Hi All,
We are getting the exception below when downloading a large wfs response
in csv or gml format using gzip compression. Were are using geoserver
2.1.1 in production but this also happens in 2.3.3.
java.lang.OutOfMemoryError: Java heap space
java.util.Arrays.copyOf(Arrays.java:2271)
java.io.ByteArrayOutputStream.grow(ByteArrayOutputStream.java:113)
java.io.ByteArrayOutputStream.ensureCapacity(ByteArrayOutputStream.java:93)
java.io.ByteArrayOutputStream.write(ByteArrayOutputStream.java:140)
java.util.zip.DeflaterOutputStream.deflate(DeflaterOutputStream.java:253)
java.util.zip.DeflaterOutputStream.write(DeflaterOutputStream.java:211)
java.util.zip.GZIPOutputStream.write(GZIPOutputStream.java:146)
org.geoserver.filters.GZIPResponseStream.write(GZIPResponseStream.java:86)
org.geoserver.filters.GZIPResponseStream.write(GZIPResponseStream.java:79)
org.geoserver.filters.AlternativesResponseStream.write(AlternativesResponseStream.java:53)
org.geoserver.wfs.response.WfsExceptionHandler.handle1_0(WfsExceptionHandler.java:132)
org.geoserver.wfs.response.WfsExceptionHandler.handleDefault(WfsExceptionHandler.java:81)
org.geoserver.wfs.response.WfsExceptionHandler.handleServiceException(WfsExceptionHandler.java:59)
org.geoserver.ows.Dispatcher.handleServiceException(Dispatcher.java:1638)
org.geoserver.ows.Dispatcher.exception(Dispatcher.java:1583)
org.geoserver.ows.Dispatcher.handleRequestInternal(Dispatcher.java:282)
org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
From the log message above, geoserver is falling over writing all the
gzipped output to a ByteArrayOutputStream which in this case filled up
all available memory.
I note that this was the subject of a previous issue GEOS-2626, but it
ooks to me like the changes made there were reverted as a part of the
changes made in GEOS-4845 r16568.
Was this an intentional change or is there a way of reducing the memory
footprint of these requests? We'd prefer a low memory footprint for
downloads using gzip compression if possible.
Thanks,
Craig Jones
Integrated Marine Observing System
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