On Thu, Dec 17, 2009 at 10:44 AM, Xueling Shu <[email protected]>wrote:
> Hi there: > > I followed the tutorial and set up a standalone environment, but then > experienced some problems. > > 1. Whenever I executed "start-hbase.sh", an exception will be thrown. The > server can still be started. But if I know how to get rid of the exception > that would be great. > > localhost: starting zookeeper, logging to > > /home/xshu/tools/hadoop/hbase-0.20.2/bin/../logs/hbase-xshu-zookeeper-carolina.out > starting master, logging to > > /home/xshu/tools/hadoop/hbase-0.20.2/bin/../logs/hbase-xshu-master-carolina.out > java.io.IOException: > org.apache.zookeeper.KeeperException$NoNodeException: KeeperErrorCode = > NoNode for /hbase/master > This is transient exception that shows on startup. Its harmless. Its not logged in head of the 0.20 branch IIRC. > > > 2. I created a table and populated some data. But whenever I tried to > disable the table, the following exception is thrown: > > 09/12/17 10:20:40 DEBUG client.HConnectionManager$TableServers: Cache hit > for row <> in tableName .META.: location server 10.10.6.244:42752, > location > region name .META.,,1 > 09/12/17 10:20:40 DEBUG client.HConnectionManager$TableServers: > Rowscanned=1, rowsOffline=0 > 09/12/17 10:20:40 DEBUG client.HBaseAdmin: Sleep. Waiting for all regions > to > be disabled from Genome > 09/12/17 10:20:44 DEBUG client.HBaseAdmin: Wake. Waiting for all regions to > be disabled from Genome > NativeException: org.apache.hadoop.hbase.RegionException: Retries > exhausted, > it took too long to wait for the table Genome to be disabled. > Yeah, enable/disable is flakey (See https://issues.apache.org/jira/browse/HBASE-1636). Do it a few times and it usually works eventually. To be fixed in 0.21. St.Ack
