I spent most of 12 hours indexing 70 million documents in Elasticsearch (1.4) on a single node installation, one server in Ubuntu 14.04 EC2 block. However, this completed successfully before taking a snapshot of my server. I thought it would be wise to rename the cluster so that it would not accidentally join production boxes in the future, that it was a mistake! After renaming in the elasticsearch.yml file and restarting the ES service, my indexes disappeared.
I saw that the data was still present in the data directory under the old cluster name, I tried to stop the ES by manually moving the data to the file system and then starting the ES service again, but still no luck. Then I tried to rename back to the previous name of the cluster, putting everything in place and still nothing. The data is still there, all 44 GB, but I have no idea how to get it back. I spent the last 2 hours of searching, and all I can find is advice on how to recover from a snapshot that I don’t have. Any advice would be greatly appreciated - I really hope I haven't lost my day job. I will never rename a cluster again!
Thanks in advance.
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