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From Tâm Nguyễn Mạnh <nguyenmanhtam...@gmail.com>
Subject Re: Lucene text index persistent ?
Date Thu, 21 Mar 2019 07:26:11 GMT
Hi,

I tried to restart ignite node with persistent cache that have text index.
After restarted, text query return nothing. I guess because of in memory
lucene index was gone. What do i need to do to sort this out?

On Thu, Mar 21, 2019 at 12:48 AM Denis Magda <dmagda@apache.org> wrote:

> I think that we as the community should consider discontinuing the
> full-text search support. It goes with many limitations and not widely
> used. The market is flooded with many products designed for full-text
> search scenarios.
>
> -
> Denis
>
>
> On Wed, Mar 20, 2019 at 3:44 AM Dmitriy Pavlov <dpavlov@apache.org> wrote:
>
> > +1 for keeping indexes as is. Moreover, sorry for off-topic Lucene is not
> > modular (Jigsaw-compliant), and having this dependency in ignite-indexing
> > make this jar also Java module - incompliant.
> >
> > ср, 20 мар. 2019 г. в 13:15, Maxim Muzafarov <maxmuzaf@gmail.com>:
> >
> > > Hello,
> > >
> > > The link [1] is the issue with Persistence for text indices.
> > >
> > > AFAIK, the issue is very difficult with their implementation and has a
> > > doubtful performance improvement. One of the most obvious
> > > disadvantages of persisted Lucene indexes can be that they will
> > > dramatically slow down the node start time. So, probably, better to
> > > keep them in-memory only.
> > >
> > > [1] https://issues.apache.org/jira/browse/IGNITE-5371
> > >
> > > On Wed, 20 Mar 2019 at 12:31, Ilya Kasnacheev <
> ilya.kasnacheev@gmail.com
> > >
> > > wrote:
> > > >
> > > > Hello!
> > > >
> > > > - Lucene indexes are not persistent and there are currently no plans
> to
> > > > make them persistent.
> > > > - I could say more about that ticket have you actually linked to it.
> > > >
> > > > Regards,
> > > > --
> > > > Ilya Kasnacheev
> > > >
> > > >
> > > > ср, 20 мар. 2019 г. в 09:23, Tâm Nguyễn Mạnh <
> > nguyenmanhtam123@gmail.com
> > > >:
> > > >
> > > > > Hi Igniters,
> > > > >
> > > > > Since Ignite have native persistent option to store data into disk,
> > > but not
> > > > > text indexes. I saw this issue marked as Won't Fix. May I know the
> > > reason
> > > > > we are not going to store text indexes into disk for now ?
> > > > >
> > > > > --
> > > > > Thanks & Best Regards
> > > > >
> > > > > Tam, Nguyen Manh
> > > > >
> > >
> >
>


-- 
Thanks & Best Regards

Tam, Nguyen Manh

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