Dear Sean,
I am getting the below error when i use the netcdf-all jar on my hadoop
project for analysing the nc file . Kindly help me in identifying the issue
.
ucar.httpservices.HTTPException: ucar.httpservices.HTTPException:
org.apache.http.conn.UnsupportedSchemeException: hdfs protocol is not
supported
at ucar.httpservices.HTTPMethod.execute(HTTPMethod.java:335)
at ucar.nc2.dataset.NetcdfDataset.checkIfDods(NetcdfDataset.java:864)
at
ucar.nc2.dataset.NetcdfDataset.disambiguateHttp(NetcdfDataset.java:820)
at
ucar.nc2.dataset.NetcdfDataset.openOrAcquireFile(NetcdfDataset.java:706)
at ucar.nc2.dataset.NetcdfDataset.openDataset(NetcdfDataset.java:427)
at ucar.nc2.dataset.NetcdfDataset.acquireDataset(NetcdfDataset.java:528)
at ucar.nc2.dt.grid.GridDataset.open(GridDataset.java:117)
at ucar.nc2.dt.grid.GridDataset.open(GridDataset.java:103)
at
tvl.bd.climate.recordreader.MyRecordReader.initialize(MyRecordReader.java:46)
at
org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.initialize(MapTask.java:521)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:763)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:364)
at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1190)
at org.apache.hadoop.mapred.Child.main(Child.java:249)
Caused by: ucar.httpservices.HTTPException:
org.apache.http.conn.UnsupportedSchemeException: hdfs protocol is not
supported
at ucar.httpservices.HTTPSession.execute(HTTPSession.java:1136)
at ucar.httpservices.HTTPMethod.execute(HTTPMethod.java:326)
... 16 more
Caused by: org.apache.http.conn.UnsupportedSchemeException: hdfs
protocol is not supported
at
org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:108)
at
org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:353)
at
org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:380)
at
org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:236)
at
org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:184)
at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:88)
at
org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
at
org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
at
org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:71)
at ucar.httpservices.HTTPSession.execute(HTTPSession.java:1134)
Regards,
Sashi
