Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
HBase, mail # user - Local RegionServer vs JUnit?


Copy link to this message
-
Re: Local RegionServer vs JUnit?
Jean-Marc Spaggiari 2012-11-08, 12:59
Ok. So I might be totally safe if I "simply" disconnect this node from
the network.

Merci.

I will re-run that today.

JM

2012/11/8, Nicolas Liochon <[EMAIL PROTECTED]>:
> Yes, the tests write in /tmp & in a subdirectory of the builds. Having a
> different user for dev & prod would secure this as well ;-)
>
>
> On Thu, Nov 8, 2012 at 1:04 PM, Jean-Marc Spaggiari
> <[EMAIL PROTECTED]
>> wrote:
>
>> Thanks for the reply.
>>
>> That was all what was thinking about (port number, directory, bugs,
>> etc.) regarding running the tetsts on the local node... So seems it's
>> a good thing I stoped them.
>>
>> If I stop my local datanode/region server, then bring down my network
>> interface before I run the tests, I should be fine, right? I'm running
>> the tests with my own user while hbase and hadoop are both running for
>> a their own. I don't think there is a risk for the local test to fine
>> and write on the local HBase/Hadoop files.
>>
>> JM
>>
>> 2012/11/8, Nicolas Liochon <[EMAIL PROTECTED]>:
>> > Today, at this time of writing, it should be ok: the tests write in a
>> > specific directory, and the ports are dynamic. But it's not without
>> danger:
>> > what if tomorrow someone creates a bug and hardcodes a port already
>> > used
>> by
>> > your cluster ? It's unlikely; but it happened in the past. As well, the
>> CPU
>> > & memory used by the tests won't be available to your datanode /
>> > regionserver, so you doing a kind of load test on this node...
>> >
>> > N.
>> >
>> >
>> > On Thu, Nov 8, 2012 at 12:26 PM, Jean-Marc Spaggiari <
>> > [EMAIL PROTECTED]> wrote:
>> >
>> >> Hi,
>> >>
>> >> My computer is hosting a region server and a datanode for a 8 nodes
>> >> cluster.
>> >>
>> >> Now, I would like to run the JUnit tests locally too.
>> >>
>> >> Is there going to be any conflict between my local regionserver and
>> >> the HBase tests? Is there any risk for my data if I do that?
>> >>
>> >> Even if I turn my local region server off, since there is already a
>> >> zookeeper on the network, will again the local test be a risk for the
>> >> cluster?
>> >>
>> >> Thanks,
>> >>
>> >> JM
>> >>
>> >
>>
>