munhitsu

# docker-py / docker-compose installed through pip fails with
# SSL error: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:590)

# At the moment simplest solution is to use python 2.7.6 natively installed


$ brew uninstall python

# check follwoing commands if everything is ok

munhitsu

# remove all containers (only if they are not running)
docker rm $(docker ps -aq)

# remove all containers (even if they are running)
docker rm -f $(docker ps -aq)

# remove all containers and their persistent volumes
docker rm -fv $(docker ps -aq)

# remove all images from docker host

munhitsu

jq '.["@fields"]' ~/Downloads/app.errors

munhitsu

### Keybase proof

I hereby claim:

  * I am munhitsu on github.
  * I am munhitsu (https://keybase.io/munhitsu) on keybase.
  * I have a public key whose fingerprint is 7859 4A7B 4DEE 7711 75EA  99A4 D4FA D361 158F 52C3

To claim this, I am signing this object:

munhitsu

blkid -o value -s TYPE /dev/xvdh

munhitsu

resource "aws_db_instance" "api" {
    identifier = "api-${var.stack}"
    allocated_storage = 100
    engine = "postgres"
    engine_version = "9.3.6"
    instance_class = "db.m3.medium"
    storage_encrypted = true
    apply_immediately = false
    name = "${var.db_name}"
    username = "${var.db_master_username}"

munhitsu

kworker is accounts for all kernel threads so you will also see high system CPU usage

In my case I've had nearly filled up BTRFS partition, so kernel was constantly searching for space.

tracing kernel - raw
```
# echo l > /proc/sysrq-trigger
# dmesg
```

munhitsu

if ! [ -d venv ]; then
  pyvenv venv
fi
source venv/bin/activate

munhitsu

# recommended ntp pool (/etc/ntp.conf)
server 0.amazon.pool.ntp.org iburst
server 1.amazon.pool.ntp.org iburst
server 2.amazon.pool.ntp.org iburst
server 3.amazon.pool.ntp.org iburst

ntpq
> peers
check for connection prefixed with *
> as

munhitsu

#check logs

curl http://localhost:9200/_cluster/health?pretty
curl http://localhost:9200/_cat/indices?v
curl http://localhost:9200/_cat/nodes?v
curl http://localhost:9200/_cat/shards?v

curl localhost:9200/_nodes/process?pretty