one warm node is out just now, server was doing nothing. Both nodes (master and warm) are on the same server
master log: https://pastebin.pl/view/d18a3ec1
warm node log: https://pastebin.pl/view/ebc36c2e
threads: https://pastebin.pl/view/e74dab9d
log is now in DEBUG mode
settings still:
"cluster.routing.allocation.node_concurrent_incoming_recoveries" : "1",
"cluster.routing.allocation.node_concurrent_outgoing_recoveries" : "1",
"cluster.routing.allocation.node_concurrent_recoveries" : "2",
"cluster.routing.allocation.cluster_concurrent_rebalance" : "0",
"cluster.routing.allocation.node_initial_primaries_recoveries" : "4",
"indices.recovery.max_bytes_per_sec" : "20mb"
