Here are some logs of my test with just 9 nodes.
pi@raspberrypi:~ node-red-log**
**pi@raspberrypi:~ node-red-log
25 Jul 07:27:05 - [info] Node-RED version: v1.1.0
25 Jul 07:27:05 - [info] Node.js version: v12.18.3
25 Jul 07:27:05 - [info] Linux 4.19.118-v7l+ arm LE
25 Jul 07:27:06 - [info] Loading palette nodes
25 Jul 07:27:08 - [info] Dashboard version 2.22.1 started at /ui
25 Jul 07:27:08 - [info] Settings file : /home/pi/.node-red/settings.js
25 Jul 07:27:08 - [info] Context store : 'default' [module=memory]
25 Jul 07:27:08 - [info] Context store : 'storeInFile' [module=localfilesystem]
25 Jul 07:27:08 - [info] User directory : /home/pi/.node-red
25 Jul 07:27:08 - [warn] Projects disabled : editorTheme.projects.enabled=false
25 Jul 07:27:08 - [info] Flows file : /home/pi/.node-red/flows_raspberrypi.json
25 Jul 07:27:08 - [info] Server now running at http://127.0.0.1:1880/
25 Jul 07:27:08 - [warn]
---------------------------------------------------------------------
Your flow credentials file is encrypted using a system-generated key.
If the system-generated key is lost for any reason, your credentials
file will not be recoverable, you will have to delete it and re-enter
your credentials.
You should set your own key using the 'credentialSecret' option in
your settings file. Node-RED will then re-encrypt your credentials
file using your chosen key the next time you deploy a change.
---------------------------------------------------------------------
25 Jul 07:27:08 - [info] Starting flows
25 Jul 07:27:08 - [info] Started flows
25 Jul 07:27:10 - [info] [debug:275c17e7.b56a08] 1595687230828
and the log from var/log/syslog
Jul 25 07:27:05 raspberrypi Node-RED[333]: Welcome to Node-RED
Jul 25 07:27:05 raspberrypi Node-RED[333]: ===================
Jul 25 07:27:05 raspberrypi Node-RED[333]: 25 Jul 07:27:05 - [info] Node-RED version: v1.1.0
Jul 25 07:27:05 raspberrypi Node-RED[333]: 25 Jul 07:27:05 - [info] Node.js version: v12.18.3
Jul 25 07:27:05 raspberrypi Node-RED[333]: 25 Jul 07:27:05 - [info] Linux 4.19.118-v7l+ arm LE
Jul 25 07:27:05 raspberrypi systemd[1]: systemd-rfkill.service: Succeeded.
Jul 25 07:27:06 raspberrypi Node-RED[333]: 25 Jul 07:27:06 - [info] Loading palette nodes
Jul 25 07:27:08 raspberrypi Node-RED[333]: 25 Jul 07:27:08 - [info] Dashboard version 2.22.1 started at /ui
Jul 25 07:27:08 raspberrypi Node-RED[333]: 25 Jul 07:27:08 - [info] Settings file : /home/pi/.node-red/settings.js
Jul 25 07:27:08 raspberrypi Node-RED[333]: 25 Jul 07:27:08 - [info] Context store : 'default' [module=memory]
Jul 25 07:27:08 raspberrypi Node-RED[333]: 25 Jul 07:27:08 - [info] Context store : 'storeInFile' [module=localfilesystem]
Jul 25 07:27:08 raspberrypi dhcpcd[346]: wlan0: carrier acquired
Jul 25 07:27:08 raspberrypi dhcpcd[346]: wlan0: connected to Access Point `cheshire'
Jul 25 07:27:08 raspberrypi Node-RED[333]: 25 Jul 07:27:08 - [info] User directory : /home/pi/.node-red
Jul 25 07:27:08 raspberrypi Node-RED[333]: 25 Jul 07:27:08 - [warn] Projects disabled : editorTheme.projects.enabled=false
Jul 25 07:27:08 raspberrypi Node-RED[333]: 25 Jul 07:27:08 - [info] Flows file : /home/pi/.node-red/flows_raspberrypi.json
Jul 25 07:27:08 raspberrypi dhcpcd[346]: wlan0: IAID 32:7c:55:96
Jul 25 07:27:08 raspberrypi Node-RED[333]: 25 Jul 07:27:08 - [info] Server now running at http://127.0.0.1:1880/
Jul 25 07:27:08 raspberrypi Node-RED[333]: 25 Jul 07:27:08 - [warn]
Jul 25 07:27:08 raspberrypi Node-RED[333]: ---------------------------------------------------------------------
Jul 25 07:27:08 raspberrypi Node-RED[333]: Your flow credentials file is encrypted using a system-generated key.
Jul 25 07:27:08 raspberrypi Node-RED[333]: If the system-generated key is lost for any reason, your credentials
Jul 25 07:27:08 raspberrypi Node-RED[333]: file will not be recoverable, you will have to delete it and re-enter
Jul 25 07:27:08 raspberrypi Node-RED[333]: your credentials.
Jul 25 07:27:08 raspberrypi Node-RED[333]: You should set your own key using the 'credentialSecret' option in
Jul 25 07:27:08 raspberrypi Node-RED[333]: your settings file. Node-RED will then re-encrypt your credentials
Jul 25 07:27:08 raspberrypi Node-RED[333]: file using your chosen key the next time you deploy a change.
Jul 25 07:27:08 raspberrypi Node-RED[333]: ---------------------------------------------------------------------
Jul 25 07:27:08 raspberrypi Node-RED[333]: 25 Jul 07:27:08 - [info] Starting flows
Jul 25 07:27:08 raspberrypi Node-RED[333]: 25 Jul 07:27:08 - [info] Started flows
Jul 25 07:27:09 raspberrypi kernel: [ 12.297669] Bluetooth: Core ver 2.22
Jul 25 07:27:09 raspberrypi kernel: [ 12.297713] NET: Registered protocol family 31
Jul 25 07:27:09 raspberrypi kernel: [ 12.297717] Bluetooth: HCI device and connection manager initialized
Jul 25 07:27:09 raspberrypi kernel: [ 12.297734] Bluetooth: HCI socket layer initialized
Jul 25 07:27:09 raspberrypi kernel: [ 12.297741] Bluetooth: L2CAP socket layer initialized
Jul 25 07:27:09 raspberrypi kernel: [ 12.297760] Bluetooth: SCO socket layer initialized
Jul 25 07:27:09 raspberrypi kernel: [ 12.307406] Bluetooth: HCI UART driver ver 2.3
Jul 25 07:27:09 raspberrypi kernel: [ 12.307413] Bluetooth: HCI UART protocol H4 registered
Jul 25 07:27:09 raspberrypi kernel: [ 12.307455] Bluetooth: HCI UART protocol Three-wire (H5) registered
Jul 25 07:27:09 raspberrypi kernel: [ 12.307558] Bluetooth: HCI UART protocol Broadcom registered
Jul 25 07:27:09 raspberrypi btuart[356]: bcm43xx_init
Jul 25 07:27:09 raspberrypi btuart[356]: Flash firmware /lib/firmware/brcm/BCM4345C0.hcd
Jul 25 07:27:09 raspberrypi btuart[356]: Set Controller UART speed to 3000000 bit/s
Jul 25 07:27:09 raspberrypi btuart[356]: Device setup complete
Jul 25 07:27:09 raspberrypi systemd[1]: Starting Load/Save RF Kill Switch Status...
Jul 25 07:27:09 raspberrypi systemd[1]: Started Configure Bluetooth Modems connected by UART.
Jul 25 07:27:09 raspberrypi systemd[1]: Started Load/Save RF Kill Switch Status.
Jul 25 07:27:09 raspberrypi systemd[1]: Starting Bluetooth service...
Jul 25 07:27:09 raspberrypi systemd[1]: Created slice system-bthelper.slice.
Jul 25 07:27:09 raspberrypi bluetoothd[517]: Bluetooth daemon 5.50
Jul 25 07:27:09 raspberrypi systemd[1]: Started Bluetooth service.
Jul 25 07:27:09 raspberrypi systemd[1]: Reached target Bluetooth.
Jul 25 07:27:09 raspberrypi systemd[1]: Started Raspberry Pi bluetooth helper.
Jul 25 07:27:09 raspberrypi bluetoothd[517]: Starting SDP server
Jul 25 07:27:09 raspberrypi kernel: [ 12.454050] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
Jul 25 07:27:09 raspberrypi kernel: [ 12.454056] Bluetooth: BNEP filters: protocol multicast
Jul 25 07:27:09 raspberrypi kernel: [ 12.454066] Bluetooth: BNEP socket layer initialized
Jul 25 07:27:09 raspberrypi bluetoothd[517]: Bluetooth management interface 1.14 initialized
Jul 25 07:27:09 raspberrypi dbus-daemon[332]: [system] Activating via systemd: service name='org.freedesktop.hostname1' unit='dbus-org.freedesktop.hostname1.service' requested by ':1.5' (uid=0 pid=517 comm="/usr/lib/bluetooth/bluetoothd ")
Jul 25 07:27:09 raspberrypi systemd[1]: Starting Hostname Service...
Jul 25 07:27:09 raspberrypi bluetoothd[517]: Sap driver initialization failed.
Jul 25 07:27:09 raspberrypi bluetoothd[517]: sap-server: Operation not permitted (1)
Jul 25 07:27:09 raspberrypi bthelper[518]: Changing power off succeeded
Jul 25 07:27:09 raspberrypi bthelper[518]: [#033[0;93mCHG#033[0m] Controller DC:A6:32:7C:55:97 Powered: yes
Jul 25 07:27:09 raspberrypi bthelper[518]: [#033[0;93mCHG#033[0m] Controller DC:A6:32:7C:55:97 UUIDs: 00001801-0000-1000-8000-00805f9b34fb
Jul 25 07:27:09 raspberrypi bthelper[518]: [#033[0;93mCHG#033[0m] Controller DC:A6:32:7C:55:97 UUIDs: 0000110e-0000-1000-8000-00805f9b34fb
Jul 25 07:27:09 raspberrypi bthelper[518]: [#033[0;93mCHG#033[0m] Controller DC:A6:32:7C:55:97 UUIDs: 00001200-0000-1000-8000-00805f9b34fb
Jul 25 07:27:09 raspberrypi bthelper[518]: [#033[0;93mCHG#033[0m] Controller DC:A6:32:7C:55:97 UUIDs: 0000110c-0000-1000-8000-00805f9b34fb
Jul 25 07:27:09 raspberrypi bthelper[518]: [#033[0;93mCHG#033[0m] Controller DC:A6:32:7C:55:97 UUIDs: 00001800-0000-1000-8000-00805f9b34fb
Jul 25 07:27:09 raspberrypi bthelper[518]: [#033[0;93mCHG#033[0m] Controller DC:A6:32:7C:55:97 UUIDs: 00001801-0000-1000-8000-00805f9b34fb
Jul 25 07:27:09 raspberrypi bthelper[518]: [#033[0;93mCHG#033[0m] Controller DC:A6:32:7C:55:97 UUIDs: 0000110e-0000-1000-8000-00805f9b34fb
Jul 25 07:27:09 raspberrypi bthelper[518]: [#033[0;93mCHG#033[0m] Controller DC:A6:32:7C:55:97 UUIDs: 00001200-0000-1000-8000-00805f9b34fb
Jul 25 07:27:09 raspberrypi bthelper[518]: [#033[0;93mCHG#033[0m] Controller DC:A6:32:7C:55:97 UUIDs: 0000110c-0000-1000-8000-00805f9b34fb
Jul 25 07:27:09 raspberrypi bthelper[518]: [#033[0;93mCHG#033[0m] Controller DC:A6:32:7C:55:97 UUIDs: 00001800-0000-1000-8000-00805f9b34fb
Jul 25 07:27:09 raspberrypi bthelper[518]: [#033[0;93mCHG#033[0m] Controller DC:A6:32:7C:55:97 Alias: BlueZ 5.50
Jul 25 07:27:09 raspberrypi bthelper[518]: [#033[0;93mCHG#033[0m] Controller DC:A6:32:7C:55:97 Pairable: yes
Jul 25 07:27:09 raspberrypi bthelper[518]: Changing power on succeeded
Jul 25 07:27:09 raspberrypi systemd[1]: bthelper@hci0.service: Succeeded.
Jul 25 07:27:09 raspberrypi dhcpcd[346]: wlan0: rebinding lease of 192.168.1.21
Jul 25 07:27:09 raspberrypi dbus-daemon[332]: [system] Successfully activated service 'org.freedesktop.hostname1'
Jul 25 07:27:09 raspberrypi systemd[1]: Started Hostname Service.
Jul 25 07:27:09 raspberrypi dhcpcd[346]: wlan0: soliciting an IPv6 router
Jul 25 07:27:10 raspberrypi dhcpcd[346]: wlan0: probing address 192.168.1.21/24
Jul 25 07:27:10 raspberrypi Node-RED[333]: 25 Jul 07:27:10 - [info] [debug:275c17e7.b56a08] 1595687230828
Jul 25 07:27:14 raspberrypi systemd[1]: systemd-rfkill.service: Succeeded.
Jul 25 07:27:15 raspberrypi dhcpcd[346]: wlan0: leased 192.168.1.21 for 86400 seconds
Jul 25 07:27:15 raspberrypi avahi-daemon[335]: Joining mDNS multicast group on interface wlan0.IPv4 with address 192.168.1.21.
Jul 25 07:27:15 raspberrypi avahi-daemon[335]: New relevant interface wlan0.IPv4 for mDNS.
Jul 25 07:27:15 raspberrypi avahi-daemon[335]: Registering new address record for 192.168.1.21 on wlan0.IPv4.
Jul 25 07:27:15 raspberrypi dhcpcd[346]: wlan0: adding route to 192.168.1.0/24
Jul 25 07:27:15 raspberrypi dhcpcd[346]: wlan0: adding default route via 192.168.1.1
Jul 25 07:27:15 raspberrypi dhcpcd[346]: forked to background, child pid 580
Jul 25 07:27:15 raspberrypi systemd[1]: Started dhcpcd on all interfaces.
Jul 25 07:27:15 raspberrypi systemd[1]: Reached target Network.
Jul 25 07:27:15 raspberrypi systemd[1]: Starting OpenBSD Secure Shell server...
Jul 25 07:27:15 raspberrypi systemd[1]: Reached target Network is Online.
Jul 25 07:27:15 raspberrypi systemd[1]: Starting Mosquitto MQTT v3.1/v3.1.1 Broker...
Jul 25 07:27:15 raspberrypi systemd[1]: Condition check resulted in fast remote file copy program daemon being skipped.
Jul 25 07:27:15 raspberrypi systemd[1]: Starting Permit User Sessions...
Jul 25 07:27:15 raspberrypi systemd[1]: Starting /etc/rc.local Compatibility...
Jul 25 07:27:15 raspberrypi systemd[1]: Started /etc/rc.local Compatibility.
Jul 25 07:27:15 raspberrypi systemd[1]: Started Permit User Sessions.
Jul 25 07:27:15 raspberrypi systemd[1]: Started Getty on tty1.
Jul 25 07:27:15 raspberrypi systemd[1]: Reached target Login Prompts.
Jul 25 07:27:15 raspberrypi systemd[1]: Started Mosquitto MQTT v3.1/v3.1.1 Broker.
Jul 25 07:27:15 raspberrypi systemd[1]: Started OpenBSD Secure Shell server.
Jul 25 07:27:15 raspberrypi systemd[1]: Reached target Multi-User System.
Jul 25 07:27:15 raspberrypi systemd[1]: Starting Update UTMP about System Runlevel Changes...
Jul 25 07:27:15 raspberrypi systemd[1]: systemd-update-utmp-runlevel.service: Succeeded.
Jul 25 07:27:15 raspberrypi systemd[1]: Started Update UTMP about System Runlevel Changes.
Jul 25 07:27:15 raspberrypi systemd[1]: Startup finished in 1.044s (kernel) + 17.815s (userspace) = 18.859s.
Jul 25 07:27:15 raspberrypi systemd[1]: Created slice User Slice of UID 1000.
Jul 25 07:27:15 raspberrypi systemd[1]: Starting User Runtime Directory /run/user/1000...
Jul 25 07:27:15 raspberrypi systemd[1]: Started User Runtime Directory /run/user/1000.
Jul 25 07:27:15 raspberrypi systemd[1]: Starting User Manager for UID 1000...
Jul 25 07:27:16 raspberrypi systemd[596]: Listening on GnuPG cryptographic agent and passphrase cache.
Jul 25 07:27:16 raspberrypi systemd[596]: Listening on GnuPG network certificate management daemon.
Jul 25 07:27:16 raspberrypi systemd[596]: Reached target Paths.
Jul 25 07:27:16 raspberrypi systemd[596]: Listening on GnuPG cryptographic agent (ssh-agent emulation).
Jul 25 07:27:16 raspberrypi systemd[596]: Listening on GnuPG cryptographic agent and passphrase cache (restricted).
Jul 25 07:27:16 raspberrypi systemd[596]: Listening on GnuPG cryptographic agent and passphrase cache (access for web browsers).
Jul 25 07:27:16 raspberrypi systemd[596]: Reached target Sockets.
Jul 25 07:27:16 raspberrypi systemd[596]: Reached target Timers.
Jul 25 07:27:16 raspberrypi systemd[596]: Reached target Basic System.
Jul 25 07:27:16 raspberrypi systemd[596]: Reached target Default.
Jul 25 07:27:16 raspberrypi systemd[596]: Startup finished in 133ms.
Jul 25 07:27:16 raspberrypi systemd[1]: Started User Manager for UID 1000.
Jul 25 07:27:16 raspberrypi systemd[1]: Started Session c1 of user pi.
Jul 25 07:27:31 raspberrypi systemd[1]: systemd-fsckd.service: Succeeded.
Jul 25 07:27:44 raspberrypi systemd-timesyncd[291]: Synchronized to time server for the first time 133.243.238.243:123 (2.debian.pool.ntp.org).
Jul 25 07:27:45 raspberrypi systemd[1]: Started Session c2 of user pi.
Jul 25 07:27:52 raspberrypi systemd[1]: systemd-hostnamed.service: Succeeded.
pi@raspberrypi:/var/log $
