Tagged articles

replica migration

3 articles · Page 1 of 1

Apr 6, 2025 · Databases

Accelerating StarRocks Node Decommissioning via tablet_sched_slot_num_per_path Tuning

The author decommissioned three StarRocks nodes with over 1M tablets each; default replica migration moved only 200k replicas in 24 hours, so they increased tablet_sched_slot_num_per_path from 2 to 32 per disk during off-peak, achieving 800k+ replicas migrated per node in 8 hours while monitoring disk I/O.

StarRocksdatabase administrationnode decommissioning

0 likes · 4 min read

Accelerating StarRocks Node Decommissioning via tablet_sched_slot_num_per_path Tuning

ITPUB

Jun 4, 2022 · Operations

Mastering Kafka Load Balancing with Cruise Control: From Manual Migration to Automated Optimization

This article explains why Kafka suffers from broker‑side load imbalance, walks through manual replica migration examples, and then details how Cruise Control automates load balancing, supports resource‑group targeting, leader‑replica dispersion, and provides step‑by‑step deployment instructions.

Cruise ControlKafkaOperations

0 likes · 21 min read

Mastering Kafka Load Balancing with Cruise Control: From Manual Migration to Automated Optimization

vivo Internet Technology

May 31, 2022 · Big Data

Kafka Load Balancing and Cruise Control: Concepts, Manual Migration, and Deployment

Kafka’s server‑side load imbalance, caused by static replica placement on broker disks, makes manual replica migration infeasible at scale, but Cruise Control automates metric collection, analysis, and execution of fine‑grained rebalance plans—including broker de‑commissioning and leader dispersion—allowing large clusters to expand and operate efficiently.

Cruise ControlKafkabig data

0 likes · 21 min read

Kafka Load Balancing and Cruise Control: Concepts, Manual Migration, and Deployment