Coordinates mixing in Traccar 4.1

bublik56 years ago

Looks like some devices replace each other in reports. So I can see a jump over 2000 km and some time later - backward jump.
Can't find any info about this bug.

http://prntscr.com/lcpcwx

Anton Tananaev6 years ago

Connection id is the same, so it should be the same device.

bublik56 years ago

Here is the scenario - I have at least one device (id Men...) which has been enabled on android device for a week in A-city. I struggled with updates from 3.17 to 4.1 and succeeded with a clean installation. Then I added all the devices to server again. And then I see those jumps for ALL active devices (devices located in B-city 2000 km away from A-city) jump to A-city. And that one device id Men... jumps to B-city. Some time later they jump home in random logic.

Maybe the problem will disappear if I restart that device...

bublik56 years ago

Oh, I see the word "swapping" is better than "jumping" )
https://www.traccar.org/forums/topic/2-devices-swapping/#post-36802

I'll try
Use "decoder.ignoreSessionCache" configuration parameter

And if that works, when should I enable this option back? with 4.2 release?

bublik56 years ago

that option didn't help.
I have only two active devices and they jump between two cities in random order...
http://prntscr.com/lczfzu
Sometimes they both appear in one city, sometimes they both appear in another one and sometimes swap, sometimes ok
How can I help you to check that?

Anton Tananaev6 years ago

You need to provide some reasonable proof that there is a problem.

bublik56 years ago

I've found a misterious part of traccar log
http://prntscr.com/ld2qry

Device MamaLenovo is unique, that ID has never been entered anywhere and this device was online shortly only, and now it has jumped to another device location over 2000km away.

I can send you whole log somewhere or I can record a video from website for you

t.me/ atrant
if you can

bublik56 years ago

About "2000km away". I have only one device there, but today every other enabled device "visited"that city and that far-far-away device swapped with other devices, too

bublik56 years ago

everything works fine if there is the one device online. If i have two devices online they make crazy routes and swap in random order
(orange and green straight lines show swapping)

http://prntscr.com/ldi5u5

What can I do to prove that or to help to fix?

Anton Tananaev6 years ago

I need to see some kind of proof that it's a server issue. Usually it means providing relevant log fragments.

bublik56 years ago

where can I put full log for you? There is one file only in 4.1
So I don't need to mask coordinates and data?
screenshot of relevant log fragments is in the very first post...

all the devices (all are android based) worked ok till 3.17
have just prepared another image
http://prntscr.com/ldij9t

bublik56 years ago

Sent email with detailed info to support, thank you in advance

Anton Tananaev6 years ago

Data is coming through the same network connection, so Traccar gets device id only once. You can set "decoder.ignoreSessionCache" to "true" to avoid this issue.

bublik56 years ago

Hello again!
Is it ok to disable ignoreSessionCache after update to 4.2?

Anton Tananaev6 years ago

Yes, you can remove it.