Crash when reading 1000 image files from fibers
Alan Bateman
Alan.Bateman at oracle.com
Sun Sep 1 08:03:43 UTC 2019
On 01/09/2019 07:50, Cay Horstmann wrote:
> I just checked out Loom from Github on a Linux machine and changed the
> example from http://horstmann.com/unblog/2019-07-27/ to use fibers.
> Good news: The code is much clearer than with completable futures. I
> schedule 1000 fibers that do this work:
>
> public void load(LocalDate date, ImageInfo info) {
> try {
> URL url = new URL(info.getUrlForDate(date));
> var in = url.openStream();
> info.findImage(new String(in.readAllBytes()));
> in.close();
> url = new URL(info.getImagePath());
> in = url.openStream();
> info.setImageData(in.readAllBytes());
> in.close();
> process(info); // Saves the bytes to a file
> } catch (Exception ex) {
> ex.printStackTrace();
> }
> }
>
> Unfortunately, after about 800 images, the program dies with the
> message below.
>
> Does this look like I am touching anything that's not yet supported?
> If not, do you really want crash reports sent to
> http://bugreport.java.com/bugreport/crash.jsp, or is there some other
> process?
I don't think bugreport.java.com knows about this project (it doesn't
know about the other main projects either). So here is best. Is the
example small enough to send? There are a number of stability issues
right now, sadly this is normal while we are still in this
prototyping/exploration phase.
-Alan
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