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https://issues.apache.org/jira/browse/SPARK-26602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16784528#comment-16784528
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Sean Owen commented on SPARK-26602:
-----------------------------------
If a user adds something to the classpath, it matters to the whole classpath.
If it's missing, I think it's surprising to ignore that fact. Something else
will fail eventually. I understand you're saying, what if it doesn't affect
some other UDFs? but I'm not sure we can know that. I would not make this
change.
> Insert into table fails after querying the UDF which is loaded with wrong
> hdfs path
> -----------------------------------------------------------------------------------
>
> Key: SPARK-26602
> URL: https://issues.apache.org/jira/browse/SPARK-26602
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.4.0
> Reporter: Haripriya
> Priority: Major
> Attachments: beforeFixUdf.txt
>
>
> In sql,
> 1.Query the existing udf(say myFunc1)
> 2. create and select the udf registered with incorrect path (say myFunc2)
> 3.Now again query the existing udf in the same session - Wil throw exception
> stating that couldn't read resource of myFunc2's path
> 4.Even the basic operations like insert and select will fail giving the same
> error
> Result:
> java.lang.RuntimeException: Failed to read external resource
> hdfs:///tmp/hari_notexists1/two_udfs.jar
> at
> org.apache.hadoop.hive.ql.session.SessionState.downloadResource(SessionState.java:1288)
> at
> org.apache.hadoop.hive.ql.session.SessionState.resolveAndDownload(SessionState.java:1242)
> at
> org.apache.hadoop.hive.ql.session.SessionState.add_resources(SessionState.java:1163)
> at
> org.apache.hadoop.hive.ql.session.SessionState.add_resources(SessionState.java:1149)
> at
> org.apache.hadoop.hive.ql.processors.AddResourceProcessor.run(AddResourceProcessor.java:67)
> at
> org.apache.spark.sql.hive.client.HiveClientImpl$$anonfun$runHive$1.apply(HiveClientImpl.scala:737)
> at
> org.apache.spark.sql.hive.client.HiveClientImpl$$anonfun$runHive$1.apply(HiveClientImpl.scala:706)
> at
> org.apache.spark.sql.hive.client.HiveClientImpl$$anonfun$withHiveState$1.apply(HiveClientImpl.scala:275)
> at
> org.apache.spark.sql.hive.client.HiveClientImpl.liftedTree1$1(HiveClientImpl.scala:213)
> at
> org.apache.spark.sql.hive.client.HiveClientImpl.retryLocked(HiveClientImpl.scala:212)
> at
> org.apache.spark.sql.hive.client.HiveClientImpl.withHiveState(HiveClientImpl.scala:258)
> at
> org.apache.spark.sql.hive.client.HiveClientImpl.runHive(HiveClientImpl.scala:706)
> at
> org.apache.spark.sql.hive.client.HiveClientImpl.runSqlHive(HiveClientImpl.scala:696)
> at
> org.apache.spark.sql.hive.client.HiveClientImpl.addJar(HiveClientImpl.scala:841)
> at
> org.apache.spark.sql.hive.HiveSessionResourceLoader.addJar(HiveSessionStateBuilder.scala:112)
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