🏡

Arunprasad Rajkumar arajkumar

🏡

arajkumar / pr-325-four-tables.html

Created May 22, 2026 10:58

	<!doctype html>
	<html lang="en">
	<head>
	<meta charset="utf-8" />
	<title>Tigerlake vs live-sync — starting with 4 tables</title>
	<style>
	:root {
	--bg: #0f1320;
	--panel: #161c2e;
	--panel-2: #1d2540;

arajkumar / commit_lsn_vs_end_lsn.html

Created May 22, 2026 10:53

	<!doctype html>
	<html lang="en">
	<head>
	<meta charset="utf-8" />
	<title>commitLSN vs endLSN in logical replication</title>
	<style>
	body { font: 14px/1.5 -apple-system, system-ui, sans-serif; max-width: 980px; margin: 32px auto; padding: 0 16px; color: #1e293b; }
	h1 { font-size: 22px; }
	h2 { font-size: 17px; margin-top: 32px; border-bottom: 1px solid #e2e8f0; padding-bottom: 4px; }
	code, pre { font-family: "SF Mono", Menlo, monospace; font-size: 13px; }

arajkumar / pq.c

Created February 26, 2024 18:05

pipeline benchmarking

	#include <stdio.h>
	#include <stdlib.h>
	#include <stdbool.h>
	#include <stdint.h>
	#include <libpq-fe.h>


	bool exit_pipe(PGconn *connection )
	{
	PGpipelineStatus status = PQpipelineStatus(connection);

arajkumar / auth_request.js

Created April 4, 2023 05:07

nginx config to validate client credentials

	// /etc/nginx/njs/stream/auth_request.js

	async function authValidate(r) {
	const basicAuth = r.headersIn['Authorization'];
	if (!basicAuth.toLowerCase().startsWith("basic")) {
	r.error("Only BasicAuth is supported");
	r.return(401);
	return;
	}
	const basicAuthDecoded = atob(basicAuth.replace(/Basic/gi, "").trim());

arajkumar / debug.yaml

Last active November 30, 2022 06:17

arajkumar / ingest-with-prometheus-values-overrides.yaml.yaml

Created November 23, 2022 14:53

Benchmark config

	# Apply your stack customization here. This file is not tracked by git.

	# If you want to make persistent changes to this file you can do so by using
	# `git update-index --no-assume-unchanged values-overrides.yaml` command,
	# commiting changes, and then disabling file tracking by running
	# `git update-index --assume-unchanged values-overrides.yaml` command.

	prometheus:
	# Configuration options in https://github.com/prometheus-operator/prometheus-operator/blob/main/Documentation/api.md#monitoring.coreos.com/v1.RemoteWriteSpec
	remoteWrite:

arajkumar / dashboard.yaml

Created September 12, 2022 10:10

promscale jaeger grpc write perf

arajkumar / ocp-uwm.yaml

Created March 23, 2022 07:53

OCP UWM Monitoring with example app

	apiVersion: v1
	kind: ConfigMap
	metadata:
	name: cluster-monitoring-config
	namespace: openshift-monitoring
	data:
	config.yaml: \|
	enableUserWorkload: true
	---
	apiVersion: v1

arajkumar / avalanche.yaml

Created February 25, 2022 10:35

avalanche.yaml

	apiVersion: v1
	kind: ConfigMap
	metadata:
	name: cluster-monitoring-config
	namespace: openshift-monitoring
	data:
	config.yaml: \|
	enableUserWorkload: true
	prometheusK8s:

arajkumar / get-fmb.sh

Last active February 23, 2022 12:07

FMB Sketch

	SURVEY_NUM=$1
	curl 'https://collabland-tn.gov.in/rest/Collabland/FMBMapServicePDF' \
	--data-raw "state=33&giscode=S1204004${SURVEY_NUM}&plotno=&scale=0&width=500&height=500" \
	--compressed \| jq -r '.success' \| base64 -D > $PWD/FMB-${SURVEY_NUM}.pdf