I am trying to use ravendb (build 960) multi get to get the results of several queries.
I am posting to /multi_get with:
[
{"Url":"/databases/myDb/indexes/composers?query=title:beethoven&fetch=title&fetch=biography"},
{"Url":"/databases/myDb/indexes/products?query=title:beethoven&fetch=title&fetch=price"}
]
The server responds with results for each query, however it responds with EVERY document for each index. It looks like neither the query is used, or the fetch parameters.
Is there something I am doing wrong here?
Multi GET assumes all the urls are local to the current database, you can specify urls starting with /datbases/foo
You specify that in the multi get url.
Change you code to generate:
[
{"Url":"/indexes/composers?query=title:beethoven&fetch=title&fetch=biography"},
{"Url":"/indexes/products?query=title:beethoven&fetch=title&fetch=price"}
]
And make sure that you multi get goes to
/databases/mydb/multi_get
Related
I used the following request
http://localhost:8983/solr/test6/select?q=*:*&sort=product(score,hits)%20desc
to sort results based on their relevancy score as determined by Apache Solr multiplied by a field called hits (integers).
However, I receive the following error message:
{ "responseHeader":{
"status":400,
"QTime":0,
"params":{
"q":"*:*",
"sort":"product(score,hits) desc"}}, "error":{
"metadata":[
"error-class","org.apache.solr.common.SolrException",
"root-error-class","org.apache.solr.common.SolrException"],
"msg":"sort param could not be parsed as a query, and is not a field that exists in the index: product(score,hits)",
"code":400}}
Why is it that sort cannot correctly input the function value when:
http://localhost:8983/solr/test6/select?q=*:*&sort=score%20desc
http://localhost:8983/solr/test6/select?q=*:*&sort=hits%20desc
work when a function isn't applied?
NOTE: http://localhost:8983/solr/test6/select?q=*:*&sort=product(hits,2)%20desc where I added the product() function also returns the same error message.
The score value isn't really a field - so you can't use a function to manipulate it in the sort clause.
Instead you can use a multiplicative boost through boost (if you're using edismax) to achieve what you want: &boost=hits. You might want to use log(hits) or something similar (recip for example) instead to avoid large differences in score for just small changes in the number of hits.
I know that by default fuseki provides different urls for both query and update, allowing some elegant management.
Now, i want to get a single URL for both update and query. The rationale behind this need is to avoid the propagation of two urls in the codebase.
I know that update and query codes should be separated, but my requests are not mixed. It's just to avoid the propagation of two objects instead of one.
My current config looks like:
<#service1> rdf:type fuseki:Service ;
fuseki:name "dataset" ; # http://host:port/dataset
fuseki:serviceQuery "endpoint" ; # SPARQL query service
fuseki:serviceUpdate "endpoint" ; # SPARQL update service
fuseki:dataset <#dataset> ;
.
In theory, an interface exists at /endpoint, but only accept update. When query with:
prefix sfm: <sfm/>
SELECT DISTINCT ?value
WHERE {
sfm:config sfm:component ?value.
}
the server reports many lines like the following:
INFO [4] POST http://localhost:9876/sfm/endpoint
INFO [4] POST /sfm :: 'endpoint' :: [application/x-www-form-urlencoded] ?
INFO [4] 400 SPARQL Update: No 'update=' parameter (0 ms)
I can't find anything in the doc that specify that query and update service can't be at same place, so i'm assume it's possible and i've just missed something.
However the last line of log is explicit: fuseki waits for an update.
One other solution could be to define the url as localhost/dataset/, and depending if i query or update, add the relevant part at the end, giving respectively localhost/dataset/query and localhost/dataset/update.
But (1) this lead the database to need to have a particular url naming, and (2) it looks like a strong requirement about the triplestore: when i will use another one, it will have to provide the same interface, which could be not possible. (don't know if this feature is implemented in other triplestores)
EDIT: fix the POST/GET error
405 HTTP method not allowed: SPARQL Update : use POST
It looks like you are using GET for an SPARQL Update.
It has correctly routed the operation to the update processor (you can use the same endpoint - including dropping the service part and just using the dataset URL).
However, in HTTP, GET are cacheable operations and should not be used when they can cause changes. a GET may not actually reach the end server but some intermediate respond to it from a web cache.
Use POST.
The same is true if you separate services for query and update.
Original Context
The original question has been edited. The original report was asking about this:
INFO [1] 405 HTTP method not allowed: SPARQL Update : use POST (2 ms)
Answer to the revised and different question:
The endpoint for shared services is the dataset URL:
http://localhost:9876/sfm
Whether update, query or services are available is controlled by the configuration file.
Setting fuseki:serviceQuery and fuseki:serviceUpdate the same is not necessary and is discouraged.
I am having problems getting the elastic search indexes to work correctly with Titan Server. I currently have a local Titan/Cassandra setup using Titan Server 0.4.0 with elastic search enabled. I have a test graph 'bg' with the following properties:
Vertices have two properties, "type" and "value".
Edges have a number of other properties with names like "timestamp", "length" and so on.
I am running titan.sh with the rexster-cassandra-es.xml config, and my configuration looks like this:
storage.backend = "cassandra"
storage.hostname = "127.0.0.1"
storage.index.search.backend = "elasticsearch"
storage.index.search.directory = "db/es"
storage.index.search.client-only= "false"
storage.index.search.local-mode = "true"
This configuration is the same in the bg config in Rexter and the groovy script that loads the data.
When I load up Rexster client and type in g = rexster.getGraph("bg"), I can perform an exact search using g.V.has("type","ip_address") and get the correct vertices back. However when I run the query:
g.V.has("type",CONTAINS,"ip_")
I get the error:
Data type of key is not compatible with condition
I think this is something to do with the type "value" not being indexed. What I would like to do is make all vertex and edge attributes indexable so that I can use any of the string matching functions on them as necessary. I have already tried making an indexed key using the command
g.makeKey("type").dataType(String.class).indexed(Vertex.class).indexed("search",Vertex.class).make()
but to be honest I have no idea how this works. Can anyone help point me in the right direction with this? I am completely unfamiliar with elastic search and Titan type definitions.
Thanks,
Adam
the Wiki page Indexing Backend Overview should answer every little detail of your questions.
Cheers,
Daniel
I'm trying to boost results from a particular Alfresco site compared to others.
I've written the following query but it's not working properly :
(((TAG:term or cm:name:term OR cm:title:term )^8 OR (cm:description:term )^6) AND PATH:'/app:company_home/st:sites/cm:Pub/cm:documentLibrary//*')^8
OR
(((TAG:term or cm:name:term OR cm:title:term )^4 OR (cm:description:term )^2) AND -PATH:'/app:company_home/st:sites/cm:Pub/cm:documentLibrary//*')
The result is overall correct but the results from Pub aren't the first ones in the list.
Is there a way to achieve that ?
^8 on the first part query part was just not enough. Putting a huge value like 100 makes it work perfectly !
I'm currently trying to create an Endeca query using the Java API for a URLENEQuery. The current query is:
collection()/record[CONTACT_ID = "xxxxx" and SALES_OFFICE = "yyyy"]
I need it to be:
collection()/record[(CONTACT_ID = "xxxxx" or CONTACT_ID = "zzzzz") and
SALES_OFFICE = "yyyy"]
Currently this is being done with an ERecSearchList with CONTACT_ID and the string I'm trying to match in an ERecSearch object, but I'm having difficulty figuring out how to get the UrlENEQuery to generate the or in the correct fashion as I have above. Does anyone know how I can do this?
One of us is confused on multiple levels:
Let me try to explain why I am confused:
If Contact_ID and Sales_Office are different dimensions, where Contact_ID is a multi-or dimension, then you don't need to use EQL (the xpath like language) to do anything. Just select the appropriate dimension values and your navigation state will reflect the query you are trying to build with XPATH. IE CONTACT_IDs "ORed together" with SALES_OFFICE "ANDed".
If you do have to use EQL, then the only way to modify it (provided that you have to modify it from the returned results) is via string manipulation.
ERecSearchList gives you ability to use "Search Within" functionality which functions completely different from the EQL filtering, though you can achieve similar results by using tricks like searching only specified field (which would be separate from the generic search interface") I am still not sure what's the connection between ERecSearchList and the EQL expression above?
Having expressed my confusion, I think what you need to do is to use String manipulation to dynamically build the EQL expression and add it to the Query.
A code example of what you are doing would be extremely helpful as well.