[imp] Lots of Warnings in horde.log

Karsten Schlimme karsten at schlimme.net
Wed Jan 22 17:16:11 UTC 2014


>> Hi everybody!
>>
>> I just finished my first Horde (webmail edition) install on Ubuntu
>> 12.04. After I had some problems with changing the language (I had
>> to add my wanted language and do a "|dpkg-reconfigure locales") and
>> with ActiveSync (I had to manually choose every folder for syncing
>> at the client), my only problem are lots of warnings in the
>> horde.log. After 15 minutes there are ~2000 new warnings, most of
>> them look like this:
>>
>> 2014-01-21T17:56:27+00:00 WARN: HORDE [imp] PHP ERROR: array_map():
>> Argument #2 should be an array [pid 3581 on line 706 of
>> "/usr/share/php/Horde/Imap/Client/Base.php"]
>>
>> ..only the pid changes. Every 8th of those warnings is followed by:
>>
>> 2014-01-21T18:25:53+00:00 WARN: HORDE [imp] PHP ERROR:
>> array_filter() expects parameter 1 to be array, null given [pid 6659
>> on line 719 of "/usr/share/php/Horde/Imap/Client/Base.php"]
>> 2014-01-21T18:25:53+00:00 WARN: HORDE [imp] PHP ERROR: array_diff():
>> Argument #1 is not an array [pid 6659 on line 719 of
>> "/usr/share/php/Horde/Imap/Client/Base.php"]
>
> What IMAP server is used? Do you use IMAP caching?
> Maybe clearing the cache could help "horde-clear-cache->y"
>
> Regards
>
> Andreas

Hi Andreas,

thank you for this hint. I tried this command and checked the log  
file. In the first moment it seems like the warnings were gone. After  
some minutes the first warnings showed up again, but only a few. Now,  
after 3 hours, there are only 650 warnings in the log. So I think they  
could SMTP cache related.

I'm using dovecot-imapd 1:2.1.7-7 in combination with ISPConfig  
3.0.5.3, now I'm trying to figure out if caching is enabled and where  
to change this in ISPConfig, but I can't find anything.

Best regards,

Karsten



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