I am converting this to a Github issue:
https://github.com/Unidata/thredds/issues/501
=Dennis Heimbigner
Unidata
On 3/24/2016 7:34 AM, David Blodgett wrote:
Following up with a bit more info.
This dataset:
http://cida.usgs.gov/thredds/catalog.html?dataset=cida.usgs.gov/wicci/cmip3/20c3m
And this one:
http://cida.usgs.gov/thredds/catalog.html?dataset=cida.usgs.gov/wicci/cmip3/sres_early
Are identical except one is for a period in the future (sres_early) After some
period of time with no direct use of the dataset, the netCDFSubset page starts
to come back 500 for the sres_early. For the 20c3m, the netcdf subset page
comes back 200, but I get stack trace 1, included below.
A related DataBtree error can be reproduced by asking for the coordinate
variables of this dataset:
http://cida.usgs.gov/thredds/dodsC/stageiv/stageiv_archive.ncml.ascii?lon[0:1:1120][0:1:880]
The threddsservlet log stack trace is included as stack trace 2 below.
What’s odd is that the server works as expected for some period of time or volume of usage
then goes into this state where some aggregations of netcdf4 data produce DataBTree errors and some
NetCDF Subset pages return 500 with nothing in the logs indicating a failure. In fact, for the
NetCDF Subset 500 errors, there is no ‘Request Completed’ in the threddsservlet log.
This is only happening with some datasets and it appears that the core datasets we host are
all functioning as expected. I’d really rather not roll back to an old version if we
can identify a fix for this. If I need to take the time to provide sample files I can do
that, but I’d need to know specifically what is needed to look at it more closely.
Thanks!
- Dave
Stack trace 1:
2016-03-24T08:24:00.844 -0500 [ 2740359][ 366] ERROR -
ucar.nc2.dt.grid.GridCoordSys - N/A: Error reading time coord= time
java.lang.IllegalStateException: DataBTree doesnt start with TREE
at ucar.nc2.iosp.hdf5.DataBTree$Node.<init>(DataBTree.java:175)
~[cdm-4.6.4.jar:4.6.4]
at
ucar.nc2.iosp.hdf5.DataBTree$DataChunkIterator.<init>(DataBTree.java:135)
~[cdm-4.6.4.jar:4.6.4]
at
ucar.nc2.iosp.hdf5.DataBTree.getDataChunkIteratorFilter(DataBTree.java:61)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.iosp.hdf5.H5tiledLayoutBB.<init>(H5tiledLayoutBB.java:110)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.iosp.hdf5.H5iosp.readData(H5iosp.java:162)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.iosp.hdf5.H5iosp.readData(H5iosp.java:141)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.NetcdfFile.readData(NetcdfFile.java:2009)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.Variable.reallyRead(Variable.java:874)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.Variable._read(Variable.java:845) ~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.Variable.read(Variable.java:723) ~[cdm-4.6.4.jar:4.6.4]
at
ucar.nc2.ncml.Aggregation$DatasetProxyReader.reallyRead(Aggregation.java:843)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.dataset.VariableDS._read(VariableDS.java:507)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.Variable.read(Variable.java:723) ~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.dataset.VariableDS.reallyRead(VariableDS.java:523)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.dataset.VariableDS._read(VariableDS.java:507)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.Variable.read(Variable.java:723) ~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.dataset.VariableDS.reallyRead(VariableDS.java:523)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.dataset.VariableDS._read(VariableDS.java:507)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.Variable.read(Variable.java:723) ~[cdm-4.6.4.jar:4.6.4]
at
ucar.nc2.dataset.CoordinateAxis1DTime.<init>(CoordinateAxis1DTime.java:305)
~[cdm-4.6.4.jar:4.6.4]
at
ucar.nc2.dataset.CoordinateAxis1DTime.factory(CoordinateAxis1DTime.java:74)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.dt.grid.GridCoordSys.<init>(GridCoordSys.java:409)
[cdm-4.6.4.jar:4.6.4]
at
ucar.nc2.dt.grid.GridCoordSys.makeGridCoordSys(GridCoordSys.java:308)
[cdm-4.6.4.jar:4.6.4]
at
ucar.nc2.dt.grid.GridDataset.constructCoordinateSystems(GridDataset.java:170)
[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.dt.grid.GridDataset.<init>(GridDataset.java:150)
[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.dt.grid.GridDataset.<init>(GridDataset.java:128)
[cdm-4.6.4.jar:4.6.4]
at
ucar.nc2.ft.GridDatasetStandardFactory.isMine(GridDatasetStandardFactory.java:55)
[cdm-4.6.4.jar:4.6.4]
at
ucar.nc2.ft.FeatureDatasetFactoryManager.wrap(FeatureDatasetFactoryManager.java:280)
[cdm-4.6.4.jar:4.6.4]
at
ucar.nc2.ft.FeatureDatasetFactoryManager.wrapUnknown(FeatureDatasetFactoryManager.java:299)
[cdm-4.6.4.jar:4.6.4]
at
ucar.nc2.ft.FeatureDatasetFactoryManager.wrap(FeatureDatasetFactoryManager.java:270)
[cdm-4.6.4.jar:4.6.4]
at
thredds.server.ncss.dataservice.FeatureDatasetServiceImpl.findDatasetByPath(FeatureDatasetServiceImpl.java:93)
[FeatureDatasetServiceImpl.class:?]
at
thredds.server.ncss.controller.NcssDatasetInfoController.getDatasetDescription(NcssDatasetInfoController.java:98)
[NcssDatasetInfoController.class:?]
at sun.reflect.GeneratedMethodAccessor47.invoke(Unknown Source) ~[?:?]
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
~[?:1.8.0_45]
at java.lang.reflect.Method.invoke(Method.java:497) ~[?:1.8.0_45]
at
org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
[spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
[spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
[spring-webmvc-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:776)
[spring-webmvc-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:705)
[spring-webmvc-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
[spring-webmvc-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
[spring-webmvc-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
[spring-webmvc-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
[spring-webmvc-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:857)
[spring-webmvc-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
[servlet-api.jar:?]
at
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
[spring-webmvc-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
[servlet-api.jar:?]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[catalina.jar:7.0.53]
at
thredds.servlet.filter.RequestQueryFilter.doFilter(RequestQueryFilter.java:118)
[RequestQueryFilter.class:?]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[catalina.jar:7.0.53]
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
[tomcat7-websocket.jar:7.0.53]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[catalina.jar:7.0.53]
at
thredds.servlet.filter.RequestCORSFilter.doFilterInternal(RequestCORSFilter.java:49)
[RequestCORSFilter.class:?]
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
[spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)
[spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)
[spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[catalina.jar:7.0.53]
at
thredds.servlet.filter.RequestPathFilter.doFilter(RequestPathFilter.java:94)
[RequestPathFilter.class:?]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[catalina.jar:7.0.53]
at
thredds.server.RequestBracketingLogMessageFilter.doFilter(RequestBracketingLogMessageFilter.java:81)
[RequestBracketingLogMessageFilter.class:?]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[catalina.jar:7.0.53]
at
org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:71)
[log4j-web-2.2.jar:2.2]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
[catalina.jar:7.0.53]
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
[catalina.jar:7.0.53]
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
[catalina.jar:7.0.53]
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
[catalina.jar:7.0.53]
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
[catalina.jar:7.0.53]
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
[tomcat-coyote.jar:7.0.53]
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
[tomcat-coyote.jar:7.0.53]
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
[tomcat-coyote.jar:7.0.53]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[?:1.8.0_45]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[?:1.8.0_45]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_45]
Stack trace 2:
2016-03-24T08:29:51.406 -0500 [ 3090921][ 383] ERROR -
thredds.server.opendap.OpendapServlet - path2=
/stageiv/stageiv_archive.ncml.ascii
java.lang.IllegalStateException: DataBTree doesnt start with TREE
at ucar.nc2.iosp.hdf5.DataBTree$Node.<init>(DataBTree.java:175)
~[cdm-4.6.4.jar:4.6.4]
at
ucar.nc2.iosp.hdf5.DataBTree$DataChunkIterator.<init>(DataBTree.java:135)
~[cdm-4.6.4.jar:4.6.4]
at
ucar.nc2.iosp.hdf5.DataBTree.getDataChunkIteratorFilter(DataBTree.java:61)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.iosp.hdf5.H5tiledLayoutBB.<init>(H5tiledLayoutBB.java:110)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.iosp.hdf5.H5iosp.readData(H5iosp.java:162)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.iosp.hdf5.H5iosp.readData(H5iosp.java:141)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.NetcdfFile.readData(NetcdfFile.java:2009)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.Variable.reallyRead(Variable.java:874)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.Variable._read(Variable.java:845) ~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.Variable.read(Variable.java:723) ~[cdm-4.6.4.jar:4.6.4]
at
ucar.nc2.ncml.Aggregation$DatasetProxyReader.reallyRead(Aggregation.java:843)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.dataset.VariableDS._read(VariableDS.java:507)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.Variable.read(Variable.java:723) ~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.dataset.VariableDS.reallyRead(VariableDS.java:523)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.dataset.VariableDS._read(VariableDS.java:507)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.dataset.VariableDS._read(VariableDS.java:531)
~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.Variable.read(Variable.java:709) ~[cdm-4.6.4.jar:4.6.4]
at ucar.nc2.Variable.read(Variable.java:683) ~[cdm-4.6.4.jar:4.6.4]
at thredds.server.opendap.NcSDArray.read(NcSDArray.java:115)
~[NcSDArray.class:?]
at opendap.servlet.AsciiWriter.writeAsc(AsciiWriter.java:107)
~[opendap-4.6.4.jar:4.6.4]
at opendap.servlet.AsciiWriter.toASCII(AsciiWriter.java:68)
~[opendap-4.6.4.jar:4.6.4]
at
thredds.server.opendap.OpendapServlet.doGetASC(OpendapServlet.java:315)
~[OpendapServlet.class:?]
at thredds.server.opendap.OpendapServlet.doGet(OpendapServlet.java:220)
[OpendapServlet.class:?]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
[servlet-api.jar:?]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
[servlet-api.jar:?]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[catalina.jar:7.0.53]
at thredds.servlet.filter.CookieFilter.doFilter(CookieFilter.java:55)
[CookieFilter.class:?]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[catalina.jar:7.0.53]
at
thredds.servlet.filter.RequestQueryFilter.doFilter(RequestQueryFilter.java:118)
[RequestQueryFilter.class:?]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[catalina.jar:7.0.53]
at
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
[tomcat7-websocket.jar:7.0.53]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[catalina.jar:7.0.53]
at
thredds.servlet.filter.RequestCORSFilter.doFilterInternal(RequestCORSFilter.java:49)
[RequestCORSFilter.class:?]
at
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
[spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)
[spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)
[spring-web-4.1.6.RELEASE.jar:4.1.6.RELEASE]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[catalina.jar:7.0.53]
at
thredds.servlet.filter.RequestPathFilter.doFilter(RequestPathFilter.java:94)
[RequestPathFilter.class:?]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[catalina.jar:7.0.53]
at
thredds.server.RequestBracketingLogMessageFilter.doFilter(RequestBracketingLogMessageFilter.java:81)
[RequestBracketingLogMessageFilter.class:?]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[catalina.jar:7.0.53]
at
org.apache.logging.log4j.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:71)
[log4j-web-2.2.jar:2.2]
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
[catalina.jar:7.0.53]
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
[catalina.jar:7.0.53]
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
[catalina.jar:7.0.53]
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
[catalina.jar:7.0.53]
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
[catalina.jar:7.0.53]
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
[catalina.jar:7.0.53]
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
[tomcat-coyote.jar:7.0.53]
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
[tomcat-coyote.jar:7.0.53]
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
[tomcat-coyote.jar:7.0.53]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[?:1.8.0_45]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[?:1.8.0_45]
at java.lang.Thread.run(Thread.java:745) [?:1.8.0_45]
2016-03-24T08:29:51.427 -0500 [ 3090942][ 383] INFO - threddsServlet -
Request Completed - 500 - -1 - 23
On Mar 23, 2016, at 8:13 AM, DAVID L BLODGETT <dblodgett@xxxxxxxx> wrote:
THREDDS Community,
We recently upgraded to THREDDS 4.6.4 from 4.5.5. Everything seemed to go smoothly,
but we started getting 'DataBTree doesnt start with TREE’ and other DataBTree
errors.
These seem to be isolated to aggregations of NetCDF4 files and the issue is
fixed by restarting the server.
I haven’t found anything related to this error elsewhere, maybe someone on the
list can shed some light on the situation?
Thanks.
- Dave
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