¿ªÔÆÌåÓý

ctrl + shift + ? for shortcuts
© 2025 Groups.io

java heap error message on rasp pi 3 when trying to download maps


 

java heap error message on rasp pi 3 when trying to download maps


anyone else encounter this, what did they do to fix the issue?


 

Are you trying to download maps, or import them from a .pbf file? What is the exact text of the error message? Copy-and-paste, please.

A Raspberry Pi is short on main memory by about an order of magnitude to be able to import a raw OpenStreetMap vector file. Adding swap space won't help; you'll just burn up your swap drive and melt the CPU. The importer logic needs at least 2 gigabytes of real heap memory to be able to handle an OpenStreetMap .pbf file of any significant size. You need to get the pre-imported files I make available on my website with the File->OpenStreetMap->Download Pre-Imported Tiles menu choice.

If you were downloading pre-imported tile files, how many of them were you importing? i.e., how many miles/kilometers of radius were you using? If you have a very fast Internet connection, it is theoretically possible for you to overload the Java virtual machine by opening the next tile file faster than the Java garbage collector can clean up after downloading the previous file.

Let me know what further information you have on the problem.

Andrew, KA2DDO
author of YAAC
________________________________________
From: [email protected] <[email protected]> on behalf of Chris Pitre <ve3ctp@...>
Sent: Tuesday, July 28, 2020 8:17 PM
To: [email protected]
Subject: [yaac-users] java heap error message on rasp pi 3 when trying to download maps

java heap error message on rasp pi 3 when trying to download maps


anyone else encounter this, what did they do to fix the issue?


Dave Garber
 

I am the one Chris was referring to.

I am trying to download 100 kms radius.
?
here is a copy of my captured screen...? ?not really an error, it just will not proceed to download

can I download via windows, then copy files to a raspberry folder


 

Hmmm... indeed, you haven't made much progress on the download.

Can you replicate this and then after it hangs for more than 10 minutes (or if it times out by them), send me the YAAC.out file from your YAAC log directory? The reason I say to wait 10 minutes is for standard TCP/IP timeout to occur, in case that is the cause, so either way I get an accurate error message.

The other question is: what exact date and time did you do this? I was upgrading my server around when you sent the original email. So were you in the middle of a download when I shut the server down for upgrade? I always check before I reboot the system, but it doesn't mean you didn't slip in between my check and when the shutdown script turns off networking.

Andrew, KA2DDO
author of YAAC


 

¿ªÔÆÌåÓý

Tha is what I did, except in my case I did it on a Mac. ?It worked without any fuss.


Clark Martin
KK6ISP

On Jul 31, 2020, at 8:23 PM, Dave Garber <ve3wej@...> wrote:

I am the one Chris was referring to.

I am trying to download 100 kms radius.
?
here is a copy of my captured screen...? ?not really an error, it just will not proceed to download

can I download via windows, then copy files to a raspberry folder

_._,_._,_


Dave Garber
 

I will install again on the Rpi3+, and advise of any errors, and I will be sure to wait the 10 minutes, at least


will advise, soon


Dave Garber
VE3WEJ / VE3IE


Dave Garber
 

ok, YAAC installed, downloading geofabrik north america pbf file.? ?should be done in about an hour or more
hope that the right one



Dave Garber
VE3WEJ / VE3IE


 

No, that's the one that's probably going to melt your Pi, assuming you have enough non-SD-card storage to handle the import (an SD card can't handle the number of write cycles involved in an import), and are willing to wait a few days.

You should use File->OpenStreetMap->Download Pre-Imported Tiles, which allows you to bypass the painful and resource-intensive process of importing the PBF file into YAAC-format map data.

For performing the full-planet import, I use an 8-core 3.0 GHz gaming server with 36GB of RAM and a solid-state disk just for the DB index files (which has been replaced twice over the development lifetime of YAAC due to wearing it out from imports), and it still takes over 20 hours.

Andrew, KA2DDO
author of YAAC

________________________________________
From: [email protected] <[email protected]> on behalf of Dave Garber <ve3wej@...>
Sent: Tuesday, August 4, 2020 3:52 PM
To: [email protected]
Subject: Re: [yaac-users] java heap error message on rasp pi 3 when trying to download maps

ok, YAAC installed, downloading geofabrik north america pbf file. should be done in about an hour or more
hope that the right one



Dave Garber
VE3WEJ / VE3IE


Dave Garber
 

ok, if i select pre tiles, a window pops up, with info on it.? ?


what is the next step from this
Dave Garber
VE3WEJ / VE3IE


On Tue, Aug 4, 2020 at 4:00 PM Andrew P. <andrewemt@...> wrote:
No, that's the one that's probably going to melt your Pi, assuming you have enough non-SD-card storage to handle the import (an SD card can't handle the number of write cycles involved in an import), and are willing to wait a few days.

You should use File->OpenStreetMap->Download Pre-Imported Tiles, which allows you to bypass the painful and resource-intensive process of importing the PBF file into YAAC-format map data.

For performing the full-planet import, I use an 8-core 3.0 GHz gaming server with 36GB of RAM and a solid-state disk just for the DB index files (which has been replaced twice over the development lifetime of YAAC due to wearing it out from imports), and it still takes over 20 hours.

Andrew, KA2DDO
author of YAAC

________________________________________
From: [email protected] <[email protected]> on behalf of Dave Garber <ve3wej@...>
Sent: Tuesday, August 4, 2020 3:52 PM
To: [email protected]
Subject: Re: [yaac-users] java heap error message on rasp pi 3 when trying to download maps

ok, YAAC installed, downloading geofabrik north america pbf file.? ?should be done in about an hour or more
hope that the right one



Dave Garber
VE3WEJ / VE3IE





Dave Garber
 

ok, I have 4 subfolders in the tiles subdirectory, but still no map


Dave Garber
VE3WEJ / VE3IE


On Tue, Aug 4, 2020 at 4:10 PM Dave Garber via <ve3wej=[email protected]> wrote:
ok, if i select pre tiles, a window pops up, with info on it.? ?


what is the next step from this
Dave Garber
VE3WEJ / VE3IE


On Tue, Aug 4, 2020 at 4:00 PM Andrew P. <andrewemt@...> wrote:
No, that's the one that's probably going to melt your Pi, assuming you have enough non-SD-card storage to handle the import (an SD card can't handle the number of write cycles involved in an import), and are willing to wait a few days.

You should use File->OpenStreetMap->Download Pre-Imported Tiles, which allows you to bypass the painful and resource-intensive process of importing the PBF file into YAAC-format map data.

For performing the full-planet import, I use an 8-core 3.0 GHz gaming server with 36GB of RAM and a solid-state disk just for the DB index files (which has been replaced twice over the development lifetime of YAAC due to wearing it out from imports), and it still takes over 20 hours.

Andrew, KA2DDO
author of YAAC

________________________________________
From: [email protected] <[email protected]> on behalf of Dave Garber <ve3wej@...>
Sent: Tuesday, August 4, 2020 3:52 PM
To: [email protected]
Subject: Re: [yaac-users] java heap error message on rasp pi 3 when trying to download maps

ok, YAAC installed, downloading geofabrik north america pbf file.? ?should be done in about an hour or more
hope that the right one



Dave Garber
VE3WEJ / VE3IE





 

Pan or zoom the map a bit. It doesn't reliably recalculate the map when download is complete.

Also, did you download in the correct area? There have been bug reports when people downloaded using East longitude instead of West longitude, so they had no map data for Missouri but lots of data for Afghanistan (for example) cluttering up their disk drive. If you go to File->OpenStreetMap->Download Pre-Imported Tiles again, the black rectangle should now have a clump of blue and/or white dots on it indicating 1x1-degree tiles for which you have downloaded map data. The upper-left quadrant of the rectangle covers North America and the Caribbean, the lower-left quadrant is South America, and the right half is the corresponding Eastern hemisphere of the globe. So, is that clump of dots in the correct place relative to where your station location would appear on a world map? Note that those 4 directories you pointed out should be named with the latitudes of the 1-degree chunks you downloaded. Since you have an Ontario Canada callsign prefix, I'm assuming you should have N43 and N44 directories (assuming you're around Toronto, although you might have N48 and N49 if you were in Thunder Bay).

Andrew, KA2DDO
author of YAAC
________________________________________
From: [email protected] <[email protected]> on behalf of Dave Garber <ve3wej@...>
Sent: Tuesday, August 4, 2020 5:08 PM
To: [email protected]
Subject: Re: [yaac-users] java heap error message on rasp pi 3 when trying to download maps

ok, I have 4 subfolders in the tiles subdirectory, but still no map


Dave Garber
VE3WEJ / VE3IE


On Tue, Aug 4, 2020 at 4:10 PM Dave Garber via groups.io<> <ve3wej@...<mailto:[email protected]>> wrote:
ok, if i select pre tiles, a window pops up, with info on it.


what is the next step from this
Dave Garber
VE3WEJ / VE3IE


On Tue, Aug 4, 2020 at 4:00 PM Andrew P. <andrewemt@...<mailto:andrewemt@...>> wrote:
No, that's the one that's probably going to melt your Pi, assuming you have enough non-SD-card storage to handle the import (an SD card can't handle the number of write cycles involved in an import), and are willing to wait a few days.

You should use File->OpenStreetMap->Download Pre-Imported Tiles, which allows you to bypass the painful and resource-intensive process of importing the PBF file into YAAC-format map data.

For performing the full-planet import, I use an 8-core 3.0 GHz gaming server with 36GB of RAM and a solid-state disk just for the DB index files (which has been replaced twice over the development lifetime of YAAC due to wearing it out from imports), and it still takes over 20 hours.

Andrew, KA2DDO
author of YAAC

________________________________________
From: [email protected]<mailto:[email protected]> <[email protected]<mailto:[email protected]>> on behalf of Dave Garber <ve3wej@...<mailto:ve3wej@...>>
Sent: Tuesday, August 4, 2020 3:52 PM
To: [email protected]<mailto:[email protected]>
Subject: Re: [yaac-users] java heap error message on rasp pi 3 when trying to download maps

ok, YAAC installed, downloading geofabrik north america pbf file. should be done in about an hour or more
hope that the right one



Dave Garber
VE3WEJ / VE3IE


 

The next step is to select the area you wish to download by center position and radius (for example, 200 kilometers around your lat/lon), and click OK. Before you click OK, you can optionally use the filters to get rid of map data types you may not care about (such as Nodes for individual trees, or administrative/political boundary Ways) and don't want to waste disk storage and CPU time on rendering.

Andrew, KA2DDO
author of YAAC
________________________________________
From: [email protected] <[email protected]> on behalf of Dave Garber <ve3wej@...>
Sent: Tuesday, August 4, 2020 4:10 PM
To: [email protected]
Subject: Re: [yaac-users] java heap error message on rasp pi 3 when trying to download maps

ok, if i select pre tiles, a window pops up, with info on it.


what is the next step from this
Dave Garber
VE3WEJ / VE3IE


On Tue, Aug 4, 2020 at 4:00 PM Andrew P. <andrewemt@...<mailto:andrewemt@...>> wrote:
No, that's the one that's probably going to melt your Pi, assuming you have enough non-SD-card storage to handle the import (an SD card can't handle the number of write cycles involved in an import), and are willing to wait a few days.

You should use File->OpenStreetMap->Download Pre-Imported Tiles, which allows you to bypass the painful and resource-intensive process of importing the PBF file into YAAC-format map data.

For performing the full-planet import, I use an 8-core 3.0 GHz gaming server with 36GB of RAM and a solid-state disk just for the DB index files (which has been replaced twice over the development lifetime of YAAC due to wearing it out from imports), and it still takes over 20 hours.

Andrew, KA2DDO
author of YAAC

________________________________________
From: [email protected]<mailto:[email protected]> <[email protected]<mailto:[email protected]>> on behalf of Dave Garber <ve3wej@...<mailto:ve3wej@...>>
Sent: Tuesday, August 4, 2020 3:52 PM
To: [email protected]<mailto:[email protected]>
Subject: Re: [yaac-users] java heap error message on rasp pi 3 when trying to download maps

ok, YAAC installed, downloading geofabrik north america pbf file. should be done in about an hour or more
hope that the right one



Dave Garber
VE3WEJ / VE3IE


Dave Garber
 

I sent a snip of my set screen, and although not wide ( and it wont go wider) I see 83.... west? and 42....north

the four folders are labelled n37 n38 n40 and n41.? yes there are files inside those folders..

i am not worrying yet about unchecking all the trees (lol)? ?and Buoys yet.? ?I would like to see a map first and have the local aprs hams show up in the correct position on my screen..

oh, and yes I have activity on my screen, just no map to follow where they are.



Dave Garber
VE3WEJ / VE3IE


On Tue, Aug 4, 2020 at 5:35 PM Andrew P. <andrewemt@...> wrote:
Pan or zoom the map a bit. It doesn't reliably recalculate the map when download is complete.

Also, did you download in the correct area? There have been bug reports when people downloaded using East longitude instead of West longitude, so they had no map data for Missouri but lots of data for Afghanistan (for example) cluttering up their disk drive. If you go to File->OpenStreetMap->Download Pre-Imported Tiles again, the black rectangle should now have a clump of blue and/or white dots on it indicating 1x1-degree tiles for which you have downloaded map data. The upper-left quadrant of the rectangle covers North America and the Caribbean, the lower-left quadrant is South America, and the right half is the corresponding Eastern hemisphere of the globe. So, is that clump of dots in the correct place relative to where your station location would appear on a world map? Note that those 4 directories you pointed out should be named with the latitudes of the 1-degree chunks you downloaded. Since you have an Ontario Canada callsign prefix, I'm assuming you should have N43 and N44 directories (assuming you're around Toronto, although you might have N48 and N49 if you were in Thunder Bay).

Andrew, KA2DDO
author of YAAC
________________________________________
From: [email protected] <[email protected]> on behalf of Dave Garber <ve3wej@...>
Sent: Tuesday, August 4, 2020 5:08 PM
To: [email protected]
Subject: Re: [yaac-users] java heap error message on rasp pi 3 when trying to download maps

ok, I have 4 subfolders in the tiles subdirectory, but still no map


Dave Garber
VE3WEJ / VE3IE


On Tue, Aug 4, 2020 at 4:10 PM Dave Garber via <> <ve3wej=[email protected]<mailto:[email protected]>> wrote:
ok, if i select pre tiles, a window pops up, with info on it.


what is the next step from this
Dave Garber
VE3WEJ / VE3IE


On Tue, Aug 4, 2020 at 4:00 PM Andrew P. <andrewemt@...<mailto:andrewemt@...>> wrote:
No, that's the one that's probably going to melt your Pi, assuming you have enough non-SD-card storage to handle the import (an SD card can't handle the number of write cycles involved in an import), and are willing to wait a few days.

You should use File->OpenStreetMap->Download Pre-Imported Tiles, which allows you to bypass the painful and resource-intensive process of importing the PBF file into YAAC-format map data.

For performing the full-planet import, I use an 8-core 3.0 GHz gaming server with 36GB of RAM and a solid-state disk just for the DB index files (which has been replaced twice over the development lifetime of YAAC due to wearing it out from imports), and it still takes over 20 hours.

Andrew, KA2DDO
author of YAAC

________________________________________
From: [email protected]<mailto:[email protected]> <[email protected]<mailto:[email protected]>> on behalf of Dave Garber <ve3wej@...<mailto:ve3wej@...>>
Sent: Tuesday, August 4, 2020 3:52 PM
To: [email protected]<mailto:[email protected]>
Subject: Re: [yaac-users] java heap error message on rasp pi 3 when trying to download maps

ok, YAAC installed, downloading geofabrik north america pbf file.? ?should be done in about an hour or more
hope that the right one



Dave Garber
VE3WEJ / VE3IE










 

Odd that you don't have a n39 subdirectory (or did you just skip mentioning it?). What are the numbers on the files in those subdirectories? They should look like W83.ways, W83.nodes, and so forth (given the latitude and longitude you told me).

________________________________________
From: [email protected] <[email protected]> on behalf of Dave Garber <ve3wej@...>
Sent: Tuesday, August 4, 2020 6:29 PM
To: [email protected]
Subject: Re: [yaac-users] java heap error message on rasp pi 3 when trying to download maps

I sent a snip of my set screen, and although not wide ( and it wont go wider) I see 83.... west and 42....north

the four folders are labelled n37 n38 n40 and n41. yes there are files inside those folders..

i am not worrying yet about unchecking all the trees (lol) and Buoys yet. I would like to see a map first and have the local aprs hams show up in the correct position on my screen..

oh, and yes I have activity on my screen, just no map to follow where they are.



Dave Garber
VE3WEJ / VE3IE


On Tue, Aug 4, 2020 at 5:35 PM Andrew P. <andrewemt@...<mailto:andrewemt@...>> wrote:
Pan or zoom the map a bit. It doesn't reliably recalculate the map when download is complete.

Also, did you download in the correct area? There have been bug reports when people downloaded using East longitude instead of West longitude, so they had no map data for Missouri but lots of data for Afghanistan (for example) cluttering up their disk drive. If you go to File->OpenStreetMap->Download Pre-Imported Tiles again, the black rectangle should now have a clump of blue and/or white dots on it indicating 1x1-degree tiles for which you have downloaded map data. The upper-left quadrant of the rectangle covers North America and the Caribbean, the lower-left quadrant is South America, and the right half is the corresponding Eastern hemisphere of the globe. So, is that clump of dots in the correct place relative to where your station location would appear on a world map? Note that those 4 directories you pointed out should be named with the latitudes of the 1-degree chunks you downloaded. Since you have an Ontario Canada callsign prefix, I'm assuming you should have N43 and N44 directories (assuming you're around Toronto, although you might have N48 and N49 if you were in Thunder Bay).

Andrew, KA2DDO
author of YAAC
________________________________________
From: [email protected]<mailto:[email protected]> <[email protected]<mailto:[email protected]>> on behalf of Dave Garber <ve3wej@...<mailto:ve3wej@...>>
Sent: Tuesday, August 4, 2020 5:08 PM
To: [email protected]<mailto:[email protected]>
Subject: Re: [yaac-users] java heap error message on rasp pi 3 when trying to download maps

ok, I have 4 subfolders in the tiles subdirectory, but still no map


Dave Garber
VE3WEJ / VE3IE


On Tue, Aug 4, 2020 at 4:10 PM Dave Garber via groups.io<><> <ve3wej@...<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>> wrote:
ok, if i select pre tiles, a window pops up, with info on it.


what is the next step from this
Dave Garber
VE3WEJ / VE3IE


On Tue, Aug 4, 2020 at 4:00 PM Andrew P. <andrewemt@...<mailto:andrewemt@...><mailto:andrewemt@...<mailto:andrewemt@...>>> wrote:
No, that's the one that's probably going to melt your Pi, assuming you have enough non-SD-card storage to handle the import (an SD card can't handle the number of write cycles involved in an import), and are willing to wait a few days.

You should use File->OpenStreetMap->Download Pre-Imported Tiles, which allows you to bypass the painful and resource-intensive process of importing the PBF file into YAAC-format map data.

For performing the full-planet import, I use an 8-core 3.0 GHz gaming server with 36GB of RAM and a solid-state disk just for the DB index files (which has been replaced twice over the development lifetime of YAAC due to wearing it out from imports), and it still takes over 20 hours.

Andrew, KA2DDO
author of YAAC

________________________________________
From: [email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>> <[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>> on behalf of Dave Garber <ve3wej@...<mailto:ve3wej@...><mailto:ve3wej@...<mailto:ve3wej@...>>>
Sent: Tuesday, August 4, 2020 3:52 PM
To: [email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>
Subject: Re: [yaac-users] java heap error message on rasp pi 3 when trying to download maps

ok, YAAC installed, downloading geofabrik north america pbf file. should be done in about an hour or more
hope that the right one



Dave Garber
VE3WEJ / VE3IE


Dave Garber
 

this is the latest
Dave Garber
VE3WEJ / VE3IE


On Tue, Aug 4, 2020 at 6:35 PM Andrew P. <andrewemt@...> wrote:
Odd that you don't have a n39 subdirectory (or did you just skip mentioning it?). What are the numbers on the files in those subdirectories? They should look like W83.ways, W83.nodes, and so forth (given the latitude and longitude you told me).

________________________________________
From: [email protected] <[email protected]> on behalf of Dave Garber <ve3wej@...>
Sent: Tuesday, August 4, 2020 6:29 PM
To: [email protected]
Subject: Re: [yaac-users] java heap error message on rasp pi 3 when trying to download maps

I sent a snip of my set screen, and although not wide ( and it wont go wider) I see 83.... west? and 42....north

the four folders are labelled n37 n38 n40 and n41.? yes there are files inside those folders..

i am not worrying yet about unchecking all the trees (lol)? ?and Buoys yet.? ?I would like to see a map first and have the local aprs hams show up in the correct position on my screen..

oh, and yes I have activity on my screen, just no map to follow where they are.



Dave Garber
VE3WEJ / VE3IE


On Tue, Aug 4, 2020 at 5:35 PM Andrew P. <andrewemt@...<mailto:andrewemt@...>> wrote:
Pan or zoom the map a bit. It doesn't reliably recalculate the map when download is complete.

Also, did you download in the correct area? There have been bug reports when people downloaded using East longitude instead of West longitude, so they had no map data for Missouri but lots of data for Afghanistan (for example) cluttering up their disk drive. If you go to File->OpenStreetMap->Download Pre-Imported Tiles again, the black rectangle should now have a clump of blue and/or white dots on it indicating 1x1-degree tiles for which you have downloaded map data. The upper-left quadrant of the rectangle covers North America and the Caribbean, the lower-left quadrant is South America, and the right half is the corresponding Eastern hemisphere of the globe. So, is that clump of dots in the correct place relative to where your station location would appear on a world map? Note that those 4 directories you pointed out should be named with the latitudes of the 1-degree chunks you downloaded. Since you have an Ontario Canada callsign prefix, I'm assuming you should have N43 and N44 directories (assuming you're around Toronto, although you might have N48 and N49 if you were in Thunder Bay).

Andrew, KA2DDO
author of YAAC
________________________________________
From: [email protected]<mailto:[email protected]> <[email protected]<mailto:[email protected]>> on behalf of Dave Garber <ve3wej@...<mailto:ve3wej@...>>
Sent: Tuesday, August 4, 2020 5:08 PM
To: [email protected]<mailto:[email protected]>
Subject: Re: [yaac-users] java heap error message on rasp pi 3 when trying to download maps

ok, I have 4 subfolders in the tiles subdirectory, but still no map


Dave Garber
VE3WEJ / VE3IE


On Tue, Aug 4, 2020 at 4:10 PM Dave Garber via <><> <ve3wej=[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>> wrote:
ok, if i select pre tiles, a window pops up, with info on it.


what is the next step from this
Dave Garber
VE3WEJ / VE3IE


On Tue, Aug 4, 2020 at 4:00 PM Andrew P. <andrewemt@...<mailto:andrewemt@...><mailto:andrewemt@...<mailto:andrewemt@...>>> wrote:
No, that's the one that's probably going to melt your Pi, assuming you have enough non-SD-card storage to handle the import (an SD card can't handle the number of write cycles involved in an import), and are willing to wait a few days.

You should use File->OpenStreetMap->Download Pre-Imported Tiles, which allows you to bypass the painful and resource-intensive process of importing the PBF file into YAAC-format map data.

For performing the full-planet import, I use an 8-core 3.0 GHz gaming server with 36GB of RAM and a solid-state disk just for the DB index files (which has been replaced twice over the development lifetime of YAAC due to wearing it out from imports), and it still takes over 20 hours.

Andrew, KA2DDO
author of YAAC

________________________________________
From: [email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>> <[email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>> on behalf of Dave Garber <ve3wej@...<mailto:ve3wej@...><mailto:ve3wej@...<mailto:ve3wej@...>>>
Sent: Tuesday, August 4, 2020 3:52 PM
To: [email protected]<mailto:[email protected]><mailto:[email protected]<mailto:[email protected]>>
Subject: Re: [yaac-users] java heap error message on rasp pi 3 when trying to download maps

ok, YAAC installed, downloading geofabrik north america pbf file.? ?should be done in about an hour or more
hope that the right one



Dave Garber
VE3WEJ / VE3IE














Dave Garber
 

updating you on our progress ( or lack of any)


I still have no maps, and ve3ctp just install on his RPI 3+, and as you can see in snippet, he has one map...

what can we do next, to finally get rid of xastir...


 

I installed YAAC on a PC(windows or linux) then used YAAC on the PC to download the maps I wanted. I then transferred those maps to the Pi via a file transfer program.


 

one more try to post.
If you can; install YAAC on a PC(either windows or linux); you can then use the PC version to download the maps. And save them for use on other YAAC installations. Then use a file transfer program to put the map files onto the Pi.


Dave Garber
 

Do I put zip files and there subfolders in yaac. Or do I extract.? ?To where?

sent by my LG phone

On Sun, Aug 9, 2020, 9:20 PM , <k1hu@...> wrote:
one more try to post.
If you can; install YAAC on a PC(either windows or linux); you can then use the PC version to download the maps. And save them for use on other YAAC installations. Then use a file transfer program to put the map files onto the Pi.


 

Unless you explicitly need map data I haven't made available on my website yet (I'm about a month behind right now) and have a machine large enough to handle the extremely expensive process of converting the OpenStreetMap database export PBF or BZ2 file into YAAC binary map data, I strongly recommend that you just let each computer running YAAC download the pre-imported binary files on my website. This avoids version compatibility issues and probable heap exhaustion failures on undersized machines; I have to use a large gaming system with 36GB of RAM and a solid state disk just for the temporary index files to import the planet-sized OpenStreetMap export file, and that still takes over a day on such oversized hardware.

It is almost guaranteed that a Raspberry Pi cannot get enough heap memory to do an OpenStreetMap import, and it will certainly burn out your SD card unless you have some other kind of disk storage connected to the Pi to support the import operation.

Importing is very easy. On the YAAC menu, select File->OpenStreetMap->Download Pre-Imported Tiles, then when the dialog box comes up, select the area you want to download (re-downloads just overwrite your existing map data with newer data), and click OK to start the transfer.

Andrew, KA2DDO
author of YAAC

________________________________________
From: [email protected] <[email protected]> on behalf of Dave Garber <ve3wej@...>
Sent: Sunday, August 9, 2020 9:37 PM
To: [email protected]
Subject: Re: [yaac-users] java heap error message on rasp pi 3 when trying to download maps

Do I put zip files and there subfolders in yaac. Or do I extract. To where?

sent by my LG phone

On Sun, Aug 9, 2020, 9:20 PM , <k1hu@...<mailto:k1hu@...>> wrote:
one more try to post.
If you can; install YAAC on a PC(either windows or linux); you can then use the PC version to download the maps. And save them for use on other YAAC installations. Then use a file transfer program to put the map files onto the Pi.