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06-13-2017
06:38 PM
@mbigelow it come be a dumb question please bear with me . is it mandatory to use fully qualified domain name ? because we dont not mention them in any of the hadoop configuration files. when it comes to networking not really my area. could you clarify
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06-13-2017
07:11 AM
if you are plaining for Single node cluster , then just the hostname would be of your choice . /etc/hosts
192.168.200.201 Hello /etc/sysconfig/network
Hello You have to configure Yum repository , MR2 yarn setup - the below is good link from Cloudera for Single node cluster setup . https://www.cloudera.com/documentation/enterprise/5-4-x/topics/cdh_qs_yarn_pseudo.html
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06-13-2017
06:57 AM
1 Kudo
I assume you are using vm . so edit the file accordingly , to perform the SSH configuration follow the link On both the nodes . /etc/hosts
192.168.200.201 master
192.168.200.202 slave On the master node /etc/sysconfig/network
master on the slave node /etc/sysconfig/network
slave Below is the best link to walk through the rest of the configuration ,mate https://www.tutorialspoint.com/hadoop/hadoop_multi_node_cluster.htm
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06-13-2017
06:42 AM
Gotcha . its just matter of two files that you need to tweak. are you plaining to perform single node or multi node cluster ?
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06-13-2017
02:12 AM
@mbigelow Sorry for the late response , was on Vacation :)) bleow is my answer to the questionaire is size the amount after the merge? Yes it . What was the average size before? between 50kb to 100 kb . How long did it take to run? 10-15 minutes
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06-08-2017
07:00 PM
2 Kudos
Because you defined a new the table from outside of impala , you need to refresh hive metadata in impala. fire this command in the impala-shell or Hue INVALIDATE METADATA You should be able to query the table
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06-07-2017
05:02 AM
@mbigelow Parquet - Merge No. of files Ulimit Size (GB)
5000 15000 2.1
4140 10000 1.4 System Configuration model name : Intel(R) Xeon(R) CPU E5-2620 v4 @ 2.10GHz
cpu MHz : 1257.457
cache size : 20480 KB
cpu cores : 8
processor : 15
cpu MHz : 1212.914
cache size : 20480 KB
siblings : 16
core id : 7
cpu cores : 8 The above error got fixed as per your suggestion by increasing the Ulimit . But do you think the above benchmark is good or should we decrease the number of files in the folder . Please let me know your thoughts Cant thank you enough for the help .
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06-06-2017
05:14 PM
@mbigelow Thanks for the quick trurn around . Will try and let you know the results.
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