Stack, I have checked the example on the given link
http://hbase.apache.org/docs/r0.89.20100726/apidocs/org/apache/hadoop/hbase/client/package-summary.html#package_description <http://hbase.apache.org/docs/r0.89.20100726/apidocs/org/apache/hadoop/hbase/client/package-summary.html#package_description>but it is same as on the other documentation. Secondly I am running hbase in Distributed mode. I am confused with the term Zookeeper ensemble. Do you mean that i set the configuration like this config.set("hbase.zookeeper.quorum", "myserver.mycompany.com:2181"); If yes, then i have tried in this way also but agian getting exceptions when I write this line HTable table = new HTable(config, "myTable"); The Exception details are Aug 31, 2010 7:19:24 PM org.apache.hadoop.hbase.HBaseConfiguration <init> WARNING: instantiating HBaseConfiguration() is deprecated. Please use HBaseConfiguration#create() to construct a plain Configuration Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/zookeeper/KeeperException at org.apache.hadoop.hbase.client.HConnectionManager.getClientZooKeeperWatcher(HConnectionManager.java:176) at org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getZooKeeperWrapper(HConnectionManager.java:1048) at org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRootRegion(HConnectionManager.java:1064) at org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:668) at org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:644) at org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:770) at org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:673) at org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:644) at org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:770) at org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:677) at org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:644) at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:134) at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:111) at MyLittleHBaseClient.main(MyLittleHBaseClient.java:28) Java Result: 1 So kindly give me some details how to resolve this issue. Thanks On Wed, Sep 1, 2010 at 1:15 AM, Stack <st...@duboce.net> wrote: > On Tue, Aug 31, 2010 at 12:54 PM, Shuja Rehman <shujamug...@gmail.com> > wrote: > > Hi Stack, > > I am reading the documentation from the following link > > http://hbase.apache.org/docs/r0.20.6/api/index.html > > > > <http://hbase.apache.org/docs/r0.20.6/api/index.html>and in Example API > > Usage > > they just declare the > > > > HBaseConfiguration config = new HBaseConfiguration(); > > > > but did not tell how to connect to remote server. can u put some line > > of code which should use to connect to remote server?? > > > > Secondly, I am using Cloudera latest release of Hbase, Yes the first > > line is warning but the next line is exception about zoo keeper. > > > > Sounds like you are reading the documentation for 0.20.6 but using the > 0.89.x that is bundled with CDH? If so, the two are not aligned. You > probably need this: > > http://hbase.apache.org/docs/r0.89.20100726/apidocs/overview-summary.html#overview_description > > For how to connect to remote server, you specify zookeeper ensemble. > If you are running standalone, it'll find the in-process zookeeper > instance w/o configuration. Otherwise you are into pseudo-distributed > or distributed modes both of which are covered in the cited URL -- see > where zookeeper ensemble is specified. > > St.Ack > > > *Thanks* > > * > > * > > On Tue, Aug 31, 2010 at 8:11 PM, Stack <st...@duboce.net> wrote: > > > >> On Tue, Aug 31, 2010 at 12:38 AM, Shuja Rehman <shujamug...@gmail.com> > >> wrote: > >> > Hi > >> > I am trying to implement according to documentation and i also added > this > >> > line to connect remote server > >> > > >> > HBaseConfiguration config = new HBaseConfiguration(); > >> > config.set("hbase.master", "myserver.mycompany.com:60000"); > >> > > >> > >> It looks like you are reading old documentation. Make sure you are > >> running latest hbase. Its getting started doc is here: > >> > >> http://hbase.apache.org/docs/r0.20.6/ > >> > >> In particular you point a client at a cluster by configuring the > >> zookeeper ensemble its to use, not hbase.master (Thats how we used to > >> do it way back long ago). > >> > >> It looks like you are using TRUNK. The below is not an exception. > >> Its a WARNING telling you the new way of getting an HBase > >> configuration by doing HBaseConfiguration.create rather than > >> instantiating an instance directly. > >> > >> St.Ack > >> > >> > but I am getting following exception > >> > > >> > WARNING: instantiating HBaseConfiguration() is deprecated. Please use > >> > HBaseConfiguration#create() to construct a plain Configuration > >> > Exception in thread "main" java.lang.NoClassDefFoundError: > >> > org/apache/zookeeper/KeeperException > >> > at > >> > > >> > org.apache.hadoop.hbase.client.HConnectionManager.getClientZooKeeperWatcher(HConnectionManager.java:176) > >> > ... > >> > > >> > Is anything missing?? > >> > > >> > Thanks > >> > > >> > > >> > On Fri, Aug 27, 2010 at 1:33 AM, Jean-Daniel Cryans < > jdcry...@apache.org > >> >wrote: > >> > > >> >> Check the documentation: > >> >> > >> >> > >> >> > >> > http://hbase.apache.org/docs/r0.20.6/api/org/apache/hadoop/hbase/client/package-summary.html#overview > >> >> > >> >> J-D > >> >> > >> >> On Thu, Aug 26, 2010 at 12:41 PM, Shuja Rehman < > shujamug...@gmail.com> > >> >> wrote: > >> >> > Hi All > >> >> > > >> >> > I am new to hbase client API and want to know how to get data from > >> hbase > >> >> > from cleint/remote machine. The target is to develop a java program > >> which > >> >> > should connect to hbase server and then get results from it. > >> >> > > >> >> > Anyone have any example??? > >> >> > > >> >> > Thanks > >> >> > > >> >> > -- > >> >> > Regards > >> >> > Shuja-ur-Rehman Baig > >> >> > http://pk.linkedin.com/in/shujamughal > >> >> > Cell: +92 3214207445 > >> >> > > >> >> > >> > > >> > > >> > > >> > -- > >> > Regards > >> > Shuja-ur-Rehman Baig > >> > http://pk.linkedin.com/in/shujamughal > >> > Cell: +92 3214207445 > >> > > >> > > > > > > > > -- > > Regards > > Shuja-ur-Rehman Baig > > http://pk.linkedin.com/in/shujamughal > > Cell: +92 3214207445 > > > -- Regards Shuja-ur-Rehman Baig http://pk.linkedin.com/in/shujamughal Cell: +92 3214207445
