[Evolution-users] Constantly have to clear cache

[Steve Phillips]

Thanks Pete!

I agree that it is not critical.

I really appreciate the help and apologize for the wrong understanding
initially.  I made assumptions based on what I found on the Internet.
 Not reading the error message properly was part of the issue.

I think it's all good now.

On Sun, 2025-11-09 at 18:13 +0000, Pete Biggs wrote:
> On Sun, 2025-11-09 at 11:38 -0500, Steve Phillips wrote:
> > Well, I'm not sure if that setting suggestion was for debugging
> > purposes but the issue has not occurred since I set it to single
> > connections.
> 
> You can leave it as it is - I have had it set like that on multiple
> accounts for many years. It may even be correct to set it to '1'.
> 
> > 
> > Does that mean my race condition theory was correct?
> > 
> The setting controls how many connections are made to the server -
> the
> theory being that with more connections you can download multiple
> messages at a time, so things feel faster. However its efficacy is
> largely dependent on the server and some servers really don't like it -
> or at least the admins configure the software to only allow a single
> connection at a time from clients. (From an admin point of view if
> everyone use 3 or 4 connections, that represents a large increase in
> load on a busy server.)
> 
> So it's not a race condition per se, although it does feel like it.
> What I think happens is that when the server sees a second connection
> start up it terminates the current connection, and if that is in the
> process of downloading the message body, Evolution will "see" an
> empty
> cache file and complain. (I don't actually know the internal workings
> of Evolution that well, but it seems to be an explanation!) 
> 
> In modern high speed networks I don't think the multiple connections
> are that important. A side effect is that if you are downloading a
> large message, then the connection will block for a while. But
> personally I think it's a fairly minor inconvenience to get a much
> more
> stable experience.
> 
> P. 
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