Posted 2023-11-01Updated 2025-06-02a few seconds read (About 37 words)

服務無法啟動，Kafka Broker doesn’t find cluster id

移除meta.properties.

參考:https://stackoverflow.com/questions/59592518/kafka-broker-doesnt-find-cluster-id-and-creates-new-one-after-docker-restart

Posted 2023-11-01Updated 2025-06-02a few seconds read (About 12 words)

Ubuntu好用套件

資源監視器btop

https://github.com/aristocratos/bpytop#installation

Posted 2023-10-27Updated 2025-06-024 minutes read (About 544 words)

apt相關問題

apt找不到key或重複套件，刪掉有問題的apt key

sudo rm /etc/apt/sources.list.d/*cuda*

查看所有可以安裝的版本

apt-cache madison cuda

https://askubuntu.com/questions/447/how-can-i-see-all-versions-of-a-package-that-are-available-in-the-archive

刪除apt key

顯示所有key
apt-key list顯示結果如下

/etc/apt/trusted.gpg
--------------------
pub   rsa4096 2022-05-05 [SCEA]
      8298 D919 610D E70B 90CE  DAAE EE38 2EF7 8230 7095
uid           [ unknown] TensorRT <svc_tensorrt@nvidia.com>

/etc/apt/trusted.gpg.d/flexiondotorg_ubuntu_nvtop.gpg
-----------------------------------------------------
pub   rsa1024 2011-03-16 [SC]
      824A 27DD 09DE DA33 BF78  3596 2EA8 F357 93D8 809A
uid           [ unknown] Launchpad PPA for Martin Wimpress

/etc/apt/trusted.gpg.d/graphics-drivers_ubuntu_ppa.gpg
------------------------------------------------------
pub   rsa4096 2015-08-12 [SC]
      2388 FF3B E10A 76F6 38F8  0723 FCAE 110B 1118 213C
uid           [ unknown] Launchpad PPA for Graphics Drivers Team

刪掉key
以下面為例，key ID就是最後8碼82307095，sudo apt-key del 82307095就可以刪除

/etc/apt/trusted.gpg
--------------------
pub   rsa4096 2022-05-05 [SCEA]
      8298 D919 610D E70B 90CE  DAAE EE38 2EF7 8230 7095
uid           [ unknown] TensorRT <svc_tensorrt@nvidia.com>

解決Unmet dependencies問題

用dpkg -P package-name來移除有問題的套件，他會顯示不能移除的原因，然後依序移除即可
直接用dpkg安裝套件，如果有缺少的相依套件，之後使用apt install就會顯示E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).錯誤，必須要手動解決相依性問提

apt install使用local repo

參考: https://wiki.debian.org/DebianRepository/Setup?action=show&redirect=DebianRepository%2FHowTo%2FTrivialRepository#trivialArchive

Quick instructions to create a trivial local archive with apt-ftparchive
We use /var/lib/mydebs as the example location

Create the directory

  mkdir -p /var/lib/mydebs
Every time you put new files in the directory, you'll have to scan the directory and update:

  cd /var/lib/mydebs
  apt-ftparchive packages . > Packages
  apt-ftparchive release . > Release
Add this line to /etc/apt/sources.list

  deb [allow-insecure=yes] file:/var/lib/mydebs ./
Now you can install the package normally. If apt-get asks "Install these packages without verification?", answer "Y" to install. That's because this local repository is not signed.

  apt-get update
  apt-get install mydeb

刪除apt gpg key 和repo

https://itslinuxfoss.com/delete-repository-and-gpg-key-ubuntu/#2

查看套件版本

dpkg-query -W tensorrt

用apt 查看可安裝的版本

apt-cache policy <package name>

例如

$ apt-cache policy gparted
gparted:
  Installed: 0.16.1-1
  Candidate: 0.16.1-1
  Version table:
 *** 0.16.1-1 0
        500 http://ubuntu.inode.at/ubuntu/ saucy/main amd64 Packages
        100 /var/lib/dpkg/status

安裝指定版本
sudo apt-get install <package name>=<version>
例如上面的例子

$ sudo apt-get install gparted=0.16.1-1
Reading package lists... Done
Building dependency tree       
Reading state information... Done
gparted is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 265 not upgraded.

Posted 2023-10-10Updated 2025-06-02a few seconds read (About 58 words)

CodeInterview

BigO

時間複雜度相加還是相乘
相加

Add the Runtimes: 0 (A  +  B) 
1  for  (int  a  :  arrA)  { 
2      print(a); 
3  } 
4 
5  for  (int  b  :  arrB)  { 
6      print(b) ; 
7  }

相乘:

Multiply the Runtimes: O(A* B) 
1  for  (int  a  :  arrA)  { 
2      for  (int  b  :  arrB)  { 
3          print(a  +  " , "  +  b); 
4      }     
5  }

遞迴的時間複雜度

Posted 2023-10-07Updated 2025-06-02a few seconds read (About 0 words)

多媒體伺服器mediaserver

Posted 2023-10-05Updated 2025-06-02a few seconds read (About 18 words)

Ubuntu root資料夾滿了

安裝ncdu檢查是哪一個資料夾滿了
sudo apt install ncdu

Posted 2023-09-22Updated 2025-06-02a few seconds read (About 57 words)

行人屬性辨識

參考:
https://cynthiachuang.github.io/Survey-Pedestrian-Attribute-Recognition/

Pedestrian-Attribute-Recognition-Paper-List

https://github.com/2014gaokao/pedestrian-attribute-recognition-with-GCN

https://github.com/valencebond/Rethinking_of_PAR/blob/master/infer.py

https://github.com/cxh0519/VTB

https://github.com/dangweili/pedestrian-attribute-recognition-pytorch

Posted 2023-09-21Updated 2025-06-02a few seconds read (About 59 words)

印出requests內容

import http
import requests
def patch_send():
    old_send = http.client.HTTPConnection.send
    def new_send(self, data):
        print(f'{"-"*9} BEGIN REQUEST {"-"*9}')
        print(data.decode('utf-8').strip())
        print(f'{"-"*10} END REQUEST {"-"*10}')
        return old_send(self, data)
    http.client.HTTPConnection.send = new_send
patch_send()
requests.get("http://secariolabs.com")