Solr Connector was implemented using https://github.com/lucidworks/spark-solr. The Solr Connector just works on Solr Cloud. For all the options available for the connector check on this link.
To add Solr Almaren dependency to your sbt build:
libraryDependencies += "com.github.music-of-the-ainur" %% "solr-almaren" % "0.3.5-3.4"
To run in spark-shell:
spark-shell --master "local[*]" --packages "com.github.music-of-the-ainur:almaren-framework_2.12:0.9.10-3.4,com.github.music-of-the-ainur:solr-almaren_2.12:0.3.5-3.4"
Solr Connector is available in Maven Central repository.
| version | Connector Artifact |
|---|---|
| Spark 3.4.x and scala 2.12 | com.github.music-of-the-ainur:solr-almaren_2.12:0.3.5-3.4 |
| Spark 3.3.x and scala 2.12 | com.github.music-of-the-ainur:solr-almaren_2.12:0.3.5-3.3 |
| Spark 3.2.x and scala 2.12 | com.github.music-of-the-ainur:solr-almaren_2.12:0.3.5-3.2 |
| Spark 3.1.x and scala 2.12 | com.github.music-of-the-ainur:solr-almaren_2.12:0.3.5-3.1 |
| Spark 2.4.x and scala 2.11 | com.github.music-of-the-ainur:solr-almaren_2.11:0.3.5-2.4 |
| Parameters | Description |
|---|---|
| collection | collection name |
| ZookeeperHost(zkhost) | localhost:9983 |
| options | Description(Value) |
| ----------------------- | ------------------------------------------------------------------------------ |
| query | limits the rows you want to load into Spark("body_t:solr") |
| fields | specify a subset of fields("id,author_s,favorited_b") |
| filters | to apply filters on the values in documents("firstName:Sam,lastName:Powell") |
| rows | specify the number of rows to be displayed on the page(100) |
| max_rows | Limits the result set to a maximum number of rows(5000) |
| request_handler | Set the Solr request handler for queries("/export","/select") |
import com.github.music.of.the.ainur.almaren.Almaren
import com.github.music.of.the.ainur.almaren.solr.Solr.SolrImplicit
val almaren = Almaren("App Name")
almaren.builder.sourceSolr("collection","zkHost1:2181,zkHost2:2181",Map("field_names" -> "first_name,last_name","rows" -> 100))
almaren.builder.targetSolr("collection","zkHost1:2181,zkHost2:2181",options)
| Parameters | Description |
|---|---|
| collection | collection name |
| ZookeeperHost(zkhost) | localhost:9983 |
| Savemode | SaveMode.ErrorIfExists |
| options | Description(Value) |
| ----------------------- | ---------------------------------------------------------------- |
| soft_commit_secs | set soft_commit_sec(10 seconds) |
| commit_within | force commit to happen after specified time(5000 milliSeconds) |
| batch_size | number of documents sent in a HTTP call (1000) |
| gen_uniq_key | generating unique key for each document(true) |
| solr_field_types | specify field types for solr("rating:string,title:text_en") |
import com.github.music.of.the.ainur.almaren.solr.Solr.SolrImplicit
import com.github.music.of.the.ainur.almaren.builder.Core.Implicit
import com.github.music.of.the.ainur.almaren.Almaren
import org.apache.spark.sql.SaveMode
val almaren = Almaren("App Name")
almaren.builder
.sourceSql("""SELECT sha2(concat_ws("",array(*)),256) as id,*,current_timestamp from deputies""")
.coalesce(30)
.targetSolr("deputies","cloudera:2181,cloudera1:2181,cloudera2:2181/solr",Map("batch_size" -> "100000","commit_within" -> "10000"),SaveMode.Overwrite)
.batch
