rahulwa

from typing import List

def is_prime(x: int) -> bool:
  if x > 1:
    for i in range(2, int(x / 2) + 1):
      if (x % i) == 0:
        return False
      break
    else:
      return True

rahulwa

data "aws_ami" "ubuntu" {
  most_recent = true

  filter {
    name   = "name"
    values = ["ubuntu/images/hvm-ssd/ubuntu-bionic-18.04-amd64-server-*"]
  }

  filter {
    name   = "virtualization-type"

rahulwa

<source>
  @type tail
  path /var/log/assignment_server.out.log*
  pos_file /var/run/td-agent/td-agent_position.pos
  tag prod.allocation
  path_key tailed_path
  rotate_wait 5
  read_from_head true
  refresh_interval 60

rahulwa

Content of scripts/test.sh:

#!/bin/bash

# Exit if any of the intermediate steps fail
set -e

# jq will ensure that the values are properly quoted
# and escaped for consumption by the shell.
eval "$(jq -r '@sh "ASG_NAME=\(.asg_name) REGION=\(.region) DC=\(.desired_capacity)"')"

rahulwa

$ ssh -A vm
$ git config --global url."git@github.com:".insteadOf "https://github.com/"
$ cat ~/.gitconfig
[url "git@github.com:"]
	insteadOf = https://github.com/
$ go get github.com/private/repo && echo Success!
Success!

rahulwa

Kafka Topics

List existing topics

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

Describe a topic

bin/kafka-topics.sh --zookeeper localhost:2181 --describe --topic mytopic

Create the topic

unset JMX_PORT; bin/kafka-topics.sh --zookeeper X:2181 --create --topic NAME --replication-factor 3 --partitions 3

Purge a topic

rahulwa

Table of Contents

1. Table of Contents
2. General Usage
3. File Spacing
4. Numbering and Calculations
5. Conversion and Substitution
6. Selective Printing
7. Selective Deletion

rahulwa

--- MEMORY RELATED
--- wal_buffer
SHOW wal_buffers;
SELECT name,setting,unit,current_setting(name) FROM pg_settings WHERE name='wal_buffers';
--- unix: `getconf PAGE_SIZE``getconf _PHYS_PAGES` ... Linux: `ipcs -l` `sysctl kernel.sem`
--- initial parameters of PostgreSQL: https://pgtune.leopard.in.ua/#/
create extension pg_buffercache;
\dx pg_buffercache
--- pg_buffercache has several columns
--- bufferid, the block ID in the server buffer cache

rahulwa

import requests
import os
import logging
import sys
import json
import base64

class Conf:
    '''
    Wrapper on top of consul api to facilitates configuration for Application.

rahulwa

★ Install of core/ffmpeg/3.3.2/20170710172745 complete with 0 new packages installed.
   crawler-development: Resolved dependency 'core/ffmpeg' to /hab/pkgs/core/ffmpeg/3.3.2/20170710172745
   crawler-development: WARN
   crawler-development: WARN The following runtime dependencies have more than one version
   crawler-development: WARN release in the full dependency chain:
   crawler-development: WARN
   crawler-development: WARN   * core/gmp ( core/gmp/6.1.0/20170513202112 core/gmp/6.1.2/20170526062114 )
   crawler-development: WARN
   crawler-development: WARN The current situation usually arises when a Plan has a direct
   crawler-development: WARN dependency on one version of a package (`acme/A/7.0/20160101200001`)