What are the settings on your java virtual machine that the tomcat is
running under? You probably need to increase the heap available to
the Tomcat and then do a shutdown and startup of the tomcat.
-Roy M.
On Oct 29, 2007, at 7:15 PM, Trevor.Daniels@xxxxxxxx wrote:
Hi,
I'm getting out of memory errors trying to aggregate some rainfall
data
files (each 2.5Mb) using the netcdf grid subsetting service in thredds
(3.16.19) with the following..
<dataset name="Rainfall" ID="RainAggregated"
urlPath="content/bilo/aggregatedData.nc">
<netcdf xmlns="http://www.unidata.ucar.edu/namespaces/netcdf/
ncml-2.2">
<aggregation dimName="time" type="joinNew">
<variableAgg name="rain"/>
<scan location="c:\data\bilo\2007\" suffix=".nc"
dateFormatMark="#yyyyMMdd" />
</aggregation>
</netcdf>
Generally the aggregation works for producing outputs of up to about
50Mb, whereby anything greater generates the following stack trace on
multiple pc's...
Oct 29, 2007 3:34:48 PM org.apache.catalina.core.StandardWrapperValve
invoke
SEVERE: Servlet.service() for servlet GridSubsetService threw
exception
java.lang.OutOfMemoryError: Java heap space
at ucar.ma2.ArrayFloat.<init>(ArrayFloat.java:86)
at ucar.ma2.ArrayFloat$D3.<init>(ArrayFloat.java:291)
at ucar.ma2.ArrayFloat$D3.<init>(ArrayFloat.java:283)
at ucar.ma2.ArrayFloat.factory(ArrayFloat.java:50)
at ucar.ma2.ArrayFloat.factory(ArrayFloat.java:36)
at ucar.ma2.Array.factory(Array.java:130)
at ucar.ma2.Array.factory(Array.java:79)
at ucar.nc2.ncml.Aggregation.read(Aggregation.java:666)
at ucar.nc2.dataset.VariableDS._read(VariableDS.java:277)
at ucar.nc2.Variable.read(Variable.java:603)
at ucar.nc2.Variable.read(Variable.java:556)
at ucar.nc2.FileWriter.copySome(FileWriter.java:287)
at ucar.nc2.FileWriter.copyVarData(FileWriter.java:225)
at ucar.nc2.FileWriter.finish(FileWriter.java:459)
at ucar.nc2.dt.grid.NetcdfCFWriter.makeFile(NetcdfCFWriter.java:198)
at thredds.server.ncSubset.GridServlet.sendFile(GridServlet.java:395)
at
thredds.server.ncSubset.GridServlet.processGrid(GridServlet.java:354)
at thredds.server.ncSubset.GridServlet.doGet(GridServlet.java:148)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter
(Applica
tionFilterChain.java:290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter
(ApplicationFilt
erChain.java:206)
at
org.apache.catalina.core.StandardWrapperValve.invoke
(StandardWrapperValv
e.java:233)
at
org.apache.catalina.core.StandardContextValve.invoke
(StandardContextValv
e.java:175)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke
(Authenticator
Base.java:433)
at
org.apache.catalina.core.StandardHostValve.invoke
(StandardHostValve.java
:128)
at
org.apache.catalina.valves.ErrorReportValve.invoke
(ErrorReportValve.java
:102)
at
org.apache.catalina.core.StandardEngineValve.invoke
(StandardEngineValve.
java:109)
at
org.apache.catalina.connector.CoyoteAdapter.service
(CoyoteAdapter.java:2
63)
at
org.apache.coyote.http11.Http11Processor.process
(Http11Processor.java:84
4)
at
org.apache.coyote.http11.Http11Protocol
$Http11ConnectionHandler.process(
Http11Protocol.java:584)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:
447)
Any suggestions on how to resolve or further diagnose?
Thanks for help,
Trevor
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**********************
"The contents of this message do not reflect any position of the U.S.
Government or NOAA."
**********************
Roy Mendelssohn
Supervisory Operations Research Analyst
NOAA/NMFS
Environmental Research Division
Southwest Fisheries Science Center
1352 Lighthouse Avenue
Pacific Grove, CA 93950-2097
e-mail: Roy.Mendelssohn@xxxxxxxx (Note new e-mail address)
voice: (831)-648-9029
fax: (831)-648-8440
www: http://www.pfeg.noaa.gov/
"Old age and treachery will overcome youth and skill."
