Yes very big changes. 0.20 is way faster than any previous version and has a complete new API. The RC2 should be released soon, then if it gets enough votes it will become 0.20.0
J-D On Sat, Aug 15, 2009 at 11:17 AM, zhang jianfeng<zjf...@gmail.com> wrote: > Daniel, > > Thank you for help. BTW does HBase 0.20 have big changes compared to HBase > 0.19 ? > When HBase 0.20 will be released ? > > > Thank you > > Jeff Zhang > > > > On Sat, Aug 15, 2009 at 7:31 AM, Jean-Daniel Cryans > <jdcry...@apache.org>wrote: > >> Jeff, >> >> We integrated Zookeeper in 0.20, 0.19 is not depending on it. >> >> You cannot start HBase programmatically, neither in the shell. Please >> refer to the Getting Started documentation. >> >> J-D >> >> On Sun, Aug 16, 2009 at 12:15 AM, zjffdu<zjf...@gmail.com> wrote: >> > JD. >> > >> > I found there's a script zookeepers.sh in bin folder of HBase trunk. >> > But no such script in HBase 0.19 >> > >> > I am curious to know whether HBase 0.19 do not need zookeeper? >> > >> > >> > 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 >> >> >> > >> > >> >
