You're likely to get a better response if you post your error messages and
example code that reproduces the problem. :)
Best,
Dave
On Tue, Jun 19, 2012 at 12:27 AM, Ben Cuthbert bencuthb...@ymail.comwrote:
All
We have our application server running in Java 7 and hbase started and
running on
Here's a good starting point:
http://hbase.apache.org/book.html#store.memstore , I think you
misunderstand what a memstore is.
Good luck!
-Dave
On Wed, Jun 13, 2012 at 10:50 AM, ashdamle a...@medgle.com wrote:
Hello. This is my first post here. I've setup hbase with 2 column families
2GB
Have you verified that your nodes are not swapping? This has caused serious
issues for many people, including me.
Swapping can occur even if you have lots of available memory, for
complicated reasons.
Best,
Dave
On Thu, May 24, 2012 at 4:39 PM, Stack st...@duboce.net wrote:
On Thu, May 24,
1. HBase guarantees data locality of store files and Regionserver only if
it stays up for long. If there are too many region movements or the server
has been recycled recently, there is a high probability that store file
blocks are not local to the region server. But the getSplits command
On Wed, May 23, 2012 at 6:15 AM, Takahiko Kawasaki
takahiko.kawas...@jibemobile.jp wrote:
Hello,
I'm a newbie and wondering whether or not there is any restriction during
HBase minor/major compactions. I read the online document but could not
find any explicit mention about restrictions.
Many people will probably try to use coprocessors as a way of implementing
app logic on top of HBase without the headaches of writing a daemon.
Sometimes client-side approaches are inadvisable; for example, there may be
several client languages/runtimes and the app logic should not be
Re: your question #1, you won't be able to pass information from mappers to
reducers by using static variables. Since map tasks run in different JVM
instances than reduce tasks, the value of the static variable will never be
sent from the mapper JVM to the reducer JVM.
It might work in standalone
Hi Narenda,
There are some shared static data structures inside the HBase client that
are keyed on Configuration objects. Do you reuse the same Configuration
object everytime you instantiate an HTable? By reusing the same
Configuration objects you may cause ZooKeeper connections to be reused.
to sort your input in to HBase and if
that's really a good thing?
Oops!... :-)
On May 10, 2012, at 12:31 PM, Dave Revell wrote:
This you don't need a reducer conversation is distracting from the real
problem and is false.
Many mapreduce algorithms require a reduce phase (e.g. sorting
I think this is a popular topic that might deserve a section in The Book.
By this topic I mean storing big binary chunks.
-Dave
On Tue, Apr 17, 2012 at 11:07 AM, kim young ill khi...@googlemail.comwrote:
i plan to move some data from relational-db to hbase, most of them are
binary with some
Bam! http://ofps.oreilly.com/titles/9781449396107/performance.html ,
search for merging regions
Zamo! https://issues.apache.org/jira/browse/HBASE-1621
Cheers,
Dave
On Fri, Sep 9, 2011 at 9:54 AM, Geoff Hendrey ghend...@decarta.com wrote:
Hi -
I think we're in a situation where we have too
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