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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2022/05/16 07:04:15 UTC
[GitHub] [spark] AnywalkerGiser opened a new pull request, #36559: [SPARK-39176][PYSPARK] Fixed a problem with pyspark serializing pre-1970 datetime in windows
AnywalkerGiser opened a new pull request, #36559:
URL: https://github.com/apache/spark/pull/36559
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### What changes were proposed in this pull request?
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Fix problems with pyspark in Windows:
1. Fixed datetime conversion to timestamp before 1970;
2. Fixed datetime conversion when timestamp is negative;
3. Adding a test script.
### Why are the changes needed?
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1. If you propose a new API, clarify the use case for a new API.
2. If you fix a bug, you can clarify why it is a bug.
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Pyspark has problems serializing pre-1970 times in Windows.
An exception occurs when executing the following code under Windows:
```python
rdd = sc.parallelize([('a', datetime(1957, 1, 9, 0, 0)),
('b', datetime(2014, 1, 27, 0, 0))])
df = spark.createDataFrame(rdd, ["id", "date"])
df.show()
df.printSchema()
print(df.collect())
```
```bash
File "...\spark\python\lib\pyspark.zip\pyspark\sql\types.py", line 195, in toInternal
else time.mktime(dt.timetuple()))
OverflowError: mktime argument out of range
at org.apache.spark.api.python.BasePythonRunner$ReaderIterator.handlePythonException(PythonRunner.scala:503)
at org.apache.spark.api.python.PythonRunner$$anon$3.read(PythonRunner.scala:638)
at org.apache.spark.api.python.PythonRunner$$anon$3.read(PythonRunner.scala:621)
at org.apache.spark.api.python.BasePythonRunner$ReaderIterator.hasNext(PythonRunner.scala:456)
at org.apache.spark.InterruptibleIterator.hasNext(InterruptibleIterator.scala:37)
at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:489)
at scala.collection.Iterator$$anon$10.hasNext(Iterator.scala:458)
at scala.collection.Iterator$$anon$10.hasNext(Iterator.scala:458)
at org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIteratorForCodegenStage1.processNext(Unknown Source)
at org.apache.spark.sql.execution.BufferedRowIterator.hasNext(BufferedRowIterator.java:43)
at org.apache.spark.sql.execution.WholeStageCodegenExec$$anon$1.hasNext(WholeStageCodegenExec.scala:729)
at org.apache.spark.sql.execution.SparkPlan.$anonfun$getByteArrayRdd$1(SparkPlan.scala:340)
at org.apache.spark.rdd.RDD.$anonfun$mapPartitionsInternal$2(RDD.scala:872)
at org.apache.spark.rdd.RDD.$anonfun$mapPartitionsInternal$2$adapted(RDD.scala:872)
at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:52)
at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:349)
at org.apache.spark.rdd.RDD.iterator(RDD.scala:313)
at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:90)
at org.apache.spark.scheduler.Task.run(Task.scala:127)
at org.apache.spark.executor.Executor$TaskRunner.$anonfun$run$3(Executor.scala:446)
at org.apache.spark.util.Utils$.tryWithSafeFinally(Utils.scala:1377)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:449)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
... 1 more
```
and
```bash
File ...\spark\python\lib\pyspark.zip\pyspark\sql\types.py, in fromInternal:
Line 207: return datetime.datetime.fromtimestamp(ts // 1000000).replace(microsecond=ts % 1000000)
OSError: [Errno 22] Invalid argument
```
After updating the code, the above code was run successfully！
```bash
+---+-------------------+
| id| date|
+---+-------------------+
| a|1957-01-08 16:00:00|
| b|2014-01-26 16:00:00|
+---+-------------------+
root
|-- id: string (nullable = true)
|-- date: timestamp (nullable = true)
[Row(id='a', date=datetime.datetime(1957, 1, 9, 0, 0)), Row(id='b', date=datetime.datetime(2014, 1, 27, 0, 0))]
```
### Does this PR introduce _any_ user-facing change?
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No
### How was this patch tested?
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New and existing test suites
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[GitHub] [spark] AnywalkerGiser closed pull request #36559: [SPARK-39176][PYSPARK] Fixed a problem with pyspark serializing pre-1970 datetime in windows
Posted by GitBox <gi...@apache.org>.
AnywalkerGiser closed pull request #36559: [SPARK-39176][PYSPARK] Fixed a problem with pyspark serializing pre-1970 datetime in windows
URL: https://github.com/apache/spark/pull/36559
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[GitHub] [spark] AnywalkerGiser closed pull request #36559: [SPARK-39176][PYSPARK] Fixed a problem with pyspark serializing pre-1970 datetime in windows
Posted by GitBox <gi...@apache.org>.
AnywalkerGiser closed pull request #36559: [SPARK-39176][PYSPARK] Fixed a problem with pyspark serializing pre-1970 datetime in windows
URL: https://github.com/apache/spark/pull/36559
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[GitHub] [spark] AmplabJenkins commented on pull request #36559: [SPARK-39176][PYSPARK] Fixed a problem with pyspark serializing pre-1970 datetime in windows
Posted by GitBox <gi...@apache.org>.
AmplabJenkins commented on PR #36559:
URL: https://github.com/apache/spark/pull/36559#issuecomment-1127364481
Can one of the admins verify this patch?
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