Recent questions tagged hadoop

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What are the pros and cons of parquet format compared to other formats?

Dec 21, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 352 views
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What is the difference between partitioning and bucketing a table in Hive ?

Dec 20, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 276 views
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ssh: connect to host localhost port 22: Connection refused in Hadoop.

Dec 18, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 1,468 views
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How to show all partitions of a table in Hive?

Dec 18, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 285 views
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How to delete and update a record in Hive?

Dec 8, 2020 in Big Data Hadoop by Rajiv
 • 8,880 points • 191 views
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Where does hive stores its table?

Dec 7, 2020 in Big Data Hadoop by Rajiv
 • 8,880 points • 95 views
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How do I split a string on a delimiter in Bash?

Dec 7, 2020 in Big Data Hadoop by Roshni
 • 10,440 points • 95 views
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How does Hadoop process records split across block boundaries?

Dec 7, 2020 in Big Data Hadoop by Roshni
 • 10,440 points • 70 views
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Name node is in safe mode. Not able to leave

Dec 7, 2020 in Big Data Hadoop by Roshni
 • 10,440 points • 183 views
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How do I output the results of a HiveQL query to CSV?

Nov 20, 2020 in Big Data Hadoop by anonymous
 • 8,880 points • 193 views
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How to know Hive and Hadoop versions from command prompt?

Nov 20, 2020 in Big Data Hadoop by Rajiv
 • 8,880 points • 209 views
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How to set variables in HIVE scripts

Nov 20, 2020 in Big Data Hadoop by anonymous
 • 10,440 points • 327 views
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When to use Hadoop, HBase, Hive and Pig?

Nov 20, 2020 in Big Data Hadoop by anonymous
 • 10,440 points • 151 views
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Difference between Pig and Hive? Why have both? [closed]

Nov 20, 2020 in Big Data Hadoop by Roshni
 • 10,440 points • 79 views
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How to start working with scala?

Nov 16, 2020 in Big Data Hadoop by anonymous
 • 10,440 points • 56 views
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Zookeeper server going down frequently.

Nov 9, 2020 in Big Data Hadoop by B
 • 210 points • 147 views
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HDP Upgrade Issue in 2.6.5.

Nov 7, 2020 in Big Data Hadoop by B
 • 210 points • 89 views
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Validating HA for ranger KMS

Nov 6, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 100 views
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Not able to create kms key using ambari.

Nov 4, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 137 views
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Ranger Kms having multiple instance enabled.

Oct 22, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 148 views
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How to copy file from Local file system to HDFS?

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 276 views
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Drop an index from a Hive table.

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 197 views
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How to create an index on Hive table?

Oct 19, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 145 views
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Drop a table in Hive.

Oct 18, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 75 views
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How to add a column in Hive table?

Oct 18, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 259 views
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How to rename the Hive table?

Oct 18, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 100 views
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Ranger kms is not coming up

Oct 18, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 181 views
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How to write a HDF file from a DataFrame?

Oct 17, 2020 in Python by akhtar
 • 38,170 points • 70 views
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How to write Reducer code for Hadoop?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 80 views
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How to write mapper code for Hadoop in Python?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 84 views
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1 answer

How to find the status of MapReduce Job?

Oct 16, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 66 views
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1 answer

Create hive table with location.

Oct 15, 2020 in Big Data Hadoop by MD
 • 95,160 points • 54 views
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How to create hive table without location?

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 92 views
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1 answer

How to update the existing record in HDFS?

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 271 views
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1 answer

IOException: All datanodes are bad.

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 118 views
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1 answer

ERROR: Cannot set priority of datanode process

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 1,704 views
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Checksum verification in Hadoop.

Oct 15, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 210 views
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How to start Hadoop daemons?

Oct 15, 2020 in Big Data Hadoop by MD
 • 95,160 points • 75 views
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1 answer

Enable HA for ranger KMS.

Oct 14, 2020 in Big Data Hadoop by anonymous
 • 450 points • 78 views
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HA ranger KMS ,

Oct 14, 2020 in Big Data Hadoop by Shilpa S
 • 450 points • 91 views
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How to store datasets from Pig to HDFS?

Oct 14, 2020 in Big Data Hadoop by akhtar
 • 38,170 points • 126 views
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