Trending questions in Big Data Hadoop

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Factorial function in Impala

There are two ways to do this: select ...READ MORE

Jun 7 in Big Data Hadoop by Reshma
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What is the PostgreSQL connection string for Sqoop?

The format of the connection string is: jdbc:postgresql://<HOST>:<PORT>/<DATABASE_NAME> You ...READ MORE

Jun 6 in Big Data Hadoop by Kamal
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Hive Execution Engine

The default execution engine for Hive is mr. To ...READ MORE

Jun 4 in Big Data Hadoop by Varun
128 views
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Impala get current time

You can get the current time using ...READ MORE

Jun 6 in Big Data Hadoop by Raman
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Is there a possibility to run Apache Spark without Hadoop?

Spark and Hadoop both are the open-source ...READ MORE

Jun 6 in Big Data Hadoop by ravikiran
• 4,560 points
37 views
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Impala: Add months to current time

You can add the months using the add_months method ...READ MORE

Jun 6 in Big Data Hadoop by John
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How to subtract month from Impala time stamp?

You don't need another method, you can ...READ MORE

Jun 6 in Big Data Hadoop by Tina
21 views
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JDBC connection string for Netezza

Hi. The syntax of the connection string ...READ MORE

Jun 6 in Big Data Hadoop by jai
22 views
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1 answer

Power of a number in Impala

Suppose you have fetched two values X ...READ MORE

Jun 6 in Big Data Hadoop by Reshma
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Using Microsoft SQL Server for Sqoop

To use Microsoft SQL Server for Sqoop, ...READ MORE

Jun 6 in Big Data Hadoop by Ramay
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1 answer
0 votes
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Oozie Uber JARs support configuration

You can configure Oozie to handle Uber ...READ MORE

Jun 6 in Big Data Hadoop by Karan
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How to configure Oozie to use Oracle?

You have to mention the following properties ...READ MORE

Jun 6 in Big Data Hadoop by Rishi
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Run Oozie against a federated Cluster

You can run Oozie against the federated ...READ MORE

Jun 6 in Big Data Hadoop by Nanda
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JDBC to HiveServer2 connection in HTTPS mode with SSL enabled

To connect to HiveServer2 in HTTPS mode ...READ MORE

Jun 4 in Big Data Hadoop by Firoz
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1 answer

Can anyone help me in installing and configuring a Multi-Node Hadoop Cluster?

To install Hadoop setup on the 4-node ...READ MORE

Jun 4 in Big Data Hadoop by ravikiran
• 4,560 points
78 views
0 votes
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Using hedged reads in HBase

To enable hedged reads, open the hbase-site.xml file and ...READ MORE

Jun 4 in Big Data Hadoop by Gani
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Configure Oozie to use PostgreSQL

To configure Oozie to use PostgreSQL, add ...READ MORE

Jun 4 in Big Data Hadoop by Rajan
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Hive queries from mapreduce gives Null Pointer Exception.

I think you have upgraded CDH. This ...READ MORE

Jun 4 in Big Data Hadoop by Rihan
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1 answer

Can someone explain me how write data into HDFS using Java?

I understand your issue, I would drop ...READ MORE

Jun 4 in Big Data Hadoop by ravikiran
• 4,560 points
51 views
0 votes
1 answer

Configure Oozie to use MySQL

To configure Oozie to use MySQL, open ...READ MORE

Jun 4 in Big Data Hadoop by Karan
37 views
0 votes
1 answer

Configure Oozie to use MariaDB

Add the following properties in the oozie-site.xml file, it ...READ MORE

Jun 4 in Big Data Hadoop by Esha
30 views
0 votes
1 answer

Remove attribute from a column in HBase

To remove the attribute from a column, ...READ MORE

Jun 4 in Big Data Hadoop by Firoz
28 views
0 votes
1 answer

Configuring JDBC Clients for LDAP Authentication with HiveServer2

JDBC client requires a connection URL as ...READ MORE

Jun 3 in Big Data Hadoop by Raman
70 views
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How to change WebHCat default port?

The default port configuration is stored in ...READ MORE

Jun 4 in Big Data Hadoop by Hari
26 views
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1 answer

Access Hive Server with JDBC clients

To access Hive Server using JDBC client, ...READ MORE

Jun 4 in Big Data Hadoop by Raghu
24 views
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1 answer

HiveServer2 connection URL for remote mode

For a remote server, the URL format ...READ MORE

Jun 4 in Big Data Hadoop by Mahesh
21 views
0 votes
1 answer

How to connect to HiveServer2 in HTTPS mode?

The connection URL to connect to HiveServer2 ...READ MORE

Jun 4 in Big Data Hadoop by Rachit
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1 answer

I am receiving a warning which says: Failed to locate the winutils binary in the Hadoop binary path

I see that you are facing multiple ...READ MORE

May 31 in Big Data Hadoop by ravikiran
• 4,560 points
190 views
0 votes
1 answer

HiveServer2 connection URL format

The HiveServer2 connection URL has the following ...READ MORE

Jun 4 in Big Data Hadoop by Giri
17 views
0 votes
1 answer

Connecting to HiveServer2 with SSL enabled.

The connection URL format to connect to ...READ MORE

Jun 4 in Big Data Hadoop by Dinesh
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1 answer

How to enable impersonation in HiveServer2?

You have to configure 2 files for ...READ MORE

Jun 3 in Big Data Hadoop by Reshma
46 views
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1 answer

Enable pluggable authentication for HiveServer2

To enable pluggable authentication, first, add the ...READ MORE

Jun 3 in Big Data Hadoop by Yogi
44 views
0 votes
1 answer

Installing WebHCat on a SLES OS

apt-get is used for Ubuntu or other debian ...READ MORE

Jun 3 in Big Data Hadoop by Emily
36 views
0 votes
1 answer

Hive Server 2 configuration for Kerberos Secured Cluster

Hi @Rasheed. You are right, to enable ...READ MORE

Jun 3 in Big Data Hadoop by Esha
40 views
0 votes
1 answer

Installing WebHCat on Ubuntu

To install WebHCat on ubuntu using apt-get, ...READ MORE

Jun 3 in Big Data Hadoop by Richard
32 views
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How to install WebHCat Rest server on Centos?

Open the terminal and run the following ...READ MORE

Jun 3 in Big Data Hadoop by Harry
32 views
0 votes
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Enabling LDAP authentication for HiveServer2 using OpenLdAP

To enable LDAP authentication using OpenLDAP, include ...READ MORE

Jun 3 in Big Data Hadoop by Tina
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How to set LDAP authentication for HiveServer2 for unmanaged clusters?

To enable LDAP authentication for HiveServer2 unmanaged ...READ MORE

Jun 3 in Big Data Hadoop by Sanman
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1 answer

How to set alternate user for new connection in Hue?

You can use the hive.server2.proxy.user property to do ...READ MORE

Jun 3 in Big Data Hadoop by Lohith
26 views
0 votes
1 answer

How to enable LDAP authenticaition in Hue?

You can enable LDAP authentication with HiveServer2 by ...READ MORE

Jun 3 in Big Data Hadoop by Bhavan
27 views
0 votes
1 answer

Disable Client/Server authentication in Hue

To disable the Client/Server authentication, you have ...READ MORE

Jun 3 in Big Data Hadoop by Preetham
24 views
0 votes
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HiveServer2: Enable LDAP Authentication for managed clusters

Follow the below mentioned steps to enable ...READ MORE

Jun 3 in Big Data Hadoop by Karan
22 views
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1 answer

Connect Beeline to Secure Hive Server2

Use the following command to start beeline and connect ...READ MORE

Jun 3 in Big Data Hadoop by Hanan
20 views
0 votes
1 answer

Hive: Display column to which there is SELECT access

You can use the following query to ...READ MORE

Jun 3 in Big Data Hadoop by Pratham
19 views
0 votes
1 answer

How to set Hive Server port?

You can set the port in the hive-site.xml file. ...READ MORE

May 31 in Big Data Hadoop by Aisha
125 views
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why do we need MaPReduce in BigData Hadoop?

What is the need of MapReduce in ...READ MORE

Jun 3 in Big Data Hadoop by Rajnish
31 views
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Read Parquet file using hdfs dfs -cat command

When you try to read a parquet ...READ MORE

May 24 in Big Data Hadoop by Calvin
418 views
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Hive: external table without URI scheme

Yes, it is possible to create an ...READ MORE

May 31 in Big Data Hadoop by Daniel
68 views
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How to Create a table with region replication in Hbase?

Hi, Region replication is a per-table property. All ...READ MORE

May 31 in Big Data Hadoop by Gitika
• 25,340 points
59 views