Data doesn't write in HDFS

Hi, I try to write the data in hdfs using flume on windows machine. Here I configure flume and hadoop on same machine and write data into hdfs its works perfectly. But configure hadoop and flume on different machines (both are windows machines). I try to write data in hdfs it shows the following

Re: trying to understand HashPartitioner

It's not the number of the the reduce task, but the ID of the reduce task. For definite , it will only be dealed on one reduce task. In MRv2, each reduce task has an ID, like 0、1、2、3、4. The result is the reduce ID and the will be processed on that reduce task 2015-03-19 7:27 GMT+08:00 Jianfeng (

Re: Linux Container Executor (LCE) vs Default Container Executor(DCE)

Thank you Harsh !! Are there any other ways to find the owner of the containers. I suppose one way is doing a "*ps -ef|grep container*" and view the process details. Regards, Rajesh On Thu, Mar 26, 2015 at 11:31 AM, Harsh J wrote: > > In both cases the container is executed under the user sub

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Re: Linux Container Executor (LCE) vs Default Container Executor(DCE)

> In both cases the container is executed under the user submitting it. This is incorrect. The DCE executes as the NodeManager process user ('yarn' typically), and the LCE in non-secure mode by default runs only as 'nobody' (or arbitrary static user) unless asked to run as the actual user by switc

Linux Container Executor (LCE) vs Default Container Executor(DCE)

Hello, I was wondering what are the main differences between LCE and DCE under ' *simple*' Hadoop security. >From my readings LCE gives: - granularity to control execution like ban users, min uid - use cgroups to control resources While DCE uses ulimits. In both cases the container is executed

Re: Total memory available to NameNode

Ah, yes. Toms book is a good start, and Eric Sammers book Hadoop Operations too :) BR, AL > On 26 Mar 2015, at 11:50, Mich Talebzadeh wrote: > > Many thanks AL. I believe you meant “Hadoop the definitive guide” J > > Mich Talebzadeh > > http://talebzadehmich.wordpress.com

RE: Total memory available to NameNode

Many thanks AL. I believe you meant “Hadoop the definitive guide” J Mich Talebzadeh http://talebzadehmich.wordpress.com Publications due shortly: Creating in-memory Data Grid for Trading Systems with Oracle TimesTen and Coherence Cache NOTE: The information in this email is propri

Re: Total memory available to NameNode

Hi Mich, the book Hadoop Operations may a good start: https://books.google.de/books?id=drbI_aro20oC&pg=PA308&lpg=PA308&dq=hadoop+memory+namenode&source=bl&ots=t_yltgk_i7&sig=_6LXkcSjfuwwqfz_kDGDi9ytgqU&hl=en&sa=X&ei=Nt8TVfn9AcjLPZyXgKAC&ved=0CFYQ6AEwBg#v=onepage&q=hadoop%20memory%20namenode&f=fals

Total memory available to NameNode

Is there any parameter that sets the total memory that NameNode can use? Thanks Mich Talebzadeh http://talebzadehmich.wordpress.com Publications due shortly: Creating in-memory Data Grid for Trading Systems with Oracle TimesTen and Coherence Cache NOTE: The information in this