well ..
what if
http://localhost:8983/solr/images/select?fl=content&q=id:1&start=1&wt=csv&;
csv.separator=&csv.encapsulator&csv.null=null
?
On Wed, Apr 18, 2018 at 1:18 PM, Lee Carroll <lee.a.carr...@googlemail.com>
wrote:
> sorry cut n paste error i'd get
>
> {
> "responseHeader":{
> "zkConnected":true,
> "status":0,
> "QTime":0,
> "params":{
> "q":"*:*",
> "fl":"content",
> "rows":"1"}},
> "response":{"numFound":1,"start":0,"docs":[
> {
> "content":"my-content-value"}]
> }}
>
>
> but you get my point
>
>
>
> On 18 April 2018 at 11:13, Lee Carroll <lee.a.carr...@googlemail.com>
> wrote:
>
> > for http://localhost:8983/solr/images/select?fl=content&q=id:1&start=1
> >
> > I'd get
> >
> > {
> > "responseHeader":{
> > "zkConnected":true,
> > "status":0,
> > "QTime":1,
> > "params":{
> > "q":"*:*",
> > "_":"1524046333220"}},
> > "response":{"numFound":1,"start":0,"docs":[
> > {
> > "id":"1",
> > "content":"my-content-value",
> > "*content-type*":"text/plain"}]
> > }}
> >
> > when i want
> >
> > my-content-value
> >
> >
> >
> > On 18 April 2018 at 10:55, Mikhail Khludnev <m...@apache.org> wrote:
> >
> >> Lee, from this description I don see why it can't be addressed by
> fl,rows
> >> params. What makes it different form the typical Solr usage?
> >>
> >>
> >> On Wed, Apr 18, 2018 at 12:31 PM, Lee Carroll <
> >> lee.a.carr...@googlemail.com>
> >> wrote:
> >>
> >> > Sure, we want to return a single field's value for the top matching
> >> > document for a given query. Bare content rather than a full search
> >> result
> >> > listing.
> >> >
> >> > To be concrete:
> >> >
> >> > For a schema of fields id [unique key], content[stored],content-type[
> >> > stored]
> >> > For a request:
> >> >
> >> > 1. Request URL:
> >> > https://localhost/solr/content?q=id:1
> >> > 2. Request Method:
> >> > GET
> >> >
> >> > We get a response
> >> > HTTP/1.1 200 OK Content-Length: 16261 Content-Type: [content-type
> value]
> >> >
> >> > and the body to be the raw value of content
> >> >
> >> > In short clients consume directly the most relevant "content" returned
> >> from
> >> > solr queries they construct.
> >> >
> >> > Naively I've implemented a subclass of RawResponseWriter which takes
> the
> >> > first docs values and adds them to the appended "content" stream.
> >> Should I
> >> > selectively add the content stream depending on if this is the final
> >> > aggregation of cloud results (and provide a base class writer to act
> if
> >> > not), if so how do I know its the final aggregation. Or is adding the
> >> > content stream within the response writer a bad idea. Should that be
> >> being
> >> > added to the response somewhere else?
> >> >
> >> > Failing all of the above is asking about response writer an X / Y
> >> problem.
> >> > Is their a better way to achieve the above. I'd looked at transforming
> >> > response xml but that seemed not to offer a complete bare slate.
> >> >
> >> > Cheers Lee C
> >> >
> >> >
> >> > On 17 April 2018 at 21:36, Mikhail Khludnev <m...@apache.org> wrote:
> >> >
> >> > > In distributed search response writer is used twice
> >> > > https://lucene.apache.org/solr/guide/7_1/distributed-requests.html
> >> > > once slave node that's where response writer yields "json" content
> >> and it
> >> > > upset aggregator node which is expect only javabin.
> >> > > I hardly can comment on rrw, it's probably used for responding
> >> separate
> >> > > files in distrib=false mode.
> >> > > You can start from describing why you need to create own response
> >> writer.
> >> > >
> >> > > On Tue, Apr 17, 2018 at 7:02 PM, Lee Carroll <
> >> > lee.a.carr...@googlemail.com
> >> > > >
> >> > > wrote:
> >> > >
> >> > > > Ok. My expectation was the response writer would not be used until
> >> the
> >> > > > final serialization of the result. If my response writer breaks
> the
> >> > > > response writer contract, exactly the way rawResponseWriter does
> and
> >> > just
> >> > > > out puts a filed value how does that work? Does rawResponseWriter
> >> > support
> >> > > > cloud mode?
> >> > > >
> >> > > >
> >> > > >
> >> > > > On 17 April 2018 at 15:55, Mikhail Khludnev <m...@apache.org>
> >> wrote:
> >> > > >
> >> > > > > That's what should happen.
> >> > > > >
> >> > > > > Expected mime type application/octet-stream but got
> >> application/json.
> >> > > > >
> >> > > > > Distributed search coordinator expect to merge slave responses
> in
> >> > > javabin
> >> > > > > format. But slave's wt indicated json.
> >> > > > > As far as I know only javabin might be used to distributed
> search
> >> > > > > underneath. Coordinator itself might yield json.
> >> > > > >
> >> > > > > On Tue, Apr 17, 2018 at 4:23 PM, Lee Carroll <
> >> > > > lee.a.carr...@googlemail.com
> >> > > > > >
> >> > > > > wrote:
> >> > > > >
> >> > > > > > Sure
> >> > > > > >
> >> > > > > > with 1 shard 1 replica this request works fine
> >> > > > > >
> >> > > > > > 1. Request URL:
> >> > > > > > http://localhost:8983/solr/images/image?q=id:1
> >> > > > > > 2. Request Method:
> >> > > > > > GET
> >> > > > > > 3. Status Code:
> >> > > > > > 200 OK
> >> > > > > >
> >> > > > > > logs are clean
> >> > > > > >
> >> > > > > > with 2 shards 2 replicas the same request fails and in the
> logs
> >> > > > > >
> >> > > > > >
> >> > > > > > INFO - 2018-04-17 13:20:32.052; [c:images s:shard2
> r:core_node7
> >> > > > > > x:images_shard2_replica_n4] org.apache.solr.core.SolrCore;
> >> > > > > > [images_shard2_replica_n4] webapp=/solr path=/image
> >> > > > > > params={df=text&distrib=false&qt=/image&fl=id&fl=score&
> >> > > > > > shards.purpose=4&start=0&fsv=true&shard.url=
> >> > > > > > http://10.224.30.207:8983/solr/images_shard2_replica_n4/
> >> > > > > > |http://10.224.30.207:7574/solr/images_shard2_replica_n6/
> >> > > > > > &rows=10&version=2&q=id:1&NOW=1523971232039&isShard=true&wt=
> >> > javabin}
> >> > > > > > hits=0 status=0 QTime=0
> >> > > > > > ERROR - 2018-04-17 13:20:32.055; [c:images s:shard1
> r:core_node3
> >> > > > > > x:images_shard1_replica_n1] org.apache.solr.common.SolrExc
> >> eption;
> >> > > > > > org.apache.solr.client.solrj.impl.HttpSolrClient$
> >> > > RemoteSolrException:
> >> > > > > > Error
> >> > > > > > from server at http://10.224.30.207:8983/
> >> > > solr/images_shard2_replica_n4
> >> > > > :
> >> > > > > > Expected mime type application/octet-stream but got
> >> > application/json.
> >> > > > > > at
> >> > > > > > org.apache.solr.client.solrj.impl.HttpSolrClient.
> >> > > > > > executeMethod(HttpSolrClient.java:607)
> >> > > > > > at
> >> > > > > > org.apache.solr.client.solrj.impl.HttpSolrClient.request(
> >> > > > > > HttpSolrClient.java:255)
> >> > > > > > at
> >> > > > > > org.apache.solr.client.solrj.impl.HttpSolrClient.request(
> >> > > > > > HttpSolrClient.java:244)
> >> > > > > > at
> >> > > > > > org.apache.solr.client.solrj.impl.LBHttpSolrClient.
> >> > > > > > doRequest(LBHttpSolrClient.java:483)
> >> > > > > > at
> >> > > > > > org.apache.solr.client.solrj.impl.LBHttpSolrClient.request(
> >> > > > > > LBHttpSolrClient.java:413)
> >> > > > > > at
> >> > > > > > org.apache.solr.handler.component.HttpShardHandlerFactory.
> >> > > > > > makeLoadBalancedRequest(HttpShardHandlerFactory.java:273)
> >> > > > > > at
> >> > > > > > org.apache.solr.handler.component.HttpShardHandler.
> >> > lambda$submit$0(
> >> > > > > > HttpShardHandler.java:175)
> >> > > > > > at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> >> > > > > > at java.util.concurrent.Executors$RunnableAdapter.
> >> > > > > call(Executors.java:511)
> >> > > > > > at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> >> > > > > > at
> >> > > > > > com.codahale.metrics.InstrumentedExecutorService$
> >> > > > > InstrumentedRunnable.run(
> >> > > > > > InstrumentedExecutorService.java:176)
> >> > > > > > at
> >> > > > > > org.apache.solr.common.util.ExecutorUtil$
> >> > MDCAwareThreadPoolExecutor.
> >> > > > > > lambda$execute$0(ExecutorUtil.java:188)
> >> > > > > > at
> >> > > > > > java.util.concurrent.ThreadPoolExecutor.runWorker(
> >> > > > > > ThreadPoolExecutor.java:1142)
> >> > > > > > at
> >> > > > > > java.util.concurrent.ThreadPoolExecutor$Worker.run(
> >> > > > > > ThreadPoolExecutor.java:617)
> >> > > > > > at java.lang.Thread.run(Thread.java:745)
> >> > > > > >
> >> > > > > > INFO - 2018-04-17 13:20:32.056; [c:images s:shard1
> r:core_node3
> >> > > > > > x:images_shard1_replica_n1] org.apache.solr.core.SolrCore;
> >> > > > > > [images_shard1_replica_n1] webapp=/solr path=/image
> >> > params={q=id:1}
> >> > > > > > status=200 QTime=17
> >> > > > > > INFO - 2018-04-17 13:20:32.055; [c:images s:shard1
> r:core_node3
> >> > > > > > x:images_shard1_replica_n1] org.apache.solr.core.SolrCore;
> >> > > > > > [images_shard1_replica_n1] webapp=/solr path=/image
> >> > > > > > params={df=text&distrib=false&qt=/image&fl=id&fl=score&
> >> > > > > > shards.purpose=4&start=0&fsv=true&shard.url=
> >> > > > > > http://10.224.30.207:8983/solr/images_shard1_replica_n1/
> >> > > > > > |http://10.224.30.207:7574/solr/images_shard1_replica_n2/
> >> > > > > > &rows=10&version=2&q=id:1&NOW=1523971232039&isShard=true&wt=
> >> > javabin}
> >> > > > > > hits=1 status=0 QTime=2
> >> > > > > >
> >> > > > > >
> >> > > > > > I've implemented getcontenttype simply as
> >> > > > > >
> >> > > > > > @Override
> >> > > > > > public String getContentType(SolrQueryRequest request,
> >> > > > > > SolrQueryResponse response) {
> >> > > > > >
> >> > > > > > return "application/json;charset=utf-8";
> >> > > > > > }
> >> > > > > >
> >> > > > > >
> >> > > > > >
> >> > > > > >
> >> > > > > >
> >> > > > > > On 16 April 2018 at 17:37, Mikhail Khludnev <m...@apache.org>
> >> > wrote:
> >> > > > > >
> >> > > > > > > Lee,
> >> > > > > > > It's worth to send a stacktrace for such kind of inquiries.
> >> > > > > > > I guess it goes from QueryComponent.mergeIds() or so. Shard
> >> > > response
> >> > > > > > should
> >> > > > > > > contains <uniqueKey> from schema.xml field.
> >> > > > > > > I encounter something like this while troubleshooting
> >> > > > > > > https://lucene.apache.org/solr/guide/6_6/transforming-
> >> > > > > > > result-documents.html#TransformingResultDocuments-
> >> > > > > > > CoresandCollectionsinSolrCloud
> >> > > > > > >
> >> > > > > > >
> >> > > > > > > On Mon, Apr 16, 2018 at 6:56 PM, Lee Carroll <
> >> > > > > > lee.a.carr...@googlemail.com
> >> > > > > > > >
> >> > > > > > > wrote:
> >> > > > > > >
> >> > > > > > > > I've created a custom response writer which extends
> >> > > > > RawResponseWriter.
> >> > > > > > > The
> >> > > > > > > > basic operation is to output a single field value from the
> >> top
> >> > > > > matching
> >> > > > > > > doc
> >> > > > > > > > as the entire response. This works when shards = 1 but
> fails
> >> > when
> >> > > > > > shards
> >> > > > > > > > are greater than 1.
> >> > > > > > > >
> >> > > > > > > > I throw an error if the field in question is missing from
> >> the
> >> > top
> >> > > > > doc.
> >> > > > > > > This
> >> > > > > > > > happens when individual shards are being searched and only
> >> id
> >> > and
> >> > > > > score
> >> > > > > > > are
> >> > > > > > > > returned. I'm sure I've committed a basic error.
> >> > > > > > > >
> >> > > > > > > > Lee C
> >> > > > > > > >
> >> > > > > > >
> >> > > > > > >
> >> > > > > > >
> >> > > > > > > --
> >> > > > > > > Sincerely yours
> >> > > > > > > Mikhail Khludnev
> >> > > > > > >
> >> > > > > >
> >> > > > >
> >> > > > >
> >> > > > >
> >> > > > > --
> >> > > > > Sincerely yours
> >> > > > > Mikhail Khludnev
> >> > > > >
> >> > > >
> >> > >
> >> > >
> >> > >
> >> > > --
> >> > > Sincerely yours
> >> > > Mikhail Khludnev
> >> > >
> >> >
> >>
> >>
> >>
> >> --
> >> Sincerely yours
> >> Mikhail Khludnev
> >>
> >
> >
>
--
Sincerely yours
Mikhail Khludnev
