jpuyy的网志

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  • git 分支重命名 rename branch

    本地 branch 重命名 foo => bar

    1. 本地重命名，切到分支 foo

    git branch -m bar

    或者直接重命名

    git branch -m foo bar

    2. 如果分支已经在远端，查看远端 origin

    git remote show origin

  Remote branches:
    foo    tracked
    master tracked
  Local branch configured for 'git pull':
    master merges with remote master
  Local refs configured for 'git push':
    foo    pushes to foo    (up to date)
    master pushes to master (up to date)

    这就需要把本地分支 bar push 上去，把 foo 分支删掉

    git push origin :foo bar
 - [deleted]         foo
 * [new branch]      bar -> bar

    最后在本地的 bar 分支下把 upstream 设置好

    git push origin -u bar
Branch bar set up to track remote branch bar from origin.

    查看远端 origin

    git remote show origin

  Remote branches:
    bar    tracked
    master tracked
  Local branches configured for 'git pull':
    bar    merges with remote bar
    master merges with remote master
  Local refs configured for 'git push':
    bar    pushes to bar    (up to date)
    master pushes to master (up to date)

    删除远端分支

     git push origin :feature/upgrade-gke                                                                                                                    master * ] 12:02 PM
To github.com:xxx/yyy.git
 - [deleted]         feature/upgrade-gke

  • kafka topic 创建和删除

    创建

    bin/kafka-topics.sh --create --zookeeper localhost:2181 --topic api-gateway --partitions 1 --replication-factor 3

    删除

    bin/kafka-topics.sh --delete --zookeeper localhost:2181 --topic api-gateway

    查看

    /kafka-topics.sh --list --zookeeper localhost:2181

  • etcdctl

    检测 etcd 状态

    etcdctl --endpoints http://127.0.0.1:4001 cluster-health

    etcdctl member list
996585598035175a, started, etcd-0, http://etcd-0.etcd:2380, http://etcd-0.etcd:2379
9a7f19668a394adb, started, etcd-1, http://etcd-1.etcd:2380, http://etcd-1.etcd:2379
92dc397d93504108, started, etcd-2, http://etcd-2.etcd:2380, http://etcd-2.etcd:2379

    # etcdctl --endpoints=[etcd-0.etcd:2379,etcd-1.etcd:2379,etcd-2.etcd:2379] endpoint health
etcd-0.etcd:2379 is healthy: successfully committed proposal: took = 4.658206ms
etcd-2.etcd:2379 is healthy: successfully committed proposal: took = 5.670776ms
etcd-1.etcd:2379 is healthy: successfully committed proposal: took = 5.608339ms

    查看所有 a 开头的 key

    etcdctl-3.2.26 get a --prefix --keys-only

    查看所有 key

    ETCDCTL_API=3 etcdctl get "" --prefix --keys-only

    备份

    etcdctl --endpoints=[etcd-0.etcd:2379,etcd-1.etcd:2379,etcd-2.etcd:2379]  snapshot save snapshot.db

  • macOS 屏幕相关

    1. mission control => 触发角 => 启用屏幕保护程序 or 将显示器置入睡眠状态
    2. 安全性与隐私 => 进入睡眠或开始屏幕保护程序 立即 要求输入密码

    接下来使用触发角就可以立即锁屏了

    新版 mac 使用 ctrl + command + q

    Question: how to quick switch between mirror and extended display in macOS
    切换 mirror 和 扩展模式: command + F1
    If you need to temporarily see your Dock or your open windows on both displays, Command-F1 lets you accomplish this. It’s a shortcut to the System Preferences > Displays > Arrangement > Mirror Displays command.

  • bee 自动运行 go 项目

    当源代码有过修改之后，自动 build 重启

    ~/go/bin/bee run logan

  • kafka修改 topic retention

    查看所有的 topic

    bin/kafka-topics.sh --list --zookeeper localhost:2181

    修改为 60s

    
# bin/kafka-configs.sh --zookeeper localhost:2181 --alter --entity-name provider-service --entity-type topics --add-config retention.ms=60000

    查看

    # bin/kafka-configs.sh --zookeeper localhost:2181 --describe --entity-name provider-service --entity-type topics
Configs for topics:provider-service are retention.ms=60000