BUG:Out of memory

[omero-qa]

​http://qa.openmicroscopy.org.uk/qa/feedback/3952/

Comment: opening an image search results
the images I was working with are imported as .tiff files, the size is
1044x775.

java.lang.Exception: Abnormal termination due to an uncaught exception.
java.lang.OutOfMemoryError: Java heap space
	at java.awt.image.DataBufferInt.<init>(DataBufferInt.java:75)
	at com.sun.java.swing.plaf.gtk.GTKEngine.finishPainting(GTKEngine.java:589)
	at com.sun.java.swing.plaf.gtk.GTKEngine.finishPainting(GTKEngine.java:580)
	at com.sun.java.swing.plaf.gtk.GTKPainter.paintViewportBorder(GTKPainter.java:631)
	at javax.swing.plaf.synth.SynthScrollPaneUI$ViewportBorder.paintBorder(SynthScrollPaneUI.java:213)
	at javax.swing.plaf.synth.SynthScrollPaneUI.paint(SynthScrollPaneUI.java:84)
	at javax.swing.plaf.synth.SynthScrollPaneUI.update(SynthScrollPaneUI.java:68)
	at javax.swing.JComponent.paintComponent(JComponent.java:765)
	at javax.swing.JComponent.paint(JComponent.java:1029)
	at javax.swing.JComponent.paintChildren(JComponent.java:866)
	at javax.swing.JComponent.paint(JComponent.java:1038)
	at javax.swing.JComponent.paintChildren(JComponent.java:866)
	at javax.swing.JComponent.paint(JComponent.java:1038)
	at javax.swing.JComponent.paintChildren(JComponent.java:866)
	at javax.swing.JSplitPane.paintChildren(JSplitPane.java:1042)
	at javax.swing.JComponent.paint(JComponent.java:1038)
	at javax.swing.JComponent.paintChildren(JComponent.java:866)
	at javax.swing.JComponent.paint(JComponent.java:1038)
	at javax.swing.JComponent.paintChildren(JComponent.java:866)
	at javax.swing.JComponent.paint(JComponent.java:1038)
	at javax.swing.JLayeredPane.paint(JLayeredPane.java:581)
	at javax.swing.JComponent.paintChildren(JComponent.java:866)
	at javax.swing.JComponent.paintToOffscreen(JComponent.java:5145)
	at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:302)
	at javax.swing.RepaintManager.paint(RepaintManager.java:1145)
	at javax.swing.JComponent.paint(JComponent.java:1015)
	at java.awt.GraphicsCallback$PaintCallback.run(GraphicsCallback.java:39)
	at sun.awt.SunGraphicsCallback.runOneComponent(SunGraphicsCallback.java:78)
	at sun.awt.SunGraphicsCallback.runComponents(SunGraphicsCallback.java:115)
	at java.awt.Container.paint(Container.java:1844)
	at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:751)

[jburel]

increasing heap size but need to test other scaling library to improve performance, quality.

[jburel]

Need to make sure buffered images are flushed but this could also be related to a critical ICE bug recently fixed.

[jburel]

investigating problem

[jburel]

using java-image-scaling for scaling image in viewer. Faster

[ajpatterson]

Opened nine 1600x1200 images, started to zoom each to max extent. Got the error "An error occurred while magnifying the image" after I had zoomed six all the way in. Even after closing the 6 images the others 3 still gave same error. Error dialog worked well though and app did not crash and remained responsive.

[jburel]

Could you add the log to the ticket? Maybe a compressed version if too big.

[ajpatterson]

log of error

[jburel]

From the log, it is not a problem with the memory itself. The settings cannot be reset: image missing stats for a given channels, in the Rendering Engine i.e. Server side

[Jean-marie Burel <j.burel@…>]

(In [f485990884e9659d5bacba9ae79e50a2e72fd434/ome.git] on branch develop) Use java-scaling library

To improve the creation of buffered image in viewer
use java-scaling library (see #6662)

[Jean-marie Burel <j.burel@…>]

(In [06c46facf4490f7871e23d160ac938b1e7d2a165/ome.git] on branch develop) Out of memory

Flush images and invokes garbage collector
so we do not keep all the buffered images
around (see #6662)

[Jean-marie Burel <j.burel@…>]

(In [9dccc3e2851d35ebb244814f64bdb3d34a4be66f/ome.git] on branch develop) Flush on close

Flush the images and free memory
when closing the browser. (close #6662)