Turn of Zookeeper

[Saptarshi Guha <sa...@gmail.com>]

Hello,
Is there a way to off turn zookeeper? I know this might not be a good
idea, but I would just like to test some
code that uses Hbase and don't want to deal with setting up and
running Hbase (someone else's problem)

I'm getting
WARN zookeeper.ZooKeeperWrapper: Failed to create /hbase -- check
quorum servers, currently=X:2181
org.apache.zookeeper.KeeperException$ConnectionLossException:
KeeperErrorCode = ConnectionLoss for /hbase

I have two machines, X,Y, X is master, and both X,Y are regions. X
runs a zookeeper. Both have 32GB ram.

Much thanks
Saptarshi

Re: Turn of Zookeeper

[Vaibhav Puranik <vp...@gmail.com>]

Saptarshi,

Current HBase trunk has a patch that can help you with the task.

We have extracted HTableInterface out of HTable. This will allow you to mock
HTableInterface and write your own stub for HTable
(Or use Jmock or easy mock).

Since client's primary interaction with HBase is through HTable, mocking
HTable (now HTableInterface) will serve your purpose.

Please look at - https://issues.apache.org/jira/browse/HBASE-1758

It's scheduled to be released with 0.21

Regards,
Vaibhav Puranik,
Gumgum

On Tue, Aug 25, 2009 at 12:08 PM, Amandeep Khurana <am...@gmail.com> wrote:

> ZK is essential to get hbase going.. Dont think there's a way to avoid
> that.
>
> However, writing unit tests for your code might be a good idea.. See the
> existing test cases to get an idea of how that can be done.
>
>
> Amandeep Khurana
> Computer Science Graduate Student
> University of California, Santa Cruz
>
>
> On Tue, Aug 25, 2009 at 10:06 AM, Saptarshi Guha
> <sa...@gmail.com>wrote:
>
> > Hello,
> > Is there a way to off turn zookeeper? I know this might not be a good
> > idea, but I would just like to test some
> > code that uses Hbase and don't want to deal with setting up and
> > running Hbase (someone else's problem)
> >
> > I'm getting
> > WARN zookeeper.ZooKeeperWrapper: Failed to create /hbase -- check
> > quorum servers, currently=X:2181
> > org.apache.zookeeper.KeeperException$ConnectionLossException:
> > KeeperErrorCode = ConnectionLoss for /hbase
> >
> > I have two machines, X,Y, X is master, and both X,Y are regions. X
> > runs a zookeeper. Both have 32GB ram.
> >
> > Much thanks
> > Saptarshi
> >
>

Re: Turn of Zookeeper

[Amandeep Khurana <am...@gmail.com>]

ZK is essential to get hbase going.. Dont think there's a way to avoid that.

However, writing unit tests for your code might be a good idea.. See the
existing test cases to get an idea of how that can be done.


Amandeep Khurana
Computer Science Graduate Student
University of California, Santa Cruz


On Tue, Aug 25, 2009 at 10:06 AM, Saptarshi Guha
<sa...@gmail.com>wrote:

> Hello,
> Is there a way to off turn zookeeper? I know this might not be a good
> idea, but I would just like to test some
> code that uses Hbase and don't want to deal with setting up and
> running Hbase (someone else's problem)
>
> I'm getting
> WARN zookeeper.ZooKeeperWrapper: Failed to create /hbase -- check
> quorum servers, currently=X:2181
> org.apache.zookeeper.KeeperException$ConnectionLossException:
> KeeperErrorCode = ConnectionLoss for /hbase
>
> I have two machines, X,Y, X is master, and both X,Y are regions. X
> runs a zookeeper. Both have 32GB ram.
>
> Much thanks
> Saptarshi
>