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From Chris Bates <christopher.andrew.ba...@gmail.com>
Subject Re: HBase 0.20.1 Distributed Install Problems
Date Tue, 10 Nov 2009 04:10:17 GMT
Another interesting data point.  We tried applying this fix (to explicitly
set the master):
http://osdir.com/ml/hbase-user-hadoop-apache/2009-05/msg00321.html

But when I log in to the master node, it takes really long to submit a query
and I get this in response:
hbase(main):001:0> list
NativeException: org.apache.hadoop.hbase.client.RetriesExhaustedException:
Trying to contact region server null for region , row '', but failed after 5
attempts.
Exceptions:
org.apache.hadoop.hbase.client.NoServerForRegionException: Timed out trying
to locate root region
org.apache.hadoop.hbase.client.NoServerForRegionException: Timed out trying
to locate root region
org.apache.hadoop.hbase.client.NoServerForRegionException: Timed out trying
to locate root region
org.apache.hadoop.hbase.client.NoServerForRegionException: Timed out trying
to locate root region
org.apache.hadoop.hbase.client.NoServerForRegionException: Timed out trying
to locate root region

from org/apache/hadoop/hbase/client/HConnectionManager.java:1001:in
`getRegionServerWithRetries'
 from org/apache/hadoop/hbase/client/MetaScanner.java:55:in `metaScan'
from org/apache/hadoop/hbase/client/MetaScanner.java:28:in `metaScan'
 from org/apache/hadoop/hbase/client/HConnectionManager.java:432:in
`listTables'
from org/apache/hadoop/hbase/client/HBaseAdmin.java:127:in `listTables'
 from sun/reflect/NativeMethodAccessorImpl.java:-2:in `invoke0'
from sun/reflect/NativeMethodAccessorImpl.java:39:in `invoke'
 from sun/reflect/DelegatingMethodAccessorImpl.java:25:in `invoke'
from java/lang/reflect/Method.java:597:in `invoke'
 from org/jruby/javasupport/JavaMethod.java:298:in
`invokeWithExceptionHandling'
from org/jruby/javasupport/JavaMethod.java:259:in `invoke'
 from org/jruby/java/invokers/InstanceMethodInvoker.java:36:in `call'
from org/jruby/runtime/callsite/CachingCallSite.java:253:in `cacheAndCall'
 from org/jruby/runtime/callsite/CachingCallSite.java:72:in `call'
from org/jruby/ast/CallNoArgNode.java:61:in `interpret'
 from org/jruby/ast/ForNode.java:104:in `interpret'
... 116 levels...
from
opt/hadoop/hbase_minus_0_dot_20_dot_1/bin/$_dot_dot_/bin/hirb#start:-1:in
`call'
 from org/jruby/internal/runtime/methods/DynamicMethod.java:226:in `call'
from org/jruby/internal/runtime/methods/CompiledMethod.java:211:in `call'
 from org/jruby/internal/runtime/methods/CompiledMethod.java:71:in `call'
from org/jruby/runtime/callsite/CachingCallSite.java:253:in `cacheAndCall'
 from org/jruby/runtime/callsite/CachingCallSite.java:72:in `call'
from opt/hadoop/hbase_minus_0_dot_20_dot_1/bin/$_dot_dot_/bin/hirb.rb:497:in
`__file__'
 from opt/hadoop/hbase_minus_0_dot_20_dot_1/bin/$_dot_dot_/bin/hirb.rb:-1:in
`load'
from org/jruby/Ruby.java:577:in `runScript'
 from org/jruby/Ruby.java:480:in `runNormally'
from org/jruby/Ruby.java:354:in `runFromMain'
 from org/jruby/Main.java:229:in `run'
from org/jruby/Main.java:110:in `run'
 from org/jruby/Main.java:94:in `main'
from /opt/hadoop/hbase-0.20.1/bin/../bin/hirb.rb:338:in `list'
 from (hbase):2hbase(main):002:0>


On Mon, Nov 9, 2009 at 10:52 PM, Chris Bates <
christopher.andrew.bates@gmail.com> wrote:

> thanks for your response Sujee.  These boxes are all on an internal DNS and
> they all resolve.
>
> one of my co-workers apparently can log into his box and submit jobs, but
> me or anyone else is still unable to log in.  Does Hbase allow concurrent
> connections?  In Hive I remember having to configure the metastore to be in
> server mode if multiple people were using it.
>
>
> On Mon, Nov 9, 2009 at 10:13 PM, Sujee Maniyam <sujee@sujee.net> wrote:
>
>> > [hadoop@crunch hbase-0.20.1]$ bin/start-hbase.sh
>> >
>> > crunch2: Warning: Permanently added 'crunch2' (RSA) to the list of known
>> > hosts.
>>
>>
>> is your SSH setup correctly?  From master, you need to be able to
>> login to all slaves/regionservers without password
>>
>> And I see you are using short hostnames (crunch2, crunch3), do they
>> all resolve correctly?  or you need to update /etc/hosts to resolve
>> these to an IP address on all machines.
>>
>> regards
>> Sujee Maniyam
>> --
>> http://sujee.net
>>
>
>

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