SLI Resampling Configuration

Products

• DX Operational Intelligence
• DX Operational Observability

Issue/Introduction

Your DX O2 Services are showing with "Unknown" Health status, the Services are based on UIM data and probes has been configured with a 10 minutes internal.

The reason of this issue in related to defect SLI Sum Operation is Operating on the Wrong Dataset DX O2 only support 5 and 15 minutes interval data processing.

Starting with 24.2HOTFIX 4, a new configuration capability has been introduced to adjust all the metrics that are received at a 10-minute interval to a 5-minute interval,  Previously, metrics arriving at a 10-minute interval were aligned to a 15-minute interval. This configuration is global and will be applicable to all the metrics that will received at a 10-minute interval.  This ensures consistent and accurate aggregation by the SLI sum function, eliminating over-counting and ensuring compliance with NASS metrics service standards.

This KB covers step by step instructions how to apply a resamping configuration required to enable fix availabe with HF#4

Environment

DX O2 24.*

Resolution

Table of Contents

• Pre-requisite:
• 1. Save Configuration
• 2. Query Configuration: 

Pre-requisite:

Collect the internal token for authentication:

Steps to get internal Token.

Step-1:
Go to the Kubernetes terminal and run the below command
kubectl get pod| grep -i servicemanagement

Step-2:
Go to inside the pod using a below kubernate command.
kubectl exec -it <Name of service management pod> -- bash

Step-3:
Now run the below command to get the internal token.
cat /apmservices.sec/bootstrap.properties | grep apm.security.internalToken | sed 's/apm.security.internalToken=//g'

1. Update the Configuration

Endpoint:
POST <apmservices-gateway>/configuration/store
Authentication: This endpoint requires a valid internal token for authentication. This token should be included in the request headers as:
Authorization: Bearer <internal_token>

Description:
This endpoint stores a resampling configuration with a global setting. It defines the 10-minute resampling process to 5 minutes, which operates with a internal token.

Request Payload:

{
 "key": "apm.nass.processing",
 "value": {
   "store": [
    {
      "id": "10MinResample",
      "type": "resample",
      "filter": {
      "interval": ["10m"],
      "type": "1"
    },
    "parameters": {
      "target_interval": "5m"
     }
    }
   ]
 }
}

 

Response:
   Status Code: 200 OK

 

2. Validate the change: 

Users can use this API to validate whether the configuration is saved or not

Endpoint:
POST <apmservices-gateway>/configuration/query
Authentication: This endpoint requires a valid internal token for authentication. This token should be included in the request headers as:
Authorization: Bearer <internal_token>

Description:
This endpoint queries the configuration based on specific filtering criteria. It’s used to fetch the stored resampling configuration

{
 "filter": {
   "op": "OR",
   "input": [
   {
     "op": "EXACT",
     "keys": [
       "apm.nass.processing"
     ]
    }
   ]
 }
}

Response:
   Status Code: 200 OK

Additional Information

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