Issue with one user only, exceeding connections

[John Stoffel]

>>>>> "Jeremy" == Jeremy Schaeffer <kb9mfd at phonesplus.biz> writes:

Jeremy> Thanks for the command, that is very useful.  That user is
Jeremy> actually me, I know why where are so many open. I have my
Jeremy> computer, and two tablets, and since I am using server side
Jeremy> filtering (procmail) I have to set watch on all the folders
Jeremy> that are filtered to or I miss a email. But I am doing the
Jeremy> same for about 4 other users accounts I also monitor, so I am
Jeremy> not sure why it's just my username that is doing that. I am
Jeremy> going to shut down all the clients one at a time and see what
Jeremy> client is opening all those connections.

I too used to use procmail, but it's old and un-maintained and it's
not a great solution any more.  Instead just setup Sieve and you can
manage it remotely.  I personally do it from a makefile which does all
the steps needed, and I just edit the file in emacs as needed.

I can give you a copy of my makefile if that will help.


Jeremy> Once I close the client, I assume the connection should also close and 
Jeremy> the count go down, correct?

Jeremy> I turned off both tablets and the connection count for my username still 
Jeremy> is at 60, since I am writing this email with my computer client I will 
Jeremy> send it and close my client and see what happens. Thanks! - Jeremy

Jeremy> On 6/9/2022 11:29, Richard wrote:
>> 
>>> Date: Thursday, June 09, 2022 11:07:38 -0500
>>> From: Jeremy Schaeffer <kb9mfd at phonesplus.biz>
>>> 
>>> On 6/9/2022 10:59, Richard wrote:
>>>>> Date: Thursday, June 09, 2022 10:46:25 -0500
>>>>> From: Jeremy Schaeffer <kb9mfd at phonesplus.biz>
>>>>> 
>>>>> That was the first thing I tried, I lowered the cache connections
>>>>> in Thunderbird. Actually the max connections was 50, not 500, but
>>>>> I could see why as I do have a lot of folders, but what is odd is
>>>>> I have other mailboxes that have even more folders, but it's only
>>>>> one mailbox that is trowing the error.
>>>>> 
>>>>> "# ps -axww | grep imap" does not give me the same results -
>>>>> 
>>>>> .....
>>>>> 
>>>>> 19897 ?        S      0:00 dovecot/imap
>>>>> 19900 ?        S      0:02 dovecot/imap
>>>>> 19901 ?        S      0:00 dovecot/imap
>>>>> 19902 ?        S      0:00 dovecot/imap
>>>>> .....
>>>>> 
>>>>> I wish it did give me the mailbox, is there a option to get it to
>>>>> give me that information?
>>>> Try "auxw" on your "ps". I.e., add in the "u" which will get you
>>>> the user detail in the first column, otherwise you just get the
>>>> process id.
>>>> 
>>>> 
>>> Thank you! That worked, I piped the output to a file, grep the
>>> username and sure enough there are 60 lines. So I guess going over
>>> 50 was a possibility.
>>> 
>>> Learn something new every day. I set the maximum to 100 so I should
>>> not have any errors on that anymore.
>>> 
>> 
>> Rather than simply upping the limit I think a reasonable question to
>> ask is why/how they are managing to do that. That's a lot of open
>> folders.
>> 
>> By the way, the single command:
>> 
>> ps auxw | grep imap | cut -d" " -f1 | sort | uniq -c
>> 
>> will get you a nice list with the users and their connection counts.
>> 
>> 
>> 
>>