davisford

kubectl get pods | grep Evicted | awk '{print $1}' | xargs kubectl delete pod

davisford

Useful Links

• Slides: Lesser known features in Cypher - Alex Price

• Cypher Query Tuning - Michael

• Cypher Query Tuning - Mark & Petra

davisford

import Foundation

/// Parse RFC 3339 date string to NSDate
///
/// :param: rfc3339DateTimeString string with format "yyyy-MM-ddTHH:mm:ssZ"
/// :returns: NSDate, or nil if string cannot be parsed
public func dateForRFC3339DateTimeString(rfc3339DateTimeString: String) -> NSDate? {
    let formatter = getThreadLocalRFC3339DateFormatter()
    return formatter.dateFromString(rfc3339DateTimeString)
}

davisford

FYI: I install ginkgo into $HOME/gocode. My .bash_profile does this:

export GOPATH=$HOME/gocode
export PATH=$PATH:$GOPATH/bin

And I do a custom GOPATH per project. I don't like global GOPATH for all projects. So on projectx, I have to cd projectx && export GOPATH=$(pwd):$GOPATH for example. It is a minor inconvenience, but I think it is cleaner.

This means, I want to install binaries like ginkgo into my global GOPATH and not necessarily my project path. Hope that makes sense.

davisford

docker run -it --rm -p 4222:4222 -p 6222:6222 -p 8222:8222 --name nats-main nats

docker run -it --rm --name=nats-2 --link nats-main nats --cluster=nats://0.0.0.0:6222 --routes=nats-route://ruser:T0pS3cr3t@nats-main:6222

docker run -it --rm --name=nats-3 --link nats-main nats --cluster=nats://0.0.0.0:6222 --routes=nats-route://ruser:T0pS3cr3t@nats-main:6222

You now have a 3-node nats cluster.  See http://localhost:8222/

davisford

Add the `replication` section to the mongod.conf file:

```
$cat /usr/local/etc/mongod.conf
systemLog:
  destination: file
  path: /usr/local/var/log/mongodb/mongo.log
  logAppend: true
storage:
  engine: mmapv1

davisford

// super quick hack to test mongodb replica set.  once the replica set is running 
// attemtp rs.stepDown() or just kill the primary and observe the behavior.
package main

import (
	"fmt"
	mgo "gopkg.in/mgo.v2"
	"time"
)

davisford

"use strict";

/*\
|*|
|*|  :: Number.isInteger() polyfill ::
|*|
|*|  https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isInteger
|*|
\*/

davisford

#!/bin/sh
if (( $# != 2))
then 
  echo "Usage: md2pdf.sh <input.md> <output.pdf>"
  exit 1
fi
markdown $1 | htmldoc --cont --headfootsize 8.0 --linkcolor blue --linkstyle plain --format pdf14 - > $2

davisford

WITH table_scans as (
    SELECT relid,
        tables.idx_scan + tables.seq_scan as all_scans,
        ( tables.n_tup_ins + tables.n_tup_upd + tables.n_tup_del ) as writes,
                pg_relation_size(relid) as table_size
        FROM pg_stat_user_tables as tables
),
all_writes as (
    SELECT sum(writes) as total_writes
    FROM table_scans