I am an absolute beginner in elasticsearch and after some hours of reading and watching tutorial-videos I got the impression, that it needs a lot of knowledge and preparation, before I can make a fast search in certain data.
I understand that I need indices for the data in which I want to make fast searches.
I seems to me that it is a hard work to build these indices.
The data in which I can search with elasticsearch must be reachable over http(s). Is that correct?
The data in which I can search with elasticsearch must be located in a area where the data is which can be published/sent by the http-webserver. Is that correct?
Or is there a way to search in huge data amounts which are located in certain directories on my harddisk?
Can i search in arbitrary structured data (pdf files , xls-files, txt-files , doc-files, html-files, xml-files) or do i need the data in a certain structure like .csv-files
Thank you for helping me: