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From Chris Bates <christopher.andrew.ba...@gmail.com>
Subject Re: Config Problems with HBase and Jetty
Date Wed, 20 Jan 2010 20:38:41 GMT
Ah. good catch...getting more errors still....

  [exec] at
org.apache.hadoop.conf.Configuration.<init>(Configuration.java:210)
     [exec] at
org.apache.hadoop.conf.Configuration.<init>(Configuration.java:197)
     [exec] at
org.apache.hadoop.hbase.HBaseConfiguration.<init>(HBaseConfiguration.java:33)
     [exec] at com.grooveshark.HBaseHandler.handle(HBaseHandler.java:25)
     [exec] at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
     [exec] at org.mortbay.jetty.Server.handle(Server.java:326)
     [exec] at
org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:536)
     [exec] at
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:913)
     [exec] at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:539)
     [exec] at
org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
     [exec] at
org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:405)
     [exec] at
org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
     [exec] at
org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
     [exec]
     [exec] 15:33:31,226 INFO  [24109300@qtp-15206466-0,ZooKeeper] Client
environment:zookeeper.version=3.2.1-808558, built on 08/27/2009 18:48 GMT
     [exec] 15:33:31,227 INFO  [24109300@qtp-15206466-0,ZooKeeper] Client
environment:host.name=crunch2.local
     [exec] 15:33:31,227 INFO  [24109300@qtp-15206466-0,ZooKeeper] Client
environment:java.version=1.6.0_14
     [exec] 15:33:31,228 INFO  [24109300@qtp-15206466-0,ZooKeeper] Client
environment:java.vendor=Sun Microsystems Inc.
     [exec] 15:33:31,228 INFO  [24109300@qtp-15206466-0,ZooKeeper] Client
environment:java.home=/usr/lib/jvm/java-6-sun-1.6.0.14/jre
     [exec] 15:33:31,228 INFO  [24109300@qtp-15206466-0,ZooKeeper] Client
environment:java.class.path=:/var/www/jetty/hbase/build/jettycab/lib/commons-logging-1.1.1.jar:/var/www/jetty/hbase/build/jettycab/lib/fast-md5.jar:/var/www/jetty/hbase/build/jettycab/lib/hadoop-0.20.0-core.jar:/var/www/jetty/hbase/build/jettycab/lib/hbase-0.20.1.jar:/var/www/jetty/hbase/build/jettycab/lib/hbase-default.xml:/var/www/jetty/hbase/build/jettycab/lib/hbase-site.xml:/var/www/jetty/hbase/build/jettycab/lib/jetty-6.1.20.jar:/var/www/jetty/hbase/build/jettycab/lib/jettycab-0.1.0.jar:/var/www/jetty/hbase/build/jettycab/lib/jetty-util-6.1.20.jar:/var/www/jetty/hbase/build/jettycab/lib/log4j-1.2.14.jar:/var/www/jetty/hbase/build/jettycab/lib/mysql-connector-java-5.0.4-bin.jar:/var/www/jetty/hbase/build/jettycab/lib/servlet-api.jar:/var/www/jetty/hbase/build/jettycab/lib/spring-2.5.1.jar:/var/www/jetty/hbase/build/jettycab/lib/zookeeper-3.2.1.jar
     [exec] 15:33:31,229 INFO  [24109300@qtp-15206466-0,ZooKeeper] Client
environment:java.library.path=/usr/lib/jvm/java-6-sun-1.6.0.14/jre/lib/i386/client:/usr/lib/jvm/java-6-sun-1.6.0.14/jre/lib/i386:/usr/lib/jvm/java-6-sun-1.6.0.14/jre/../lib/i386:/usr/java/packages/lib/i386:/lib:/usr/lib
     [exec] 15:33:31,229 INFO  [24109300@qtp-15206466-0,ZooKeeper] Client
environment:java.io.tmpdir=/tmp
     [exec] 15:33:31,230 INFO  [24109300@qtp-15206466-0,ZooKeeper] Client
environment:java.compiler=<NA>
     [exec] 15:33:31,230 INFO  [24109300@qtp-15206466-0,ZooKeeper] Client
environment:os.name=Linux
     [exec] 15:33:31,230 INFO  [24109300@qtp-15206466-0,ZooKeeper] Client
environment:os.arch=i386
     [exec] 15:33:31,231 INFO  [24109300@qtp-15206466-0,ZooKeeper] Client
environment:os.version=2.6.28-11-generic
     [exec] 15:33:31,232 INFO  [24109300@qtp-15206466-0,ZooKeeper] Client
environment:user.name=hadoop
     [exec] 15:33:31,232 INFO  [24109300@qtp-15206466-0,ZooKeeper] Client
environment:user.home=/home/hadoop
     [exec] 15:33:31,233 INFO  [24109300@qtp-15206466-0,ZooKeeper] Client
environment:user.dir=/var/www/jetty/hbase/build/jettycab
     [exec] 15:33:31,236 INFO  [24109300@qtp-15206466-0,ZooKeeper]
Initiating client connection, connectString=localhost:2181
sessionTimeout=60000
watcher=org.apache.hadoop.hbase.client.HConnectionManager$ClientZKWatcher@5fcf29
     [exec] 15:33:31,241 INFO  [24109300@qtp-15206466-0,ClientCnxn]
zookeeper.disableAutoWatchReset is false
     [exec] 15:33:31,291 INFO  [24109300@qtp-15206466-0-SendThread,ClientCnxn]
Attempting connection to server localhost/0:0:0:0:0:0:0:1:2181
     [exec] 15:33:31,302 INFO  [24109300@qtp-15206466-0-SendThread,ClientCnxn]
Priming connection to java.nio.channels.SocketChannel[connected
local=/0:0:0:0:0:0:0:1:41216 remote=localhost/0:0:0:0:0:0:0:1:2181]
     [exec] 15:33:31,320 INFO  [24109300@qtp-15206466-0-SendThread,ClientCnxn]
Server connection successful
     [exec] 15:33:31,379 DEBUG
[24109300@qtp-15206466-0-EventThread,HConnectionManager$ClientZKWatcher]
Got ZooKeeper event, state: SyncConnected, type: None, path: null
     [exec] 15:33:31,386 DEBUG [24109300@qtp-15206466-0-SendThread,ClientCnxn]
Reading reply sessionid:0x326344ba5640005, packet:: clientPath:null
serverPath:null finished:false header:: -8,101  replyHeader:: -8,80,0
 request:: 0,v{},v{},v{}  response:: null
     [exec] 15:33:31,404 DEBUG [24109300@qtp-15206466-0-SendThread,ClientCnxn]
Reading reply sessionid:0x326344ba5640005, packet:: clientPath:null
serverPath:null finished:false header:: 1,1  replyHeader:: 1,81,-110
 request:: '/hbase,,v{s{31,s{'world,'anyone}}},0  response::
     [exec] 15:33:31,438 DEBUG [24109300@qtp-15206466-0-SendThread,ClientCnxn]
Reading reply sessionid:0x326344ba5640005, packet:: clientPath:null
serverPath:null finished:false header:: 2,3  replyHeader:: 2,81,0  request::
'/hbase/safe-mode,F  response::
s{24,24,1263597776438,1263597776438,0,0,0,154868729443319808,0,0,24}
     [exec] 15:33:31,453 DEBUG [24109300@qtp-15206466-0-SendThread,ClientCnxn]
Reading reply sessionid:0x326344ba5640005, packet:: clientPath:null
serverPath:null finished:false header:: 3,4  replyHeader:: 3,81,0  request::
'/hbase/root-region-server,F  response::
#3137322e31362e312e39363a3630303230,s{26,76,1263597776621,1264006609781,1,0,0,0,17,0,26}
     [exec] 15:33:31,454 DEBUG [24109300@qtp-15206466-0,ZooKeeperWrapper]
Read ZNode /hbase/root-region-server got 172.16.1.96:60020
     [exec] 15:33:31,677 DEBUG [24109300@qtp-15206466-0,HBaseClient] The
ping interval is60000ms.
     [exec] 15:33:31,792 DEBUG [24109300@qtp-15206466-0,HBaseClient]
Connecting to /172.16.1.96:60020
     [exec] 15:33:31,839 DEBUG [IPC Client (47) connection to /
172.16.1.96:60020 from an unknown user,HBaseClient] IPC Client (47)
connection to /172.16.1.96:60020 from an unknown user: starting, having
connections 1
     [exec] 15:33:31,843 DEBUG [24109300@qtp-15206466-0,HBaseClient] IPC
Client (47) connection to /172.16.1.96:60020 from an unknown user sending #0
     [exec] 15:33:31,911 DEBUG [IPC Client (47) connection to /
172.16.1.96:60020 from an unknown user,HBaseClient] IPC Client (47)
connection to /172.16.1.96:60020 from an unknown user got value #0
     [exec] 15:33:31,913 DEBUG [24109300@qtp-15206466-0,HbaseRPC] Call:
getProtocolVersion 139
     [exec] 15:33:31,914 DEBUG [24109300@qtp-15206466-0,HBaseClient] IPC
Client (47) connection to /172.16.1.96:60020 from an unknown user sending #1
     [exec] 15:33:31,933 DEBUG [IPC Client (47) connection to /
172.16.1.96:60020 from an unknown user,HBaseClient] IPC Client (47)
connection to /172.16.1.96:60020 from an unknown user got value #1
     [exec] 15:33:31,941 DEBUG [24109300@qtp-15206466-0,HbaseRPC] Call:
getRegionInfo 28
     [exec] 15:33:31,942 DEBUG
[24109300@qtp-15206466-0,HConnectionManager$TableServers]
Found ROOT at 172.16.1.96:60020
     [exec] 15:33:31,944 DEBUG [24109300@qtp-15206466-0,HBaseClient] IPC
Client (47) connection to /172.16.1.96:60020 from an unknown user sending #2
     [exec] 15:33:31,948 DEBUG [IPC Client (47) connection to /
172.16.1.96:60020 from an unknown user,HBaseClient] IPC Client (47)
connection to /172.16.1.96:60020 from an unknown user got value #2
     [exec] 15:33:31,951 DEBUG [24109300@qtp-15206466-0,HbaseRPC] Call:
getClosestRowBefore 8
     [exec] 15:33:32,004 DEBUG
[24109300@qtp-15206466-0,HConnectionManager$TableServers]
Cached location address: 172.16.1.95:60020, regioninfo: REGION => {NAME =>
'.META.,,1', STARTKEY => '', ENDKEY => '', ENCODED => 1028785192, TABLE =>
{{NAME => '.META.', IS_META => 'true', MEMSTORE_FLUSHSIZE => '16384',
FAMILIES => [{NAME => 'historian', VERSIONS => '2147483647', COMPRESSION =>
'NONE', TTL => '604800', BLOCKSIZE => '8192', IN_MEMORY => 'false',
BLOCKCACHE => 'false'}, {NAME => 'info', VERSIONS => '10', COMPRESSION =>
'NONE', TTL => '2147483647', BLOCKSIZE => '8192', IN_MEMORY => 'false',
BLOCKCACHE => 'false'}]}}
     [exec] 15:33:32,006 DEBUG [24109300@qtp-15206466-0,HBaseClient]
Connecting to /172.16.1.95:60020
     [exec] 15:33:32,013 DEBUG [IPC Client (47) connection to /
172.16.1.95:60020 from an unknown user,HBaseClient] IPC Client (47)
connection to /172.16.1.95:60020 from an unknown user: starting, having
connections 2
     [exec] 15:33:32,016 DEBUG [24109300@qtp-15206466-0,HBaseClient] IPC
Client (47) connection to /172.16.1.95:60020 from an unknown user sending #3
     [exec] 15:33:32,018 DEBUG [IPC Client (47) connection to /
172.16.1.95:60020 from an unknown user,HBaseClient] IPC Client (47)
connection to /172.16.1.95:60020 from an unknown user got value #3
     [exec] 15:33:32,020 DEBUG [24109300@qtp-15206466-0,HbaseRPC] Call:
getProtocolVersion 14
     [exec] 15:33:32,021 DEBUG [24109300@qtp-15206466-0,HBaseClient] IPC
Client (47) connection to /172.16.1.95:60020 from an unknown user sending #4
     [exec] 15:33:32,176 DEBUG [IPC Client (47) connection to /
172.16.1.95:60020 from an unknown user,HBaseClient] IPC Client (47)
connection to /172.16.1.95:60020 from an unknown user got value #4
     [exec] 15:33:32,177 DEBUG [24109300@qtp-15206466-0,HbaseRPC] Call:
getClosestRowBefore 157
     [exec] 15:33:32,179 DEBUG
[24109300@qtp-15206466-0,HConnectionManager$TableServers]
Cached location address: 172.16.1.96:60020, regioninfo: REGION => {NAME =>
'Guts,,1262665364102', STARTKEY => '', ENDKEY => '1262239352230', ENCODED =>
413700531, TABLE => {{NAME => 'Guts', FAMILIES => [{NAME => 'search',
VERSIONS => '3', COMPRESSION => 'NONE', TTL => '2147483647', BLOCKSIZE =>
'65536', IN_MEMORY => 'false', BLOCKCACHE => 'true'}, {NAME => 'user',
VERSIONS => '3', COMPRESSION => 'NONE', TTL => '2147483647', BLOCKSIZE =>
'65536', IN_MEMORY => 'false', BLOCKCACHE => 'true'}]}}
     [exec] 15:33:32,189 DEBUG [24109300@qtp-15206466-0,HTable$ClientScanner]
Creating scanner over Guts starting at key ''
     [exec] 15:33:32,190 DEBUG [24109300@qtp-15206466-0,HTable$ClientScanner]
Advancing internal scanner to startKey at ''
     [exec] 15:33:32,191 DEBUG
[24109300@qtp-15206466-0,HConnectionManager$TableServers]
Cache hit for row <> in tableName Guts: location server 172.16.1.96:60020,
location region name Guts,,1262665364102
     [exec] 15:33:32,192 DEBUG [24109300@qtp-15206466-0,HBaseClient] IPC
Client (47) connection to /172.16.1.96:60020 from an unknown user sending #5
     [exec] 15:33:32,221 DEBUG [IPC Client (47) connection to /
172.16.1.96:60020 from an unknown user,HBaseClient] IPC Client (47)
connection to /172.16.1.96:60020 from an unknown user got value #5
     [exec] 15:33:32,222 DEBUG [24109300@qtp-15206466-0,HbaseRPC] Call:
openScanner 30
     [exec] 15:33:32,224 DEBUG [24109300@qtp-15206466-0,HBaseClient] IPC
Client (47) connection to /172.16.1.96:60020 from an unknown user sending #6
     [exec] 15:33:32,250 DEBUG [IPC Client (47) connection to /
172.16.1.96:60020 from an unknown user,HBaseClient] IPC Client (47)
connection to /172.16.1.96:60020 from an unknown user got value #6
     [exec] 15:33:32,253 DEBUG [24109300@qtp-15206466-0,HbaseRPC] Call: next
30
     [exec] 15:33:32,260 DEBUG [24109300@qtp-15206466-0,HBaseClient] IPC
Client (47) connection to /172.16.1.96:60020 from an unknown user sending #7
     [exec] 15:33:32,286 DEBUG [IPC Client (47) connection to /
172.16.1.96:60020 from an unknown user,HBaseClient] IPC Client (47)
connection to /172.16.1.96:60020 from an unknown user got value #7
     [exec] 15:33:32,287 DEBUG [24109300@qtp-15206466-0,HbaseRPC] Call: next
28
     [exec] 15:33:32,288 DEBUG [24109300@qtp-15206466-0,HBaseClient] IPC
Client (47) connection to /172.16.1.96:60020 from an unknown user sending #8
     [exec] 15:33:32,315 DEBUG [IPC Client (47) connection to /
172.16.1.96:60020 from an unknown user,HBaseClient] IPC Client (47)
connection to /172.16.1.96:60020 from an unknown user got value #8
     [exec] 15:33:32,315 DEBUG [24109300@qtp-15206466-0,HbaseRPC] Call: next
27

Then this scanner output seems to continue forever and it just hangs.  I'm
not really sure what the errors mean...


On Wed, Jan 20, 2010 at 3:21 PM, stack <stack@duboce.net> wrote:

> Is zookeeper jar on your CLASSPATH?
>
>  [exec] java.lang.NoClassDefFoundError: org/apache/zookeeper/Watcher
>
> You code looks fine.
>
> St.Ack
>
> On Wed, Jan 20, 2010 at 12:12 PM, Chris Bates <
> christopher.andrew.bates@gmail.com> wrote:
>
> > Hi,
> >
> > We're building an analytics server with HBase using Jetty.  I have
> > experimented with the Thrift API + PHP over the past few days and got it
> > working, but needed the filter functionality which has not been released
> > yet.  So I decided to switch to the Java API and run it with a Jetty
> > server.
> >
> > My Jetty server is setup on crunch2.in.escapemg.com:8888.
> >
> > Hbase is setup on the same machine, with all the configuration settings
> > according to the "Getting Started" guide.  We are using Hbase version
> > 0.20.1.
> >
> > Just doing a quick scanning test with this code:
> >
> > HBaseConfiguration config = new HBaseConfiguration();
> >        HTable table = new HTable(config, "Guts");
> >        Scan s = new Scan();
> >        s.addColumn(Bytes.toBytes("user:"),Bytes.toBytes("theme"));
> >        ResultScanner scanner = table.getScanner(s);
> >        int count = 0;
> >        int limit = 10;
> >        try {
> >                for (Result rr = scanner.next(); rr != null; rr =
> > scanner.next()) {
> >                        if (count <= limit) {
> >                        response.getOutputStream().write( rr.getRow() );
> >                        count++;
> >                        }
> >                }
> >        } finally {
> >                scanner.close();
> >        }
> >
> >
> > I get this error, which states (I think) that the HBase is throwing a
> > connection error:
> >
> > [exec] 14:56:14,197 DEBUG [24109300@qtp-15206466-0,Configuration]
> > java.io.IOException: config()
> >     [exec] at
> > org.apache.hadoop.conf.Configuration.<init>(Configuration.java:210)
> >     [exec] at
> > org.apache.hadoop.conf.Configuration.<init>(Configuration.java:197)
> >     [exec] at
> >
> >
> org.apache.hadoop.hbase.HBaseConfiguration.<init>(HBaseConfiguration.java:33)
> >     [exec] at com.grooveshark.HBaseHandler.handle(HBaseHandler.java:25)
> >     [exec] at
> > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> >     [exec] at org.mortbay.jetty.Server.handle(Server.java:326)
> >     [exec] at
> > org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:536)
> >     [exec] at
> >
> >
> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:913)
> >     [exec] at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:539)
> >     [exec] at
> > org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> >     [exec] at
> > org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:405)
> >     [exec] at
> >
> >
> org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
> >     [exec] at
> >
> >
> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> >     [exec]
> >     [exec] 2010-01-20 14:56:14.697::WARN:  /
> >     [exec] java.lang.NoClassDefFoundError: org/apache/zookeeper/Watcher
> >     [exec] at java.lang.ClassLoader.defineClass1(Native Method)
> >     [exec] at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
> >     [exec] at
> > java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
> >     [exec] at
> java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
> >     [exec] at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
> >     [exec] at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
> >     [exec] at java.security.AccessController.doPrivileged(Native Method)
> >     [exec] at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
> >     [exec] at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
> >     [exec] at
> sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
> >     [exec] at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
> >     [exec] at
> java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
> >     [exec] at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager.getClientZooKeeperWatcher(HConnectionManager.java:151)
> >     [exec] at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getZooKeeperWrapper(HConnectionManager.java:885)
> >     [exec] at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRootRegion(HConnectionManager.java:901)
> >     [exec] at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:580)
> >     [exec] at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:556)
> >     [exec] at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:630)
> >     [exec] at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:589)
> >     [exec] at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:556)
> >     [exec] at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:630)
> >     [exec] at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:593)
> >     [exec] at
> >
> >
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:556)
> >     [exec] at
> org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:127)
> >     [exec] at
> org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:105)
> >     [exec] at com.grooveshark.HBaseHandler.handle(HBaseHandler.java:27)
> >     [exec] at
> > org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> >     [exec] at org.mortbay.jetty.Server.handle(Server.java:326)
> >     [exec] at
> > org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:536)
> >     [exec] at
> >
> >
> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:913)
> >     [exec] at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:539)
> >     [exec] at
> > org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> >     [exec] at
> > org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:405)
> >     [exec] at
> >
> >
> org.mortbay.jetty.bio.SocketConnector$Connection.run(SocketConnector.java:228)
> >     [exec] at
> >
> >
> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> >     [exec] Caused by: java.lang.ClassNotFoundException:
> > org.apache.zookeeper.Watcher
> >     [exec] at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
> >     [exec] at java.security.AccessController.doPrivileged(Native Method)
> >     [exec] at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
> >     [exec] at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
> >     [exec] at
> sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
> >     [exec] at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
> >     [exec] at
> java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
> >     [exec] ... 35 more
> >
> >
> > After doing a mailing list search, it seemed that other configuration
> > problems were fixed by upgrading to 0.20.2 which I have not yet done.  Is
> > this the problem or is there something simple I am overlooking?  I have
> > also
> > added my hbase-site.xml and hbase-default.xml to my lib and conf
> > directories
> > to my working classpath.
> >
> > I am confused because I was able to connect via thrift, and I also have a
> > BulkImporter MapReduce script to load the logging data into HBase that
> > works
> > fine, but have been unable to locate my error in this case.
> >
>

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