RoundCube errors under server load
Sometimes when our server is under load (load of 6~ where 4 is considered high) we get some issues with RoundCube. I'm not familiar enough with the inner-workings of RoundCube, but i just wanted to confirm this is just related to the load and not a more serious issue. During the day this happened, the server had about 6 spikes above a load of 2. Below is a comment I heard from a user who sent me this screenshot:
"I have been getting them again. Various ones. The last two days. Sever today. I am guessing if you check the load on that server it is high. I am thinking the connection to the server is being broken because it is under pressure. THIS time I managed to get a screen shot of one of them for you. It went away for awhile, which is why I have not brought it up, but this week it has been a PITA as it will not send messages, will take 2 minutes to send a message, Can take up to 3 minutes to DISPLAY a message when I switch from one to the other, and this error comes up when I choose an address to put into the email. NONE of this is consistent, but today, maybe 5 times now. "
(Adding text version of the message so it shows up for searches)
Sync of CardDAV addressbook cPanel CardDAV (cPanel CardDAV Address Book) failed: Expected Multistatus HTTP request was not successful (401 Unauthorized): Authorization Required
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Adding a screenshot of the server load, the comment was sent around 2pm
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Hey there! Sure, that seems more than reasonable to me. If the load is high, any operation on the server could be at risk of not completing properly, and in this case it just happens to be a noticeable one for users inside Roundcube.
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