KavyaShivashankar

{
  "__inputs": [
    {
      "name": "DS_PROMETHEUS",
      "label": "prometheus",
      "description": "",
      "type": "datasource",
      "pluginId": "prometheus",
      "pluginName": "Prometheus"
    }

KavyaShivashankar

Create Self Signed Certificate using OpenSSL on a Mac

Introduction

Every now and then I need to create a self signed certificate in azure for something. In my particular case its Azure B2C. I am using a mac so its not simply just running something like

New-SelfSignedCertificate `
    -KeyExportPolicy Exportable `
    -Subject "CN=yourappname.yourtenant.onmicrosoft.com" `
 -KeyAlgorithm RSA `

KavyaShivashankar

#!/bin/bash

#WRKR1="10.0.0.ip4"
#WRKR2="10.0.0.ip1"
#WRKR3="10.0.0.ip2"
#WRKR4="10.0.0.ip3"

echo "Starting omb benchmark worker service on $WRKR1, $WRKR2, $WRKR3, $WRKR4"

ssh -i ~/.ssh/redpanda_aws ubuntu@${WRKR1} -t "sudo systemctl start benchmark-worker.service; journalctl -u benchmark-worker -n 10 --no-pager"

KavyaShivashankar

# Script to  plot a graph of redpanda publish latencies for ack in [ all, 0, 1] for different stretch cluster configurations 
#

import matplotlib.pyplot as plt

# line 1 points
x1 = ["p99pub.ack0", "p99pub.ack1", "p99pub.ackall"]
y1 = [1.176,2.305,3.75]
# plotting the line 1 points
plt.plot(x1, y1, label = "default")

KavyaShivashankar

# Generate summary from omb results json files 
# Super useful when you have too many files
for i in /Users/ks/omb_runs/result_all/*
do
  echo $i
  rm -rf ~/results/*
  cp $i ~/results/
  fname=`echo $i | cut -f6 -d"/" | rev | cut -f2- -d"." | rev`
  echo $fname
  python3 /Users/ks/rpd/github/openmessaging-benchmark/bin/generate_charts.py --results ~/results --output ~/output > ~/output/$fname.json

KavyaShivashankar

#!/bin/bash
#RPD_BROKERS="10.0.0.124 10.0.0.95 10.0.0.138"

BRKR1="10.0.0.ip1"
BRKR2="10.0.0.ip2"
BRKR3="10.0.0.ip3"

echo "Applying network delay of $1 to $BRKR1, $BRKR2, $BRKR3"

ssh -i ~/.ssh/redpanda_aws ubuntu@${BRKR1} -t "ping -c 4 ${BRKR2}; ping -c 4 ${BRKR3}"

KavyaShivashankar

echo "Removing network delay"

RPD_BROKERS="10.0.0.ip1 10.0.0.ip2 10.0.0.ip3"

for IP in $RPD_BROKERS;
do
   ssh -i ~/.ssh/redpanda_aws ubuntu@$IP -t "sudo tc qdisc del dev ens5 root; tc qdisc show  dev ens5"
done

KavyaShivashankar

#!/bin/bash

# Script to apply network delays on linux using tc.  This script applies n/w delays between specific instances
# For a more generic one (ie) to apply n/w delays to all traffic - inbound or outbound see line 18

BRKR1="10.0.0.ip1"
BRKR2="10.0.0.ip2"
BRKR3="10.0.0.ip3"

echo "Applying network delay of $1 to $BRKR1, $BRKR2, $BRKR3"