strange "Deferring communication" (low priority)

Anonymous
Topic 13130

Quote:

On two 4.19 clients I have a somehow misguided message "Deferring communication ..." just directly after a *successful* scheduler contact.

Both PCs work just fine, no trouble contacting the Einstein servers most of the time, just this strange message when there shouldn't be any message at all.

Both PCs have in common, that they are behind a Squid with authentication. I cannot compare to a system with no proxy as I temporary switched most computers to a non-BOINC-project. Both PCs started doing this not too long ago but I cannot tell an exact date.

As there are no negative side effects, this doesn't require fixing, but maybe it would be good to know about the behaviour when errors pop up that might be related.

You are probably seeing something related to a change that I made to the server-side scheduler a day ago. The scheduler now asks the client to wait at least 61 seconds after each contact, before contacting the scheduler again. This is why you are seeing the 'defered' messages. But hopefully everything is working OK!

Bruce

Bruce Allen
Bruce Allen
Joined: 15 Oct 04
Posts: 958
Credit: 170,849,008
RAC: 0

strange "Deferring communication" (low priority)

Quote:
Quote:
You are probably seeing something related to a change that I made to the server-side scheduler a day ago. The scheduler now asks the client to wait at least 61 seconds after each contact, before contacting the scheduler again. This is why you are seeing the 'defered' messages. But hopefully everything is working OK!

There's no "problem" with this as far as I can tell, but after every Einstein update, 4.72 says "communication deferred 00:00:59" and counts down to 0, then does nothing, for no reason - just annoying.

Bill, the scheduler is (and has been, for quite some time) programmed to REJECT scheduler contacts that arrive sooner than 60 secs after the previous scheduler contact. So the only thing that has happened with this change is that now your client is telling you (explicitly) not to try to communicate before that time.

Bruce

Bruce Allen
Bruce Allen
Joined: 15 Oct 04
Posts: 958
Credit: 170,849,008
RAC: 0

RE: RE: RE: There's no

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There's no "problem" with this as far as I can tell, but after every Einstein update, 4.72 says "communication deferred 00:00:59" and counts down to 0, then does nothing, for no reason - just annoying.

Bill, the scheduler is (and has been, for quite some time) programmed to REJECT scheduler contacts that arrive sooner than 60 secs after the previous scheduler contact. So the only thing that has happened with this change is that now your client is telling you (explicitly) not to try to communicate before that time.

Understood, just pointing out that no other project has this message, it LOOKS like you're trying to tell me there is a communication problem and you're going to try again in 59 seconds - when in reality if I didn't plan on hitting 'update' again, I would have no error. You're saying "don't do that" if I planned on doing it or not. If it didn't show up on the "Projects" tab, if it was only a message, then it wouldn't be an issue.

If you haven't seen what I'm saying, run any 4.72 (or up?) version, hit "Update" on the projects tab. You'll see "scheduler request pending" for a moment, then, when the request has been successful, you'll see "Communication deferred 00:00:xx" - which LOOKS like there was a problem and it's having to try again.

I can change the 'Communication deferred...' message. What do you suggest?

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