Hey,
how can I recover data that I lost while my Elasticsearch was down. see the screen below.
thank you.
You can recover data , only when that is stored in Elasticsearch , via Elasticsearch recovery methods...
What you are asking is out of scope for Elasticsearch.
You need to think from the Application point of view who is pushing the data. Have mechanism their to store data , if Elasticsearch is unavailable.
That application / queue has to re-push the data to Elasticsearch Cluster.
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I push the data with Filebeat, then the data is sent to Logstash and filtered for some requirements and then stored in Elasticsearch
Filebeat and Logstash should detect Elasticsearch is down and send when it's available.
Otherwise you can reprocess the source data files.
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