Am 28.01.2015 um 14:39 schrieb Frank Lanitz:
Hi,
I've got a simple 3-node-setup where I wanted to test the grep function
based on some examples. So
$ hadoop fs -put /home/hadoop/hadoop/etc/hadoop hadoop-config
$ hadoop jar
hadoop/share/hadoop/mapreduce/hadoop-mapreduce-examples-*.jar
Hello Dongzhe Ma,
Yes HDFS employs Single writer, multiple reader model. This means :
WRITE
• HDFS client maintains a lease on files it opened for write (for entire
file not for block)
• Only one client can hold a lease on a single file
• For each block of data, setup
Hi Experts,
I could run distcp against ftp server installed on Linux, but could NOT run
distcp against ftp server installed on Windows. Below are the steps.
Is this a DistCp bug? Any comments?
[Scenario 1]
I installed a BI cluster using trunk build on HadoopNode1, and then could
copy file from
Hi Vikas,
To a small scale user to queue mapping was supported as part of YARN-2411,
Please refer the following configurations :
property
nameyarn.scheduler.capacity.queue-mappings/name
value/value
description
A list of mappings that will be used to assign jobs to queues
Make virtualization an option. Federation will NOT solve your problems.
*...*
*“Life should not be a journey to the grave with the intention of arriving
safely in apretty and well preserved body, but rather to skid in broadside
in a cloud of smoke,thoroughly used up, totally worn out,
I see no possibility how federation may help to have different Clusters on
_same_ machines. On top, federation isn’t production ready, since the NN can
have massively issues with GC on high loaded systems, which will be the case
here.
To have multiple, maybe single node, clusters the best way
start several vms and install hadoop on each vm
keywords: kvm, QEMU
On Mon, Jan 26, 2015 at 1:18 AM, Harun Reşit Zafer
harun.za...@tubitak.gov.tr wrote:
Hi everyone,
We have set up and been playing with Hadoop 1.2.x and its friends (Hbase,
pig, hive etc.) on 7 physical servers. We want to
We know that HDFS employs a single-writer, multiple-reader model, which
means that there could be only one process writing to a file at the same
time, but multiple readers can also work in parallel and new readers can
even observe the new content. The reason for this design is to simplify
Hello folks,
Could any body please let us know how can i assign a particular queue to my
user. My scenario is
Scheduler - Capacity scheduler
Having 3 queue:- A, B and C
Users - user1, user2 and user3
Now, what i am looking from above scenario.
- if user1 submit any job that should
