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marwei / how_to_reset_kafka_consumer_group_offset.md
Created November 9, 2017 23:39
How to Reset Kafka Consumer Group Offset

Kafka 0.11.0.0 (Confluent 3.3.0) added support to manipulate offsets for a consumer group via cli kafka-consumer-groups command.

  1. List the topics to which the group is subscribed
kafka-consumer-groups --bootstrap-server <kafkahost:port> --group <group_id> --describe

Note the values under "CURRENT-OFFSET" and "LOG-END-OFFSET". "CURRENT-OFFSET" is the offset where this consumer group is currently at in each of the partitions.

  1. Reset the consumer offset for a topic (preview)



  


  




    


          
    

      

        
        

          

              @paulirish
          

          

            
                paulirish
                / how-to-view-source-of-chrome-extension.md
            
            

              Last active
              June 10, 2024 15:16
            

              
                How to view-source of a Chrome extension
              
          

        

      

        

  

      

    
Option 1: Command-line download extension as zip and extract


extension_id=jifpbeccnghkjeaalbbjmodiffmgedin   # change this ID
curl -L -o "$extension_id.zip" "https://clients2.google.com/service/update2/crx?response=redirect&os=mac&arch=x86-64&nacl_arch=x86-64&prod=chromecrx&prodchannel=stable&prodversion=44.0.2403.130&x=id%3D$extension_id%26uc" 
unzip -d "$extension_id-source" "$extension_id.zip"


Thx to crxviewer for the magic download URL.



  


  




    


          
    

      

        
        

          

              @grantslatton
          

          

            
                grantslatton
                / hngen.py
            
            

              Last active
              September 27, 2021 11:07
            

              
                A program that uses Markov chains to generate probabilistic Hacker News titles.
              
          

        

      

        

  

    
    


        



  


  

        

          
          import urllib2
        

        

          
          import re
        

        

          
          import sys
        

        

          
          from collections import defaultdict
        

        

          
          from random import random
        

        

          
          

        

        

          
          """
        

        

          
          PLEASE DO NOT RUN THIS QUOTED CODE FOR THE SAKE OF daemonology's SERVER, IT IS 
        

        

          
          NOT MY SERVER AND I FEEL BAD FOR ABUSING IT. JUST GET THE RESULTS OF THE 
        

        

          
          CRAWL HERE: http://pastebin.com/raw.php?i=nqpsnTtW AND SAVE THEM TO "archive.txt"
        

  





    


  




    


          
    

      

        
        

          

              @christianroman
          

          

            
                christianroman
                / test.py
            
            

              Created
              May 30, 2013 16:02
            

              
                Bypass Captcha using 10 lines of code with Python, OpenCV & Tesseract OCR engine
              
          

        

      

        

  

    
    


        



  


  

        

          
          import cv2.cv as cv
        

        

          
          import tesseract
        

        

          
          gray = cv.LoadImage('captcha.jpeg', cv.CV_LOAD_IMAGE_GRAYSCALE)
        

        

          
          cv.Threshold(gray, gray, 231, 255, cv.CV_THRESH_BINARY)
        

        

          
          api = tesseract.TessBaseAPI()
        

        

          
          api.Init(".","eng",tesseract.OEM_DEFAULT)
        

        

          
          api.SetVariable("tessedit_char_whitelist", "0123456789abcdefghijklmnopqrstuvwxyz")
        

        

          
          api.SetPageSegMode(tesseract.PSM_SINGLE_WORD)
        

        

          
          tesseract.SetCvImage(gray,api)
        

        

          
          print api.GetUTF8Text()