Here is my enviroments:
* centos-7-x86_64
* 4 core / 8 G
* openjdk-11.0.4
here is the es log.
2019.09.03 00:59:34 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x35cc669c, L:/127.0.0.1:9001 - R:/127.0.0.1:49640] FLUSH
2019.09.03 00:59:34 TRACE es[][o.e.i.b.in_flight_requests] [in_flight_requests] Adjusted breaker by [-16440] bytes, now [63]
2019.09.03 00:59:34 TRACE es[][o.e.t.T.tracer] [4][internal:transport/handshake] sent response
2019.09.03 00:59:34 TRACE es[][o.e.i.b.in_flight_requests] [in_flight_requests] Adjusted breaker by [-63] bytes, now [0]
2019.09.03 00:59:34 TRACE es[][o.e.i.b.in_flight_requests] [in_flight_requests] Adjusted breaker by [-16440] bytes, now [63]
2019.09.03 00:59:34 TRACE es[][o.e.t.T.tracer] [6][internal:tcp/handshake] sent response
2019.09.03 00:59:34 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xc9222774, L:/127.0.0.1:9001 - R:/127.0.0.1:49662] READ: 71B
+-------------------------------------------------+
| 0 1 2 3 4 5 6 7 8 9 a b c d e f |
+--------+-------------------------------------------------+----------------+
|00000000| 45 53 00 00 00 41 00 00 00 00 00 00 00 07 00 00 |ES...A..........|
|00000010| 5c c6 63 00 00 01 10 74 72 61 6e 73 70 6f 72 74 |\.c....transport|
|00000020| 5f 63 6c 69 65 6e 74 1e 63 6c 75 73 74 65 72 3a |_client.cluster:|
|00000030| 6d 6f 6e 69 74 6f 72 2f 6e 6f 64 65 73 2f 6c 69 |monitor/nodes/li|
|00000040| 76 65 6e 65 73 73 00 |veness. |
+--------+-------------------------------------------------+----------------+
2019.09.03 00:59:34 TRACE es[][o.e.t.TransportLogger] Netty4TcpChannel{localAddress=/127.0.0.1:9001, remoteAddress=/127.0.0.1:49662} [length: 71, request id: 7, type: request, version: 6.8.0, action: cluster:monitor/nodes/liveness] READ: 71B
2019.09.03 00:59:34 TRACE es[][o.e.i.b.in_flight_requests] [in_flight_requests] Adjusted breaker by [65] bytes, now [65]
2019.09.03 00:59:34 TRACE es[][o.e.t.TaskManager] register 11 [netty] [cluster:monitor/nodes/liveness] []
2019.09.03 00:59:34 TRACE es[][o.e.t.TaskManager] unregister task for id: 11
2019.09.03 00:59:34 TRACE es[][o.e.i.b.in_flight_requests] [in_flight_requests] Adjusted breaker by [16440] bytes, now [16505]
2019.09.03 00:59:34 TRACE es[][o.e.t.TransportLogger] Netty4TcpChannel{localAddress=/127.0.0.1:9001, remoteAddress=/127.0.0.1:49662} [length: 154, request id: 7, type: response, version: 6.8.0] WRITE: 154B
2019.09.03 00:59:34 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xc9222774, L:/127.0.0.1:9001 - R:/127.0.0.1:49662] WRITE: 154B
+-------------------------------------------------+
| 0 1 2 3 4 5 6 7 8 9 a b c d e f |
+--------+-------------------------------------------------+----------------+
|00000000| 45 53 00 00 00 94 00 00 00 00 00 00 00 07 01 00 |ES..............|
|00000010| 5c c6 63 00 00 09 73 6f 6e 61 72 71 75 62 65 01 |\.c...sonarqube.|
|00000020| 09 73 6f 6e 61 72 71 75 62 65 16 30 57 6e 64 6b |.sonarqube.0Wndk|
|00000030| 31 69 75 54 50 47 69 6b 53 7a 4e 52 55 78 45 31 |1iuTPGikSzNRUxE1|
|00000040| 41 16 47 6b 30 62 61 6b 32 4e 54 71 2d 49 50 43 |A.Gk0bak2NTq-IPC|
|00000050| 50 59 41 54 59 62 57 77 09 31 32 37 2e 30 2e 30 |PYATYbWw.127.0.0|
|00000060| 2e 31 09 31 32 37 2e 30 2e 30 2e 31 04 7f 00 00 |.1.127.0.0.1....|
|00000070| 01 09 31 32 37 2e 30 2e 30 2e 31 00 00 23 29 01 |..127.0.0.1..#).|
|00000080| 07 72 61 63 6b 5f 69 64 09 73 6f 6e 61 72 71 75 |.rack_id.sonarqu|
|00000090| 62 65 03 00 01 02 e3 8c f3 02 |be........ |
+--------+-------------------------------------------------+----------------+
2019.09.03 00:59:34 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xc9222774, L:/127.0.0.1:9001 - R:/127.0.0.1:49662] FLUSH
2019.09.03 00:59:34 TRACE es[][o.e.i.b.in_flight_requests] [in_flight_requests] Adjusted breaker by [-16440] bytes, now [65]
2019.09.03 00:59:34 TRACE es[][o.e.i.b.in_flight_requests] [in_flight_requests] Adjusted breaker by [-65] bytes, now [0]
2019.09.03 00:59:34 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xc9222774, L:/127.0.0.1:9001 ! R:/127.0.0.1:49662] INACTIVE
2019.09.03 00:59:34 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xc9222774, L:/127.0.0.1:9001 ! R:/127.0.0.1:49662] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x66805adf, L:/127.0.0.1:9001 ! R:/127.0.0.1:49636] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xda81932f, L:/127.0.0.1:9001 ! R:/127.0.0.1:49642] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xda81932f, L:/127.0.0.1:9001 ! R:/127.0.0.1:49642] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xb2b2d59d, L:/127.0.0.1:9001 ! R:/127.0.0.1:49658] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xb2b2d59d, L:/127.0.0.1:9001 ! R:/127.0.0.1:49658] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xa5b40d0c, L:/127.0.0.1:9001 ! R:/127.0.0.1:49648] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xa5b40d0c, L:/127.0.0.1:9001 ! R:/127.0.0.1:49648] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x35cc669c, L:/127.0.0.1:9001 ! R:/127.0.0.1:49640] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x7a0345c3, L:/127.0.0.1:9001 ! R:/127.0.0.1:49660] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x35cc669c, L:/127.0.0.1:9001 ! R:/127.0.0.1:49640] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x05095f13, L:/127.0.0.1:9001 ! R:/127.0.0.1:49656] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x05095f13, L:/127.0.0.1:9001 ! R:/127.0.0.1:49656] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xcf784805, L:/127.0.0.1:9001 ! R:/127.0.0.1:49646] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xcf784805, L:/127.0.0.1:9001 ! R:/127.0.0.1:49646] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x7734a0d9, L:/127.0.0.1:9001 ! R:/127.0.0.1:49638] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x7734a0d9, L:/127.0.0.1:9001 ! R:/127.0.0.1:49638] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x25c152fc, L:/127.0.0.1:9001 ! R:/127.0.0.1:49654] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x25c152fc, L:/127.0.0.1:9001 ! R:/127.0.0.1:49654] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x7a0345c3, L:/127.0.0.1:9001 ! R:/127.0.0.1:49660] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xbbd5934b, L:/127.0.0.1:9001 ! R:/127.0.0.1:49644] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xbbd5934b, L:/127.0.0.1:9001 ! R:/127.0.0.1:49644] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x0176e3cb, L:/127.0.0.1:9001 ! R:/127.0.0.1:49650] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x0176e3cb, L:/127.0.0.1:9001 ! R:/127.0.0.1:49650] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x66805adf, L:/127.0.0.1:9001 ! R:/127.0.0.1:49636] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x77786d64, L:/127.0.0.1:9001 ! R:/127.0.0.1:49652] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x77786d64, L:/127.0.0.1:9001 ! R:/127.0.0.1:49652] UNREGISTERED
2019.09.03 00:59:35 INFO es[][o.e.n.Node] stopping ...
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x0b60886d, L:/127.0.0.1:9001 - R:/127.0.0.1:49618] CLOSE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x61480844, L:/127.0.0.1:9001 - R:/127.0.0.1:49612] CLOSE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x2d09637c, L:/127.0.0.1:9001 - R:/127.0.0.1:49626] CLOSE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xf9b12fe7, L:/127.0.0.1:9001 - R:/127.0.0.1:49628] CLOSE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x61480844, L:/127.0.0.1:9001 ! R:/127.0.0.1:49612] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x61480844, L:/127.0.0.1:9001 ! R:/127.0.0.1:49612] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xf9b12fe7, L:/127.0.0.1:9001 ! R:/127.0.0.1:49628] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xf9b12fe7, L:/127.0.0.1:9001 ! R:/127.0.0.1:49628] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x484523b1, L:/127.0.0.1:9001 - R:/127.0.0.1:49622] CLOSE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x7b94a1a3, L:/127.0.0.1:9001 - R:/127.0.0.1:49624] CLOSE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x9afd7306, L:/127.0.0.1:9001 - R:/127.0.0.1:49606] CLOSE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xa3969479, L:/127.0.0.1:9001 - R:/127.0.0.1:49608] CLOSE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x484523b1, L:/127.0.0.1:9001 ! R:/127.0.0.1:49622] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x484523b1, L:/127.0.0.1:9001 ! R:/127.0.0.1:49622] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x9afd7306, L:/127.0.0.1:9001 ! R:/127.0.0.1:49606] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x9afd7306, L:/127.0.0.1:9001 ! R:/127.0.0.1:49606] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x0b60886d, L:/127.0.0.1:9001 ! R:/127.0.0.1:49618] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x0b60886d, L:/127.0.0.1:9001 ! R:/127.0.0.1:49618] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xd25ad1d6, L:/127.0.0.1:9001 - R:/127.0.0.1:49620] CLOSE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x18c8a2a1, L:/127.0.0.1:9001 - R:/127.0.0.1:49614] CLOSE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xab0be6f8, L:/127.0.0.1:9001 - R:/127.0.0.1:49604] CLOSE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x18c8a2a1, L:/127.0.0.1:9001 ! R:/127.0.0.1:49614] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xd25ad1d6, L:/127.0.0.1:9001 ! R:/127.0.0.1:49620] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xd25ad1d6, L:/127.0.0.1:9001 ! R:/127.0.0.1:49620] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xab0be6f8, L:/127.0.0.1:9001 ! R:/127.0.0.1:49604] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xab0be6f8, L:/127.0.0.1:9001 ! R:/127.0.0.1:49604] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xfe93ab01, L:/127.0.0.1:9001 - R:/127.0.0.1:49610] CLOSE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x2d09637c, L:/127.0.0.1:9001 ! R:/127.0.0.1:49626] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x2d09637c, L:/127.0.0.1:9001 ! R:/127.0.0.1:49626] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xfe93ab01, L:/127.0.0.1:9001 ! R:/127.0.0.1:49610] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xfe93ab01, L:/127.0.0.1:9001 ! R:/127.0.0.1:49610] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x84ed044c, L:/127.0.0.1:9001 - R:/127.0.0.1:49616] CLOSE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x84ed044c, L:/127.0.0.1:9001 ! R:/127.0.0.1:49616] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x84ed044c, L:/127.0.0.1:9001 ! R:/127.0.0.1:49616] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x18c8a2a1, L:/127.0.0.1:9001 ! R:/127.0.0.1:49614] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x7b94a1a3, L:/127.0.0.1:9001 ! R:/127.0.0.1:49624] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0x7b94a1a3, L:/127.0.0.1:9001 ! R:/127.0.0.1:49624] UNREGISTERED
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xa3969479, L:/127.0.0.1:9001 ! R:/127.0.0.1:49608] INACTIVE
2019.09.03 00:59:35 TRACE es[][o.e.t.n.ESLoggingHandler] [id: 0xa3969479, L:/127.0.0.1:9001 ! R:/127.0.0.1:49608] UNREGISTERED
2019.09.03 00:59:35 INFO es[][o.e.n.Node] stopped
2019.09.03 00:59:35 INFO es[][o.e.n.Node] closing ...
2019.09.03 00:59:35 TRACE es[][o.e.n.Node] Close times for each service:
StopWatch 'node_close': running time = 0s
-----------------------------------------
ms % Task name
-----------------------------------------