Hi Huang, Few things.
1), cdh3.4 is a pretty old version. You should thing about upgrading to a more recent version. 2) Have you checked you hosts files? Can you ping CH35 (if it's your host name) from you ZK and other servers? JM 2013/7/2 ch huang <[email protected]>: > i modified all hostname in hadoop&hbase configuration file instead of > IP,but i receive following error ,thanks all > > hbase version is > Version 0.90.6-cdh3u4, > > 13/07/03 11:22:34 INFO zookeeper.ClientCnxn: Session establishment complete > on server 192.168.10.22/192.168.10.22:2281, sessionid = 0x3fa28145010001, > negotiated timeout = 40000 > 13/07/03 11:22:36 ERROR hbase.HServerAddress: Could not resolve the DNS > name of CH35 > java.lang.IllegalArgumentException: hostname can't be null > at java.net.InetSocketAddress.checkHost(Unknown Source) > at java.net.InetSocketAddress.<init>(Unknown Source) > at > org.apache.hadoop.hbase.HServerAddress.getResolvedAddress(HServerAddress.java:108) > at org.apache.hadoop.hbase.HServerAddress.<init>(HServerAddress.java:64) > at > org.apache.hadoop.hbase.zookeeper.RootRegionTracker.dataToHServerAddress(RootRegionTracker.java:82) > at > org.apache.hadoop.hbase.zookeeper.RootRegionTracker.waitRootRegionLocation(RootRegionTracker.java:73) > at > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:841) > at > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:819) > at > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegionInMeta(HConnectionManager.java:950) > at > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:852) > at > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:819) > at > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegionInMeta(HConnectionManager.java:950) > at > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:856) > at > org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:819) > at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:189) > at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:163) > at com.testme.demo.HBaseTest.testInsert(HBaseTest.java:92) > at com.testme.demo.HBaseTest.main(HBaseTest.java:158)
