Retrieve Deleted Log File from Hadoop with ElasticSearch

Elastic Stack Elasticsearch
1

Dear all gens,

I am doing the product evaluation about Elasticsearch with Hadoop.

I would like to know that if I stored some log files in HDFS. when somebody deleted, by external hacker or internal stupid guy.

Any capability can retrieve it and back to the original folder?

Please advise.

2

This has nothing to do with Elasticsearch. If somebody deletes content from HDFS you either need to use backup or potentially some type of recycle/thrash capability (though I'm not aware of any such type of functionality).

3

So only trash can do it? Then how to fully utilize the feature about Hadoop append mode file system?

4

Since this is a HDFS specific problem, it's best to take a look at the HDFS/your Hadoop distro documentation for more information.