Stalled downloads

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Richard Haselgrove
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Message 95852 - Posted: 16 Feb 2020, 11:27:12 UTC - in response to Message 95851.  

Which version of BOINC?
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Richard Haselgrove
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Message 95854 - Posted: 16 Feb 2020, 12:27:35 UTC - in response to Message 95853.  
Last modified: 16 Feb 2020, 12:58:29 UTC

Which operating system? And if it's Linux, how was it installed?

If Linux, try variations on

journalctl --boot=-1 --unit=boinc-client
If Windows, file 'stdoutdae.txt' in data directory.
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Profile Dave
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Message 95856 - Posted: 16 Feb 2020, 14:00:40 UTC - in response to Message 95853.  

Happens on all 4 of my computers. Only with Rosetta@home. Others experiencing the same thing judging by their forums.


If already raised on the Rosetta forums, my guess is you will just have to wait till someone kicks the appropriate server.
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Message 95857 - Posted: 16 Feb 2020, 14:09:13 UTC - in response to Message 95855.  

Unfortunately, the log doesn't show you cancelling the download - which is probably the log's fault, not yours.

Two suggestions:

1) if you see it happening, set <http_debug> in Event Log options, and retry the transfer - find out what's happening behind that 'transient HTTP error'.
2) make a careful and exact note of the file name in question. Cancel the download, and make sure it disappears from the transfers tab. Restart the client, and if the 'stalled download' message reappears, have a very careful 'read only' (no edits) peek inside client_state.xml - same folder. Find the reference (if any) to the file you cancelled, and post the whole of the

<file>
...
</file>
section it's enclosed in.
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Richard Haselgrove
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Message 95858 - Posted: 16 Feb 2020, 14:10:29 UTC - in response to Message 95856.  

Happens on all 4 of my computers. Only with Rosetta@home. Others experiencing the same thing judging by their forums.
If already raised on the Rosetta forums, my guess is you will just have to wait till someone kicks the appropriate server.
Cancel and request new work shouldn't be prevented - that sounds more like a client issue to me.
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Richard Haselgrove
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Message 95861 - Posted: 16 Feb 2020, 15:33:08 UTC - in response to Message 95860.  

Your log said

16-Feb-2020 10:30:15 [Rosetta@home] Not requesting tasks: some download is stalled
That's entirely a client decision - the server isn't involved at all (and can't over-rule it). The problem seems to be that the download isn't completely forgotten about when it's cancelled. We need to find out why not.
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Message 95863 - Posted: 16 Feb 2020, 16:37:45 UTC - in response to Message 95862.  

Well, I thought I'd try and see what happens for myself. Allowed new work for an old test attachment - got four new Rosetta v4.07 tasks. All downloaded cleanly, although there wasn't a 3KB file amongst them (nothing between 1KB FLAGS and 7KB robetta.zip files). Download server was slow nearly 20 minutes for the database file - my internet link is a lot faster than theirs). Nothing obviously wrong in client_state.xml

They'll run in due course - I'll watch what happens.
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Message 95865 - Posted: 16 Feb 2020, 17:09:23 UTC - in response to Message 95864.  

My line is running at 71.17 Mbps, but it still took 20 minutes.

The files I've seen stick always seem to be associated with WUs with a name beginning multistate, like http://boinc.bakerlab.org/rosetta/workunit.php?wuid=1010934932
Thanks - it's helpful to know that. Mine all start 'rb_02'
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Message 95874 - Posted: 17 Feb 2020, 11:45:17 UTC

Just had another 'rb_' download. This time it allocated me the 64-bit version of the app, so two more big downloads.

Both of them stopped at 99.65%. That sounds to me like a dropped packet somewhere in the middle, and a wait for the resend.

I tried the usual trick for that - suspend networking for a few seconds via the 'Activity' menu in BOINC Manager, and then revert to networking 'always'. Worked a treat - the task is now ready to run.
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Message 95880 - Posted: 17 Feb 2020, 19:12:19 UTC - in response to Message 95879.  

Sorry - no, I didn't. (The morning was getting a bit busy with other tests around that time). I'll try and remember next time.

It did remind me of SETI message 1343415 from 2013: SETI was having major problems with stalled downloads at the time, and somebody found RFC 1323 - an official Internet standard for dealing with congested internet links. Linux and OS X have it enabled by default: Windows supports it, but it has to be enabled manually. It worked a treat for the SETI problems at that time.

I haven't looked at it again for Windows 10. It works in Windows 7, and is enabled on this machine - so it didn't prevent this morning's glitch. But it's worth knowing about.
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Message boards : Questions and problems : Stalled downloads

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