Liu, What's your cluster hardware like and how many machines?
What's your HBase configuration? Which version of HBase? Did you meet the requirements stated here http://hadoop.apache.org/hbase/docs/r0.19.0/api/overview-summary.html#overview_description? Have you look in your region servers logs and data node logs and do you see errors stated in the Troubleshooting page of the wiki? ( http://wiki.apache.org/hadoop/Hbase/Troubleshooting) Thanks! J-D On Mon, Feb 23, 2009 at 1:31 AM, Liu Yan <[email protected]> wrote: > hi, > When we run the java client to add data to hbase, > from the beginnng we can add the data to hbase. But running for some times, > when the client tries to add a record to hbase, it shows the exception: > > org.apache.hadoop.hbase.client.RetriesExhaustedException: Trying to contact > re > gion server Some server for region , row '176207513941646000', but failed > after > 11 attempts. > Exceptions: > java.io.IOException: HRegionInfo was null or empty in .META. > java.io.IOException: HRegionInfo was null or empty in .META. > java.io.IOException: HRegionInfo was null or empty in .META. > java.io.IOException: HRegionInfo was null or empty in .META. > java.io.IOException: HRegionInfo was null or empty in .META. > java.io.IOException: HRegionInfo was null or empty in .META. > java.io.IOException: HRegionInfo was null or empty in .META. > java.io.IOException: HRegionInfo was null or empty in .META. > java.io.IOException: HRegionInfo was null or empty in .META. > java.io.IOException: HRegionInfo was null or empty in .META. > > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getReg > ionLocationForRowWithRetries(HConnectionManager.java:900) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.proces > sBatchOfRows(HConnectionManager.java:915) > at > org.apache.hadoop.hbase.client.HTable.flushCommits(HTable.java:1372) > at org.apache.hadoop.hbase.client.HTable.commit(HTable.java:1316) > at org.apache.hadoop.hbase.client.HTable.commit(HTable.java:1296) > > Could anybody help me out of this? > > Regards, > Yan >
