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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Mon May 22, 2017 8:23 am 
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ericcarlson - FlightAware user avatar

Joined: Sun Jan 01, 2006 5:00 pm
Posts: 150
You are seeing delays in stats processing. Every receiver is unique in its data volume so it is difficult for us to evenly divide up the work across our hardware. If the hardware processing your stats happens to be busier than average then you may see some delays during the busiest times. It generally catches up within a few hours if it gets a little behind.


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Fri May 26, 2017 2:46 pm 
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triggers - FlightAware user avatar

Joined: Sun Dec 21, 2014 2:37 pm
Posts: 248
Location: Oxfordshire, UK
I'm having problems with both my feeders today. 12366 and 15162. They are about 30km away from each other so unlikely to be a local failure. I've had a quick trawl around some other feeders and they all seem OK.
https://uk.flightaware.com/adsb/stats/user/triggers

[Edit] just found another one https://uk.flightaware.com/adsb/stats/user/tonyscanga


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Fri May 26, 2017 4:27 pm 
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ExCalbr - FlightAware user avatar

Joined: Wed Nov 23, 2005 2:00 pm
Posts: 595
triggers wrote:
I'm having problems with both my feeders today. 12366 and 15162. They are about 30km away from each other so unlikely to be a local failure. I've had a quick trawl around some other feeders and they all seem OK.
https://uk.flightaware.com/adsb/stats/user/triggers

[Edit] just found another one https://uk.flightaware.com/adsb/stats/user/tonyscanga


I have two feeders. The one with less activity is up-to-date. The one with more activity is about 5 hours behind. Both feeders are located within feet of each other. I don't think the issue has anything to do with local conditions.


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Fri May 26, 2017 4:34 pm 
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ExCalbr - FlightAware user avatar

Joined: Wed Nov 23, 2005 2:00 pm
Posts: 595
ExCalbr wrote:
triggers wrote:
I'm having problems with both my feeders today. 12366 and 15162. They are about 30km away from each other so unlikely to be a local failure. I've had a quick trawl around some other feeders and they all seem OK.
https://uk.flightaware.com/adsb/stats/user/triggers

[Edit] just found another one https://uk.flightaware.com/adsb/stats/user/tonyscanga


I have two feeders. The one with less activity is up-to-date. The one with more activity is about 5 hours behind. Both feeders are located within feet of each other. I don't think the issue has anything to do with local conditions.


Hmm. The 30-day ranking says live for the one up-to-date, but doesn't for the other one. How can I confirm if data is actually making it to FA? I assumed it was, because I am getting plenty of MLAT planes on my local view. I assume those would be missing if my feeder were not actually live.

Edit: seems back to normal now.


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Sat May 27, 2017 11:38 am 
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davewill2010 - FlightAware user avatar

Joined: Sun May 14, 2017 11:24 am
Posts: 30
My site (43072) has had no hourly reports since 12 noon UK BST and my reported aircraft hasn't incremented sine then even though my Piaware is pushing data to it. Same thing happened Yesterday and no hourly reports or increments between noon and around 23:00 and then everything caught up.


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Sat May 27, 2017 4:00 pm 
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myalias - FlightAware user avatar

Joined: Thu Mar 24, 2016 9:15 pm
Posts: 31
Also experiencing a stats outage here. Logs show data is being pushed to FA.

Stats are low for the last couple of days, with nothing for the last seven hours.


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Sat May 27, 2017 4:55 pm 
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antstrafer - FlightAware user avatar

Joined: Sat Sep 03, 2016 1:21 pm
Posts: 1
3 or 4 sites near me are reporting no data rec since 8 am today stats show no contact for 9 hours today. all local data indicates transport to FA Log etc
Why just some sites show lost data? :shock:


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Sat May 27, 2017 6:20 pm 
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FlightAware Staff
obj - FlightAware user avatar

Joined: Tue Sep 30, 2014 7:14 pm
Posts: 3672
antstrafer wrote:
Why just some sites show lost data? :shock:

Incoming data is partitioned using the site identifier before being processed; some partitions can be up to date while others are behind.


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Sat May 27, 2017 6:22 pm 
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ExCalbr - FlightAware user avatar

Joined: Wed Nov 23, 2005 2:00 pm
Posts: 595
obj wrote:
antstrafer wrote:
Why just some sites show lost data? :shock:

Incoming data is partitioned using the site identifier before being processed; some partitions can be up to date while others are behind.


Yeah, one of mine is up-to-date. The other is at least 10 hours behind. Seems like a load balancing issue.


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Sun May 28, 2017 1:34 am 
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davewill2010 - FlightAware user avatar

Joined: Sun May 14, 2017 11:24 am
Posts: 30
davewill2010 wrote:
My site (43072) has had no hourly reports since 12 noon UK BST and my reported aircraft hasn't incremented sine then even though my Piaware is pushing data to it. Same thing happened Yesterday and no hourly reports or increments between noon and around 23:00 and then everything caught up.


Just them same as Friday my stats "caught up" overnight at some point and now no reports are missing.

I'm guessing this is going to be a regular occurrence until some changes are made to load balance the servers or is there a bigger issue here?


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Sun May 28, 2017 4:21 pm 
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kimschroder - FlightAware user avatar

Joined: Mon Aug 22, 2016 7:48 pm
Posts: 2
the stats show 9 hours without receiving reports from my receiver and it has been running like a baby all the time!! that is so ...!!


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Sun May 28, 2017 5:19 pm 
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ExCalbr - FlightAware user avatar

Joined: Wed Nov 23, 2005 2:00 pm
Posts: 595
davewill2010 wrote:
davewill2010 wrote:
My site (43072) has had no hourly reports since 12 noon UK BST and my reported aircraft hasn't incremented sine then even though my Piaware is pushing data to it. Same thing happened Yesterday and no hourly reports or increments between noon and around 23:00 and then everything caught up.


Just them same as Friday my stats "caught up" overnight at some point and now no reports are missing.

I'm guessing this is going to be a regular occurrence until some changes are made to load balance the servers or is there a bigger issue here?


I'm starting to get a feeling it's something else. I'm seeing the same thing happening today that happened yesterday. The updates stopped updating at around 8AM local time. If it's like yesterday, they'll automagically fill in suddenly near midnight UT. I'll check back in an hour and a half. :)

Edit: So much for that idea. It's now 14 hours of no updates, and 3 hours after date change.
Edit again: Presto chango - now it's up-to-date. Kinda seems weird to me that it is hours behind all day, then suddenly all caught up. You'd think there'd be some progress.


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Mon May 29, 2017 7:42 am 
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davewill2010 - FlightAware user avatar

Joined: Sun May 14, 2017 11:24 am
Posts: 30
Since Friday my hourly reports stop coming in and updating my aircraft count at noon U.K. BST each day and then sometime during the night everything catches back up and they then work perfectly up till noon the next day again. Wash rinse, repeat.....


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Tue May 30, 2017 8:26 am 
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FlightAware Staff
ericcarlson - FlightAware user avatar

Joined: Sun Jan 01, 2006 5:00 pm
Posts: 150
As I noted above, this is a known issue. We are working on improving the performance so it stays caught-up uniformly across all feeder sites throughout the day. There is a busy part of the day when global air traffic peaks and it tends to be during these hours that we run behind for some sites.


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Tue May 30, 2017 8:45 am 
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ExCalbr - FlightAware user avatar

Joined: Wed Nov 23, 2005 2:00 pm
Posts: 595
ericcarlson wrote:
As I noted above, this is a known issue. We are working on improving the performance so it stays caught-up uniformly across all feeder sites throughout the day. There is a busy part of the day when global air traffic peaks and it tends to be during these hours that we run behind for some sites.


That was the pattern I noticed before, but this new pattern seems different, unless the busy part of the day is from sun-up to 10PM central time.


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Tue May 30, 2017 9:43 pm 
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myalias - FlightAware user avatar

Joined: Thu Mar 24, 2016 9:15 pm
Posts: 31
ericcarlson wrote:
As I noted above, this is a known issue. We are working on improving the performance so it stays caught-up uniformly across all feeder sites throughout the day. There is a busy part of the day when global air traffic peaks and it tends to be during these hours that we run behind for some sites.


It seems my stats have never caught up. Is the system more than a week behind?


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Wed May 31, 2017 1:29 am 
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Harrie45 - FlightAware user avatar

Joined: Sat Aug 23, 2014 6:03 am
Posts: 35
There must be something wrong with the top users ranking:
CASSIMA 2008 sites, 9 days feeding
Alan Henney 1429 sites, 8 days feeding
772floridadsb 788 sites, 19 days feeding
HelilineHelicopters 695 sites, 30 days feeding


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Sat Jun 03, 2017 8:09 pm 
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FlightAware Member
ExCalbr - FlightAware user avatar

Joined: Wed Nov 23, 2005 2:00 pm
Posts: 595
Harrie45 wrote:
There must be something wrong with the top users ranking:
CASSIMA 2008 sites, 9 days feeding
Alan Henney 1429 sites, 8 days feeding
772floridadsb 788 sites, 19 days feeding
HelilineHelicopters 695 sites, 30 days feeding


What are you looking at?


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Sun Jun 04, 2017 2:36 am 
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Harrie45 - FlightAware user avatar

Joined: Sat Aug 23, 2014 6:03 am
Posts: 35
ExCalbr wrote:

What are you looking at?


http://flightaware.com/adsb/stats/ Top Users ranking.
There are users with hundreds, even thousands of sites.


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Sun Jun 04, 2017 9:02 am 
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FlightAware Member
ExCalbr - FlightAware user avatar

Joined: Wed Nov 23, 2005 2:00 pm
Posts: 595
Harrie45 wrote:
ExCalbr wrote:

What are you looking at?


http://flightaware.com/adsb/stats/ Top Users ranking.
There are users with hundreds, even thousands of sites.


I still don't know what you are seeing. When I look at that page, I see a summary for all at the top:
11,157 sites
9401 participants
167 countries
70,466,608 positions/hour
221 sites added last 7 days

Then, for each user, I see:

rank, username, rank total, ads-b aircraft seen, mlat aircraft seen other aircraft seen, nearest locaiton

Where are you seeing quantities of sites per user?

Edit: OK. I see now. On the top, those rectangles are tabs you can click, and you have to click the second tab.


Last edited by ExCalbr on Mon Jun 05, 2017 9:21 am, edited 1 time in total.

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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Mon Jun 05, 2017 8:36 am 
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frankhanratty - FlightAware user avatar

Joined: Wed Jul 15, 2015 11:33 pm
Posts: 7
Wow!

Harrie45 is correct.

The new Stats for these User IDs are now:

CASSIMA 2108 sites, 14 days feeding
Alan Henney 1494 sites, 13 days feeding
772floridadsb 829 sites, 24 days feeding
HelilineHelicopters 780 sites, 30 days feeding

Go to the link given and then select Top User Ranking from the drop down menu.


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Mon Jun 05, 2017 8:59 am 
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ericcarlson - FlightAware user avatar

Joined: Sun Jan 01, 2006 5:00 pm
Posts: 150
The issue with the "Top Users" page should be addressed later today.


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Tue Jun 06, 2017 12:43 am 
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invergordon - FlightAware user avatar

Joined: Wed Jan 01, 2014 4:18 pm
Posts: 110
Here's one for the script writers.

My site coverage graph shows no ranges today over 200nm but the flights with positions table has one flight at 211. I'm assuming that the table value is nautical miles as well and if so why doesn't the coverage graph include that range?

Image


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Wed Jun 07, 2017 11:43 am 
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rosen85 - FlightAware user avatar

Joined: Wed Apr 06, 2016 8:40 am
Posts: 58
Location: Kozloduy
Can someone explain what has happened?
I am a Flight Aware feeder since 5 April 2016, and that number stayed on my profile just the way it was.
And today I found that somehow according to Flight Aware I had joined on the 3th of May 2016.
How did that happen?
Take a look at the two screenshots. The left one is with the correct date, and the right one is from today.
Image Image


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 Post subject: Re: What's up with ADS-B Statistics?
PostPosted: Wed Jun 07, 2017 12:16 pm 
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FlightAware Staff
ericcarlson - FlightAware user avatar

Joined: Sun Jan 01, 2006 5:00 pm
Posts: 150
rosen85 wrote:
Can someone explain what has happened?
I am a Flight Aware feeder since 5 April 2016, and that number stayed on my profile just the way it was.
And today I found that somehow according to Flight Aware I had joined on the 3th of May 2016.
How did that happen?
Take a look at the two screenshots. The left one is with the correct date, and the right one is from today.
Image Image


{edited} The new stats site is showing your joined date as May 3 because the site is a FlightFeeder. The intent is to show the FlightFeeder as "joining" when you first installed it. However, this is an older FlightFeeder that predates an internal software change when we improved our tracking of FlightFeeder requests. This should be correct for newer FlightFeeders but represents an edge case for older FlightFeeders. I will see if we can make a one-off correction here.


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