That 127.0.0.1 is for HBase, which means that the root region from HBase's point of view is on the local host (which makes sense because in pseudo-distributed mode the region server runs in the same JVM as the master).
HBase does a reverse lookup on the machine's hostname in order to get its IP address, is your hostname on the HBase server pointing to 127.0.0.1? If so, do change the OS configuration. J-D On Sun, Sep 19, 2010 at 7:09 AM, Orit Alul <[email protected]> wrote: > Hi, > > I'm trying to run the java client using the remote client API vs a remote > machine on which HBase is configured to work in a semi-distributed mode. > When I run the sell on the remote machine everything works just fine (I can > create tables set and get data) > It seems like the client succeeds in connecting with the zookeeper server, > but fails on connecting to the region server. > I tried to debug the client and I found two weird things: > > 1. It seems that the outOfSafeMode is always false. > > 2. When I eliminate the safe mode check a request is sent to the > zookeeper to get the address of the region server > "/hbase/root-region-server". The response address is 127.0.0.1:60020 which is > completely wrong since the region server runs on the remote machine. > Is this a configuration issue? > > Following is the exception I get: > > 10/09/16 14:33:48 INFO zookeeper.ClientCnxn: Server connection successful > org.apache.hadoop.hbase.client.NoServerForRegionException: Timed out trying > to locate root region > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRootRegion(HConnectionManager.java:983) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:625) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:601) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:670) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:630) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:601) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:670) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:634) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:601) > at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:134) > at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:112) > at hbaseclient.HBaseBMClient.<init>(HBaseBMClient.java:23) > at > common.BMManager.createStorageAccordingToClientType(BMManager.java:170) > at common.BMManager.main(BMManager.java:66) > > > Appreciate your assistance and advice, > Thanks, > Orit > >
