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From Lucky Sharma <goku0...@gmail.com>
Subject Re: Streaming In Solr
Date Mon, 03 Dec 2018 11:36:21 GMT
Hi Joel,
Thanks for the info :)
On Wed, Nov 14, 2018 at 8:13 PM Joel Bernstein <joelsolr@gmail.com> wrote:
>
> The implementation is as follows:
>
> 1) There are "stream sources" that generate results from Solr Cloud
> collections. Some of these include: search, facet, knnSearch, random,
> timeseries, nodes, sql etc...
> 2) There are "stream decorators" that wrap stream sources and operated over
> the result set tuples. Some of these decorators operate over sorted result
> sets and don't need to keep much data in memory. For example the innerJoin
> stream decorator merge joins two sorted streams of tuples. Other stream
> decorators read data into memory and perform operations entirely in memory.
> An example of this is the sort stream decorator.
> 3) The are "stream evaluators" that evaluate expressions over the data.
> This includes math expressions. These expressions can operate in both a
> streaming context using the "select" expression or an in memory context
> using the "let" expression to set variables and operate of vectors and
> matrices in memory.
>
> But basically you can think of it as decorators operating over streams of
> data.
>
>
>
>
>
> Joel Bernstein
> http://joelsolr.blogspot.com/
>
>
> On Wed, Nov 14, 2018 at 3:26 AM Lucky Sharma <goku0910@gmail.com> wrote:
>
> > Hi Prakhar,
> > Thanks for the reply, But What I am actually curious to know how is it
> > implemented Internally?
> > On Wed, Nov 14, 2018 at 12:47 PM Prakhar Nigam
> > <prakhar.nigam@mahindracomviva.com> wrote:
> > >
> > > HI Lucky Prakhar here
> > >
> > > we have met at a training at Mahindra Comviva.  I have found this
> > article it may be a little helpful
> > >
> > >
> > https://medium.com/@sarkaramrit2/getting-started-with-streaming-expressions-in-apache-solr-b49111a417e3
> > >
> > >
> > >
> > >
> > >
> > > Regards,
> > >
> > > Prakhar
> > >
> > >
> > >
> > > From: Lucky Sharma<mailto:goku0910@gmail.com>
> > > Sent: Wednesday, November 14, 2018 9:25 AM
> > > To: solr-user@lucene.apache.org<mailto:solr-user@lucene.apache.org>
> > > Subject: Streaming In Solr
> > >
> > >
> > >
> > > Hi I have some doubt regarding how the streaming expressions and
> > > parallel SQL queries are evaluated in SOLR, I tried to dig deep in the
> > > code but wasn't able to find much, A little help will be much
> > > appreciated
> > >
> > > --
> > > Warm Regards,
> > >
> > > Lucky Sharma
> > > Contact No :+91 9821559918
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> >
> > --
> > Warm Regards,
> >
> > Lucky Sharma
> > Contact No :+91 9821559918
> >



-- 
Warm Regards,

Lucky Sharma
Contact No :+91 9821559918

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