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Hive - Optimising a self-join

Optimizing Self Joins in Hive A Guide to Faster Queries Hive a popular data warehouse system built on Hadoop offers a powerful platform for analyzing large data

3 min read 07-10-2024 22
Hive - Optimising a self-join
Hive - Optimising a self-join

"INFO : Tez session hasn't been created yet. Opening session" hang

Understanding and Resolving the INFO Tez session hasnt been created yet Opening session Hang in Apache Hive Have you encountered the frustrating INFO Tez sessio

2 min read 07-10-2024 19
"INFO : Tez session hasn't been created yet. Opening session" hang
"INFO : Tez session hasn't been created yet. Opening session" hang

How to cast array<int> to string in hive?

Transforming Hives Array int into Strings A Comprehensive Guide Hive a data warehousing system built on Hadoop often presents unique challenges when working wit

2 min read 07-10-2024 44
How to cast array<int> to string in hive?
How to cast array<int> to string in hive?

Hive lateral view explode with 2 table joins

Demystifying Hive Lateral View Explode with Multiple Table Joins Understanding how to efficiently manipulate data within Hive can be a challenge particularly wh

2 min read 07-10-2024 36
Hive lateral view explode with 2 table joins
Hive lateral view explode with 2 table joins

how to add columns to existing hive external table?

Adding Columns to Existing Hive External Tables A Comprehensive Guide The Problem You have an existing external Hive table that needs additional columns Maybe y

3 min read 06-10-2024 45
how to add columns to existing hive external table?
how to add columns to existing hive external table?

Split function in HIVE

Mastering the Split Function in HIVE Unraveling Data with Precision In the world of big data efficiently extracting information from structured and unstructured

2 min read 06-10-2024 39
Split function in HIVE
Split function in HIVE

Raw json field type in hive

Demystifying the Raw JSON Field Type in Hive The world of data is increasingly diverse with JSON Java Script Object Notation becoming a ubiquitous format for st

2 min read 06-10-2024 42
Raw json field type in hive
Raw json field type in hive

Dbeaver Exception: Data Source was invalid

Dbeaver Error Data Source Was Invalid A Comprehensive Guide to Troubleshooting The Problem and its Rephrasing Dbeaver a popular open source database tool someti

2 min read 06-10-2024 53
Dbeaver Exception: Data Source was invalid
Dbeaver Exception: Data Source was invalid

Getting FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask exception while access Hive views

FAILED Execution Error return code 2 from org apache hadoop hive ql exec mr Map Red Task Debugging Hive View Access Errors Have you encountered the dreaded FAIL

3 min read 06-10-2024 50
Getting FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask exception while access Hive views
Getting FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask exception while access Hive views

Inserting a Python Dataframe into Hive from an external server

Seamlessly Loading Your Python Data Frames into Hive A Comprehensive Guide Scenario You ve meticulously crafted your Python Data Frame brimming with valuable in

2 min read 06-10-2024 46
Inserting a Python Dataframe into Hive from an external server
Inserting a Python Dataframe into Hive from an external server

How to connect Spark SQL to remote Hive metastore (via thrift protocol) with no hive-site.xml?

How to Connect Spark SQL to Remote Hive Metastore via Thrift Protocol Without hive site xml In modern data engineering Apache Spark has emerged as a leading big

3 min read 06-10-2024 48
How to connect Spark SQL to remote Hive metastore (via thrift protocol) with no hive-site.xml?
How to connect Spark SQL to remote Hive metastore (via thrift protocol) with no hive-site.xml?

error in initSerDe : java.lang.ClassNotFoundException class org.apache.hive.hcatalog.data.JsonSerDe not found

java lang Class Not Found Exception org apache hive hcatalog data Json Ser De not found Decoding the Hive JSON Ser De Error This error message often pops up whe

3 min read 06-10-2024 56
error in initSerDe : java.lang.ClassNotFoundException class org.apache.hive.hcatalog.data.JsonSerDe not found
error in initSerDe : java.lang.ClassNotFoundException class org.apache.hive.hcatalog.data.JsonSerDe not found

hive issue when activating yarn FairScheduler

Hive on Yarn Taming the Fair Scheduler Beast The Problem Hive and Fair Scheduler Conflicts Hive a data warehousing system built on top of Hadoop relies heavily

3 min read 05-10-2024 48
hive issue when activating yarn FairScheduler
hive issue when activating yarn FairScheduler

Is there a way to insert new record for iceberg table using pyiceberg api?

Inserting Records into Iceberg Tables with the Py Iceberg API The Py Iceberg API provides a powerful and efficient way to interact with Iceberg tables including

2 min read 05-10-2024 51
Is there a way to insert new record for iceberg table using pyiceberg api?
Is there a way to insert new record for iceberg table using pyiceberg api?

Created Hive tables STORED BY ICEBERG; SELECT * returns empty

Hive Tables STORED BY ICEBERG Returning Empty Results Troubleshooting and Solutions Scenario You ve created Hive tables using the ICEBERG storage format but whe

3 min read 04-10-2024 52
Created Hive tables STORED BY ICEBERG; SELECT * returns empty
Created Hive tables STORED BY ICEBERG; SELECT * returns empty

'schematool' is not recognized as an internal or external command, operable program or batch file, in win 10 when I try to run hive commands

Resolving the schematool is not recognized as an internal or external command Error in Windows 10 If you re attempting to run Hive commands on Windows 10 and en

3 min read 30-09-2024 50
'schematool' is not recognized as an internal or external command, operable program or batch file, in win 10 when I try to run hive commands
'schematool' is not recognized as an internal or external command, operable program or batch file, in win 10 when I try to run hive commands

Apache pig throwing Nullpointer exception when filtering using a parameter ERROR 2000: Error processing rule PartitionFilterOptimizer

Understanding and Resolving Apache Pigs Null Pointer Exception with Partition Filter Optimizer Apache Pig is a high level platform for creating programs that ru

3 min read 28-09-2024 46
Apache pig throwing Nullpointer exception when filtering using a parameter ERROR 2000: Error processing rule PartitionFilterOptimizer
Apache pig throwing Nullpointer exception when filtering using a parameter ERROR 2000: Error processing rule PartitionFilterOptimizer

Hive Table Issues with MSCK REPAIR and Alter Table Operations

Understanding Hive Table Issues with MSCK REPAIR and ALTER TABLE Operations When working with Apache Hive users may encounter several challenges especially when

2 min read 28-09-2024 60
Hive Table Issues with MSCK REPAIR and Alter Table Operations
Hive Table Issues with MSCK REPAIR and Alter Table Operations

Riverpod not rebuiilding the consumerstaful widget and i am using hive

Troubleshooting Riverpod and Hive Ensuring Consumer Stateful Widgets Rebuild Understanding the Issue In Flutter development you may encounter an issue where a C

2 min read 25-09-2024 47
Riverpod not rebuiilding the consumerstaful widget and i am using hive
Riverpod not rebuiilding the consumerstaful widget and i am using hive

Issue with hive.auto.convert.join Setting in Hive 4.0.0

Understanding the Issue with hive auto convert join Setting in Hive 4 0 0 In the ever evolving landscape of big data Apache Hive has remained a steadfast compan

3 min read 25-09-2024 43
Issue with hive.auto.convert.join Setting in Hive 4.0.0
Issue with hive.auto.convert.join Setting in Hive 4.0.0

Does Hive supports information schema?

Understanding Hive and Information Schema Support Apache Hive is a data warehousing infrastructure built on top of Hadoop allowing for easy querying and managin

2 min read 20-09-2024 43
Does Hive supports information schema?
Does Hive supports information schema?

Zeppelin JDBC interpreter SQL port issue

Troubleshooting Zeppelin JDBC Interpreter SQL Port Issues When working with Apache Zeppelin a popular web based notebook for data driven interactive data analyt

2 min read 20-09-2024 55
Zeppelin JDBC interpreter SQL port issue
Zeppelin JDBC interpreter SQL port issue

Not able to set authorization in hive

Understanding Authorization Issues in Apache Hive In the world of big data Apache Hive serves as a pivotal data warehouse infrastructure built on top of Hadoop

2 min read 20-09-2024 47
Not able to set authorization in hive
Not able to set authorization in hive

Hive on Tez insert data fail at org.apache.hive.com.esotericsoftware.kryo.KryoException: Encountered unregistered class ID: 95

Understanding and Resolving Hive on Tez Insert Data Failure Kryo Exception Encountered Unregistered Class ID When working with Hive on Tez developers may encoun

2 min read 19-09-2024 72
Hive on Tez insert data fail at org.apache.hive.com.esotericsoftware.kryo.KryoException: Encountered unregistered class ID: 95
Hive on Tez insert data fail at org.apache.hive.com.esotericsoftware.kryo.KryoException: Encountered unregistered class ID: 95

Hive - data not importing nor inserting

Troubleshooting Hive Data Not Importing or Inserting Hive is a popular data warehouse software built on top of Hadoop designed for managing and querying large d

3 min read 19-09-2024 49
Hive - data not importing nor inserting
Hive - data not importing nor inserting