I'm using Elastic Stack 6.4.0 (did rolling upgrade from 6.3.2 recently) and after stop of entire elasticsearch cluster (master, data, coordinate and ingest nodes), I'm no longer able to start it; I'm getting following messages in logs:
timed out while waiting for initial discovery state - timeout: 30s
after downgrading Elastic Stack to 6.3.2 (and later rolling upgrade to 6.4.0) everything works as it expected, however starting with 6.4.0 cluster Elastic Stack, causing nodes not see each other...
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