Re: [Dovecot] Thunderbird Problem - What causes this?
Marc Perkel wrote: Strange problem and I'm not sure what's causing it. I'm using IMAP. A new message arives in the inbox. I see it displayed in the message list in bold. I click on the message and it looks like it's reading it by the previous message that was in the window remains and the new message is still bold (unread). However I can then click on an old message and then click on the new message again and it reads. I have also seen Thunderbird be in a somewhat unresponsive state. You can click on messages and they don't read. But Shutting down Thunderbird and restarting it make it responsive again. Has anyone seen this? I've seen this with avast and kaspersky (with heuristics enabled). I've moved to NOD32 since then.
Re: [Dovecot] Thunderbird Problem - What causes this?
On Sunday 27 January 2008 15:41:04 Marc Perkel wrote: Strange problem and I'm not sure what's causing it. I'm using IMAP. A new message arives in the inbox. I see it displayed in the message list in bold. I click on the message and it looks like it's reading it by the previous message that was in the window remains and the new message is still bold (unread). However I can then click on an old message and then click on the new message again and it reads. I have reported the same behaviour in KMail over Dovecot - and someone else also reported it. That seems to suggest that it's a Dovecot problem. Anne signature.asc Description: This is a digitally signed message part.
Re: [Dovecot] Thunderbird Problem - What causes this?
On Sun, 2008-01-27 at 20:49 +, Anne Wilson wrote: On Sunday 27 January 2008 15:41:04 Marc Perkel wrote: Strange problem and I'm not sure what's causing it. I'm using IMAP. A new message arives in the inbox. I see it displayed in the message list in bold. I click on the message and it looks like it's reading it by the previous message that was in the window remains and the new message is still bold (unread). However I can then click on an old message and then click on the new message again and it reads. I have reported the same behaviour in KMail over Dovecot When? I can't find a mail from you about it. Although there are some old mails about Dovecot v0.99.x. - and someone else also reported it. That seems to suggest that it's a Dovecot problem. This used to happen with some old Dovecot versions (before v1.0 RCs), but I don't remember having heard about it for at least a year now. signature.asc Description: This is a digitally signed message part
Re: [Dovecot] Thunderbird Problem - What causes this?
On Sunday 27 January 2008 20:49:42 Anne Wilson wrote: On Sunday 27 January 2008 15:41:04 Marc Perkel wrote: Strange problem and I'm not sure what's causing it. I'm using IMAP. A new message arives in the inbox. I see it displayed in the message list in bold. I click on the message and it looks like it's reading it by the previous message that was in the window remains and the new message is still bold (unread). However I can then click on an old message and then click on the new message again and it reads. I have reported the same behaviour in KMail over Dovecot - and someone else also reported it. That seems to suggest that it's a Dovecot problem. I should have said that I reported it on the kde-pim list, as I thought it was a Konntact problem. I classed it as a minor annoyance, and didn't follow it up when no-one seemed to know why it was happening. Anne signature.asc Description: This is a digitally signed message part.
Re: [Dovecot] Thunderbird Problem - What causes this?
Anne Wilson wrote: On Sunday 27 January 2008 20:49:42 Anne Wilson wrote: On Sunday 27 January 2008 15:41:04 Marc Perkel wrote: Strange problem and I'm not sure what's causing it. I'm using IMAP. A new message arives in the inbox. I see it displayed in the message list in bold. I click on the message and it looks like it's reading it by the previous message that was in the window remains and the new message is still bold (unread). However I can then click on an old message and then click on the new message again and it reads. I have reported the same behaviour in KMail over Dovecot - and someone else also reported it. That seems to suggest that it's a Dovecot problem. I should have said that I reported it on the kde-pim list, as I thought it was a Konntact problem. I classed it as a minor annoyance, and didn't follow it up when no-one seemed to know why it was happening. Anne OK - I didn't know that I might be reporting something new. Here's some more details. I leave my computer on at might (Windows XP) and it's worse in the morning when I wake up. Thunderbird's checks the email every 1 minute and it's set up to check several IMAP folders. I'm running the latest Thunderbird release as will as the latest Dovecot (not the beta versions). In the morning it is as if it can't access dovecot at all. I get an hour glass as if it is waiting for something that's never going to respond. But if I shut down Thunderbird and restart it then everything works normal for a while. My server is doing a lot of work but the load levels are low. Running Fedora 8, dual core AMD 6000+ processor with 8 gigs of ram. My experimenting with adding more authentication processes seems to help but I could be fooling myself. That's why I'm experimenting to try to figure out what's making it slow. Like someone else said, I saw something like this happen with several RCs but at the time I thought it was MBOX related. I'm not using Maildir. Hope this extra info helps.
Re: [Dovecot] Thunderbird Problem - What causes this?
Marc Perkel wrote: OK - I didn't know that I might be reporting something new. Here's some more details. I leave my computer on at might (Windows XP) and it's worse in the morning when I wake up. Thunderbird's checks the email every 1 minute and it's set up to check several IMAP folders. I'm running the latest Thunderbird release as will as the latest Dovecot (not the beta versions). In the morning it is as if it can't access dovecot at all. I get an hour glass as if it is waiting for something that's never going to respond. But if I shut down Thunderbird and restart it then everything works normal for a while. A summary of below: make sure you are actually still connected to your original session in dovecot before you suspect it: Try running a script to run 'netstat' frequently, say once a minute, and log the port numbers from the connection, example: TCPreinheitsgebot:3482mail.egr.msu.edu:993 ESTABLISHED TCPreinheitsgebot:3485mail.egr.msu.edu:993 ESTABLISHED You probably want to do this on the server side as well as the client side, just to check that if a connection is dropped, it happens on both at the same time (if not, something sounds odd!). I'm not sure if your problem happens if you only have thunderbird check the inbox, but I would expect at least one connection (inbox) to stay connected constantly without disruption. If the client side port number changes (eg. 3482), it got disconnected for some reason. For the most part, Thunderbird tries to make disconnections invisible to the user, which is nice when it works right, but misleading when something goes wrong, such as when thunderbird acts obstinant about loading messages but works when you restart. The reason I suggest this, and even if it might be a simpler case for you but similar symptoms/effect, I had a load balancer situation where connections would get dropped on the client side from a cause outside of the load balancer or server, and thunderbird would not always reconnect nicely when that happened. Literally the fault was not in the load balancer or server, but another server that stuck its nose in and effectively tried to steal the connection, making the client run into a brick wall and disconnect. The same happened to https connections. You might also try a different client such as mutt, which will make it painfully obvious if you get disconnected overnight, because it won't try to reconnect. Now on the other hand, if you can verify a single connection does stay open using the same source/dst port pair, you could start zeroing in on what is actually happening inside that connection, if it takes tcpdump on both side plus nonssl imap, etc.
Re: [Dovecot] Thunderbird Problem - What causes this?
OK - I didn't know that I might be reporting something new. Here's some more details. I leave my computer on at might (Windows XP) and it's worse in the morning when I wake up. Thunderbird's checks the email every 1 minute and it's set up to check several IMAP folders. I'm running the latest Thunderbird release as will as the latest Dovecot (not the beta versions). In the morning it is as if it can't access dovecot at all. I get an hour glass as if it is waiting for something that's never going to respond. But if I shut down Thunderbird and restart it then everything works normal for a while. Be sure that it's not just a memory leak in Thunderbird though. I find TB can gobble memory in some situations... you notice that it grinds the HD like crazy for example.. Ed W
Re: [Dovecot] Thunderbird Problem - What causes this?
On Sun, 2008-01-27 at 18:04 -0500, Adam McDougall wrote:
Try running a script to run 'netstat' frequently, say once a minute, and
log the port numbers from the connection, example:
TCPreinheitsgebot:3482mail.egr.msu.edu:993 ESTABLISHED
TCPreinheitsgebot:3485mail.egr.msu.edu:993 ESTABLISHED
Cheers! :-)
--
char *t=[EMAIL PROTECTED];
main(){ char h,m=h=*t++,*x=t+2*h,c,i,l=*x,s=0; for (i=0;il;i++){ i%8? c=1:
(c=*++x); c128 (s+=h); if (!(h=1)||!t[s+h]){ putchar(t[s]);h=m;s=0; }}}
Re: [Dovecot] Thunderbird Problem - What causes this?
on 1/27/2008 2:40 PM Marc Perkel spake the following: Anne Wilson wrote: On Sunday 27 January 2008 20:49:42 Anne Wilson wrote: On Sunday 27 January 2008 15:41:04 Marc Perkel wrote: Strange problem and I'm not sure what's causing it. I'm using IMAP. A new message arives in the inbox. I see it displayed in the message list in bold. I click on the message and it looks like it's reading it by the previous message that was in the window remains and the new message is still bold (unread). However I can then click on an old message and then click on the new message again and it reads. I have reported the same behaviour in KMail over Dovecot - and someone else also reported it. That seems to suggest that it's a Dovecot problem. I should have said that I reported it on the kde-pim list, as I thought it was a Konntact problem. I classed it as a minor annoyance, and didn't follow it up when no-one seemed to know why it was happening. Anne OK - I didn't know that I might be reporting something new. Here's some more details. I leave my computer on at might (Windows XP) and it's worse in the morning when I wake up. Thunderbird's checks the email every 1 minute and it's set up to check several IMAP folders. I'm running the latest Thunderbird release as will as the latest Dovecot (not the beta versions). Hammering the server every minute can be hard on the server. Especially if all the users do the same. I personally make users check no more than every 10 minutes automatically. In the morning it is as if it can't access dovecot at all. I get an hour glass as if it is waiting for something that's never going to respond. But if I shut down Thunderbird and restart it then everything works normal for a while. I use Xp and also leave it on all the time. Sometimes Thunderbird will seem to run out of memor, and a restart is the only thing that will help. But in my case it isn't dovecot because I can still read my mail from other clients and other machines. My server is doing a lot of work but the load levels are low. Running Fedora 8, dual core AMD 6000+ processor with 8 gigs of ram. My experimenting with adding more authentication processes seems to help but I could be fooling myself. That's why I'm experimenting to try to figure out what's making it slow. Trimming the accesses down from every minute should help this also. Like someone else said, I saw something like this happen with several RCs but at the time I thought it was MBOX related. I'm not using Maildir. Hope this extra info helps. -- MailScanner is like deodorant... You hope everybody uses it, and you notice quickly if they don't signature.asc Description: OpenPGP digital signature
