michaeljfazio

#!/bin/bash
#
# Author: Michael Fazio (sandstone.io)
#
# This script monitors a Jormungandr node for "liveness" and executes a shutdown if the node is determined
# to be "stuck". A node is "stuck" if the time elapsed since last block exceeds the sync tolerance 
# threshold. The script does NOT perform a restart on the Jormungandr node. Instead we rely on process 
# managers such as systemd to perform restarts.

POLLING_INTERVAL_SECONDS=30

michaeljfazio

[
  {
    "address": "/ip4/13.56.0.226/tcp/3000",
    "id": "7ddf203c86a012e8863ef19d96aabba23d2445c492d86267"
  },
  {
    "address": "/ip4/54.183.149.167/tcp/3000",
    "id": "df02383863ae5e14fea5d51a092585da34e689a73f704613"
  },
  {

michaeljfazio

- address: "/ip4/54.85.152.129/tcp/3000"
  id: "000000000000000000000000000000000000000000000010"
- address: "/ip4/89.162.97.131/tcp/9003"
  id: "000000000000000000000000000000000000001313139003"
- address: "/ip4/89.162.97.131/tcp/9004"
  id: "000000000000000000000000000000000000001313139004"
- address: "/ip4/89.162.89.137/tcp/9005"
  id: "000000000000000000000000000000000000001313139005"
- address: "/ip4/89.162.89.137/tcp/9006"
  id: "000000000000000000000000000000000000001313139006"

michaeljfazio

#!/bin/bash

function extract()
{
    while read line
    do
	arr=( $(echo $line | tr ';' ' ') )
	addr=${arr[15]::-1}
	ip=$(echo $addr | cut -d: -f1)
	port=$(echo $addr | cut -d: -f2)

michaeljfazio

AWSTemplateFormatVersion: 2010-09-09

Parameters:
  Environment:
    Type: String
    Default: Production
    Description: The name of the enviornment this cluster is being deployed to.
  EmrVersion:
    Type: String
    Default: emr-5.29.0