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Yuri Khrustalev ykhrustalev

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  • GTA, Canada
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@sritchie
sritchie / WholeFile.java
Created February 2, 2011 17:32
Hadoop input format for swallowing entire files.
package forma;
import forma.WholeFileInputFormat;
import cascading.scheme.Scheme;
import cascading.tap.Tap;
import cascading.tuple.Fields;
import cascading.tuple.Tuple;
import cascading.tuple.TupleEntry;
import java.io.IOException;
import org.apache.hadoop.mapred.JobConf;
@jpantuso
jpantuso / osx_lion_rail_setup.md
Created July 27, 2011 19:51
Setup OS X 10.7 w/ homebrew, oh-my-zsh, rvm, rails, and MySQL
@enjalot
enjalot / index.html
Created November 18, 2011 23:56
d3 behavior.drag example
<!DOCTYPE html>
<html>
<head>
<title>Chernoff Smileys</title>
<script type="text/javascript" src="http://mbostock.github.com/d3/d3.js?2.5.0"></script>
<script type="text/javascript" src="http://mbostock.github.com/d3/d3.layout.js?2.5.0"></script>
<style type="text/css">
</style>
</head>
@bhenerey
bhenerey / ideal ops.md
Created May 23, 2012 19:40
ideal ops checklist

In a perfect world, where things are done well, not just quickly, I would expect to find the following when joining the company:

Documentation

  • Accurate / up-to-date systems architecture diagram

  • Accurate / up-to-date network diagram

  • Out-of-hours support plan

  • Incident management plan

@rgreenjr
rgreenjr / postgres_queries_and_commands.sql
Last active July 31, 2024 12:52
Useful PostgreSQL Queries and Commands
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;
-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'
@dvarrazzo
dvarrazzo / prepare.py
Created September 28, 2012 01:19
An example of psycopg2 cursor supporting prepared statements
#!/usr/bin/env python
"""An example of cursor dealing with prepared statements.
A cursor can be used as a regular one, but has also a prepare() statement. If
prepare() is called, execute() and executemany() can be used without query: in
this case the parameters are passed to the prepared statement. The functions
also execute the prepared statement if the query is the same prepared before.
Prepared statements aren't automatically deallocated when the cursor is
deleted, but are when the cursor is closed. For long-running sessions creating
@ykhrustalev
ykhrustalev / gist:3899173
Created October 16, 2012 13:09
flush iptables
#!/bin/sh
echo "Flushing iptables rules..."
sleep 1
iptables -F
iptables -X
iptables -t nat -F
iptables -t nat -X
iptables -t mangle -F
iptables -t mangle -X
iptables -P INPUT ACCEPT
@louiszuckerman
louiszuckerman / gfid-resolver.sh
Last active November 29, 2023 10:01
Glusterfs GFID Resolver Turns a GFID into a real path in the brick
#!/bin/bash
if [[ "$#" < "2" || "$#" > "3" ]]; then
cat <<END
Glusterfs GFID resolver -- turns a GFID into a real file path
Usage: $0 <brick-path> <gfid> [-q]
<brick-path> : the path to your glusterfs brick (required)
@mdub
mdub / syslog-injection.sh
Created May 1, 2013 01:25
Redirect STDOUT and STDERR into syslog, using "logger", and bash process substitution
# Redirect STDOUT/STDERR into syslog
exec > >(logger -p user.info) 2> >(logger -p user.warn)
@RobThree
RobThree / ratelimiter.php
Last active December 16, 2019 21:34
Simple, rude, rate limiter (using memcache).
<?php
/* Very simple, crude, rate limiter */
/*
Assumes _MEMCACHEDSITEPREFIX, _MEMCACHEDHOST and _MEMCACHEDPORT are `defined`:
define('_MEMCACHEDHOST', '127.0.0.1');
define('_MEMCACHEDPORT', 11211);
define('_MEMCACHEDSITEPREFIX', 'mysite');
*/