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14 total results found

Kernel Logs

Fluent Bit Inputs

https://docs.fluentbit.io/manual/pipeline/inputs/kernel-logs Configuration [INPUT] Name kmsg Tag kernel [OUTPUT] Name stdout Match kube.* Json_date_key timestamp Json_date_format iso8601 Format json [2025/01/22 08:22:29] [er...

kernel
status
todo
fluent-bit

Persistent Connection Issue

gRPC

Make A Test Use latest GRPC version. Client A call Service B on pod B1. Pod B1 die. Weather Client A will transfer to pod B2? Reference https://groups.google.com/g/grpc-io/c/_Kr71gYtQrw?pli=1

grpc
connection
long-lived
status
todo

Labels and Selectors

K8s Objects

https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/

k8s
objects
label
selector
status
todo

Sysctl Kernel Parameters

K8s Others

https://kubernetes.io/docs/tasks/administer-cluster/sysctl-cluster/

k8s
kernel
sysctl
status
todo

External Traffic Policy

K8s Services Networking

简介 在 Kubernetes 中,externalTrafficPolicy 是 Service(尤其是类型为 LoadBalancer 或 NodePort 的服务)的一项设置,用于控制来自集群外部的流量如何被路由到后端 Pod。 它有两个可选值: Cluster: 默认 行为:外部流量会先到达任意节点(例如通过负载均衡器或 NodePort 接收到请求),然后由 kube-proxy 在集群内转发到任意一个后端 Pod(可能在其他节点)。 优点: 更好的负载均衡,因为可以使用所有后端 Pod。 缺点...

k8s
network
external-traffic
status
todo

Headless Service

K8s Services Networking

Kafka Example kubectl get svc | grep kafkakafka NodePort 10.96.3.138 <none> 9092:11981/TCP 279d kafka-broker-headless ClusterIP None <none> 9094/TCP,9092/TCP 279d kafka-controller-headless Clus...

k8s
service
headless
status
todo

PVC/PV/SC/NFS

K8s Storage

k8s
pvc
pv
storage-class
nfs
status
todo

Shard & Replicas

ClickHouse Manual

clickhouse
shard
replicas
status
todo
database

Split Brain

Redis Sentinel

database
sentinel
status
todo

KRaft

Kafka Manual

middleware
kafka
kraft
status
todo

NodePort Access

Kafka Manual

Listerners 不区分外部和内部网络,只有一个监听端口(PLAINTEXT://:9092),Kafka 内部通信(broker 与 broker)和外部客户端(本地、测试工具等)都走这个端口。 listeners=PLAINTEXT://:9092 advertised.listeners=PLAINTEXT://123.123.123.123:31092 listener.security.protocol.map=PLAINTEXT:PLAINTEXT 区分多个类型 listeners=CLIENT...

status
todo
middleware
kafka
nodeport

Real IP

Nginx Configuration

A: 透传客户端真实IP有没有场景是双层nginx透传的 B: 目前只有 nginx 透传 istio 或者 f5 透传 istio 的吧 A: code的30004有一个自己的nginx做透传,然后整体平台前面还有一个nginx代理 C: 你只需要关心TCP那层就可以,Code获取真实IP是通过Haproxy的Proxy Protocol v2 协议,所以只需要支持这个协议就可以,Nginx、haproxy 都可以 A: 两个nginx绕过任意一个都能透传,放在一起就有问题,我在家里复现下 A: Ngi...

middleware
nginx
status
todo

IPVS

Linux Networking

operating-system
linux
networking
ipvs
status
todo

Scanner

Linux Networking

Nmap Subfinder

operating-system
linux
networking
scan
status
todo