I suspect the spark job is somehow having an incorrect (newer) version of
json4s in the classpath. json4s 3.5.3 is the utmost version that can be
used.
Thanks,
Muthu
On Mon, Feb 17, 2020, 06:43 Mich Talebzadeh <mich.talebza...@gmail.com>
wrote:
> Hi,
>
> Spark version 2.4.3
> Hbase 1.2.7
>
> Data is stored in Hbase as Json. example of a row shown below
> [image: image.png]
> I am trying to read this table in Spark Scala
>
> import org.apache.spark.sql.{SQLContext, _}
> import org.apache.spark.sql.execution.datasources.hbase._
> import org.apache.spark.{SparkConf, SparkContext}
> import spark.sqlContext.implicits._
> import org.json4s._
> import org.json4s.jackson.JsonMethods._
> import org.json4s.jackson.Serialization.{read => JsonRead}
> import org.json4s.jackson.Serialization.{read, write}
> def catalog = s"""{
> | "table":{"namespace":"trading", "name":"MARKETDATAHBASEBATCH",
> | "rowkey":"key",
> | "columns":{
> | "rowkey":{"cf":"rowkey", "col":"key", "type":"string"},
> | |"ticker":{"cf":"PRICE_INFO", "col":"ticker", "type":"string"},
> | |"timeissued":{"cf":"PRICE_INFO", "col":"timeissued",
> "type":"string"},
> | |"price":{"cf":"PRICE_INFO", "col":"price", "type":"string"}
> | |}
> | |}""".stripMargin
> def withCatalog(cat: String): DataFrame = {
> spark.sqlContext
> .read
> .options(Map(HBaseTableCatalog.tableCatalog->cat))
> .format("org.apache.spark.sql.execution.datasources.hbase")
> .load()
> }
> val df = withCatalog(catalog)
>
>
> However, I am getting this error
>
> Spark session available as 'spark'.
> java.lang.NoSuchMethodError:
> org.json4s.jackson.JsonMethods$.parse(Lorg/json4s/JsonInput;Z)Lorg/json4s/JsonAST$JValue;
> at
> org.apache.spark.sql.execution.datasources.hbase.HBaseTableCatalog$.apply(HBaseTableCatalog.scala:257)
> at
> org.apache.spark.sql.execution.datasources.hbase.HBaseRelation.<init>(HBaseRelation.scala:80)
> at
> org.apache.spark.sql.execution.datasources.hbase.DefaultSource.createRelation(HBaseRelation.scala:51)
> at
> org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:318)
> at
> org.apache.spark.sql.DataFrameReader.loadV1Source(DataFrameReader.scala:223)
> at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:211)
> at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:167)
> at withCatalog(testme.scala:49)
> ... 65 elided
>
> I have Googled it but with little luck!
>
> Thanks,
> Mich
>
> http://talebzadehmich.wordpress.com
>
>
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