George,
Did you try to monitor the CPU in real-time to see any patterns? Does it do any
CPU spikes? Even so, the load averages should be matched against the number of
cores/hyper threads. How many cores do you see in top? (I personally prefer
htop to get a cluster overview in realtime). If
Can I add record level compression to a preexisting table? Will old
rows be compressed or only new rows?
For example, if I use the hbase shell and disable, alter {...COMPRESSION
= 'gz'}, enable Do I need to run a compaction as well?
Or do I need to create a new table?
-justin
It looks like the hbase jar isn't on your classpath, else it would
find HBaseConfiguration.
J-D
On Wed, Aug 18, 2010 at 3:08 AM, Wojciech Langiewicz
wlangiew...@gmail.com wrote:
Hello,
I tried to write custom HBase scanner in Java. It compiles successfully, but
I have problem with running it.
If it really is, can you access other HBase classes like HTable or HBaseAdmin?
J-D
On Wed, Aug 18, 2010 at 6:56 AM, Wojciech Langiewicz
wlangiew...@gmail.com wrote:
Of course this looks like HBase jar is not on the classpath, but it is - my
source file compiles with the same classpath
Justin,
You don't need to explicitly call a compaction, conversion will be
done over time. But if you do want to have them converted right away,
call a major_compaction.
J-D
On Wed, Aug 18, 2010 at 6:35 AM, Justin Cohen justin.co...@teamaol.com wrote:
Can I add record level compression to a
No, I can't. But I have successfully run this code inside eclipse, and I
don't know what is wrong. This is my classpath for this case:
/usr/lib/hbase/*:/usr/lib/hadoop/*:.
all jars are there since installation, what should I do?
W dniu 18.08.2010 16:05, Jean-Daniel Cryans pisze:
If it really
Hello,
We are trying to recover a corrupt META table over here. The region server
holding the META table went down, and since then our table scans cannot
complete because of this error which happens consistently on the same
region:
org.apache.hadoop.hbase.client.RetriesExhaustedException:
See
http://stackoverflow.com/questions/219585/setting-multiple-jars-in-java-classpath
J-D
On Wed, Aug 18, 2010 at 7:50 AM, Wojciech Langiewicz
wlangiew...@gmail.com wrote:
No, I can't. But I have successfully run this code inside eclipse, and I
don't know what is wrong. This is my classpath
Luke Forehand luke.foreh...@... writes:
Hello,
We are trying to recover a corrupt META table over here. The region server
holding the META table went down, and since then our table scans cannot
complete because of this error which happens consistently on the same
region:
I believe
We've fixed issues with the META being out of sync with the region severs
and I've put what we did in this post :-
http://www.mail-archive.com/user@hbase.apache.org/msg00187.html
Hope that helps!
On 18 August 2010 17:13, Luke Forehand
luke.foreh...@networkedinsights.comwrote:
Luke Forehand
Thanks for that bit of feedback.
Right now stumbleupon operates a cluster that handles 20,000 requests a
second 24/7 for about a year now. Even though we have hbase developers I
don't think there is any special sauce and anyone could replicate the
successes we've had. Mozilla is one candidate.
On Wed, Aug 18, 2010 at 2:17 PM, Ryan Rawson ryano...@gmail.com wrote:
Thanks for that bit of feedback.
Right now stumbleupon operates a cluster that handles 20,000 requests a
second 24/7 for about a year now. Even though we have hbase developers I
don't think there is any special sauce and
Hi
I am new to Hbase and wondering if anybody share his thoughts about the star
schema implementation in Hbase. I have to process terabytes of data daily
and then generate reports and analytical views from them. So I am planning
to build data warehouse solution using HBase.
If anybody has done
Hello,
I was wondering if there are any plans for a stream interface to Cell data. I
saw this:
or they are using large client write buffers so big
payloads are being
passed to the server in each RPC request. Our
RPC is not streaming.
So I'm guessing there's not one now (and I
14 matches
Mail list logo
