niccottrell

/* 
MIT License

Copyright (c) 2017 Martin Buberl

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is

niccottrell

#
# tuned configuration optimized for MongoDB on AWS (or other cloud services)
# based on the 'virtual-guest' tuned profile
# tested on RHEL7
#

[main]
summary=Optimize for MongoDB wiredTiger Performance 
include=virtual-guest

niccottrell

/**
*
* This script is to experiment with a compound shard key.
*
* Goals:
*  1. the hash (h) to always be the same for the same date (down to the day level)
*  2. documents with the same exact date (dMy) go on the same shard but different day to different shards
*  3. will work well with 100m+ documents
*  4. small overhead related to a simple (non-compound) date shard key
*  5. still support targeted queries (as long as "h" field is included in the query by the application)

niccottrell

import com.github.scribejava.core.builder.ServiceBuilder;
import com.github.scribejava.core.builder.api.DefaultApi20;
import com.github.scribejava.core.model.*;
import com.github.scribejava.core.oauth.OAuth20Service;
import org.jetbrains.annotations.Nullable;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;

niccottrell

// Inline Labels
// -------------------------------------------------- //

$('input, textarea').each(function() {

    // load the corresponding label
    var $self = $(this);
        var $label = $("label[for='" + $self.attr("id") + "']").
        
    if ($label.text(); {

niccottrell

systemLog:
   destination: file
   path: "/var/log/mongo/mongo-arb.log"
   logAppend: true
storage:
  dbPath: "/var/lib/mongo-arb"
processManagement:
   fork: true
   pidFilePath: "/var/run/mongo/mongod-arb.pid"
net:

niccottrell

# After etckeeper installation

/etc/etckeeper/etckeeper.conf  VCS="git"

etckeeper init && etckeeper commit

# ------
git config --global user.name "My Machine"
git config --global user.email "etckeeper@my.machine"

niccottrell

// derived from http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance#Parallel_algorithm

function map() {
    emit(1, // Or put a GROUP BY key here
         {sum: this.value, // the field you want stats for
          min: this.value,
          max: this.value,
          count:1,
          diff: 0, // M2,n:  sum((val-mean)^2)
    });