Linux
, SRE
Q1. 講師的機器無法OOM sitution情況與課程中的情況不同?
A1.
Q2. JAVA容器化是否有相關經驗可以分享?
A2. SDKMan
iptable: 可以看conntrack查看連接數
最常發生問題的地方是rule,
k8s lb也是用iptable
k8s - User space proxy mode
curl - man page
-m/–max-time <seconds>
Maximum time in seconds that you allow the whole operation to take. This is useful for preventing your batch jobs from hanging for hours due to slow networks or links going down. See also the –connect-timeout option.
If this option is used several times, the last one will be used.
多網卡 netstat
[iptable] (https://www.slideshare.net/hongweiqiu/iptables-introduction)
linux tool:
- traceroute
- tracepath
協定 :
https://applezulab.netdpi.net/network/sctp_introduction/4-path-mtu-discovery
PMTU探索(Path MTU discovery)
or
or
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