sudo sysctl -w vm.max_map_count=262144

ps aux | grep java

sudo service elasticsearch start

sudo vi /proc/sys/vm/max_map_count

ls -la /proc/sys/vm/ | grep max_map_count

$ su root

$ cat /proc/sys/vm/max_map_count
    65536

echo 262144 > /proc/sys/vm/max_map_count

cat /proc/sys/vm/max_map_count
    262144

vi /etc/rc.local

echo 220000000 > /proc/sys/vm/dirty_background_bytes
    echo 320000000 > /proc/sys/vm/dirty_bytes
    echo 0 > /proc/sys/vm/dirty_background_ratio
    echo 0 > /proc/sys/vm/dirty_ratio
    echo 500 > /proc/sys/vm/dirty_writeback_centisecs
    echo 4500 > /proc/sys/vm/dirty_expire_centisecs
    echo 1 > /proc/sys/net/ipv4/tcp_rfc1337
    echo 10 > /proc/sys/vm/swappiness
    echo never > /sys/kernel/mm/transparent_hugepage/enabled
    echo never > /sys/kernel/mm/transparent_hugepage/defrag
    echo 120 > /proc/sys/net/ipv4/tcp_keepalive_time
    echo 0 > /proc/sys/vm/zone_reclaim_mode
    echo deadline > /sys/block/sda/queue/scheduler
    echo 8 > /sys/class/block/sda/queue/read_ahead_kb
    echo 1048575 > /proc/sys/vm/max_map_count

vm.max_map_count=1048575
 vm.zone_reclaim_mode=0
 vm.dirty_background_bytes=220000000
 vm.dirty_background_ratio=0
 vm.dirty_bytes=320000000
 vm.dirty_ratio=0
 vm.swappiness=10

sudo sysctl -w vm.max_map_count=262144

echo 262144 | sudo tee /proc/sys/vm/max_map_count

user@naos:~$ cat /proc/sys/vm/max_map_count
   262144

sysctl -w vm.max_map_count=262144