bump! On Wed, Apr 6, 2016 at 3:25 PM, sudsport s <sudssf2...@gmail.com> wrote:
> Adding Yonik, > > I almost implemented custom aggregate function using new facet API but > later on got runtime exceptions as "FacetContext" is not public. so looks > like Facet api components can't be created as external plugins. > > I am successful using AnalyticsQueryAPI to perform what I want. > > Yonik can you help me figure about differences between Solr analytics API > vs JSON Facet API? > > > > > On Fri, Mar 18, 2016 at 8:52 AM, sudsport s <sudssf2...@gmail.com> wrote: > >> Thanks Joel for responding. >> but I am still not sure when to use Solr analytics API i vs JSON facet API >> (What is difference between ValueSource vs PostFilter) >> >> I know that ValueSource is useful to implement functions. >> >> On Wed, Mar 16, 2016 at 9:49 AM, sudsport s <sudssf2...@gmail.com> wrote: >> >>> Hi , >>> >>> I am planning to write custom aggregator in solr which will use some >>> probabilistic data structures per shard to accumate results and then after >>> shard merging results will be sent to user as integer. >>> >>> I explored 2 options to do this >>> >>> 1. Solr analytics API >>> https://cwiki.apache.org/confluence/display/solr/AnalyticsQuery+API >>> >>> I can implement merge policy and post filter to perform aggregation , I >>> have example working using this , but I am not sure if it is ok to pass >>> objects which > 1 MB in shard response? >>> does solr use javabin serialization to optimize data gathering from >>> shards? >>> then leader shard will collect these 1 MB probabilistic data structures >>> & produce count which will be included in response. >>> >>> >>> 2. JSON Facet API http://yonik.com/json-facet-api/ >>> >>> After looking at >>> https://github.com/apache/lucene-solr/tree/master/solr/core/src/java/org/apache/solr/search/facet >>> >>> FacetProcessor.java seems very similar to Solr analytics API. >>> seems like merging happens similar way where response will include >>> objects like hll and merge them >>> >>> >>> >>> >>> >>> one key difference is Solr analytics API is based on postFilter and >>> JSON facet API is based on ValueSource but I dont understand impact of >>> using one or the other. >>> >>> >>> Can someone help me out? >>> >>> >>> >> >
