Re: Seperating Application and Database Servers

n also mean that your hbase.zookeeper.quorum > is > carrying default value. Modify it to point to the real quorum. > > On Tue, Jul 5, 2011 at 1:27 AM, James Ram wrote: > > > Hi, > > > > We are running hadoop and hbase in a 9 machine cluster. We tried to put &g

Partial replication

Hi, Is it possible to replicate a particular dataset to another cluster instead of replicating the whole data? -- With Regards, Jr.

Seperating Application and Database Servers

Hi, We are running hadoop and hbase in a 9 machine cluster. We tried to put our application server on a machine outside the HBase cluster, but we are getting the following error. Is there any way that we can do this? 11/07/05 11:26:41 WARN zookeeper.ClientCnxn: Session 0x0 for server null, unexpe

Re: Difficulty using importtsv tool

table name ? and remove an extra space after hbase row > key. I think that must be th reason > ( I am not an expert , but have struggled alot with it. ) > Thanks, > Prashant > On Wed, Jun 15, 2011 at 11:59 AM, James Ram wrote: > > > Hi, > > > > I'm havi

Re: Difficulty using importtsv tool

Hi, Removing spaces worked!! Bill, thanks a lot for taking the time to look into this issue ! Regards, JR On Wed, Jun 15, 2011 at 12:21 PM, Bill Graham wrote: > Try removing the spaces in the column list, i.e. commas only. > > On Tue, Jun 14, 2011 at 11:29 PM, James Ram wrote:

Difficulty using importtsv tool

Hi, I'm having trouble with using the importtsv tool. I ran the following command: hadoop jar hadoop_sws/hbase-0.90.0/hbase-0.90.0.jar importtsv -Dimporttsv.columns=HBASE_ROW_KEY ,b_info:name, b_info:contactNo, b_info:dob, b_info:email, b_info:marital_status, b_info:p_address, b_info:photo, dem

usage of Write Ahead Logs

Hi, I would like to dispel some of my doubts about WriteAheadLogs (WAL). I believe they are stored under the .logs directory in hdfs. But it seems that the information contained in the WAL is insufficient for recovery after a regionserver goes down. I have given the sample contents of a WAL of a p

completebulkload tool

Hi, Can anyone please give an working example of completebulkload tool? How do we specify the column names and the row key? -- With Regards, Jr.

Re: HQuorum failures

ata that was on a region hosted by the failed regionserver and in that > case you need to make sure you application can deal the connection failure > and wait for the the regions to be reassigned to another regionserver. > > -chris > > On Jun 8, 2011, at 11:43 PM, James Ram wrote: &g

Adding HQuorum dynamically.

Is there anyway to add a new HQuorum to the cluster dynamically? -- With Regards, Jr.

HQuorum failures

Hi, We are running a 5 machine Hbase cluster. We have noticed that whenever an HQuorum fails in one machine, the entire application that is running on HBase crashes. Is there anything to do about this? -- With Regards, Jr.

Re: Reading a Hdfs file using HBase

en do the bulk import > that Bill suggested. > > -Joey > > On Jun 7, 2011, at 6:32, James Ram wrote: > > > Hi, > > > > Thanks for your help. Is it possible for HBase to read the values > directly > > from an XML file in HDFS > > > > On Tue, J

Re: Reading a Hdfs file using HBase

table: > > http://hbase.apache.org/bulk-loads.html > > > On Mon, Jun 6, 2011 at 9:38 PM, James Ram wrote: > > > Hi, > > > > I too have the same situation. The data in HDFS should be mapped to > columns > > in hbase. We will be putting data in bulk to HDFS an

Re: Reading a Hdfs file using HBase

Hi, I too have the same situation. The data in HDFS should be mapped to columns in hbase. We will be putting data in bulk to HDFS and we want HBase to read from HDFS and put the values in the respective columns. Is that possible. How can I map the data from HDFS to HBase columns. Is there any clas

Re: using HBase to read from xml files in HDFS

> > Sent from a remote device. Please excuse any typos... > > Mike Segel > > On Jun 3, 2011, at 6:50 AM, James Ram wrote: > > > Hi, > > > > I would like to know if it's possible to put xml files in hdfs and have > > hbase pull out the data in th

using HBase to read from xml files in HDFS

Hi, I would like to know if it's possible to put xml files in hdfs and have hbase pull out the data in those xml files. We are thinking of a situation where the xml files will have elements corresponding to the columns in hbase. So ideally hbase should be able to pull the data corresponding to th

implementing failover in hbase

Hi, We have HQuorum running on 3 machines in our 3 machine cluster. If one of the slaves goes down, the entire application crashes. So how do we implement failover so that even if one or more slaves fail, the application still keeps running. -- With Regards, Jr.

Cannot open channel to 1 at election address

Hi, We are using 1 Master and 4 Slave machines for Hadoop cluster. When I try to start the Hbase in Master, the slaves is showing the below exception. Can you help me. 2011-05-26 09:44:10,531 WARN org.apache.zookeeper.server.quorum.QuorumCnxManager: Cannot open channel to 1 at election address /1

Re: ClockOutOfSyncException with zookeeper

ssen, Michael Süß; Sitz der Gesellschaft: Berlin und München, > Deutschland; Registergericht: Berlin Charlottenburg, HRB 12300, München, HRB > 6684; WEEE-Reg.-Nr. DE 23691322 > > > -Original Message- > From: James Ram [mailto:hbas...@gmail.com] > Sent: Wednesday, May 25, 20

ClockOutOfSyncException with zookeeper

Hi, I am using 1 master and 4 slave machines cluster. I tried to add three HRegionserver including the master. But its throwing the following exception. The HRegionserver is running on the master but its not running on the slaves. I have also given the hbase-site.xml and regionservers also. Please

Zookeeper :Unable to load database on disk

Hi, We have 6 tables in HBase. All these tables have 4 to 5 rows. We have two slaves with each 2gb of free space. The problem is when we try to start the hbase, one of the slaves HQuorum doesnt start. It is showing the below Exception. 2011-05-23 09:49:35,375 FATAL org.apache.zookeeper.server.quo

Storing XML object in Hbase

Hi, I am a newbie to Hbase. Is it possible to store an XML object or XML File directly in hbase? -- With Regards, Jr.

Re: Connecting JPA with HBase

at: Thu Apr 14 11:23:13 GMT+05:30 2011 [INFO] Final Memory: 2M/6M [INFO] C:\cygwin\home\sao_user\hadoop_sws\hbase-0.90.0> On Thu, Apr 14, 2011 at 10:44 AM, James Ram wrote: > How do I persist data from my Spring

Connecting JPA with HBase

How do I persist data from my Spring/Java application to HBase? Currently I am trying to use a datanucleus plugin and connect JPA with HBase. Is this the best way or is there some other method I could use? -- With Regards, Jr.

creating multiple columns inside a column

Hi, I am new to HBase. Is it possible to create columns inside a column? I am trying to design an hbase table with several column families (~100). In each column family there will be several columns. Additionally, i*nside each column* I want to create a few columns. Is this possible? If so, is th

Re: Example Program

hi, Yes Exactly. That is what we want to know. On Fri, Mar 4, 2011 at 7:47 PM, Hari Sreekumar wrote: > HBase is a key-value datastore. What do you mean by using HBase to read a > csv file? Do you mean read data from a csv file and upload to HBase? > > On Fri, Mar 4, 2011 at 12:00 P

Example Program

Hi, I would like to use HBase to read from a csv file. is there any sample java code that i could use. Any tutorial also would be welcome. -- With Regards, Jr.

Re: HBase Prompt missing

are you using 0.20.6? > > > On Wed, Mar 2, 2011 at 9:10 PM, James Ram wrote: > >> Hi Lars, >> >> a) We are using Cygwin with Windows XP. >> b) We are using HBase 0.20.6 >> c) We set up HBase using tarball. >> d) It is not showing any error. It simply qu

Re: HBase Prompt missing

b) what version of HBase are you using? > c) how did you set up HBase (distro or tarball)? > d) what errors do you get when the shell aborts? > e) does the master UI work? > f) can you use HBase through the API? > > Thanks, > Lars > > On Tue, Mar 1, 2011 at 10:36 AM, James

HBase Prompt missing

Hi, I have few basic question related to HBase shell. Please help me out in these issues. 1. When I start the HBase Shell I am not getting the HBase prompt. 2. When I enter the command wrongly shell is closing abnormally. 3. When I use backspace key also the shell closes abnormally. 4. Is there a

HBase tutorial links.

Hi, I am new to HBase. Please suggest some links to learn HBase apart from hbase.apache.org. -- With Regards, Jr.