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Posted to dev@kylin.apache.org by 杨海乐 <ya...@letv.com> on 2016/07/17 13:16:11 UTC
how to update kylin from 1.1.1 to kylin1.5.2
We realize that the new Kylin version brings great performance
improvement.So we decide to update our old kylin. I have read the doc about
kylin upgrade. In some step,I feel puzzled.
1. Kylin 1.5.1 is not backward compatible in terms of metadata ( in
upgrade doc ).But I see Kylin1.5.0's release announcement : This version is
not backward compatible. The format of cube and metadata has been refactored
in order to get times of performance improvement. We recommend this version,
but does not suggest upgrade from previous deployment directly. Is kylin
metadata changed twice in the two versions ?
2. If I upgrade Kylin1.1.1 to Kylin1.5.1, In hybrid model Old cube
segments built in kylin1.1.1 will still be built(only fresh) in old build
engine and have their old cube metadata,new segments of old cubes can use
all functions of new version. Is there anything wrong ?
--
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Re: how to update kylin from 1.1.1 to kylin1.5.2
Posted by 杨海乐 <ya...@letv.com>.
Thx,In the old kylin server some cube is very large. If I upgrade kylin
with throwing away these cubes,It will take long time to build. I build a
mini cluster to test my steps. ,thinks for your help.
--
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Re: how to update kylin from 1.1.1 to kylin1.5.2
Posted by Li Yang <li...@apache.org>.
The easiest way out is rebuild your cube using v1.5
If you really want to go the tough path, you can upgrade to v1.3 first,
then upgrade to 1.5 using hybrid to keep the old cubes in old engine and
concatenate copies of the old cubes that runs new engine.
Good luck!
Yang
On Sun, Jul 17, 2016 at 9:16 PM, 杨海乐 <ya...@letv.com> wrote:
> We realize that the new Kylin version brings great performance
> improvement.So we decide to update our old kylin. I have read the doc about
> kylin upgrade. In some step,I feel puzzled.
> 1. Kylin 1.5.1 is not backward compatible in terms of metadata ( in
> upgrade doc ).But I see Kylin1.5.0's release announcement : This version is
> not backward compatible. The format of cube and metadata has been
> refactored
> in order to get times of performance improvement. We recommend this
> version,
> but does not suggest upgrade from previous deployment directly. Is kylin
> metadata changed twice in the two versions ?
> 2. If I upgrade Kylin1.1.1 to Kylin1.5.1, In hybrid model Old cube
> segments built in kylin1.1.1 will still be built(only fresh) in old build
> engine and have their old cube metadata,new segments of old cubes can use
> all functions of new version. Is there anything wrong ?
>
> --
> View this message in context:
> http://apache-kylin.74782.x6.nabble.com/how-to-update-kylin-from-1-1-1-to-kylin1-5-2-tp5337.html
> Sent from the Apache Kylin mailing list archive at Nabble.com.
>