下面是我的星星之火sql代码,在这里,我试图根据本指南读取一个预置表;https://spark.apache.org/docs/latest/sql-data-sources-jdbc.html
val df = spark.read
.format("jdbc")
.option("driver", "com.facebook.presto.jdbc.PrestoDriver")
.option("url", "jdbc:presto://localhost:8889/mycatalog")
.option("query", "select * from mydb.mytable limit 1")
.option("user", "myuserid")
.load()我得到以下异常,unrecognized connection property 'url'
Exception in thread "main" java.sql.SQLException: Unrecognized connection property 'url'
at com.facebook.presto.jdbc.PrestoDriverUri.validateConnectionProperties(PrestoDriverUri.java:345)
at com.facebook.presto.jdbc.PrestoDriverUri.<init>(PrestoDriverUri.java:102)
at com.facebook.presto.jdbc.PrestoDriverUri.<init>(PrestoDriverUri.java:92)
at com.facebook.presto.jdbc.PrestoDriver.connect(PrestoDriver.java:87)
at org.apache.spark.sql.execution.datasources.jdbc.connection.BasicConnectionProvider.getConnection(BasicConnectionProvider.scala:49)
at org.apache.spark.sql.execution.datasources.jdbc.connection.ConnectionProvider$.create(ConnectionProvider.scala:68)
at org.apache.spark.sql.execution.datasources.jdbc.JdbcUtils$.$anonfun$createConnectionFactory$1(JdbcUtils.scala:62)
at org.apache.spark.sql.execution.datasources.jdbc.JDBCRDD$.resolveTable(JDBCRDD.scala:56)
at org.apache.spark.sql.execution.datasources.jdbc.JDBCRelation$.getSchema(JDBCRelation.scala:226)
at org.apache.spark.sql.execution.datasources.jdbc.JdbcRelationProvider.createRelation(JdbcRelationProvider.scala:35)
at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:354)
at org.apache.spark.sql.DataFrameReader.loadV1Source(DataFrameReader.scala:326)
at org.apache.spark.sql.DataFrameReader.$anonfun$load$3(DataFrameReader.scala:308)
at scala.Option.getOrElse(Option.scala:189)
at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:308)
at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:226)
at org.apache.spark.sql.DataFrameReader.jdbc(DataFrameReader.scala:341)这个问题似乎与https://github.com/prestodb/presto/issues/9254 有关,其中属性url在Presto中不是一个公认的属性,并且看起来修复需要在Spark上完成吗?对于这个问题还有什么其他的解决办法吗?
PS:
Spark Version: 3.1.1
presto-jdbc version: 0.245 发布于 2021-08-30 20:46:15
发布于 2021-10-01 13:39:15
看上去像是火花塞修复了3.3
发布于 2022-08-09 04:05:01
@odonnry是正确的,这个问题是在Spark3.3.x中解决的,但是如果有人不能升级到Spark3.3.x,并且正在尝试使用Trino,我根据@Mohana链接的Jira问题创建了一个解决方案
https://stackoverflow.com/questions/68989208
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