ECK Operator Disable Swap and mlockall:true

Hi @Fikrat_Karimli, thanks for your question.

Can you also provide logs from the Elasticsearch node? You can get them with kubectl logs prod-es-master-nodes-0. These logs should state what was the issue - it might not be related to ECK at all. You can take a look at a similar issue to see if it helps in your case.