I would convert each id to long and then use Bytes.toBytes to convert this
long to a byte array. If it is an int then even better.
Now, write all 3 longs one after another to one array which will be your
rowkey.
This gives you:
* fixed size
* small row key - 3*8 bytes if you use long and 3*4 for in
I'll add that this did fix my issue. The dn.50010 proc file is now in
place and I have not see any other exceptions.
Thanks guys!
On Wed, Mar 6, 2013 at 10:45 PM, Anoop Sam John wrote:
> Hi Kevin
> Thanks for the information. In HBase book, we have added a
> note on how to use
Hi Kevin
Thanks for the information. In HBase book, we have added a note
on how to use short circuit reads.. Can we update it accordingly? Which version
of HDFS need this attribute to be present in DN side also? It would be great
if you can file a JIRA and give a change in the de
One interesting post to read is from Lars H:
http://hadoop-hbase.blogspot.com/2012/11/hbase-mvcc-and-built-in-atomic.html
It describes how the atomic counter operations work.
Jeff
On Wed, Mar 6, 2013 at 12:25 PM, S Ahmed wrote:
> Where can I read up on how counters work with hbase?
>
> Does it
Great, thanks for the help Kevin. He's correct that we only have
dfs.client.read.shortcircuit set in our hbase-site.xml, and we don't
have dfs.domain.socket.path
set anywhere. I'll get that added.
Thanks again!
On Wed, Mar 6, 2013 at 3:43 PM, Kevin O'dell wrote:
> Hi Byran,
>
> One of enginee
Hi Byran,
One of engineers wanted me to pass this recommendation along:
The issue here is mostly likely a missing configuration.
We need to have this configuration on both the DataNode and RegionServer:
dfs.domain.socket.path
/var/run/hadoop-hdfs/dn._PORT
dfs.client.read.shortcircuit
Yes, decommissioning the regionserver does not mean decommissioning the
datanode.
Here, if I understand well your first step, you migrated the regions to
other regions servers. Physically, the data was still on the previous
machine, with the hdfs datanode. It's not used anymore for writes if all
ot
Hi,
I'm trying to decommission a RS, i.e. migrate all regions to different
nodes in order to shutdown that specific node. First I've moved all
regions to different nodes and made sure that there are no regions
anymore on this node:
...
ip-11-11-111-111.ec2.internal:60020 1362060123906
