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Author Topic: LoTW delay  (Read 2490 times)
N4NYY
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« on: January 02, 2013, 07:08:33 PM »

I know this has been a sore subject and they are due to upgrade the 386 PC they are running. But I uploaded over a week ago, and no update.
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WW3QB
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Posts: 696




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« Reply #1 on: January 02, 2013, 07:11:11 PM »

That's because at this moment, LoTW is processing logs from 11d 04h 07m 14s ago.
See http://www.arrl.org/logbook-queue-status
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W2IRT
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« Reply #2 on: January 02, 2013, 08:46:51 PM »

After a week of interminable nothingness, LoTW was really good to me today. All my ZL9s, A92IO and AH0BT on 80m and A45XR on 160m. Looks like another 3-4 days until my T6LG 80m Q shows up Cheesy
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AD9DX
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« Reply #3 on: January 03, 2013, 03:53:56 AM »

I know this has been a sore subject and they are due to upgrade the 386 PC they are running. But I uploaded over a week ago, and no update.

They actually use an IBM 8088
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EX, KC9TRM, KB9IRZ
AB8MA
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Posts: 743




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« Reply #4 on: January 03, 2013, 07:56:29 AM »

I thought all they were upgrading was the disk, to solid state. Are they scraping the 8088 as well? Smiley
« Last Edit: January 03, 2013, 07:59:23 AM by AB8MA » Logged
N4NYY
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Posts: 4758




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« Reply #5 on: January 03, 2013, 08:27:37 AM »

I know this has been a sore subject and they are due to upgrade the 386 PC they are running. But I uploaded over a week ago, and no update.

They actually use an IBM 8088

I am glad someone caught the inside joke on the 386. LOL
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W6DXO
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Posts: 371




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« Reply #6 on: January 03, 2013, 09:55:10 AM »


I also hear that the two tin cans and a string was going to be replaced by a token ring network!

Well, I can see my dues and DXCC award fees are really going to start paying off.

73 de harry, W6DXO
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K9AIM
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Posts: 1027




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« Reply #7 on: January 04, 2013, 08:21:22 AM »

Quote from:  LoTW website
The ARRL Logbook of the World server is off-line for planned maintenance from 1200 to 1700 UTC Friday, 4 Jan 2013

maybe the ribbons are being cut?
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KB3LIX
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Posts: 1107




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« Reply #8 on: January 04, 2013, 09:51:09 AM »

Quote from:  LoTW website
The ARRL Logbook of the World server is off-line for planned maintenance from 1200 to 1700 UTC Friday, 4 Jan 2013

maybe the ribbons are being cut?

I thought maybe the squirrel had died.
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KD8MJR
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Posts: 2258




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« Reply #9 on: January 04, 2013, 10:45:51 AM »

In this day and age it's amazing that they have such a slow system.  Our servers at work could probably do those 14 days worth of logs in a few hours.   I wonder if they are using NT based software and thats why they are having problems upgrading.
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N7SMI
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Posts: 331




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« Reply #10 on: January 04, 2013, 11:33:58 AM »

The site has been updated to extend the down time 3 more hours to 2000 UTC. I would certainly hope they are not running on NT - though that would definitely explain a lot.
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N4CR
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Posts: 1666




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« Reply #11 on: January 04, 2013, 04:28:36 PM »

Probably more difference than the hardware is the operating system and database software they are using. There have been enormous strides in efficiency in databases in the last decade. Moving to late model 64 bit servers on Windows 2008 running SQL 2008 with 32G of ram would rip through those logs in a couple of hours.

But that might also entail a complete rewrite of the software.

I have not seen any details released on what they have today, so it's impossible to make much of a reality based suggestion.
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73 de N4CR, Phil

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AB8MA
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Posts: 743




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« Reply #12 on: January 04, 2013, 05:54:01 PM »

From 2013-01-05 00:02:16 until 2013-01-05 01:02:01 they have lost ground, processing only about 21 minutes of uploads from 2012-12-24.

Could be that this outage had absolutely nothing to do with any hardware change?
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N7SMI
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Posts: 331




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« Reply #13 on: January 04, 2013, 07:13:04 PM »

The rate of new QSOs into LoTW for the last three hours has been about double the average for the last several weeks. And the rate in which files are added is about 5 times the average rate. One would expect the new file rate to be less than the new QSO rate because I'm sure there's LOADS of duplicates in the queue.

It's hard to say for sure with just a few hours of data, but it sure looks to me like it's running quite a bit faster.
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N7SMI
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Posts: 331




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« Reply #14 on: January 04, 2013, 09:12:07 PM »

Yes, definitely much improvement. For the week starting Dec. 24th, the average was 6994 new QSOs (1.9/second) and 86 new log files processed per hour. For the last 5 hours, the average has been 16695 QSOs per hour (4.6/second) and 289 log files per hour. In the last hour, it processed 78,000 new QSOs (22/second) alone!

Since the upgrade, the queue has dropped by almost 500,000 QSOs.

Things are definitely faster, and I'd predict that at this rate, it should work through the entire backlog in fairly short order - probably several days or maybe a week. It's hard to say for sure because you can't know the rate at which QSOs/logs are added to the queue, but with big contests the next 3 weekends, I think this is very good news.
« Last Edit: January 04, 2013, 09:23:12 PM by N7SMI » Logged
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