Improve Amazon EMR HBase availability and tail latency using generational ZGC
Big Data Blog
The article discusses how Amazon EMR improves HBase performance and availability by introducing generational Z Garbage Collector (ZGC) in JDK 21, addressing critical challenges with garbage collection pauses.
- Generational ZGC provides sub-millisecond pause times, reducing tail latency
- Testing showed uptime improvement from 98.08% to 99.99% compared to G1 GC
- ZGC efficiently handles both short-lived and long-lived objects in HBase workloads
- New configuration options include fixed JVM heap and pre-touch memory allocation
- Recommended for improving HBase cluster performance and stability
The solution offers more predictable performance and reduced latency spikes for business-critical HBase applications running on Amazon EMR.
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