What is the problem?
My OctoPi installation's web interface takes a pretty long time to start before it'll start accepting web requests
I timed how long it took between me running sudo service octopi start
and it actually showing the printer controls and it took about 5 minutes. It will show the "Octoprint is starting page" for awhile, but then it has a long period where my browser will perpetually load saying "Waiting for " in the bottom corner. I opened up the chrome network activity log and it just showed the request as "pending" with 0 bytes being transferred.
What did you already try to solve it?
I tried disabling camera to see if it'd free up bandwith, but that's about all i could think of
Additional information about your setup
OctoPrint Version: 1.3.9
OctoPi Version: 0.15.1
Printer: Monoprice Select Mini V2
Printer Firmware: V40.115.3
octoprint.log
2018-11-04 04:30:35,410 - octoprint.startup - INFO - ******************************************************************************
2018-11-04 04:30:35,422 - octoprint.startup - INFO - Starting OctoPrint 1.3.9
2018-11-04 04:30:35,425 - octoprint.startup - INFO - ******************************************************************************
2018-11-04 04:30:36,657 - octoprint.startup - INFO - Blacklist processing done
2018-11-04 04:30:36,954 - octoprint.plugin.core - INFO - Loading plugins from /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins, /home/pi/.octoprint/plugins and installed plugin packages...
2018-11-04 04:30:44,996 - octoprint.plugin.core - INFO - Plugin Printer Safety Check is disabled.
2018-11-04 04:30:50,747 - octoprint.plugin.core - INFO - Found 13 plugin(s) providing 12 mixin implementations, 8 hook handlers
2018-11-04 04:30:51,372 - octoprint.server.heartbeat - INFO - Starting server heartbeat, 900.0s interval
2018-11-04 04:30:51,623 - octoprint.server - INFO - Intermediary server started
2018-11-04 04:30:51,633 - octoprint.plugin.core - INFO - Loading plugins from /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins, /home/pi/.octoprint/plugins and installed plugin packages...
2018-11-04 04:30:56,857 - octoprint.plugin.core - INFO - Found 13 plugin(s) providing 12 mixin implementations, 8 hook handlers
2018-11-04 04:30:57,182 - octoprint.filemanager.storage - INFO - Initializing the file metadata for /home/pi/.octoprint/uploads...
2018-11-04 04:30:57,195 - octoprint.filemanager.storage - INFO - ... file metadata for /home/pi/.octoprint/uploads initialized successfully.
2018-11-04 04:30:57,859 - octoprint.plugins.softwareupdate - INFO - Loaded version cache from disk
2018-11-04 04:31:12,656 - octoprint.util.pip - INFO - Using "/home/pi/oprint/bin/python2 -m pip" as command to invoke pip
2018-11-04 04:31:26,693 - octoprint.util.pip - INFO - Version of pip is 9.0.3
2018-11-04 04:31:26,707 - octoprint.util.pip - INFO - pip installs to /home/pi/oprint/lib/python2.7/site-packages (writable -> yes), --user flag needed -> no, virtual env -> yes
2018-11-04 04:31:26,716 - octoprint.util.pip - INFO - ==> pip ok -> yes
2018-11-04 04:31:26,747 - octoprint.plugin.core - INFO - Initialized 12 plugin implementation(s)
2018-11-04 04:31:26,819 - octoprint.plugin.core - INFO - 13 plugin(s) registered with the system:
| Action Command Prompt Support (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/action_command_prompt
| Announcement Plugin (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/announcements
| Core Wizard (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/corewizard
| CuraEngine (<= 15.04) (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/cura
| Discovery (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/discovery
| EEPROM Editor for MPSM (0.1.1) = /home/pi/oprint/local/lib/python2.7/site-packages/octoprint_eeprom_MPSelectMini
| Logging (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/logging
| Malyan/Monoprice Connection Fix (0.1.0) = /home/pi/oprint/local/lib/python2.7/site-packages/octoprint_malyan_connection_fix
| OctoPi Support Plugin (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/octopi_support
| Plugin Manager (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/pluginmanager
| !Printer Safety Check (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/printer_safety_check
| Software Update (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/softwareupdate
| Virtual Printer (bundled) = /home/pi/oprint/lib/python2.7/site-packages/octoprint/plugins/virtual_printer
2018-11-04 04:31:26,966 - octoprint.environment - INFO - Detected environment is Python 2.7.13 under Linux (linux2). Details:
| hardware:
| cores: 1
| freq: 900.0
| ram: 388038656
| os:
| id: linux
| platform: linux2
| plugins:
| octopi_support:
| model: 1B
| revision: 000f
| version: 0.15.1
| python:
| pip: 9.0.3
| version: 2.7.13
| virtualenv: /home/pi/oprint
2018-11-04 04:31:27,030 - octoprint.server - INFO - Reset webasset folder /home/pi/.octoprint/generated/webassets...
2018-11-04 04:31:27,148 - octoprint.server - INFO - Reset webasset folder /home/pi/.octoprint/generated/.webassets-cache...
2018-11-04 04:31:28,728 - octoprint.server - INFO - Shutting down intermediary server...
2018-11-04 04:31:28,830 - octoprint.server - INFO - Intermediary server shut down
2018-11-04 04:31:28,867 - octoprint.events - INFO - Processing startup event, this is our first event
2018-11-04 04:31:28,879 - octoprint.events - INFO - Adding 0 events to queue that were held back before startup event
2018-11-04 04:31:28,900 - octoprint.filemanager - INFO - Adding backlog items from all storage types to analysis queue...
2018-11-04 04:31:28,924 - octoprint.filemanager - INFO - Added 0 items from storage type "local" to analysis queue
2018-11-04 04:31:30,067 - octoprint.util.comm - INFO - Changing monitoring state from "Offline" to "Opening serial port"
2018-11-04 04:31:30,106 - octoprint.util.comm - INFO - Changing monitoring state from "Opening serial port" to "Connecting"
2018-11-04 04:31:30,211 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2018-11-04 04:31:30,348 - octoprint.util.comm - INFO - Changing monitoring state from "Connecting" to "Operational"
2018-11-04 04:31:30,377 - octoprint.plugins.discovery - INFO - Registered OctoPrint instance "Bedroom Printer" for _http._tcp
2018-11-04 04:31:30,647 - octoprint.plugins.discovery - INFO - Registered OctoPrint instance "Bedroom Printer" for _octoprint._tcp
2018-11-04 04:31:30,673 - octoprint.util.comm - INFO - M110 detected, setting current line number to 0
2018-11-04 04:31:30,743 - octoprint.plugins.discovery - INFO - Registered OctoPrint instance "Bedroom Printer" for SSDP
2018-11-04 04:31:30,798 - octoprint.server - INFO - Listening on http://127.0.0.1:5000
2018-11-04 04:31:30,933 - octoprint.util.comm - INFO - Printer reports firmware name "Malyan 4.0"
2018-11-04 04:31:30,983 - octoprint.util.comm - INFO - Detected Malyan firmware, enabling relevant features for issue free communication
2018-11-04 04:31:31,200 - octoprint.plugins.pluginmanager - INFO - Loaded plugin repository data from disk, was still valid
2018-11-04 04:31:33,373 - octoprint.server.preemptive_cache - INFO - Preemptively caching / (ui _default) for {'query_string': 'l10n=en', 'path': '/', 'base_url': 'http://192.168.1.109/'}
2018-11-04 04:31:40,241 - octoprint.plugins.pluginmanager - INFO - Loaded notice data from disk, was still valid
2018-11-04 04:33:14,027 - octoprint.server.preemptive_cache - INFO - ... done in 100.65s
2018-11-04 04:33:14,038 - octoprint.server.preemptive_cache - INFO - Preemptively caching / (ui _default) for {'query_string': 'l10n=en', 'path': '/', 'base_url': 'http://<redacted public ip>:1221/'}
2018-11-04 04:33:56,438 - octoprint.server.preemptive_cache - INFO - ... done in 42.40s
2018-11-04 04:33:56,449 - octoprint.server.preemptive_cache - INFO - Preemptively caching / (ui _default) for {'query_string': 'l10n=en', 'path': '/', 'base_url': 'http://<redacted public ip>:8080/'}
2018-11-04 04:34:38,787 - octoprint.server.preemptive_cache - INFO - ... done in 42.34s
2018-11-04 04:34:38,798 - octoprint.server.preemptive_cache - INFO - Preemptively caching / (ui _default) for {'query_string': 'l10n=en', 'path': '/', 'base_url': 'http://<redacted domain name>:8080/'}
2018-11-04 04:35:21,119 - octoprint.server.preemptive_cache - INFO - ... done in 42.32s
2018-11-04 04:36:04,715 - octoprint.server.util.sockjs - INFO - New connection from client: ::ffff:192.168.1.103