, running on multiple
Excellent. Thanks
P
On 1/10/12 1:35 PM, Michael Segel wrote:
We've done this and have a couple of projects in production.
Advantage of running Pseudo-Distributed? None unless you don't care about
performance or have a lot of data.
(Meaning you're trying to learn only.) Its a bit easier to
Hi Peter,
I just tried 0.90.5 standalone on linux; in my case there was a problem
with my hostname resolving to 127.0.1.1 (not 127.0.0.1, which is what
hbase expects in standalone).
If you use linux, have a look into your /etc/hosts file to see if this
is the issue and fix it as needed.
On Tue, Jan 10, 2012 at 10:55 AM, Tom fivemile...@gmail.com wrote:
BTW, a little comment in the HBase book would have saved me quite a bit of
time...
We are on it(Doug?)
St.Ack
Perhaps not related, but I followed the Run the
'${HBASE_HOME}/bin/hbase migrate' script suggestion and...
Hemiola:logs peter$ ../bin/hbase migrate
Exception in thread main java.lang.NoClassDefFoundError:
org/apache/hadoop/hbase/util/Migrate
Caused by: java.lang.ClassNotFoundException:
would it make sense to convert your fat table into a tall table by keeping
the source of the metric as part of the row key (may be as the suffix ? ).
For accessing all the metrics associated with a particular user, metric and
time, u will be resorting to prefix match on ur key.
Also all the keys
Thanks St.Ack and Kisalay.
In my case, I have primary users and people who interact with my primary
users. Lets call them secondary users.
Kisalay, you are right and I already have the primary user, metric name and
timestamp in my row key. did you mean having the secondary user also part
of the
Did you ever figure out how to insert an image into Hbase?
Vamshi Krishna vamshi2105@... writes:
Yep. I got it.
On 1/10/12 2:07 PM, Stack st...@duboce.net wrote:
On Tue, Jan 10, 2012 at 10:55 AM, Tom fivemile...@gmail.com wrote:
BTW, a little comment in the HBase book would have saved me quite a bit
of
time...
We are on it(Doug?)
St.Ack
Thanks Tom,
I am running on a Mac (Lion). My /etc/hosts is below. Would the last 2
lines confuse Standalone HBase?
P
##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting. Do not change this entry.
##
127.0.0.1localhost
Fixed it. I manually killed the process, removed the HBase files *AND*
the directory, and restarted.
I am guessing that the HBase directory in Standalone contains some sort
of hidden file or lock, and it got stuck.
P
On 1/10/12 2:43 PM, Doug Meil wrote:
Yep. I got it.
On 1/10/12
Hi Mikael,
shame on me I did that.
You're totally right that it is by chance if it the round second.
Now I use Thread.sleep ...benchmark have nearly doubled.
Thanks for the simple hint..
Christian hi
In short this is because you cannot assume that your loop will get exactly
there
Yes, Vinod, you got it right. I was suggesting to have the secondary users
also part of the row key as the suffix.
On Wed, Jan 11, 2012 at 1:02 AM, T Vinod Gupta tvi...@readypulse.comwrote:
Thanks St.Ack and Kisalay.
In my case, I have primary users and people who interact with my primary
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