| from area53 import route53 | |
| from boto.route53.exception import DNSServerError | |
| import requests | |
| import sys | |
| from datetime import datetime | |
| # Modified from https://markcaudill.me/blog/2012/07/dynamic-route53-dns-updating-with-python/ | |
| domain = 'domain.tld' | |
| subdomain = 'subdomain_name' |
| #!/usr/bin/env python2 | |
| # -*- coding: utf-8 -*- | |
| import locale | |
| import subprocess | |
| locale.setlocale(locale.LC_ALL, '') | |
| from libqtile import bar, hook, layout, widget | |
| from libqtile.command import lazy |
#Riak Multi DC Repl Cheat Sheet
##Types There are two types of multi data center replication in Riak.
Fullsync
Operation is triggered by connection creation between clusters, running riak-repl start-fullsync on the listener leader, or every fullsync_interval minutes. Relevant app.config settings:
#Map Reduce Delete Instructions
Set allow_strfun true on all nodes:
echo "rpc:multicall([node() | nodes()], application,set_env,[riak_kv,allow_strfun,true])." | bin/riak attach
Insert 15000 keys:
for i in {1..15000}; do curl -XPUT http://127.0.0.1:9000/buckets/test/keys/test$i -H "content-type: text/plain" -d "Data #$i\n"; done
| # Note that target_env.login and target_env.password is global variables | |
| # Maybe I should add this into Fabric project (http://docs.fabfile.org/en/1.4.2/index.html). | |
| # This is complicated task for sure but it would be nice if Fabric could use ssh under Linux and PowerShell Remoting under Windows. | |
| def remote_sh(target_host, command_text, ignore_error=False): | |
| print('run PowerShell script block at {0}: {1}'.format(target_host, command_text)) | |
| command_text = command_text.replace('"', '\'') |
| Using the nc command you can scan a port or a range of ports to verify whether a UDP port is open and able to receive traffic. | |
| This first command will scan all of the UDP ports from 1 to 65535 and add the results to a text file: | |
| $ nc -vnzu server.ip.address.here 1-65535 > udp-scan-results.txt | |
| This merely tells you that the UDP ports are open and receive traffic. | |
| Perhaps a more revealing test would be to actually transfer a file using UDP. |
| -module(file_utils). | |
| -export([recursively_list_dir/1, | |
| recursively_list_dir/2]). | |
| % @type name() = string() | atom() | binary(). | |
| -type name() :: string() | atom() | binary(). | |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <style> | |
| body { | |
| margin: 40px; | |
| } | |
| a { | |
| display: inline-block; |
| import simplejson as json | |
| import lxml | |
| class objectJSONEncoder(json.JSONEncoder): | |
| """A specialized JSON encoder that can handle simple lxml objectify types | |
| >>> from lxml import objectify | |
| >>> obj = objectify.fromstring("<Book><price>1.50</price><author>W. Shakespeare</author></Book>") | |
| >>> objectJSONEncoder().encode(obj) | |
| '{"price": 1.5, "author": "W. Shakespeare"}' | |
| """ |
| -module(date_util). | |
| -compile(export_all). | |
| epoch() -> | |
| now_to_seconds(now()) | |
| . | |
| epoch_hires() -> | |
| now_to_seconds_hires(now()) | |
| . |