Home | About | Sematext search-lucene.com search-hadoop.com
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB
 Search Hadoop and all its subprojects:

Switch to Threaded View
HDFS >> mail # user >> Hi


Hi,

HDFS isn't a "replacement" for Databases, it is a File-System (Hadoop
Distributed File System - HDFS).

I suggest reading up on what Hadoop is first. Both the book "Hadoop: The
Definitive Guide" by Tom White (O'Reilly) and the mildly dated,
developer-focussed article at
http://developer.yahoo.com/hadoop/tutorial/are great resources at
understanding and getting started with Apache
Hadoop, and understanding how it can help in your work.

On Sat, Feb 18, 2012 at 11:35 AM, Ajit Deshpande
<[EMAIL PROTECTED]>wrote:

>  Hi Steve,****
>
> I m in process of learning HADOOP.****
>
> I have installed HDFS on SUSE-10.****
>
> But I m confused what to do next. I searched over Google but not able to
> find much about it .****
>
> So can anyone suggest what I need to do if I have to implement HDFS for
> different databases?****
>
> ** **
>
> ** **
>
> *
> Ajit Deshpande
> United Software Associates Pvt. Ltd.
> Pune, India
> www.usain.com*****
>
> ** **
>
> *From:* Stuti Awasthi [mailto:[EMAIL PROTECTED]]
> *Sent:* Friday, February 17, 2012 10:22 AM
> *To:* [EMAIL PROTECTED]; Steve Lewis
> *Subject:* RE: facing issues in HDFSProxy****
>
> ** **
>
> After I commented line “
> sslConf.set("proxy.http.test.listener.addr",conf.get("proxy.http.test.listener.addr"));”
> in HDFSProxy.java getting below error :****
>
> ** **
>
> 2012-02-16 14:59:25,156 WARN org.mortbay.log:
> java.lang.NullPointerException****
>
> 2012-02-16 14:59:25,156 INFO org.apache.hadoop.http.HttpServer:
> HttpServer.start() threw a non Bind IOException****
>
> 2012-02-16 14:59:25,162 ERROR org.apache.hadoop.hdfsproxy.HdfsProxy:
> java.io.IOException: !JsseListener: java.lang.NullPointerException****
>
>        at
> org.mortbay.jetty.security.SslSocketConnector.newServerSocket(SslSocketConnector.java:516)
> ****
>
>        at
> org.mortbay.jetty.bio.SocketConnector.open(SocketConnector.java:73)****
>
>        at org.apache.hadoop.http.HttpServer.start(HttpServer.java:581)****
>
>        at org.apache.hadoop.hdfsproxy.HdfsProxy.start(HdfsProxy.java:84)**
> **
>
>        at
> org.apache.hadoop.hdfsproxy.HdfsProxy.createHdfsProxy(HdfsProxy.java:135)*
> ***
>
>        at org.apache.hadoop.hdfsproxy.HdfsProxy.main(HdfsProxy.java:141)**
> **
>
> ** **
>
> Any  ideas how to fix it ?****
>
> ** **
>
> ** **
>
> *From:* Denny Ye [mailto:[EMAIL PROTECTED]]
> *Sent:* Friday, February 17, 2012 7:40 AM
> *To:* [EMAIL PROTECTED]; Steve Lewis
> *Subject:* Re: facing issues in HDFSProxy****
>
> ** **
>
> Sure, it's the temporary code, you can delete that line.****
>
> ** **
>
> -Regards****
>
> Denny Ye****
>
> 2012/2/16 Stuti Awasthi <[EMAIL PROTECTED]>****
>
> Thanks Denny,****
>
>  ****
>
> Commenting below line in HDFSProxy.java class and rebuilding it . Will
> this help ?****
>
>
> sslConf.set("proxy.http.test.listener.addr",conf.get("proxy.http.test.listener.addr"));
> ****
>
>  ****
>
> Thanks****
>
>  ****
>
> *From:* Denny Ye [mailto:[EMAIL PROTECTED]]
> *Sent:* Thursday, February 16, 2012 2:27 PM
> *To:* [EMAIL PROTECTED]
> *Subject:* Re: facing issues in HDFSProxy****
>
>  ****
>
> In my local Hadoop version, I saw the temporary code with inexistent
> property name.****
>
> Hashtable does not accept 'null' as the normal value. ****
>
> It's the mistake of unit testing****
>
>  ****
>
> -Regards****
>
> Denny Ye****
>
> 2012/2/16 Stuti Awasthi <[EMAIL PROTECTED]>****
>
> Hi all,****
>
> Any pointers for this ?****
>
>  ****
>
> *From:* Stuti Awasthi
> *Sent:* Wednesday, February 15, 2012 5:53 PM
> *To:* [EMAIL PROTECTED]
> *Subject:* facing issues in HDFSProxy****
>
>  ****
>
> Hi,****
>
> I am using Hadoop 1.0.0 and want to try HDFSProxy . Following:****
>
>
> http://hadoop.apache.org/hdfs/docs/r0.21.0/hdfsproxy.html#Jetty-based+Installation+and+Configuration
> ****
>
>  ****
>
> When I run start-hdfsproxy.sh script I get following error in logs :****
>
> ************************************************************/****

Harsh J
Customer Ops. Engineer
Cloudera | http://tiny.cloudera.com/about
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB