are you sure you have that column in your data? If you are searching for a column that doesnt exist or is very very very sparse, the scanner will spend a lot of time searching only to find nothing, thus ending up with these kinds of exceptions....
On Fri, Jun 26, 2009 at 12:35 PM, llpind<[email protected]> wrote: > > This exception does not happen if I remove the addColumn, and leave only > addFamily (linkScan.addFamily(Bytes.toBytes("type")) . > > also, forgot I also have start and stop rows set: > > > > Scan linkScan = new Scan();. > linkScan.addColumn(Bytes.toBytes("type"), Bytes.toBytes("ELECTRONICS")); > linkScan.setStartRow (Bytes.toBytes(e + "|")); > linkScan.setStopRow (Bytes.toBytes(e + " ")); > ResultScanner scanner = tblEntity.getScanner(linkScan); > for (Result linkRowResult : scanner ) { > String row = Bytes.toString(linkRowResult.getRow()); > } > > > > > llpind wrote: >> >> Hey, >> >> I'm doing the following to get a scanner on a tall table: >> >> Scan linkScan = new Scan();. >> linkScan.addColumn(Bytes.toBytes("type"), Bytes.toBytes("ELECTRONICS")); >> ResultScanner scanner = tblEntity.getScanner(linkScan); >> for (Result linkRowResult : scanner ) { >> String row = Bytes.toString(linkRowResult.getRow()); >> } >> >> >> ================================================================ >> at org.apache.hadoop.util.RunJar.main(RunJar.java:156) >> Caused by: org.apache.hadoop.hbase.UnknownScannerException: >> org.apache.hadoop.hbase.UnknownScannerException: -2823498412219891315 >> at >> org.apache.hadoop.hbase.regionserver.HRegionServer.close(HRegionServer.java:1894) >> at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >> at java.lang.reflect.Method.invoke(Method.java:597) >> at >> org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:643) >> at >> org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:913) >> >> at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native >> Method) >> at >> sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) >> at >> sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) >> at java.lang.reflect.Constructor.newInstance(Constructor.java:513) >> at >> org.apache.hadoop.hbase.RemoteExceptionHandler.decodeRemoteException(RemoteExceptionHandler.java:94) >> at >> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getRegionServerWithRetries(HConnectionManager.java:928) >> at >> org.apache.hadoop.hbase.client.HTable$ClientScanner.nextScanner(HTable.java:1764) >> at >> org.apache.hadoop.hbase.client.HTable$ClientScanner.next(HTable.java:1859) >> at >> org.apache.hadoop.hbase.client.HTable$ClientScanner$1.hasNext(HTable.java:1915) >> ... 8 more >> >> >> > > -- > View this message in context: > http://www.nabble.com/Scanner-exceptions-in-.20-tp24225950p24226108.html > Sent from the HBase User mailing list archive at Nabble.com. > >
