MoreLikeThis does not work

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MoreLikeThis does not work

Nehemia Litterat
Hi,
Any help will be appreciated

Using solr 8.2

I created a core using

./solr create -c


imported example docs using

* curl 'http://localhost:32576/solr/playground/update?commit=true
<http://localhost:32576/solr/playground/update?commit=true>' --data-binary
@/home/vagrant/books.csv -H 'Content-type:application/csv'*

the data is the sample data coming with solr

I did not change anything else in the configuration

trying to add *mlt=true&mlt.fl=name* to my query did not yield any result

*http://localhost:8983/solr/playground/select?mlt.fl=name&mlt=true&q=*%3A*
<http://localhost:8983/solr/playground/select?mlt.fl=name&mlt=true&q=*%3A*>*


I always get

"moreLikeThis":{ "0553573403":{"numFound":0,"start":0,"docs":[] }}

in the end of my results

this is the full result

 {
"responseHeader":{ "status":0, "QTime":3, "params":{ "q":"*:*", "mlt":"true",
"mlt.fl":"name", "_":"1577018250160"}}, "response":{"numFound":10,"start":0
,"docs":[ { "id":"0553573403", "cat":["book"], "name":["A Game of Thrones"],
"price":[7.99], "inStock":[true], "author":["George R.R. Martin"], "series_t
":"A Song of Ice and Fire", "sequence_i":1, "genre_s":"fantasy", "_version_
":1653437692236529664}, { "id":"0553579908", "cat":["book"], "name":["A
Clash of Kings"], "price":[7.99], "inStock":[true], "author":["George R.R.
Martin"], "series_t":"A Song of Ice and Fire", "sequence_i":2, "genre_s":
"fantasy", "_version_":1653437692242821120}, { "id":"055357342X", "cat":[
"book"], "name":["A Storm of Swords"], "price":[7.99], "inStock":[true], "
author":["George R.R. Martin"], "series_t":"A Song of Ice and Fire", "
sequence_i":3, "genre_s":"fantasy", "_version_":1653437692243869696}, { "id
":"0553293354", "cat":["book"], "name":["Foundation"], "price":[7.99], "
inStock":[true], "author":["Isaac Asimov"], "series_t":"Foundation Novels",
"sequence_i":1, "genre_s":"scifi", "_version_":1653437692244918272}, { "id":
"0812521390", "cat":["book"], "name":["The Black Company"], "price":[6.99],
"inStock":[false], "author":["Glen Cook"], "series_t":"The Chronicles of
The Black Company", "sequence_i":1, "genre_s":"fantasy", "_version_":
1653437692244918273}, { "id":"0812550706", "cat":["book"], "name":["Ender's
Game"], "price":[6.99], "inStock":[true], "author":["Orson Scott Card"], "
series_t":"Ender", "sequence_i":1, "genre_s":"scifi", "_version_":
1653437692245966848}, { "id":"0441385532", "cat":["book"], "name":["Jhereg"],
"price":[7.95], "inStock":[false], "author":["Steven Brust"], "series_t":"Vlad
Taltos", "sequence_i":1, "genre_s":"fantasy", "_version_":
1653437692245966849}, { "id":"0380014300", "cat":["book"], "name":["Nine
Princes In Amber"], "price":[6.99], "inStock":[true], "author":["Roger
Zelazny"], "series_t":"the Chronicles of Amber", "sequence_i":1, "genre_s":
"fantasy", "_version_":1653437692247015424}, { "id":"0805080481", "cat":[
"book"], "name":["The Book of Three"], "price":[5.99], "inStock":[true], "
author":["Lloyd Alexander"], "series_t":"The Chronicles of Prydain", "
sequence_i":1, "genre_s":"fantasy", "_version_":1653437692248064000}, { "id
":"080508049X", "cat":["book"], "name":["The Black Cauldron"], "price":[5.99
], "inStock":[true], "author":["Lloyd Alexander"], "series_t":"The
Chronicles of Prydain", "sequence_i":2, "genre_s":"fantasy", "_version_":
1653437692248064001}] }, "moreLikeThis":{ "0553573403":{"numFound":0,"start
":0,"docs":[] }, "0553579908":{"numFound":0,"start":0,"docs":[] }, "
055357342X":{"numFound":0,"start":0,"docs":[] }, "0553293354":{"numFound":0
,"start":0,"docs":[] }, "0812521390":{"numFound":0,"start":0,"docs":[] }, "
0812550706":{"numFound":0,"start":0,"docs":[] }, "0441385532":{"numFound":0
,"start":0,"docs":[] }, "0380014300":{"numFound":0,"start":0,"docs":[] }, "
0805080481":{"numFound":0,"start":0,"docs":[] }, "080508049X":{"numFound":0
,"start":0,"docs":[] }}}



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Re: MoreLikeThis does not work

Jörn Franke
It looks like you are trying to do a more like this of all documents in the collection. I am not sure if this makes sense. Maybe you should put a query that results in less results, eg one that returns a specific document.

> Am 22.12.2019 um 13:40 schrieb Nehemia Litterat <[hidden email]>:
>
> Hi,
> Any help will be appreciated
>
> Using solr 8.2
>
> I created a core using
>
> ./solr create -c
>
>
> imported example docs using
>
> * curl 'http://localhost:32576/solr/playground/update?commit=true
> <http://localhost:32576/solr/playground/update?commit=true>' --data-binary
> @/home/vagrant/books.csv -H 'Content-type:application/csv'*
>
> the data is the sample data coming with solr
>
> I did not change anything else in the configuration
>
> trying to add *mlt=true&mlt.fl=name* to my query did not yield any result
>
> *http://localhost:8983/solr/playground/select?mlt.fl=name&mlt=true&q=*%3A*
> <http://localhost:8983/solr/playground/select?mlt.fl=name&mlt=true&q=*%3A*>*
>
>
> I always get
>
> "moreLikeThis":{ "0553573403":{"numFound":0,"start":0,"docs":[] }}
>
> in the end of my results
>
> this is the full result
>
> {
> "responseHeader":{ "status":0, "QTime":3, "params":{ "q":"*:*", "mlt":"true",
> "mlt.fl":"name", "_":"1577018250160"}}, "response":{"numFound":10,"start":0
> ,"docs":[ { "id":"0553573403", "cat":["book"], "name":["A Game of Thrones"],
> "price":[7.99], "inStock":[true], "author":["George R.R. Martin"], "series_t
> ":"A Song of Ice and Fire", "sequence_i":1, "genre_s":"fantasy", "_version_
> ":1653437692236529664}, { "id":"0553579908", "cat":["book"], "name":["A
> Clash of Kings"], "price":[7.99], "inStock":[true], "author":["George R.R.
> Martin"], "series_t":"A Song of Ice and Fire", "sequence_i":2, "genre_s":
> "fantasy", "_version_":1653437692242821120}, { "id":"055357342X", "cat":[
> "book"], "name":["A Storm of Swords"], "price":[7.99], "inStock":[true], "
> author":["George R.R. Martin"], "series_t":"A Song of Ice and Fire", "
> sequence_i":3, "genre_s":"fantasy", "_version_":1653437692243869696}, { "id
> ":"0553293354", "cat":["book"], "name":["Foundation"], "price":[7.99], "
> inStock":[true], "author":["Isaac Asimov"], "series_t":"Foundation Novels",
> "sequence_i":1, "genre_s":"scifi", "_version_":1653437692244918272}, { "id":
> "0812521390", "cat":["book"], "name":["The Black Company"], "price":[6.99],
> "inStock":[false], "author":["Glen Cook"], "series_t":"The Chronicles of
> The Black Company", "sequence_i":1, "genre_s":"fantasy", "_version_":
> 1653437692244918273}, { "id":"0812550706", "cat":["book"], "name":["Ender's
> Game"], "price":[6.99], "inStock":[true], "author":["Orson Scott Card"], "
> series_t":"Ender", "sequence_i":1, "genre_s":"scifi", "_version_":
> 1653437692245966848}, { "id":"0441385532", "cat":["book"], "name":["Jhereg"],
> "price":[7.95], "inStock":[false], "author":["Steven Brust"], "series_t":"Vlad
> Taltos", "sequence_i":1, "genre_s":"fantasy", "_version_":
> 1653437692245966849}, { "id":"0380014300", "cat":["book"], "name":["Nine
> Princes In Amber"], "price":[6.99], "inStock":[true], "author":["Roger
> Zelazny"], "series_t":"the Chronicles of Amber", "sequence_i":1, "genre_s":
> "fantasy", "_version_":1653437692247015424}, { "id":"0805080481", "cat":[
> "book"], "name":["The Book of Three"], "price":[5.99], "inStock":[true], "
> author":["Lloyd Alexander"], "series_t":"The Chronicles of Prydain", "
> sequence_i":1, "genre_s":"fantasy", "_version_":1653437692248064000}, { "id
> ":"080508049X", "cat":["book"], "name":["The Black Cauldron"], "price":[5.99
> ], "inStock":[true], "author":["Lloyd Alexander"], "series_t":"The
> Chronicles of Prydain", "sequence_i":2, "genre_s":"fantasy", "_version_":
> 1653437692248064001}] }, "moreLikeThis":{ "0553573403":{"numFound":0,"start
> ":0,"docs":[] }, "0553579908":{"numFound":0,"start":0,"docs":[] }, "
> 055357342X":{"numFound":0,"start":0,"docs":[] }, "0553293354":{"numFound":0
> ,"start":0,"docs":[] }, "0812521390":{"numFound":0,"start":0,"docs":[] }, "
> 0812550706":{"numFound":0,"start":0,"docs":[] }, "0441385532":{"numFound":0
> ,"start":0,"docs":[] }, "0380014300":{"numFound":0,"start":0,"docs":[] }, "
> 0805080481":{"numFound":0,"start":0,"docs":[] }, "080508049X":{"numFound":0
> ,"start":0,"docs":[] }}}
>
>
>
> [image: photo]
> *Nehemia Litterat*
> Our story
>
> +972-54-6609351 | [hidden email]
>
> Skype: nlitterat <#SignatureSanitizer_SafeHtmlFilter_>
> <http://www.linkedin.com/in/nlitterat/>
> Please consider your environmental responsibility. Before printing this
> e-mail message, ask yourself whether you really need a hard copy.
> Create your own email signature
> <https://www.wisestamp.com/signature-in-email/?utm_source=promotion&utm_medium=signature&utm_campaign=create_your_own>