@rinu shrivastav No, The number of map tasks for a given job is driven by the number of input splits. For each input split a map task is spawned. So, we cannot directly change the number of mappers using a config other than changing the number of input splits. ... View more

What is the python version you are using? if its python 3.x Use: print(currentdate) ... View more

Looks like some issue with text formatting. Try this: import datetime currentdate = datetime.datetime.now().strftime("%Y-%m-%d") print currentdate >>> 2018-08-13 ... View more

Assign to @Jonathan Sneep, You can also create a new temp table with JSON file format and use "insert into json table form existing table;" Post creating the new table, the files can be read form hdfs in json format. ... View more

Looks like there are 3 questions with same description... ... View more

@Carlton Patterson You can use the python's datetime package to obtain the current date. import datetime currentdate = datetime.datetime.now().strftime("%Y-%m-%d") print currentdate >>> 2018-08-13 And then use the currentdate in output file name. counts.coalesce(1).write.csv("/home/packt/Downloads/myresults3-" + currentdate + ".csv") Hope this helps. P.S. If you want date and time use: datetime.datetime.now().strftime("%Y-%m-%d %H:%M") ... View more

@Rahul P The doc is now corrected: https://docs.hortonworks.com/HDPDocuments/HDP3/HDP-3.0.0/hive-overview/content/hive-apache-hive-3-architecturural-overview.html *** If you found this answer addressed your question, please take a moment to login and click the "accept" link on the answer. ... View more

@Gaurang Shah I don't think you will be able to connect form the presto outside of sandbox. One easy solution i can think of is to install presto service within sandbox docker. ... View more

This disables 'hadoop' command completely. Well i missed this in description. Restricting only chmod is not possible without implementing authentication/authorization AFAIK. ... View more