I am a newbie in ELK and still learning it. I am planning to setup a watcher functionality.
Below is the watcher definition that i have written,
I have just followed the online document. However, I am not able to run this. It shows the below error
I followed similar post on this forum like : "reason": "Invalid index name [_watcher], must not start with '_'",
However, I could not able to crack the solution. I am looking forward to the suggestion on what is wrong here.