why impala is faster than hive - Wikitechy https://www.wikitechy.com/interview-questions/tag/why-impala-is-faster-than-hive/ Interview Questions Sat, 11 Sep 2021 11:54:01 +0000 en-US hourly 1 https://wordpress.org/?v=6.9 https://www.wikitechy.com/interview-questions/wp-content/uploads/2025/10/cropped-wikitechy-icon-32x32.png why impala is faster than hive - Wikitechy https://www.wikitechy.com/interview-questions/tag/why-impala-is-faster-than-hive/ 32 32 What is the difference between Impala and Apache Hive ? https://www.wikitechy.com/interview-questions/cloudera-impala/what-is-the-difference-between-impala-and-apache-hive/ https://www.wikitechy.com/interview-questions/cloudera-impala/what-is-the-difference-between-impala-and-apache-hive/#respond Mon, 19 Jul 2021 06:40:04 +0000 https://www.wikitechy.com/interview-questions/?p=1024

Difference between Impala and Apache Hive

Impala Apache hive
Impala does runtime code generations
for “big loops ” using llvm.		 Apache hive generates query
expressions at compile time.
Hadoop 2.6.0 Hadoop 2.7.3
Runtime Filtering Optimization Enabled All queries run through LLAP
Parquet format with snappy compression ORCFile format with zlib compression
Impala avoids startup overhead
as daemon processes are started at boot
time itself, always being ready to processes a query.		 Every hive query has this problem
of “cold start”.
Impala is meant for interactive computing. Apache Hive might not be ideal
for interactive computing .
Impala is more like MPP database. Hive is batch based Hadoop MapReduce .
Impala does not support complex types. Hive supports complex types .
Impala does not support fault tolerance Apache Hive is fault tolerant
hive-architecture

rimpala
]]> https://www.wikitechy.com/interview-questions/cloudera-impala/what-is-the-difference-between-impala-and-apache-hive/feed/ 0 What is the Difference between apache hive and impala ? https://www.wikitechy.com/interview-questions/hive/what-is-the-difference-between-apache-hive-and-impala/ https://www.wikitechy.com/interview-questions/hive/what-is-the-difference-between-apache-hive-and-impala/#respond Tue, 13 Jul 2021 22:18:19 +0000 https://www.wikitechy.com/interview-questions/?p=598 Apache hive Vs Impala
Apache hive Impala
Hive generates query expressions at compile
time;Hive is batch based Hadoop MapReduce		 Impala does not support for complex types
and fault tolerance.
Apache does not generations runtime code
for “big loops ” using llvm.		 Impala does generations runtime code
for “big loops ” using llvm.
Hadoop 2.7.3 Hadoop 2.6.0
All queries run through LLAP Runtime Filtering Optimization Enabled
ORCFile format with zlib compression Parquet format with snappy compression
Every hive query has this problem of “cold start”. Impala avoids startup overhead as daemon
processes are started at boot time itself,
always being ready to processes a query.
Apache Hive might not be ideal for interactive computing Impala is meant for interactive computing.
Hive is batch based Hadoop MapReduce. Impala is more like MPP database.
Hive supports complex types. Impala does not support complex types.
Apache Hive is fault tolerant. Impala does not support fault tolerance.
It is more universal, versatile and pluggable language. It is used unleash its brute processing power
and give lightning fast analytic results.
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