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Posted to users@activemq.apache.org by SuoNayi <su...@163.com> on 2013/03/05 09:21:03 UTC

How to tune LevelDB store?

Hi, I can find lots of options for tuning KahaDB here,http://activemq.apache.org/kahadb.html.
But there is only one page to describe how to enable LevelDB store.
I need know options like KahaDB such as ensuring every non transactional journal write is followed by a disk sync,
writing indexes asynchronously or not etc.
Can you give me a link to see how to tuning LevelDB store ?




Thanks,
SuoNayi

Re: Re: How to tune LevelDB store?

Posted by Hiram Chirino <hi...@hiramchirino.com>.

We have not yet figured out which are the best nobs to turn for different
work loads.  I suspect as the leveldb store start getting more field usage,
we will start to build up that tuning knowledge base.


On Tue, Mar 5, 2013 at 9:05 PM, SuoNayi <su...@163.com> wrote:

> Thanks Gary, it would be better if there are some tricks for performance
> tune.
>
>
>
>
> At 2013-03-05 20:31:09,"Gary Tully" <ga...@gmail.com> wrote:
> >have a peek at the apollo doco:
> >
> http://activemq.apache.org/apollo/documentation/user-manual.html#LevelDB_Storeto
> >get the full detail.
> >You will need to map those to xbean notation for the 5.8 xml
> configuration.
> >see:
> >
> http://activemq.apache.org/schema/core/activemq-core-5.8.0-schema.html#levelDB
> >
> >
> >On 5 March 2013 08:21, SuoNayi <su...@163.com> wrote:
> >
> >> Hi, I can find lots of options for tuning KahaDB here,
> >> http://activemq.apache.org/kahadb.html.
> >> But there is only one page to describe how to enable LevelDB store.
> >> I need know options like KahaDB such as ensuring every non transactional
> >> journal write is followed by a disk sync,
> >> writing indexes asynchronously or not etc.
> >> Can you give me a link to see how to tuning LevelDB store ?
> >>
> >>
> >>
> >>
> >> Thanks,
> >> SuoNayi
> >
> >
> >
> >
> >--
> >http://redhat.com
> >http://blog.garytully.com
>



-- 

**

*Hiram Chirino*

*Engineering | Red Hat, Inc.*

*hchirino@redhat.com <hc...@redhat.com> | fusesource.com | redhat.com*

*skype: hiramchirino | twitter: @hiramchirino<http://twitter.com/hiramchirino>
*

*blog: Hiram Chirino's Bit Mojo <http://hiramchirino.com/blog/>*

Re:Re: How to tune LevelDB store?

Posted by SuoNayi <su...@163.com>.

Thanks Gary, it would be better if there are some tricks for performance tune.




At 2013-03-05 20:31:09,"Gary Tully" <ga...@gmail.com> wrote:
>have a peek at the apollo doco:
>http://activemq.apache.org/apollo/documentation/user-manual.html#LevelDB_Storeto
>get the full detail.
>You will need to map those to xbean notation for the 5.8 xml configuration.
>see:
>http://activemq.apache.org/schema/core/activemq-core-5.8.0-schema.html#levelDB
>
>
>On 5 March 2013 08:21, SuoNayi <su...@163.com> wrote:
>
>> Hi, I can find lots of options for tuning KahaDB here,
>> http://activemq.apache.org/kahadb.html.
>> But there is only one page to describe how to enable LevelDB store.
>> I need know options like KahaDB such as ensuring every non transactional
>> journal write is followed by a disk sync,
>> writing indexes asynchronously or not etc.
>> Can you give me a link to see how to tuning LevelDB store ?
>>
>>
>>
>>
>> Thanks,
>> SuoNayi
>
>
>
>
>-- 
>http://redhat.com
>http://blog.garytully.com

Re: How to tune LevelDB store?

Posted by Gary Tully <ga...@gmail.com>.

have a peek at the apollo doco:
http://activemq.apache.org/apollo/documentation/user-manual.html#LevelDB_Storeto
get the full detail.
You will need to map those to xbean notation for the 5.8 xml configuration.
see:
http://activemq.apache.org/schema/core/activemq-core-5.8.0-schema.html#levelDB

On 5 March 2013 08:21, SuoNayi <su...@163.com> wrote:

> Hi, I can find lots of options for tuning KahaDB here,
> http://activemq.apache.org/kahadb.html.
> But there is only one page to describe how to enable LevelDB store.
> I need know options like KahaDB such as ensuring every non transactional
> journal write is followed by a disk sync,
> writing indexes asynchronously or not etc.
> Can you give me a link to see how to tuning LevelDB store ?
>
>
>
>
> Thanks,
> SuoNayi

-- 
http://redhat.com
http://blog.garytully.com