2025-09-14 21:52:36 +00:00
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# BOL-IGW站点多台NPB设备产生TSG-OS container restart告警
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| ID | Creation Date | Assignee | Status |
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|----|----------------|----------|--------|
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| OMPUB-1446 | 2024-09-02T20:06:19.000+0800 | 杨威 | 开放 |
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---
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No description
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---
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**yangwei** commented on *2024-09-03T11:20:14.754+0800*:
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现场
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* Bole-IGW两组共计10个NPB，除Bole-IGW T9K02 NPB05外，其余所有traffic_engine均在9月1日00:40~00:42之间出现重启，触发现场为marsio报no mbuf
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分析
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* 检查触发重启的NPB日志
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** firewall进程在00:42均出现CPU使用超过99%的告警，范围为所有包处理核
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!image-2024-09-03-10-45-22-623.png|width=536,height=179!
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*
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** 未触发重启的NPB05，在同一时刻也有上述CPU使用超99%的告警，持续2s后消失，推测该NPB当时剩余mbuf较其他节点稍多，因此未触发marsio的no mbuf，同时该NPB也并未触发死锁检测告警。
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** 由于firewall所有包处理线程CPU使用率接近100%，导致未及时处理marsio缓冲队列中的mbuf，大部分NPB在1s内触发marsio no mbuf告警
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* 检查未重启的NPB监控
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** 重启时段为流量低谷期，在00:41左右明显出现udp新建上涨，同时monitor命中也从每秒100~300突增至9k+
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!image-2024-09-03-11-03-22-597.png|width=389,height=266!!image-2024-09-03-11-07-07-174.png|width=393,height=277!
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结论
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* 综上，根据现场的日志和监控，推测重启的原因为9.1 00:41时刻，Bole-IGW站点所有NPB收到突增的UDP流量，同时大量命中monitor策略，所有处理线程CPU使用超过99%，触发marsio no mbuf告警导致所有pod重启。
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问题
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* 突发流量持续时间较短（日志显示约1~2s），除NPB05外，其余NPB未到达overload protection最小检测周期1s即已触发marsio no mbuf，firewall需要考虑调整过载保护的检测周期至更细粒度。
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* 考虑增加对monitor策略命中速率的限制
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---
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2025-09-14 22:26:17 +00:00
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# Attachments
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2025-09-14 21:52:36 +00:00
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2025-09-14 22:26:17 +00:00
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Attachment: image-2024-09-03-10-45-22-623.png
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2025-09-14 21:52:36 +00:00
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2025-09-14 22:26:17 +00:00
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Attachment: image-2024-09-03-11-03-22-597.png
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Attachment: image-2024-09-03-11-07-07-174.png
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2025-09-14 21:52:36 +00:00
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