curl -XPUT localhost:9200/_cluster/settings -d '{
    "persistent" : {
        "cluster.routing.allocation.disk.watermark.low" : 75%,
        "cluster.routing.allocation.disk.watermark.high" : 80%,
        "cluster.routing.allocation.cluster_concurrent_rebalance": 8,
        "cluster.routing.allocation.node_concurrent_recoveries": 8,
        "cluster.routing.allocation.awareness": "row",
        "cluster.indices.recovery.concurrent_streams": 4,
        "cluster.indices.recovery.max_bytes_per_sec": "40mb",
    }
}'