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05-17-2018
07:20 AM
1 Kudo
It is a feature of Hadoop that it can tackle node failure. But how Namenode handles the Datanode failures?
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05-17-2018
07:18 AM
It is a feature of Hadoop that it can tackle node failure. But how Namenode handles the Datanode failures?
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05-17-2018
07:13 AM
Replication factor property is globally set in hdfs-site.xml, the default value is 3. The replication factor for the data stored in the HDFS can be modified by using the below command, Hadoop fs -setrep -R 5 /
Here replication factor is changed to 5 using –setrep command.
We can define the replication factor for a file or directory or an entire system by specifying the file or directory or an entire system in the above command
File:
hadoop fs –setrep –w 3 /my/file
Directory:
hadoop fs –setrep –w 3 -R /my/dir
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05-16-2018
08:52 AM
I have stored my data in HDFS, now how can I change the replication factor?
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05-14-2018
06:36 AM
I am having a CSV file with two columns col1- Timestamp data(yyyy-mm-dd hh:mm:ss.ms (8 months data)) col2 : Heat data (continuous variable) As there are almost 50k records, I want to partition the column 1 (timestamp col) into months and then apply box plot on the heat data with respect to timestamp. It have tried the same in R but it took very long time. I think I shoud use seaborn.boxplot . What you suggest?
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05-10-2018
04:46 AM
I have many subdomains, one of them is resources.website.com and resources from it need to be available on all other .website.com subdomains. The browser with foo.website.com is running into CORS problem.
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