ITPUB
Jun 27, 2026 · Databases
Why Does Database Master‑Slave Replication Lag Every Day at 5‑7 AM?
The article investigates why master‑slave replication delay spikes each morning between 05:00 and 07:00, tracing it to the inventory‑snapshot worker that floods binlog traffic, evaluates five mitigation strategies, implements a big‑data extraction pipeline to Elasticsearch, and reports that the nightly delay disappeared and disk utilization improved.
BDPElasticsearchbig data extraction
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