Slow WU downloads & failed transfer [140.163.4.231]

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Aurum
Posts: 301
Joined: Sat Oct 03, 2015 3:15 pm
Location: The Great Basin

Re: Slow WU downloads & failed transfer [140.163.4.231]

Post by Aurum » Sat Jun 23, 2018 3:42 am

As WUs finish I'm not getting any new work, just as shown above.
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bollix47
Posts: 3483
Joined: Sun Dec 02, 2007 5:04 am
Hardware configuration: 1. Dual 6 core Xeons @ 2.66Ghz;16 gig;Ubuntu 64 bit;970;v7-gpu

2. Dual 4 core Xeons @ 2.54Ghz;12 gig;Ubuntu 64 bit;1070;v7-gpu

3. AMD 8350 @ 4Ghz;4 gig;1070;Ubuntu 64 bit;v7-gpu

4. i5 7600K @ 3.8Ghz;8 gig;960+1060;Win 10 pro 64 bit;v7-gpu

5. 4 x 6274 @ 2.2Ghz;16 gig;Linux Ubuntu 64 bit;v7-cpu:54;

6. G3258 @ 3.2Ghz;8 gig;980;Ubuntu 64 bit;v7-gpu

7. Ryzen 5 2600x @ 3.9Ghz;16 gig;1080;Ubuntu 64 bit;v7-gpu

8. i7 940 @ 2.94Ghz;4 gig;980ti;Ubuntu 64 bit;v7-gpu

9. Predator laptop - win 10 - 1070
Location: Canada

Re: Slow WU downloads & failed transfer [140.163.4.231]

Post by bollix47 » Sat Jun 23, 2018 10:53 am

Currently, there are a number of server changes happening. As a result of this there are redirects and domain name servers (DNS) that may be stale in your various caches. How you clear those caches depend on the o/s or browser being used.

Other problems may be caused by security software needing to be updated with new exceptions ( you can test that by temporarily disabling that software ) or DNS servers not being updated in a timely manner. You may find that your problems subside as DNS servers get updated with new information but that depends on the ones you use. You could try changing your DNS servers to google ( 8.8.8.8,8.8.4.4 ). The only reason I suggest those is that I use them and am not having any problems getting work.

If you have trouble testing/changing any of the above let us know and we'll try to assist.

Here is a very recent snippet from one of my logs getting a new GPU WU:

Code: Select all

10:25:15:WU00:FS00:Connecting to 65.254.110.245:8080
10:25:15:WU00:FS00:Assigned to work server 140.163.4.231
10:25:15:WU00:FS00:Requesting new work unit for slot 00: RUNNING gpu:0:GP104 [GeForce GTX 1070] 6463 from 140.163.4.231
10:25:15:WU00:FS00:Connecting to 140.163.4.231:8080
10:25:16:WU00:FS00:Downloading 5.42MiB
10:25:17:WU00:FS00:Download complete
10:25:17:WU00:FS00:Received Unit: id:00 state:DOWNLOAD error:NO_ERROR ...

Aurum
Posts: 301
Joined: Sat Oct 03, 2015 3:15 pm
Location: The Great Basin

Re: Slow WU downloads & failed transfer [140.163.4.231]

Post by Aurum » Sat Jun 23, 2018 11:21 am

I've been using 8.8.8.8 & 8.8.4.4 on all my computers for a long time.
It doesn't seem to be a problem for my Win7 computers. Many but not all of my Linux Mint computers are affected.
I had previously disabled hibernation when I installed Linux but since a recent update it has returned to the shutdown menu. The same command no longer removes hibernation:

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sudo mv -v /etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla /
I've rebooted my router twice today and modem once.
I'm a Linux novice. Since these are headless DC rigs and not desktop PCs I also uninstalled several software packages Mint came with: Libre Office, Hex Chat, Pidgin Messenger, Simple Scan, Thunderbird Mail and Rhythmbox. The first time I did this I also uninstalled Graphics Tablet and had massive problems. Probably broke dependencies I do not know how to fix so I did a fresh Mint install and used the rule of thumb that if what I uninstalled had names that included Hexchat it was ok. If there was another name in the list of to be deleted packages then I won't touch that program.
Suggestions welcome.
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bollix47
Posts: 3483
Joined: Sun Dec 02, 2007 5:04 am
Hardware configuration: 1. Dual 6 core Xeons @ 2.66Ghz;16 gig;Ubuntu 64 bit;970;v7-gpu

2. Dual 4 core Xeons @ 2.54Ghz;12 gig;Ubuntu 64 bit;1070;v7-gpu

3. AMD 8350 @ 4Ghz;4 gig;1070;Ubuntu 64 bit;v7-gpu

4. i5 7600K @ 3.8Ghz;8 gig;960+1060;Win 10 pro 64 bit;v7-gpu

5. 4 x 6274 @ 2.2Ghz;16 gig;Linux Ubuntu 64 bit;v7-cpu:54;

6. G3258 @ 3.2Ghz;8 gig;980;Ubuntu 64 bit;v7-gpu

7. Ryzen 5 2600x @ 3.9Ghz;16 gig;1080;Ubuntu 64 bit;v7-gpu

8. i7 940 @ 2.94Ghz;4 gig;980ti;Ubuntu 64 bit;v7-gpu

9. Predator laptop - win 10 - 1070
Location: Canada

Re: Slow WU downloads & failed transfer [140.163.4.231]

Post by bollix47 » Sat Jun 23, 2018 11:36 am


OntosChalmer
Posts: 22
Joined: Sun Jun 03, 2018 11:13 am

Re: Slow WU downloads & failed transfer [140.163.4.231]

Post by OntosChalmer » Sat Jun 23, 2018 12:31 pm

Wow, you're quite fortunate, having a connection able to download a GPU WU in a matter of a second. I tried flushing my DNS Cache. No improvement in speed or connectivity.
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toTOW
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Re: Generally Slow GPU WU download speeds (And transfer erro

Post by toTOW » Sat Jun 23, 2018 1:45 pm

OntosChalmer wrote:1. My ISP uses a proxy by default.
This is often the root cause of any FAHClient connectivity issues ... :(

Other most common cause being security software needing exceptions to be added to leave FAH alone.
Folding@Home beta tester since 2002. Folding Forum moderator since July 2008.

FAH-Addict : latest news, tests and reviews about Folding@Home project.

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OntosChalmer
Posts: 22
Joined: Sun Jun 03, 2018 11:13 am

Re: Slow WU downloads & failed transfer [140.163.4.231]

Post by OntosChalmer » Sat Jun 23, 2018 2:36 pm

Correction. I used a proxy checking website, and there's... no proxy server?
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Aurum
Posts: 301
Joined: Sat Oct 03, 2015 3:15 pm
Location: The Great Basin

Re: Slow WU downloads & failed transfer [140.163.4.231]

Post by Aurum » Sat Jun 23, 2018 3:51 pm

bollix47 wrote:Try flushing your dns cache: https://tecadmin.net/flush-dns-cache-ubuntu/
That seems to work. Have to move a monitor from rig to rig since NoMachine works so slow. Did this:

Code: Select all

sudo /etc/init.d/dns-clean start
sudo service network-manager restart
So if flushing the DNS cache is good is disabling local caching even better???
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bollix47
Posts: 3483
Joined: Sun Dec 02, 2007 5:04 am
Hardware configuration: 1. Dual 6 core Xeons @ 2.66Ghz;16 gig;Ubuntu 64 bit;970;v7-gpu

2. Dual 4 core Xeons @ 2.54Ghz;12 gig;Ubuntu 64 bit;1070;v7-gpu

3. AMD 8350 @ 4Ghz;4 gig;1070;Ubuntu 64 bit;v7-gpu

4. i5 7600K @ 3.8Ghz;8 gig;960+1060;Win 10 pro 64 bit;v7-gpu

5. 4 x 6274 @ 2.2Ghz;16 gig;Linux Ubuntu 64 bit;v7-cpu:54;

6. G3258 @ 3.2Ghz;8 gig;980;Ubuntu 64 bit;v7-gpu

7. Ryzen 5 2600x @ 3.9Ghz;16 gig;1080;Ubuntu 64 bit;v7-gpu

8. i7 940 @ 2.94Ghz;4 gig;980ti;Ubuntu 64 bit;v7-gpu

9. Predator laptop - win 10 - 1070
Location: Canada

Re: Slow WU downloads & failed transfer [140.163.4.231]

Post by bollix47 » Sat Jun 23, 2018 5:42 pm

Local caching should speed up DNS searches, so no, I would not disable it. You could add the DNS flush to one of your startup files like rc.local so that any time you reboot you'll produce a fresh cache but in all likelihood you will not see this problem again any time soon and usually it sorts itself out like you've already seen on some of your systems.
Although we've seen a few reports of this problem considering there are thousands of folders the numbers having a problem are quite low. Personally, I had one problem from eight systems and a flush cured that one.

Aurum
Posts: 301
Joined: Sat Oct 03, 2015 3:15 pm
Location: The Great Basin

Re: Slow WU downloads & failed transfer [140.163.4.231]

Post by Aurum » Sun Jun 24, 2018 5:28 am

I lost almost half my production for almost a day. Too bad there seems to be no way for F@H to send out a message recommending a DNS cache flush when they reconfigure.
Given that my rigs are dedicated headless computers running F@H 24x7 and hopefully rarely need rebooting I don't see why I even want to have a local DNS cache. After reading about DNS caches I see no benefit and only risk for a dedicated distributed computing rig. https://www.lifewire.com/what-is-a-dns-cache-817514
I'll be disabling my DNS caching. For Linux:

Code: Select all

sudo vi /etc/NetworkManager/NetworkManager.conf
Comment out:
#dns=dnsmasq
sudo service network-manager restart
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bruce
Posts: 22470
Joined: Thu Nov 29, 2007 10:13 pm
Location: So. Cal.

Re: Slow WU downloads & failed transfer [140.163.4.231]

Post by bruce » Sun Jun 24, 2018 5:32 am

This looks like a DNS failure associated with your ISP.

What you should be getting is 65.254.110.245 assign1.foldingathome.org

Are you able to open either http://65.254.110.245 and/or http://assign1.foldingathome.org? Both work for me.

By the way, we started talking about slow data transfer and failures associated with a specific WS and now you're talking about a DNS failure -- not knowing where to find an AS. These are two absolutely different problems.

OntosChalmer
Posts: 22
Joined: Sun Jun 03, 2018 11:13 am

Re: Slow WU downloads & failed transfer [140.163.4.231]

Post by OntosChalmer » Sun Jun 24, 2018 11:53 am

Code: Select all

11:40:49:WU00:FS00:Connecting to 128.252.203.2:8080
11:46:19:WU02:FS00:Downloading 4.53MiB
11:46:31:WU02:FS00:Download 45.55%
11:46:43:WU02:FS00:Download 46.93%
11:46:55:WU02:FS00:Download 48.31%
Another WU assignment server. What confuses me is that it downloads so much % in 12 seconds, then slows down to a crawl.
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EXT64
Posts: 330
Joined: Mon Apr 09, 2012 11:54 pm

Re: Slow WU downloads & failed transfer [140.163.4.231]

Post by EXT64 » Sun Jun 24, 2018 4:10 pm

I am seeing the same. Typically a few times a day I have to manually kill the client and restart it to get a hung upload to reset. Typically within 1 try (sometimes 2) after a client restart it will upload instantly.

Aurum
Posts: 301
Joined: Sat Oct 03, 2015 3:15 pm
Location: The Great Basin

Re: Slow WU downloads & failed transfer [140.163.4.231]

Post by Aurum » Sun Jun 24, 2018 4:18 pm

bruce wrote:Are you able to open either http://65.254.110.245 and/or http://assign1.foldingathome.org? Both work for me.
They both work for me.
bruce wrote:By the way, we started talking about slow data transfer and failures associated with a specific WS and now you're talking about a DNS failure -- not knowing where to find an AS. These are two absolutely different problems.
Who cares?
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bruce
Posts: 22470
Joined: Thu Nov 29, 2007 10:13 pm
Location: So. Cal.

Re: Slow WU downloads & failed transfer [140.163.4.231]

Post by bruce » Sun Jun 24, 2018 7:01 pm

Aurum wrote:Who cares?
People who follow the Forum Policies do.
Please pay attention to the intended topic of a thread and don't post off topic. Use the new topic button to start a new thread instead.
We try to be a helpful site for everyone, even if they're not as smart as you or if their native language is other than English. If folks are looking for a discussion of a DNS problem for the AS, they shouldn't have to open a topic entitled Slow downloads & failed transfer associated with a specific Work Server.

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