SENTINEL redis network_error ai_generated partial

Sentinel：仲裁节点超时，主节点 'mymaster' 的故障转移已中止

SENTINEL: arbiter node timeout, failover aborted for master 'mymaster'

ID: redis/sentinel-arbiter-timeout-failover

其他格式: JSON · Markdown 中文 · English
78%修复率
84%置信度
1证据数
2023-08-22首次发现

版本兼容性

版本状态引入弃用备注
6.2 active — — —
7.0 active — — —
7.2 active — — —

根因分析

故障转移投票期间，Sentinel 仲裁节点未在配置的超时时间内响应，导致无法达到法定人数。

English

A Sentinel arbiter node failed to respond within the configured timeout during a failover vote, preventing quorum from being reached.

generic

官方文档

https://redis.io/docs/latest/operate/oss_admin/sentinel/

解决方案

  1. Increase the sentinel failover-timeout to give the arbiter more time to respond. Example: SENTINEL SET mymaster failover-timeout 60000 (from 30000 ms default)
  2. Check network connectivity between the Sentinel nodes and the arbiter; reduce latency by ensuring they are in the same datacenter or use a faster network path.
  3. If the arbiter is unreliable, replace it with a more stable Sentinel instance or remove it from the sentinel monitor configuration.

无效尝试

常见但无效的做法:

  1. Increase the sentinel monitor quorum to a higher value to require more votes. 60% 失败

    This increases the required votes but does not fix the arbiter timeout; it may make failover even harder.

  2. Set all Sentinels to have equal weight by removing arbiter designation. 70% 失败

    Arbiters are a concept in some setups; in Redis Sentinel, all nodes vote equally, and removing designation does not address timeout.

  3. Restart the arbiter Sentinel node to clear its state. 50% 失败

    If the timeout is due to network or resource issues, restarting provides only temporary relief.