Impala

Sizing requirements for Impala can vary significantly depending on the size and types of workloads using Impala.


Component	Native Memory	JVM Heap	CPU	Disk
Impala Daemon	Set this value using the Impala Daemon Memory Limit configuration property. Minimum: 32 GB Recommended: 128 GB	Set this value using the Java Heap Size of Impala Daemon in Bytes configuration property for the Coordinator Impala Daemons. Minimum: 4 GB Recommended: 8 GB	Minimum: 4 Recommended: 16 or more CPU instruction set: AVX2	Minimum: 1 disk Recommended: 8 or more
Catalog Server	Set this value using the Java Heap Size of Catalog Server in Bytes configuration property. Minimum: 4 GB Recommended: 8 GB		Minimum: 4 Recommended: 16 or more CPU instruction set: AVX2	Minimum and Recommended: 1 disk

For the networking topology for multi-rack cluster, Leaf-Spine is recommended for the optimal performance.