Where does fingerprint data information gets stored?

Sumo Logic uses a fingerprint mechanism to track the position of the last message ingested from a file. Sumo Logic identifies new files based on a fingerprint of a file which is actually based on the first 2K bytes of a file. The fingerprint needs to be unique with the file names.

This fingerprint gets stored under the path: <Sumo_home>/config/blades directory.

You will see the hexadecimal blade.json file that represents the unique source under the configured collector on the server that has this information stored.

For example:

Sample Blade.json:

{
 "blacklist": "",
 "blade.id": 137202106,
 "blade.name": "IIS_Logs",
 "blade.sourceCategory": "",
 "blade.sourceHostName": "",
 "blade.type": "LocalFile",
 "encoding": "UTF-8",
 "files": [{
  "completed": false,
  "fingerPrint": "0484047c4969c961a53c04347362aabd",
  "fpBytesUsed": 2048,
  "isInTraining": true,
  "name": "/Users/rahul/Downloads/44802/iis_logs.txt",
  "pointer": 30140,
  "trainedPrefix": ""
 }