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Connection Retry

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Sohu Tech Products
Sohu Tech Products
Aug 23, 2023 · Backend Development

Analysis of Service Avalanche Caused by Jedis Parameter Misconfiguration During Redis Cluster Failover

During a Redis 3.x cluster master‑slave failover, the default Jedis connection timeout of two seconds combined with six automatic retries caused each request’s Redis calls to accumulate up to sixty seconds of latency, triggering Nginx timeouts and a service‑avalanche, which was resolved by lowering timeout and retry settings.

Backend DevelopmentCluster FailoverConnection Retry
0 likes · 13 min read
Analysis of Service Avalanche Caused by Jedis Parameter Misconfiguration During Redis Cluster Failover
vivo Internet Technology
vivo Internet Technology
Jul 19, 2023 · Databases

Analysis of Service Avalanche Caused by Misconfigured Jedis Parameters During Redis Cluster Master‑Slave Switch

A service‑wide avalanche occurred when a Redis 3.x master‑slave failover coincided with Jedis’ default 2‑second connection timeout and six retry attempts, causing up to 60‑second latencies; adjusting connectionTimeout, soTimeout to 100 ms and reducing maxAttempts to two limited latency to about one second and prevented cascade failures.

Connection RetryJedisRedis
0 likes · 13 min read
Analysis of Service Avalanche Caused by Misconfigured Jedis Parameters During Redis Cluster Master‑Slave Switch