Started with this prompt

act as an application and infracture monitoring platform synthetic data generator. All you responses need to be in a valid JSON format.
Generate CPU performance metrics for 5 servers over last 24 hours

The result was actually OK

However, it provided the samples grouped by a server, which is the opposite of what I wanted. I wanted to see a timestamp of the sample and then the samples from all the servers.

Prompt #2

rearrange it so that it will be grouped by timestamp first and the server

It worked!

But I’ve noticed that in both times it gave me only measurements over the first 5 hours.

So here goes prompt #3

recreate it to have at least 24 unique timestamps

And voila. It works! I was able to use ChatGPT to generate sample monitoring data in 2 minutes (it would have been quicker, but I had to click “continue generating” a few times as I think it was reaching the limit of the token size.)

Let’s see, what if I want also to have some samples for Memory utilisation, prompt #4

repeat the same for memory metrics

Good ChatGPT!

Now l want to combine both (CPU and Memory) metrics to appear together. Prompt # (aaa forgot what number it is, probably I’ve reached my own token limit )

combine both CPU and Memory metrics 

Amazing!!!!

More posts related to my AI journey:

The post Use ChatGPT to generate sample monitoring data appeared first on ISbyR.

Monitors Configuration

In order to understand the Heartbeat TCP  monitor time metrics I’ve set up the following monitors:

• tcp_simple – establishes connection with test.smtp.org on port 25.
• tcp_check_resolve – verifies receiving a 220 response from the same server after connecting

You can see the extract from the heartbeat.yml configuration file relevant to these TCP monitors

- type: tcp
  name: tcp_simple
  schedule: '@every 60s'
  hosts: ["test.smtp.org:25"]

- type: tcp
  name: tcp_check_resolve
  schedule: '@every 60s'
  hosts: ["test.smtp.org:25"]
  check.receive: "220 test.smtp.org ESMTP Sendmail 8.16.0.16 ready"

The data returned by the monitors

After letting it run for a while  let’s check what data Heartbeat is sending to Elasticsearch

For the tcp_simple monitor

{
  "@timestamp": "2018-03-18T19:28:23.336Z",
  "beat": {
    "hostname": "DESKTOP-9LR2P8D",
    "name": "DESKTOP-9LR2P8D",
    "version": "5.6.1"
  },
  "duration": {
    "us": 937865
  },
  "host": "test.smtp.org",
  "ip": "52.2.168.164",
  "monitor": "tcp_simple-plain@test.smtp.org:25",
  "port": "25",
  "resolve_rtt": {
    "us": 654323
  },
  "scheme": "tcp",
  "tcp_connect_rtt": {
    "us": 282543
  },
  "type": "tcp_simple",
  "up": true
}

For the tcp_check_resolve monitor

{
  "@timestamp": "2018-03-18T19:28:23.336Z",
  "beat": {
    "hostname": "DESKTOP-9LR2P8D",
    "name": "DESKTOP-9LR2P8D",
    "version": "5.6.1"
  },
  "duration": {
    "us": 6892437
  },
  "host": "test.smtp.org",
  "ip": "52.2.168.164",
  "monitor": "tcp_check_resolve-plain@test.smtp.org:25",
  "port": "25",
  "resolve_rtt": {
    "us": 654323
  },
  "scheme": "tcp",
  "tcp_connect_rtt": {
    "us": 283541
  },
  "type": "tcp_check_resolve",
  "up": true,
  "validate_rtt": {
    "us": 5954572
  }
}

Time Metrics

The tcp_simple monitor has only 3 time metrics – duration, resolve_rtt and tcp_connect_rtt. While the more “complex” tcp_check_resolve monitor has an additional validate_rtt. The first 3 metrics description will be almost the same as for the ICMP Monitor metrics while the validate_rtt is “new” to us.

• duration – Total monitoring test duration
• resolve_rtt – Duration required to resolve an IP from hostname.
• tcp_connect_rtt – Duration required to establish a TCP connection based on already available IP address.
• validate_rtt –  Duration of validation step based on existing TCP connection.

Visualisation

TBC

The post Understanding Elastic Heartbeat time metrics – TCP appeared first on ISbyR.

• Part 1 – Elasticsearch Heartbeat ICMP time metrics
• Part 2 – Elasticsearch Heartbeat TCP time metrics (work in progress)
• Part 3 – Elasticsearch Heartbeat HTTP time metrics (work in progress)

Monitors Configuration In order to understand the  Heartbeat ICMP monitor time metrics I’ve set up a simple monitor, that “pings” localhost and 127.0.0.1. You might say: “Wait a second, aren’t these that same?”,  but you will see the reason why I set it up this way soon. You can see the extract from the heartbeat.yml configuration file relevant to the ICMP monitor

- type: icmp

  # List or urls to query
  hosts: ["localhost", "127.0.0.1"]

  # Configure task schedule
  schedule: '@every 60s'

  # Configure IP protocol types to ping on if hostnames are configured.
  # Ping all resolvable IPs if `mode` is `all`, or only one IP if `mode` is `any`.
  ipv4: true
  ipv6: false
  mode: all

  # Total running time per ping test.
  timeout: 16s

  # Waiting duration until another ICMP Echo Request is emitted.
  wait: 1s

The data returned by the monitors After letting it run for a while  let’s check what data Heartbeat is sending to Elasticsearch For the  127.0.0.1 monitor

{
  "@timestamp": "2017-10-17T05:36:25.687Z",
  "beat": {
    "hostname": "DESKTOP-123456",
    "name": "DESKTOP-123456",
    "version": "5.6.1"
  },
  "duration": {
    "us": 0
  },
  "icmp_rtt": {
    "us": 0
  },
  "ip": "127.0.0.1",
  "monitor": "icmp-ip@127.0.0.1",
  "type": "icmp",
  "up": true
}

For the localhost monitor

{
  "@timestamp": "2017-10-17T05:36:25.687Z",
  "beat": {
    "hostname": "DESKTOP-123456",
    "name": "DESKTOP-123456",
    "version": "5.6.1"
  },
  "duration": {
    "us": 1007
  },
  "host": "localhost",
  "icmp_rtt": {
    "us": 501
  },
  "ip": "127.0.0.1",
  "monitor": "icmp-host-ip4@localhost",
  "resolve_rtt": {
    "us": 506
  },
  "type": "icmp",
  "up": true
}

Time metrics We can see that there are only 3 values that have are measured “us” (which suggest that these are time metrics)

• duration
• resolve_rtt
• icmp_rtt

After going through some Elasticsearch Heartbeat docos that’s what I came up with:

duration – Total monitoring test duration

As I understand, it includes the time that Heartbeat actually reads the the monitor definition, executes it  and has the final results

resolve_rtt – Duration required to resolve an IP from hostname

Since the first thing that Heartbeat needs to do is to understand which IP you want it to “ping” it tries to translate the hostname you’ve provided to a valid IP. By the way, if you are to provide an IP in the monitor settings, this step will not be require and the metric will exist no more.

icmp_rtt – ICMP Echo Request and Reply round trip time

The actual round trip time of the monitor. The timing starts the moment the client sent the request, and ends when it receives a reply from the server, so basically it includes network time (in each direction) + server time.

Visualization

As a bonus for those who have read it so for here are some nice shiny Kibana graphs to visualize the Heartbeat ICMP monitor duration metrics

 As you can see  in the first graph we didn’t have the resolve_rtt metric since we were “pinging” a known IP, while in the second graph it appears since Heartbeat ICMP monitor needs to resolve the “localhost” to an IP.

The post Understanding Elastic Heartbeat time metrics – ICMP appeared first on ISbyR.