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Ongoing issues with server access
Hi LiveCloud team,

I'm based in London and have set LCM's region to UK-London.

Performance had been a bit laggy but acceptable. Recently i've been experimenting with different schemas to see how best to store data for a particular project in LiveCloud and have created 3 different iterations of a table with frequent changes up to now in the schema.

However increasingly i'm getting errors where LCM does not refresh, it fails to add tables and fails to add keys. If i keep persisting it eventually works. Or sometimes requires restarting LCM to work and then it it's starts failing again. I was unable to delete a table that couldn't be modified at all, eventually managed it in code using cdb_deleteTable.

I've checked that all communication is definitely getting through my software firewall (Little Snitch 4.5.2, on MacOS Catalina 10.15.6).

It's started generating error messages advising me i should contact Canela, so here i am...
These errors occur any time i choose one of the tables, try to refresh a table, try to add a key or try to add a table. The errors are not exactly reproducible but seem to be increasing in frequency.
[Image: file]

This error also shows up when trying to add/modify tables
[Image: file]
As a side note, my firewall is flagging up several warnings because the code signature for  LiveCloud Manager is not valid (not signed).

[Image: file]

(FWIW, the 'London' servers are in Maidenhead, a good 30 miles outside London -- I'm sure this isn't an issue, but calling it London is a stretch! Also not sure why it's connecting to servers in LA and Washington...)

In trying to track down the source of error, i checked the console in case LCM output any diagnostics there. It doesn't it seems, but it did generate number of diagnostic logs, generated by the wakeups, apparently averaging 2332 wakeups per second -- not sure what that means, but here is a sample of the log text:
Quote:Date/Time:        2020-09-07 15:29:45 +0100
End time:         2020-09-07 15:30:04 +0100
OS Version:       Mac OS X 10.15.6 (Build 19G2021)
Architecture:     x86_64h
Report Version:   29
Incident Identifier: B1C97FBB-8219-4F5E-A3BE-29672CE9BA66

Data Source:      Microstackshots
Shared Cache:     0x8824000 A58FA787-1403-34AF-813D-C380C25A1080

Command:          LiveCloudManager
Path:             /Applications/LiveCloudManager.app/Contents/MacOS/LiveCloudManager
Identifier:       com.canelasoftware.LiveCloudManager
Version:          LiveCloudManager (LiveCloudManager)
PID:              1559

Event:            wakeups
Action taken:     none
Wakeups:          45001 wakeups over the last 19 seconds (2332 wakeups per second average), exceeding limit of 150 wakeups per second over 300 seconds
Wakeups limit:    45000
Limit duration:   300s
Wakeups caused:   45001
Wakeups duration: 19s
Duration:         19.29s
Duration Sampled: 14.74s
Steps:            3

Hardware model:   MacBookPro13,3
Active cpus:      8

Fan speed:        2158 rpm

Heaviest stack for the target process:
  1  thread_start + 15 (libsystem_pthread.dylib + 7051) [0x7fff6fbddb8b]
  1  _pthread_start + 148 (libsystem_pthread.dylib + 24841) [0x7fff6fbe2109]
  1  tsNetPollThreadRoutine(void*) + 775 (tsNet + 83113) [0x10bb8c4a9]
  1  event_base_loop + 1271 (tsNet + 1526743) [0x10bcecbd7]
  1  poll + 10 (libsystem_kernel.dylib + 29654) [0x7fff6fb253d6]

Powerstats for:   LiveCloudManager [1559]
UUID:             BD594B58-8203-4D07-98A5-6A9CB3921BF9
Path:             /Applications/LiveCloudManager.app/Contents/MacOS/LiveCloudManager
Architecture:     x86_64
Footprint:        153.12 MB
Start time:       2020-09-07 15:29:49 +0100
End time:         2020-09-07 15:30:04 +0100
Num samples:      3 (100%)
CPU Time:         0.823s
Primary state:    2 samples Frontmost App, Non-Suppressed, User mode, Effective Thread QoS User Interactive, Requested Thread QoS User Interactive, Override 

Is this something to be concerned about?
Whatever the issue was, it seems to have been resolved now...

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