Re: ways to improve performance of Scan with SingleColumnValueFilter..Please help!!!

Thanks for the suggestions. I will fix my cluster set up. On Fri, Jun 29, 2012 at 8:01 PM, Alex Baranau wrote: > 1. Theoretically, scanning on each regionserver with cps might help you, I > think. But this is not a good way to go with anyways... > > 2. Table is created on the cluster, not on indi

Re: HBASE -- Regionserver and QuorumPeer ?

I'm sorry I'm losing it. Running RS on a machine where DN isn't running? So then the RS can't store its regions locally. Not sure if that would ever be a good idea or recommended. Thought the initial question is running ZK on the same node as a RS which isn't a good idea and a recipe for fa

HBASE -- HMaster Aborts after 28 minutes.

I assume a timer may need to be increased based on these messages. Any thoughts as to which one or is it something else? 2012-07-01 18:17:16,461 INFO org.apache.hadoop.hbase.master.LoadBalancer: Skipping load balancing. servers=3 regions=2 average=0.667 mostloaded=1 leastloaded=0 2012-07-01 1

Re: HBase Security API

On Sun, Jul 1, 2012 at 5:29 PM, Tony Dean wrote: > It appears that the Kerberos authentication integration into HBase is via > JAAS Krb5LoginModule. That is, This is a question for gene...@hadoop.apache.org I think. HBase piggybacks on Hadoop's Kerberos integration. Hadoop uses its own custom L

Re: HBASE -- Regionserver and QuorumPeer ?

On Sun, Jul 1, 2012 at 2:05 PM, Jay Wilson wrote: > Can a regionserver and quorumpeer reside on the same node? It can, but you want to consider how disk is allocated in the cluster. A typical and recommended configuration is HBase RegionServer and HDFS DataNode colocated on the nodes. The DataNo

HBase Security API

Posting this again in plaintext to see if it registers successfully. Hi, It appears that the Kerberos authentication integration into HBase is via JAAS Krb5LoginModule. That is, I can setup up the "Client" application context and configure where/how the client Kerberos principle is authenticat

Re: HBASE -- Regionserver and QuorumPeer ?

Yes. On Jul 1, 2012, at 2:05 PM, Jay Wilson wrote: > Can a regionserver and quorumpeer reside on the same node? > > >

Re: HBASE -- Regionserver and QuorumPeer ?

Not necessarily...Both are totally different processes..In a Hadoop cluster typically HBase Master and a ZooKeeper quorum peer run on a machine and regionservers are spread across the cluster. But this totally depends on you. Regards, Mohammad Tariq On Mon, Jul 2, 2012 at 2:35 AM, Jay Wilson

HBASE -- Regionserver and QuorumPeer ?

Can a regionserver and quorumpeer reside on the same node?

Re: Finding the correct region server

Hello, You can find a great explanation of HBase file locality in HDFS here http://www.larsgeorge.com/2010/05/hbase-file-locality-in-hdfs.html . The short answer is that HBase file locality improves with time since files are recreated during compactions as close as possible to the RS running node

hbase security API

Hi, It appears that the Kerberos authentication integration into HBase is via JAAS Krb5LoginModule. That is, I can setup up the "Client" application context and configure where/how the client Kerberos principle is authenticated (TGT). Correct? If I have a multi-tenant application that perfor