After formatting the namenode, it will shutdown, you will then need to
start it again. It looks like the init script with the init command is just
formatting the namenode. Do you get an error when starting the namenode ?
Also may I ask why you've installed 2.0.5-alpha ? The latest stable is
Hello,
I have hadoop cluster with 9 nodes. All belongs to /default racks. But I
want the setup something similar to this.
(All are in same subnets)
Rack 0: DataNode1,Datanode2,DataNode3 and top of rack switch1.
Rack 1: DataNode4,Datanode5,DataNode6 and top of rack switch2.
Rack 3:
I created a Hive table with *partition* and inserted data into Partioned
Hive table.
Refered site
https://blog.safaribooksonline.com/2012/12/03/tip-partitioning-data-in-hive/
1.
*Initially created one Non -partioned table and then using select query
and loaded data into partioned
Hi Navaz,
you have to configure the following two properties in namenode(after that you
need to restart the namenode).
property
nametopology.node.switch.mapping.impl/name
valueorg.apache.hadoop.net.ScriptBasedMapping/value
description The default implementation of the DNSToSwitchMapping.
The effective technique to fix block distribution after changes in rack
awareness is to increase replication factor and decrease it back
Regards,
Serge
On Nov 16, 2014, at 21:10, Brahma Reddy Battula
brahmareddy.batt...@huawei.com wrote:
Hi Navaz,
you have to configure the following
In non partitioned table I am getting the correct values.
Is my update query wrong?
INSERT OVERWRITE TABLE Unm_Parti_Trail PARTITION (Department = 'A') SELECT
employeeid,firstname,designation, CASE WHEN employeeid=19 THEN '5 ELSE
salary END AS salary FROM Unm_Parti_Trail;
What I tried to
