Hi,
Which version of HBASE are you using?
In HBASE-0.90.x version i get the following stack trace when the client
tries to connect to the master.
11/07/25 10:13:16 INFO client.HConnectionManager$HConnectionImplementation:
ZooKeeper available but no active master location found
11/07/25 10:13:16 INFO client.HConnectionManager$HConnectionImplementation:
getMaster attempt 6 of 10 failed; retrying after sleep of 4000
org.apache.hadoop.hbase.MasterNotRunningException
at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.
getMaster(HConnectionManager.java:357)
at
org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:94)
at com.sample.ExampleClient.main(ExampleClient.java:33)
Are you not getting this?
Regards
Ram
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-----Original Message-----
From: Takuya UESHIN [mailto:[email protected]]
Sent: Sunday, July 24, 2011 7:21 PM
To: [email protected]
Subject: Re: problem when change zookeeper.znode.parent
Thanks for reply.
Yes, it was using a default.
I paste the stacktrace where it was hung.
Object.wait(long) line: not available [native method]
RootRegionTracker(ZooKeeperNodeTracker).blockUntilAvailable(long) line: 122
RootRegionTracker.waitRootRegionLocation(long) line: 73
HConnectionManager$HConnectionImplementation.locateRegion(byte[],
byte[], boolean) line: 578
HConnectionManager$HConnectionImplementation.locateRegion(byte[],
byte[]) line: 558
HConnectionManager$HConnectionImplementation.locateRegionInMeta(byte[],
byte[], byte[], boolean, Object) line: 687
HConnectionManager$HConnectionImplementation.locateRegion(byte[],
byte[], boolean) line: 589
HConnectionManager$HConnectionImplementation.locateRegion(byte[],
byte[]) line: 558
HConnectionManager$HConnectionImplementation.locateRegionInMeta(byte[],
byte[], byte[], boolean, Object) line: 687
HConnectionManager$HConnectionImplementation.locateRegion(byte[],
byte[], boolean) line: 593
HConnectionManager$HConnectionImplementation.locateRegion(byte[],
byte[]) line: 558
HTable.<init>(Configuration, byte[]) line: 171
HTable.<init>(Configuration, String) line: 145
HBaseTest.test() line: 45
Is this useful for you?
Thanks!
2011/7/24 Stack <[email protected]>:
> I agree that it should throw an exception.
>
> Was it using a default? Can you tell where it was hung?
>
> St.Ack
>
> On Sat, Jul 23, 2011 at 6:38 AM, Takuya UESHIN <[email protected]>
wrote:
>> Hi,
>>
>> I manage HBase cluster changing configuration like
>>
>> <property>
>> <name>zookeeper.znode.parent</name>
>> <value>/master</value>
>> </property>
>>
>> for a replication purpose.
>>
>> When I wrote a client application but made mistake that I forgot to
>> add the configuration above,
>> I was kept waiting because ZooKeeper didn't response.
>>
>> I'd expect that some exception should be thrown, or are there any
>> reasons not to throw?
>>
>> Thanks!
>>
>> --
>> Takuya UESHIN
>> Tokyo, Japan
>>
>> http://twitter.com/ueshin
>>
>
--
Takuya UESHIN
Tokyo, Japan
http://twitter.com/ueshin
