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Geoserver 2.14 is using imageio-ext 1.1.25.
A bug is already solved for the logger level of a “ClientStreamAbortedException”:
https://osgeo-org.atlassian.net/browse/GEOS-8958
But I notice that it appears sometimes on the logs again.
It comes from PNGWriter class:
11-Dec-2018 16:36:52.213 SEVERE [http-nio-3000-exec-1] it.geosolutions.imageio.plugins.png.PNGWriter.writePNG Failed to encode the PNG ar.com.hjg.pngj.PngjOutputException: org.geoserver.ows.ClientStreamAbortedException at ar.com.hjg.pngj.PngHelperInternal.writeBytes(PngHelperInternal.java:196) at ar.com.hjg.pngj.chunks.ChunkRaw.writeChunk(ChunkRaw.java:97) at ar.com.hjg.pngj.PngIDatChunkOutputStream.flushBuffer(PngIDatChunkOutputStream.java:28) at ar.com.hjg.pngj.ProgressiveOutputStream.checkFlushBuffer(ProgressiveOutputStream.java:65) at ar.com.hjg.pngj.ProgressiveOutputStream.flush(ProgressiveOutputStream.java:28) at ar.com.hjg.pngj.PngWriter.end(PngWriter.java:400) at it.geosolutions.imageio.plugins.png.PNGWriter.writePNG(PNGWriter.java:110) at it.geosolutions.imageio.plugins.png.PNGWriter.writePNG(PNGWriter.java:48) at org.geoserver.wms.map.png.PNGJWriter.writePNG(PNGJWriter.java:51) at org.geoserver.wms.map.PNGMapResponse.formatImageOutputStream(PNGMapResponse.java:104) at org.geoserver.wms.map.RenderedImageMapResponse.write(RenderedImageMapResponse.java:111) at org.geoserver.ows.Dispatcher.response(Dispatcher.java:1032) at org.geoserver.ows.Dispatcher.handleRequestInternal(Dispatcher.java:268) at org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:174)
At this class exists a logger at level SEVERE:
LOGGER.log(Level.SEVERE, “Failed to encode the PNG”, e);
PR to fix it:
https://github.com/geosolutions-it/imageio-ext/issues/181
Need upgrade to imageio-ext version 1.1.26.
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