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https://issues.apache.org/jira/browse/SPARK-16515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15374234#comment-15374234
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Yi Zhou commented on SPARK-16515:
---------------------------------
Thank you for your quick attention for this issue.
> [SPARK][SQL] transformation script got failure for python script
> ----------------------------------------------------------------
>
> Key: SPARK-16515
> URL: https://issues.apache.org/jira/browse/SPARK-16515
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.0.0
> Reporter: Yi Zhou
> Priority: Critical
>
> Run below SQL and get transformation script error for python script like
> below error message.
> Query SQL:
> {code}
> CREATE VIEW q02_spark_sql_engine_validation_power_test_0_temp AS
> SELECT DISTINCT
> sessionid,
> wcs_item_sk
> FROM
> (
> FROM
> (
> SELECT
> wcs_user_sk,
> wcs_item_sk,
> (wcs_click_date_sk * 24 * 60 * 60 + wcs_click_time_sk) AS tstamp_inSec
> FROM web_clickstreams
> WHERE wcs_item_sk IS NOT NULL
> AND wcs_user_sk IS NOT NULL
> DISTRIBUTE BY wcs_user_sk
> SORT BY
> wcs_user_sk,
> tstamp_inSec -- "sessionize" reducer script requires the cluster by uid
> and sort by tstamp
> ) clicksAnWebPageType
> REDUCE
> wcs_user_sk,
> tstamp_inSec,
> wcs_item_sk
> USING 'python q2-sessionize.py 3600'
> AS (
> wcs_item_sk BIGINT,
> sessionid STRING)
> ) q02_tmp_sessionize
> CLUSTER BY sessionid
> {code}
> Error Message:
> {code}
> 16/07/06 16:59:02 WARN scheduler.TaskSetManager: Lost task 5.0 in stage 157.0
> (TID 171, hw-node5): org.apache.spark.SparkException: Subprocess exited with
> status 1. Error: Traceback (most recent call last):
> File "q2-sessionize.py", line 49, in <module>
> user_sk, tstamp_str, item_sk = line.strip().split("\t")
> ValueError: too many values to unpack
> at
> org.apache.spark.sql.hive.execution.ScriptTransformation$$anon$1.checkFailureAndPropagate(ScriptTransformation.scala:144)
> at
> org.apache.spark.sql.hive.execution.ScriptTransformation$$anon$1.hasNext(ScriptTransformation.scala:192)
> at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:408)
> at
> org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIterator.agg_doAggregateWithKeys$(Unknown
> Source)
> at
> org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIterator.processNext(Unknown
> Source)
> at
> org.apache.spark.sql.execution.BufferedRowIterator.hasNext(BufferedRowIterator.java:43)
> at
> org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$8$$anon$1.hasNext(WholeStageCodegenExec.scala:370)
> at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:408)
> at
> org.apache.spark.shuffle.sort.BypassMergeSortShuffleWriter.write(BypassMergeSortShuffleWriter.java:125)
> at
> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:79)
> at
> org.apache.spark.scheduler.ShuffleMapTask.runTask(ShuffleMapTask.scala:47)
> at org.apache.spark.scheduler.Task.run(Task.scala:85)
> at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:274)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: org.apache.spark.SparkException: Subprocess exited with status 1.
> Error: Traceback (most recent call last):
> File "q2-sessionize.py", line 49, in <module>
> user_sk, tstamp_str, item_sk = line.strip().split("\t")
> ValueError: too many values to unpack
> at
> org.apache.spark.sql.hive.execution.ScriptTransformation$$anon$1.checkFailureAndPropagate(ScriptTransformation.scala:144)
> at
> org.apache.spark.sql.hive.execution.ScriptTransformation$$anon$1.hasNext(ScriptTransformation.scala:181)
> ... 14 more
> 16/07/06 16:59:02 INFO scheduler.TaskSetManager: Lost task 7.0 in stage 157.0
> (TID 173) on executor hw-node5: org.apache.spark.SparkException (Subprocess
> exited with status 1. Error: Traceback (most recent call last):
> File "q2-sessionize.py", line 49, in <module>
> user_sk, tstamp_str, item_sk = line.strip().split("\t")
> ValueError: too many values to unpack
> ) [duplicate 1]
> {code}
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