[SOLVED] Re: LMTPD process stuck at 100% - blocking mail deliveries - 3.8.1

Hi All,

I managed to resolve this.

----------------------- Original message -----------------------
From: Joost Roeleveld via Info <[email protected]>
To: Info <[email protected]>
Date: Wed, 07 Feb 2024 10:17:36 +0100
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>>> Hi All,
>>>
>>> I tried upgrading from 3.4.5 to 3.8.1.
>>> All the steps went fine and I could access my emails.
>>>
>>> However, when I restarted postfix to have emails delivered, I  
>>> noticed the "lmtpd" process to be stuck at 100%.
>>> No emails were being delivered and all was stuck.
>>
>> I face this from time to time on my 3.2.6 murder cluster.
>> strace shows that the process qets stuck in conversations index.
>>
>> kill process, ctl_conversationsdb -z user and then  
>> ctl_conversationsdb -b user makes lmtp working again.
>> Sometimes I had to rm user.conversations but that was maybe when I  
>> didn't wait for -z to finish.
> 
> Thank you for your reply.
> Unfortunately, I don't think this was the cause.
> 
> I checked which files it had open (using lsof), and it only showed
> "deliver.db"
> This file is on a tmpfs and is rebuild every time the server restarts.
> This was recommended in the documentation when I upgraded to 3.4.x
> in the past and I haven't had any issues with that since.
> 
> And I did try this, but every time postfix would start trying to
> deliver emails, the lmtpd would instantly lock up.
> And I did do "reconstruct" and "ctl_conversationsdb" commands in
> between tries.
> 
> Kind regards,
> 
> Joost
> 




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