Even if HBase is running in standalone mode, the scan operation is still running in another jvm, to be specific, in HMaster process.
So you still have to either put the custom filter jar in $HBASE/lib or set up the $HBASE/conf/hbase-env.sh properly. On Fri, Jun 4, 2010 at 4:37 AM, Raghava Mutharaju <[email protected]> wrote: > The custom filter doesn't need any additional jars. > Another point I forgot to mention is that, I am running this on a single > node (laptop) to test my filter. > > Regards, > Raghava. > > On Thu, Jun 3, 2010 at 4:23 PM, Guilherme Germoglio > <[email protected]>wrote: > >> please check if the jars needed for your custom filter implementation are >> in >> hbase's classpath >> >> On Thu, Jun 3, 2010 at 5:16 PM, Raghava Mutharaju < >> [email protected] >> > wrote: >> >> > Hi all, >> > >> > I wrote a custom filter and used it with scan. I am getting the >> > following exceptions. If I use any built-in filters, it works fine. I >> > searched around and one of the suggestions was to increase the lease >> > timeout. Since it works fine for built-in filters, I am assuming that >> this >> > is not the case. Is it that there is something wrong with my filter >> > implementation? >> > >> > Regards, >> > Raghava. >> > >> > Master log: >> > >> > org.apache.hadoop.hbase.UnknownScannerException: Name: -1 >> > at >> > >> org.apache.hadoop.hbase.regionserver.HRegionServer.next(HRegionServer.java:1889) >> > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> > >> > at >> > >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) >> > at >> > >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) >> > at java.lang.reflect.Method.invoke(Method.java:597) >> > >> > at >> > org.apache.hadoop.hbase.ipc.HBaseRPC$Server.call(HBaseRPC.java:657) >> > at >> > org.apache.hadoop.hbase.ipc.HBaseServer$Handler.run(HBaseServer.java:915) >> > 2010-06-03 16:02:10,775 INFO org.apache.hadoop.ipc.HBaseServer: IPC >> > Server handler 9 on 60770, call next(-1, 1) from 130.108.56.225:61091: >> > error: org.apache.hadoop.hbase.UnknownScannerException: Name: -1 >> > >> > >> > Console: >> > >> > Exception in thread "main" >> > org.apache.hadoop.hbase.client.RetriesExhaustedException: Trying to >> contact >> > region server 130.108.56.225:60770 for region table1,,1274648045785, row >> > '', >> > but failed after 10 attempts. >> > Exceptions: >> > java.io.IOException: Call to /130.108.56.225:60770 failed on local >> > exception: java.io.EOFException >> > java.io.IOException: Call to /130.108.56.225:60770 failed on local >> > exception: java.io.EOFException >> > java.io.IOException: Call to /130.108.56.225:60770 failed on local >> > exception: java.io.EOFException >> > java.io.IOException: Call to /130.108.56.225:60770 failed on local >> > exception: java.io.EOFException >> > java.io.IOException: Call to /130.108.56.225:60770 failed on local >> > exception: java.io.EOFException >> > java.io.IOException: Call to /130.108.56.225:60770 failed on local >> > exception: java.io.EOFException >> > java.io.IOException: Call to /130.108.56.225:60770 failed on local >> > exception: java.io.EOFException >> > java.io.IOException: Call to /130.108.56.225:60770 failed on local >> > exception: java.io.EOFException >> > java.io.IOException: Call to /130.108.56.225:60770 failed on local >> > exception: java.io.EOFException >> > java.io.IOException: Call to /130.108.56.225:60770 failed on local >> > exception: java.io.EOFException >> > >> > at >> > >> > >> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getRegionServerWithRetries(HConnectionManager.java:1055) >> > at >> > >> > >> org.apache.hadoop.hbase.client.HTable$ClientScanner.nextScanner(HTable.java:2003) >> > at >> > >> > >> org.apache.hadoop.hbase.client.HTable$ClientScanner.initialize(HTable.java:1923) >> > at org.apache.hadoop.hbase.client.HTable.getScanner(HTable.java:403) >> > at >> > org.knoesis.reasoning.MR.FilterReadClient.main(FilterReadClient.java:58) >> > >> > Line 58 above has a call to getScanner(CustomFilterInstance) of HTable. >> > >> >> >> >> -- >> Guilherme >> >> msn: [email protected] >> homepage: http://sites.google.com/site/germoglio/ >> > -- Regards Angus
