Hi Christine,
Thanks for the reply!
I suppose something in our config doens't comply with the LTR plugin. If
I browse to http://[HOST]:[PORT]/solr/[COLLECTION]/schema/feature-store,
where I upload the features to, the browser can't find the page:
*Not Found*
No REST managed resource registered for path /schema/feature-store
...
So it seems that there /is /no feature endpoint? I suspect that maybe
our config doesn't apply necessary solr-plugins for LTR or something
similar, despite the -Dsolr.ltr.enabled=true parameter.
Any advice would be appreciated!
Thanks,
Vincent
On 06-03-17 21:18, Christine Poerschke (BLOOMBERG/ LONDON) wrote:
Hi Vincent,
Would you be comfortable sharing (redacted) details of the exact upload command
you used and (redacted) extracts of the features json file that gave the upload
error?
Two things I have encountered commonly myself:
* uploading features to the model endpoint or model to the feature endpoint
* forgotten double-quotes around the numbers in MultipleAdditiveTreesModel json
Regards,
Christine
----- Original Message -----
From: solr-user@lucene.apache.org
To: solr-user@lucene.apache.org
At: 03/06/17 13:22:40
Hi all,
I've been trying to get learning to rank working on our own search
index. Following the LTR-readme
(https://github.com/bloomberg/lucene-solr/blob/master-ltr/solr/contrib/ltr/example/README.md)
I ran the example python script to train and upload the model, but I
already get an error during the uploading of the features:
Bad Request (400) - Expected Map to create a new ManagedResource but
received a java.util.ArrayList
at
org.apache.solr.rest.RestManager$RestManagerManagedResource.doPut(RestManager.java:523)
at
org.apache.solr.rest.ManagedResource.doPost(ManagedResource.java:355)
at
org.apache.solr.rest.RestManager$ManagedEndpoint.post(RestManager.java:351)
at
org.restlet.resource.ServerResource.doHandle(ServerResource.java:454)
...
This makes sense: the json feature file is an array, and the RestManager
needs a Map in doPut.
Using the curl command from the cwiki
(https://cwiki.apache.org/confluence/display/solr/Learning+To+Rank)
yields the same error, but instead of it having "received a
java.util.ArrayList" it "received a java.lang.String".
I wonder how this actually is supposed to work, and what's going wrong
in this case. I have tried the LTR with the default techproducts
example, and that worked just fine. Does anyone have an idea of what's
going wrong here?
Thanks in advance!
Vincent
