[CalendarServer-dev] Error running calendarserver after upgrading db from 5.x to 7.x

[Rahul Amaram]

On Friday 29 January 2016 06:47 AM, Andre LaBranche wrote:
>> Also, the psutil version installed on the system is 3.4.1 while the version mentioned in requirements-stable.txt is 2.2.1. So, I went ahead and downgraded psutil to 2.2.1 by installing an older debian package and the error went away. So, psutil was the cause of the issue. Is it possible to make calendarserver compatible with 3.4.1? The incompatibility issue seems to be becoming a recurring theme :).
> I can check on that, but I vaguely recall some reason why we haven't updated to newer psutil.
(a) Could you check on this? It is sort of a blocker for pushing the new 
calendarserver version to Debian. If you could provide a patch, I could 
easily incorporate it.
>> Finally, tasks were still not enabled for the user after the upgrade. What do I need to check for this?
> I think this should be based only on the config value for EnableCardDAV, and possibly also the listener port configuration, depending on how the clients are configured.
I think tasks are related to caldavd. Anyway, I figured this out. The 
RestrictCalendarsToOneComponentType config has to be set to false for 
Thunderbird to be able to handle tasks and events. I set this option to 
false in the default config file that gets distributed with the package 
but for some reason while testing, I had removed the option. So, this 
problem could be considered resolved.

(b) Finally, everything seems to be working as expected :). I am 
however, seeing these two errors in my log files. Could I ignore them? 
Or is there a fix for it?

1. 2016-01-29 12:37:11+0530 [-] [caldav-1] 
[PooledMemCacheProtocol,client] 
[twistedcaldav.memcachepool.MemCachePool#error] Memcache error: Invalid 
type for key: <type 'unicode'>, expecting a string; request: set 
cacheToken:/calendars/__uids__/F343A113-0C2B-5A69-B049-A4C72FCAEF9B/ 
0553b3f8-1b1a-4ad9-a9d6-4aa70558d81e
2016-01-29 12:37:11+0530 [-] [caldav-1] [PooledMemCacheProtocol,client] 
[twistedcaldav.memcachepool.MemCachePool#error] Memcache error: Invalid 
type for key: <type 'unicode'>, expecting a string; request: set 
cacheToken:/calendars/__uids__/F343A113-0C2B-5A69-B049-A4C72FCAEF9B/calendar/ 
4582ad22-bb79-4c45-bdec-e7cae7aa5f80
2016-01-29 12:37:11+0530 [-] [caldav-1] [PooledMemCacheProtocol,client] 
[twistedcaldav.memcachepool.MemCachePool#error] Memcache error: Invalid 
type for key: <type 'unicode'>, expecting a string; request: set 
cacheToken:/calendars/__uids__/F343A113-0C2B-5A69-B049-A4C72FCAEF9B/ 
40aed427-a35f-41dd-9f79-fefc56ff8006

2. 2016-01-29 12:44:18+0530 [-] [twext.enterprise.jobs.queue#error] 
workCheck: jobqueue is no longer overloaded

(c) Also, could something be commented on the attached patch. Is is 
safe? I really don't understand what the fix is but it does seem to help 
for handling the problem of "/usr/bin/twistd: Unknown command: 
caldav_directoryproxy" post-upgradation.


Looking forward to a response.

Thanks,
Rahul.
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