Do I have to start HBase in shell ? Can I start it using Java API ? Thank you.
Jeff zhang -----Original Message----- From: jdcry...@gmail.com [mailto:jdcry...@gmail.com] On Behalf Of Jean-Daniel Cryans Sent: 2009年8月13日 4:18 To: hbase-user@hadoop.apache.org Subject: Re: Error when run HBase Java Example Jeff, Did you start HBase? It also starts zookeeper on localhost for you. J-D On Thu, Aug 13, 2009 at 4:18 AM, zhang jianfeng<zjf...@gmail.com> wrote: > Hi all, > > I am a newbie to HBase, when I run the HBase Java Example on the get > started. > > I meet some errors : > > /************************************************************************************************************************/ > 2009-08-13 16:11:22,093 WARN [main] zookeeper.ZooKeeperWrapper(351): Failed > to create /hbase -- check quorum servers, currently=localhost:21810 > org.apache.zookeeper.KeeperException$ConnectionLossException: > KeeperErrorCode = ConnectionLoss for /hbase > at org.apache.zookeeper.KeeperException.create(KeeperException.java:90) > at org.apache.zookeeper.KeeperException.create(KeeperException.java:42) > at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:522) > at > org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.ensureExists(ZooKeeperWrapper.java:342) > at > org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.ensureParentExists(ZooKeeperWrapper.java:365) > at > org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.checkOutOfSafeMode(ZooKeeperWrapper.java:478) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRootRegion(HConnectionManager.java:845) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:515) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:491) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:565) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:524) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:491) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:565) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:528) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:491) > at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:123) > at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:101) > at HBaseExample.main(HBaseExample.java:19) > 2009-08-13 16:11:22,108 DEBUG [main] > client.HConnectionManager$TableServers(852): Sleeping 5000ms, waiting for > root region. > 2009-08-13 16:11:27,827 WARN [main] zookeeper.ZooKeeperWrapper(351): Failed > to create /hbase -- check quorum servers, currently=localhost:21810 > org.apache.zookeeper.KeeperException$ConnectionLossException: > KeeperErrorCode = ConnectionLoss for /hbase > at org.apache.zookeeper.KeeperException.create(KeeperException.java:90) > at org.apache.zookeeper.KeeperException.create(KeeperException.java:42) > at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:522) > at > org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.ensureExists(ZooKeeperWrapper.java:342) > at > org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.ensureParentExists(ZooKeeperWrapper.java:365) > at > org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.checkOutOfSafeMode(ZooKeeperWrapper.java:478) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRootRegion(HConnectionManager.java:845) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:515) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:491) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:565) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:524) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:491) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:565) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:528) > at > org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:491) > at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:123) > at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:101) > at HBaseExample.main(HBaseExample.java:19) > 2009-08-13 16:11:27,827 DEBUG [main] > client.HConnectionManager$TableServers(852): Sleeping 5000ms, waiting for > root region. > > /************************************************************************************************************************/ > > > It seems zookeeper related, do I need to configure the zookeeper ? > > Anyone have any ideas ? > > > Thank you in advance. > > > Jeff zhang >
