Gerald, my apologies, we are barking up the wrong tree. the server
having problems is the GRADS server:> nomads.ncep.noaa.gov and nomads.ncdc.noaa.gov are two separate entities. this is a GDS server. ~/dods/ rather than ~/thredds/dods/. Unlike Thredds, GDS must take itself offline for short periods to refresh its catalog. That could be whats causing this, but the downtime should be on the order of 6 mins / not 6 hours. > You can try their HelpDesk @ http://nomads.ncep.noaa.gov/txt_descriptions/Help_Desk_doc.shtmlIm sorry theres not much more I can do. You might email the users in the email below to see what they found out. On 4/29/2010 6:36 AM, Gerald Spreitzhofer wrote: John et al, Just for your information: I found another email directed to the Nomads-Users list where people reported about problems with SocketException. I don't know if at that time some actions to fix the problem were set, but maybe it helps. Best Regards, Gerald ------------------------ Ursprüngliche Nachricht ------------------------ Betreff: Re: [NCEP.List.Nomads-Users] problem with OpenDAP access to daily rtofs data Von: "Rich Signell" <address@hidden> Datum: Di, 15.12.2009, 16:31 An: "Hendrik Tolman" <address@hidden> "Jordan Alpert" <address@hidden> "John C Warner" <address@hidden> "Brandy Armstrong" <address@hidden> -------------------------------------------------------------------------- Hendrick & Jordan, The USGS Coupled Ocean Atmosphere Wave Sediment Transport (COAWST) forecast model has been broken since Friday of last week because RTOFS access via OPeNDAP is broken. Brandy Armstrong, who works with John Warner, posted the problem to address@hidden but has heard nothing back. I tried calling Avichal yesterday and today, but he is still out of the office on a family emergency. Could someone look into this and fix the problem? We are not the only ones having this problem (as you can see from the response to Brandy's message below). Here's a simple test that illustrates the problem: http://nomads.ncep.noaa.gov:9090/dods/ofs/ofs20091213/daily/rtofs_native_000_atl.ascii?sshgsfc[0][547:1087][24:391] Returns *io error during data send: class java.io.EOFException: null* Thanks Rich On Tue, Dec 15, 2009 at 9:19 AM, Brandy Armstrong <address@hidden>wrote:*I have not received any answers yet. I'll be happy to pass along any information when I receive some.* *I am still not able to load the rtofs data at ** http://nomads.ncep.noaa.gov:9090/dods/ofs/*<http://nomads.ncep.noaa.gov:9090/dods/ofs/> * and I am still receiving Java errors, though not always the same one. Last night using the same code:* %example url="" class="moz-txt-link-freetext" href="http://nomads.ncep.noaa.gov:9090/dods/ofs/ofs',Time_before">http://nomads.ncep.noaa.gov:9090/dods/ofs/ofs',Time_before, '/daily/rtofs_native_024_atl']; nc=mDataset(url); tmp=double(nc{''sshgsfc''}(1,547:1087,24:391)); *I received a different Java message:* Dec 15, 2009 12:31:06 AM ucar.nc2.dods.DODSNetcdfFile <init> INFO: DODSNetcdfFile http://nomads.ncep.noaa.gov:9090/dods/ofs/ofs20091214/daily/rtofs_native_024_atl java.net.SocketException: Connection reset at java.net.SocketInputStream.read(Unknown Source) at java.io.BufferedInputStream.fill(Unknown Source) at java.io.BufferedInputStream.read(Unknown Source) at org.apache.commons.httpclient.HttpParser.readRawLine(HttpParser.java:78) at org.apache.commons.httpclient.HttpParser.readLine(HttpParser.java:106) at org.apache.commons.httpclient.HttpConnection.readLine(HttpConnection.java:1116) at org.apache.commons.httpclient.MultiThreadedHttpConnectionManager$HttpConnectionAdapter.readLine(MultiThreadedHttpConnectionManager.java:1413) at org.apache.commons.httpclient.HttpMethodBase.readStatusLine(HttpMethodBase.java:1973) at org.apache.commons.httpclient.HttpMethodBase.readResponse(HttpMethodBase.java:1735) at org.apache.commons.httpclient.HttpMethodBase.execute(HttpMethodBase.java:1098) at org.apache.commons.httpclient.HttpMethodDirector.executeWithRetry(HttpMethodDirector.java:398) at org.apache.commons.httpclient.HttpMethodDirector.executeMethod(HttpMethodDirector.java:171) at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:397) at org.apache.commons.httpclient.HttpClient.executeMethod(HttpClient.java:323) at opendap.dap.DConnect2.openConnection(DConnect2.java:212) at opendap.dap.DConnect2.getDDS(DConnect2.java:440) at opendap.dap.DConnect2.getDDS(DConnect2.java:420) at ucar.nc2.dods.DODSNetcdfFile.<init>(DODSNetcdfFile.java:202) at ucar.nc2.dataset.NetcdfDataset.acquireDODS(NetcdfDataset.java:804) at ucar.nc2.dataset.NetcdfDataset.openOrAcquireFile(NetcdfDataset.java:699) at ucar.nc2.dataset.NetcdfDataset.openDataset(NetcdfDataset.java:434) at ucar.nc2.dataset.NetcdfDataset.acquireDataset(NetcdfDataset.java:544) at ucar.nc2.dt.grid.GridDataset.open(GridDataset.java:88) at msstate.cstm.data.JDataset.<init>(Unknown Source) Unable to open the dataset: http://nomads.ncep.noaa.gov:9090/dods/ofs/ofs20091214/daily/rtofs_native_024_atl Connection reset *Trying it again just now (9:15 AM) with that same code I received this Java message:* Java exception occurred: java.io.EOFException at java.io.DataInputStream.readInt(Unknown Source) at java.io.DataInputStream.readFloat(Unknown Source) at opendap.dap.Float32PrimitiveVector.deserialize(Float32PrimitiveVector.java:166) at opendap.dap.DVector.deserialize(DVector.java:241) at opendap.dap.DGrid.deserialize(DGrid.java:438) at opendap.dap.DataDDS.readData(DataDDS.java:94) at opendap.dap.DConnect2$DataDDSCommand.process(DConnect2.java:715) at opendap.dap.DConnect2.openConnection(DConnect2.java:257) at opendap.dap.DConnect2.getData(DConnect2.java:699) at opendap.dap.DConnect2.getData(DConnect2.java:979) at ucar.nc2.dods.DODSNetcdfFile.readDataDDSfromServer(DODSNetcdfFile.java:1134) at ucar.nc2.dods.DODSNetcdfFile.readData(DODSNetcdfFile.java:1298) at ucar.nc2.Variable._read(Variable.java:979) at ucar.nc2.Variable.read(Variable.java:778) at ucar.nc2.dataset.VariableDS._read(VariableDS.java:500) at ucar.nc2.Variable.read(Variable.java:778) at ucar.nc2.Variable.read(Variable.java:736) at msstate.cstm.data.JVariable.readVarData(Unknown Source) at msstate.cstm.data.JVariable.readVarData(Unknown Source) Brandy Armstrong (508) 457-2256 address@hidden From: "Gerald Spreitzhofer" <address@hidden> To: "Brandy Armstrong" <address@hidden> Date: 12/15/2009 08:36 AM Subject: Re: [NCEP.List.Nomads-Users] daily rtofs data ------------------------------ Hi Brandy! Have you received any answers so far? I have very similar problems and error messages, using dods, especially since the last 24 hours. Regards, Gerald --------------------------------------- Dr. Gerald Spreitzhofer Institute of Meteorology and Geophysics University of Vienna Althanstrasse 14, UZA2 A-1090 Vienna, Austria Tel.: +43-1-4277-537 38 email: address@hidden --------------------------------------- On Mo, 14.12.2009, 16:44, Brandy Armstrong wrote: |