[jira] [Commented] (PARQUET-2193) Encrypting only one field in nested field prevents reading of other fields in nested field without keys

2023-05-10 Thread Vignesh Nageswaran (Jira)


[ 
https://issues.apache.org/jira/browse/PARQUET-2193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17721265#comment-17721265
 ] 

Vignesh Nageswaran commented on PARQUET-2193:
-

[~gershinsky]  sorry for late reply. Yes sir spark 3.4.0 code works without 
setting the parameter `parquet.split.files` to false.  Thanks for raising a PR 
to skip the verification for encrypted files.

> Encrypting only one field in nested field prevents reading of other fields in 
> nested field without keys
> ---
>
> Key: PARQUET-2193
> URL: https://issues.apache.org/jira/browse/PARQUET-2193
> Project: Parquet
>  Issue Type: New Feature
>  Components: parquet-mr
>Affects Versions: 1.12.0
>Reporter: Vignesh Nageswaran
>Priority: Major
>
> Hi Team,
> While exploring parquet encryption, it is found that, if a field in nested 
> column is encrypted , and If I want to read this parquet directory from other 
> applications which does not have encryption keys to decrypt it, I cannot read 
> the remaining fields of the nested column without keys. 
> Example 
> `
> {code:java}
> case class nestedItem(ic: Int = 0, sic : Double, pc: Int = 0)
> case class SquareItem(int_column: Int, square_int_column : Double, 
> partitionCol: Int, nestedCol :nestedItem)
> `{code}
> In the case class `SquareItem` , `nestedCol` field is nested field and I want 
> to encrypt a field `ic` within it. 
>  
> I also want the footer to be non encrypted , so that I can use the encrypted 
> parquet file by legacy applications. 
>  
> Encryption is successful, however, when I query the parquet file using spark 
> 3.3.0 without having any configuration for parquet encryption set up , I 
> cannot non encrypted fields of `nestedCol` `sic`. I was expecting that only 
> `nestedCol` `ic` field will not be querable.
>  
>  
> Reproducer. 
> Spark 3.3.0 Using Spark-shell 
> Downloaded the file 
> [parquet-hadoop-1.12.0-tests.jar|https://repo1.maven.org/maven2/org/apache/parquet/parquet-hadoop/1.12.0/parquet-hadoop-1.12.0-tests.jar]
>  and added it to spark-jars folder
> Code to create encrypted data. #  
>  
> {code:java}
> sc.hadoopConfiguration.set("parquet.crypto.factory.class" 
> ,"org.apache.parquet.crypto.keytools.PropertiesDrivenCryptoFactory")
> sc.hadoopConfiguration.set("parquet.encryption.kms.client.class" 
> ,"org.apache.parquet.crypto.keytools.mocks.InMemoryKMS")
> sc.hadoopConfiguration.set("parquet.encryption.key.list","key1a: 
> BAECAwQFBgcICQoLDA0ODw==, key2a: BAECAAECAAECAAECAAECAA==, keyz: 
> BAECAAECAAECAAECAAECAA==")
> sc.hadoopConfiguration.set("parquet.encryption.key.material.store.internally","false")
> val encryptedParquetPath = "/tmp/par_enc_footer_non_encrypted"
> valpartitionCol = 1
> case class nestedItem(ic: Int = 0, sic : Double, pc: Int = 0)
> case class SquareItem(int_column: Int, square_int_column : Double, 
> partitionCol: Int, nestedCol :nestedItem)
> val dataRange = (1 to 100).toList
> val squares = sc.parallelize(dataRange.map(i => new SquareItem(i, 
> scala.math.pow(i,2), partitionCol,nestedItem(i,i
> squares.toDS().show()
> squares.toDS().write.partitionBy("partitionCol").mode("overwrite").option("parquet.encryption.column.keys",
>  
> "key1a:square_int_column,nestedCol.ic;").option("parquet.encryption.plaintext.footer",true).option("parquet.encryption.footer.key",
>  "keyz").parquet(encryptedParquetPath)
> {code}
> Code to read the data trying to access non encrypted nested field by opening 
> a new spark-shell
>  
> {code:java}
> val encryptedParquetPath = "/tmp/par_enc_footer_non_encrypted"
> spark.sqlContext.read.parquet(encryptedParquetPath).createOrReplaceTempView("test")
> spark.sql("select nestedCol.sic from test").show(){code}
> As you can see that nestedCol.sic is not encrypted , I was expecting the 
> results, but
> I get the below error
>  
> {code:java}
> Caused by: org.apache.parquet.crypto.ParquetCryptoRuntimeException: 
> [square_int_column]. Null File Decryptor
>   at 
> org.apache.parquet.hadoop.metadata.EncryptedColumnChunkMetaData.decryptIfNeeded(ColumnChunkMetaData.java:602)
>   at 
> org.apache.parquet.hadoop.metadata.ColumnChunkMetaData.getEncodings(ColumnChunkMetaData.java:348)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.checkDeltaByteArrayProblem(ParquetRecordReader.java:191)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.initializeInternalReader(ParquetRecordReader.java:177)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.initialize(ParquetRecordReader.java:140)
>   at 
> org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat.$anonfun$buildReaderWithPartitionValues$1(ParquetFileFormat.scala:375)
>   at 
> 

[jira] [Commented] (PARQUET-2193) Encrypting only one field in nested field prevents reading of other fields in nested field without keys

2023-05-02 Thread Vignesh Nageswaran (Jira)


[ 
https://issues.apache.org/jira/browse/PARQUET-2193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17718567#comment-17718567
 ] 

Vignesh Nageswaran commented on PARQUET-2193:
-

[~gershinsky] Sir, could you please let us know will there be any permanent 
fix, without setting the parameter `parquet.split.files` to false 

> Encrypting only one field in nested field prevents reading of other fields in 
> nested field without keys
> ---
>
> Key: PARQUET-2193
> URL: https://issues.apache.org/jira/browse/PARQUET-2193
> Project: Parquet
>  Issue Type: New Feature
>  Components: parquet-mr
>Affects Versions: 1.12.0
>Reporter: Vignesh Nageswaran
>Priority: Major
>
> Hi Team,
> While exploring parquet encryption, it is found that, if a field in nested 
> column is encrypted , and If I want to read this parquet directory from other 
> applications which does not have encryption keys to decrypt it, I cannot read 
> the remaining fields of the nested column without keys. 
> Example 
> `
> {code:java}
> case class nestedItem(ic: Int = 0, sic : Double, pc: Int = 0)
> case class SquareItem(int_column: Int, square_int_column : Double, 
> partitionCol: Int, nestedCol :nestedItem)
> `{code}
> In the case class `SquareItem` , `nestedCol` field is nested field and I want 
> to encrypt a field `ic` within it. 
>  
> I also want the footer to be non encrypted , so that I can use the encrypted 
> parquet file by legacy applications. 
>  
> Encryption is successful, however, when I query the parquet file using spark 
> 3.3.0 without having any configuration for parquet encryption set up , I 
> cannot non encrypted fields of `nestedCol` `sic`. I was expecting that only 
> `nestedCol` `ic` field will not be querable.
>  
>  
> Reproducer. 
> Spark 3.3.0 Using Spark-shell 
> Downloaded the file 
> [parquet-hadoop-1.12.0-tests.jar|https://repo1.maven.org/maven2/org/apache/parquet/parquet-hadoop/1.12.0/parquet-hadoop-1.12.0-tests.jar]
>  and added it to spark-jars folder
> Code to create encrypted data. #  
>  
> {code:java}
> sc.hadoopConfiguration.set("parquet.crypto.factory.class" 
> ,"org.apache.parquet.crypto.keytools.PropertiesDrivenCryptoFactory")
> sc.hadoopConfiguration.set("parquet.encryption.kms.client.class" 
> ,"org.apache.parquet.crypto.keytools.mocks.InMemoryKMS")
> sc.hadoopConfiguration.set("parquet.encryption.key.list","key1a: 
> BAECAwQFBgcICQoLDA0ODw==, key2a: BAECAAECAAECAAECAAECAA==, keyz: 
> BAECAAECAAECAAECAAECAA==")
> sc.hadoopConfiguration.set("parquet.encryption.key.material.store.internally","false")
> val encryptedParquetPath = "/tmp/par_enc_footer_non_encrypted"
> valpartitionCol = 1
> case class nestedItem(ic: Int = 0, sic : Double, pc: Int = 0)
> case class SquareItem(int_column: Int, square_int_column : Double, 
> partitionCol: Int, nestedCol :nestedItem)
> val dataRange = (1 to 100).toList
> val squares = sc.parallelize(dataRange.map(i => new SquareItem(i, 
> scala.math.pow(i,2), partitionCol,nestedItem(i,i
> squares.toDS().show()
> squares.toDS().write.partitionBy("partitionCol").mode("overwrite").option("parquet.encryption.column.keys",
>  
> "key1a:square_int_column,nestedCol.ic;").option("parquet.encryption.plaintext.footer",true).option("parquet.encryption.footer.key",
>  "keyz").parquet(encryptedParquetPath)
> {code}
> Code to read the data trying to access non encrypted nested field by opening 
> a new spark-shell
>  
> {code:java}
> val encryptedParquetPath = "/tmp/par_enc_footer_non_encrypted"
> spark.sqlContext.read.parquet(encryptedParquetPath).createOrReplaceTempView("test")
> spark.sql("select nestedCol.sic from test").show(){code}
> As you can see that nestedCol.sic is not encrypted , I was expecting the 
> results, but
> I get the below error
>  
> {code:java}
> Caused by: org.apache.parquet.crypto.ParquetCryptoRuntimeException: 
> [square_int_column]. Null File Decryptor
>   at 
> org.apache.parquet.hadoop.metadata.EncryptedColumnChunkMetaData.decryptIfNeeded(ColumnChunkMetaData.java:602)
>   at 
> org.apache.parquet.hadoop.metadata.ColumnChunkMetaData.getEncodings(ColumnChunkMetaData.java:348)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.checkDeltaByteArrayProblem(ParquetRecordReader.java:191)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.initializeInternalReader(ParquetRecordReader.java:177)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.initialize(ParquetRecordReader.java:140)
>   at 
> org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat.$anonfun$buildReaderWithPartitionValues$1(ParquetFileFormat.scala:375)
>   at 
> 

[jira] [Comment Edited] (PARQUET-2193) Encrypting only one field in nested field prevents reading of other fields in nested field without keys

2022-10-04 Thread Vignesh Nageswaran (Jira)


[ 
https://issues.apache.org/jira/browse/PARQUET-2193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17612636#comment-17612636
 ] 

Vignesh Nageswaran edited comment on PARQUET-2193 at 10/4/22 3:05 PM:
--

[~gershinsky]  thanks sir, it worked. Could you also please help me to 
understand  about any adverse effects of setting is parameter 


was (Author: JIRAUSER295967):
[~gershinsky]  thanks sir, it worked. 

> Encrypting only one field in nested field prevents reading of other fields in 
> nested field without keys
> ---
>
> Key: PARQUET-2193
> URL: https://issues.apache.org/jira/browse/PARQUET-2193
> Project: Parquet
>  Issue Type: New Feature
>  Components: parquet-mr
>Affects Versions: 1.12.0
>Reporter: Vignesh Nageswaran
>Priority: Major
>
> Hi Team,
> While exploring parquet encryption, it is found that, if a field in nested 
> column is encrypted , and If I want to read this parquet directory from other 
> applications which does not have encryption keys to decrypt it, I cannot read 
> the remaining fields of the nested column without keys. 
> Example 
> `
> {code:java}
> case class nestedItem(ic: Int = 0, sic : Double, pc: Int = 0)
> case class SquareItem(int_column: Int, square_int_column : Double, 
> partitionCol: Int, nestedCol :nestedItem)
> `{code}
> In the case class `SquareItem` , `nestedCol` field is nested field and I want 
> to encrypt a field `ic` within it. 
>  
> I also want the footer to be non encrypted , so that I can use the encrypted 
> parquet file by legacy applications. 
>  
> Encryption is successful, however, when I query the parquet file using spark 
> 3.3.0 without having any configuration for parquet encryption set up , I 
> cannot non encrypted fields of `nestedCol` `sic`. I was expecting that only 
> `nestedCol` `ic` field will not be querable.
>  
>  
> Reproducer. 
> Spark 3.3.0 Using Spark-shell 
> Downloaded the file 
> [parquet-hadoop-1.12.0-tests.jar|https://repo1.maven.org/maven2/org/apache/parquet/parquet-hadoop/1.12.0/parquet-hadoop-1.12.0-tests.jar]
>  and added it to spark-jars folder
> Code to create encrypted data. #  
>  
> {code:java}
> sc.hadoopConfiguration.set("parquet.crypto.factory.class" 
> ,"org.apache.parquet.crypto.keytools.PropertiesDrivenCryptoFactory")
> sc.hadoopConfiguration.set("parquet.encryption.kms.client.class" 
> ,"org.apache.parquet.crypto.keytools.mocks.InMemoryKMS")
> sc.hadoopConfiguration.set("parquet.encryption.key.list","key1a: 
> BAECAwQFBgcICQoLDA0ODw==, key2a: BAECAAECAAECAAECAAECAA==, keyz: 
> BAECAAECAAECAAECAAECAA==")
> sc.hadoopConfiguration.set("parquet.encryption.key.material.store.internally","false")
> val encryptedParquetPath = "/tmp/par_enc_footer_non_encrypted"
> valpartitionCol = 1
> case class nestedItem(ic: Int = 0, sic : Double, pc: Int = 0)
> case class SquareItem(int_column: Int, square_int_column : Double, 
> partitionCol: Int, nestedCol :nestedItem)
> val dataRange = (1 to 100).toList
> val squares = sc.parallelize(dataRange.map(i => new SquareItem(i, 
> scala.math.pow(i,2), partitionCol,nestedItem(i,i
> squares.toDS().show()
> squares.toDS().write.partitionBy("partitionCol").mode("overwrite").option("parquet.encryption.column.keys",
>  
> "key1a:square_int_column,nestedCol.ic;").option("parquet.encryption.plaintext.footer",true).option("parquet.encryption.footer.key",
>  "keyz").parquet(encryptedParquetPath)
> {code}
> Code to read the data trying to access non encrypted nested field by opening 
> a new spark-shell
>  
> {code:java}
> val encryptedParquetPath = "/tmp/par_enc_footer_non_encrypted"
> spark.sqlContext.read.parquet(encryptedParquetPath).createOrReplaceTempView("test")
> spark.sql("select nestedCol.sic from test").show(){code}
> As you can see that nestedCol.sic is not encrypted , I was expecting the 
> results, but
> I get the below error
>  
> {code:java}
> Caused by: org.apache.parquet.crypto.ParquetCryptoRuntimeException: 
> [square_int_column]. Null File Decryptor
>   at 
> org.apache.parquet.hadoop.metadata.EncryptedColumnChunkMetaData.decryptIfNeeded(ColumnChunkMetaData.java:602)
>   at 
> org.apache.parquet.hadoop.metadata.ColumnChunkMetaData.getEncodings(ColumnChunkMetaData.java:348)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.checkDeltaByteArrayProblem(ParquetRecordReader.java:191)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.initializeInternalReader(ParquetRecordReader.java:177)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.initialize(ParquetRecordReader.java:140)
>   at 
> org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat.$anonfun$buildReaderWithPartitionValues$1(ParquetFileFormat.scala:375)
>   at 
> 

[jira] [Commented] (PARQUET-2193) Encrypting only one field in nested field prevents reading of other fields in nested field without keys

2022-10-04 Thread Vignesh Nageswaran (Jira)


[ 
https://issues.apache.org/jira/browse/PARQUET-2193?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=17612636#comment-17612636
 ] 

Vignesh Nageswaran commented on PARQUET-2193:
-

[~gershinsky]  thanks sir, it worked. 

> Encrypting only one field in nested field prevents reading of other fields in 
> nested field without keys
> ---
>
> Key: PARQUET-2193
> URL: https://issues.apache.org/jira/browse/PARQUET-2193
> Project: Parquet
>  Issue Type: New Feature
>  Components: parquet-mr
>Affects Versions: 1.12.0
>Reporter: Vignesh Nageswaran
>Priority: Major
>
> Hi Team,
> While exploring parquet encryption, it is found that, if a field in nested 
> column is encrypted , and If I want to read this parquet directory from other 
> applications which does not have encryption keys to decrypt it, I cannot read 
> the remaining fields of the nested column without keys. 
> Example 
> `
> {code:java}
> case class nestedItem(ic: Int = 0, sic : Double, pc: Int = 0)
> case class SquareItem(int_column: Int, square_int_column : Double, 
> partitionCol: Int, nestedCol :nestedItem)
> `{code}
> In the case class `SquareItem` , `nestedCol` field is nested field and I want 
> to encrypt a field `ic` within it. 
>  
> I also want the footer to be non encrypted , so that I can use the encrypted 
> parquet file by legacy applications. 
>  
> Encryption is successful, however, when I query the parquet file using spark 
> 3.3.0 without having any configuration for parquet encryption set up , I 
> cannot non encrypted fields of `nestedCol` `sic`. I was expecting that only 
> `nestedCol` `ic` field will not be querable.
>  
>  
> Reproducer. 
> Spark 3.3.0 Using Spark-shell 
> Downloaded the file 
> [parquet-hadoop-1.12.0-tests.jar|https://repo1.maven.org/maven2/org/apache/parquet/parquet-hadoop/1.12.0/parquet-hadoop-1.12.0-tests.jar]
>  and added it to spark-jars folder
> Code to create encrypted data. #  
>  
> {code:java}
> sc.hadoopConfiguration.set("parquet.crypto.factory.class" 
> ,"org.apache.parquet.crypto.keytools.PropertiesDrivenCryptoFactory")
> sc.hadoopConfiguration.set("parquet.encryption.kms.client.class" 
> ,"org.apache.parquet.crypto.keytools.mocks.InMemoryKMS")
> sc.hadoopConfiguration.set("parquet.encryption.key.list","key1a: 
> BAECAwQFBgcICQoLDA0ODw==, key2a: BAECAAECAAECAAECAAECAA==, keyz: 
> BAECAAECAAECAAECAAECAA==")
> sc.hadoopConfiguration.set("parquet.encryption.key.material.store.internally","false")
> val encryptedParquetPath = "/tmp/par_enc_footer_non_encrypted"
> valpartitionCol = 1
> case class nestedItem(ic: Int = 0, sic : Double, pc: Int = 0)
> case class SquareItem(int_column: Int, square_int_column : Double, 
> partitionCol: Int, nestedCol :nestedItem)
> val dataRange = (1 to 100).toList
> val squares = sc.parallelize(dataRange.map(i => new SquareItem(i, 
> scala.math.pow(i,2), partitionCol,nestedItem(i,i
> squares.toDS().show()
> squares.toDS().write.partitionBy("partitionCol").mode("overwrite").option("parquet.encryption.column.keys",
>  
> "key1a:square_int_column,nestedCol.ic;").option("parquet.encryption.plaintext.footer",true).option("parquet.encryption.footer.key",
>  "keyz").parquet(encryptedParquetPath)
> {code}
> Code to read the data trying to access non encrypted nested field by opening 
> a new spark-shell
>  
> {code:java}
> val encryptedParquetPath = "/tmp/par_enc_footer_non_encrypted"
> spark.sqlContext.read.parquet(encryptedParquetPath).createOrReplaceTempView("test")
> spark.sql("select nestedCol.sic from test").show(){code}
> As you can see that nestedCol.sic is not encrypted , I was expecting the 
> results, but
> I get the below error
>  
> {code:java}
> Caused by: org.apache.parquet.crypto.ParquetCryptoRuntimeException: 
> [square_int_column]. Null File Decryptor
>   at 
> org.apache.parquet.hadoop.metadata.EncryptedColumnChunkMetaData.decryptIfNeeded(ColumnChunkMetaData.java:602)
>   at 
> org.apache.parquet.hadoop.metadata.ColumnChunkMetaData.getEncodings(ColumnChunkMetaData.java:348)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.checkDeltaByteArrayProblem(ParquetRecordReader.java:191)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.initializeInternalReader(ParquetRecordReader.java:177)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.initialize(ParquetRecordReader.java:140)
>   at 
> org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat.$anonfun$buildReaderWithPartitionValues$1(ParquetFileFormat.scala:375)
>   at 
> org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.org$apache$spark$sql$execution$datasources$FileScanRDD$$anon$$readCurrentFile(FileScanRDD.scala:209)
>   at 
> 

[jira] [Updated] (PARQUET-2194) parquet.encryption.plaintext.footer parameter being true, code expects parquet.encryption.footer.key

2022-09-20 Thread Vignesh Nageswaran (Jira)


 [ 
https://issues.apache.org/jira/browse/PARQUET-2194?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vignesh Nageswaran updated PARQUET-2194:

Description: 
Hi Team,

I want my footer in parquet file to be non encrypted. so I set the 
_parquet.encryption.plaintext.footer_ to be {_}true{_}, but when I tried to run 
my code, parquet-mr is expecting __ value __ for the __ property 
_parquet.encryption.footer.key  **_  

Reproducer

Spark 3.3.0 

Download the 
[file|[https://repo1.maven.org/maven2/org/apache/parquet/parquet-hadoop/1.12.0/parquet-hadoop-1.12.0-tests.jar]
 ] and place it in spark - jar directory 

using spark-shell
{code:java}
sc.hadoopConfiguration.set("parquet.crypto.factory.class" 
,"org.apache.parquet.crypto.keytools.PropertiesDrivenCryptoFactory") 
sc.hadoopConfiguration.set("parquet.encryption.kms.client.class" 
,"org.apache.parquet.crypto.keytools.mocks.InMemoryKMS") 
sc.hadoopConfiguration.set("parquet.encryption.key.list","key1a: 
BAECAwQFBgcICQoLDA0ODw==, key2a: BAECAAECAAECAAECAAECAA==, keyz: 
BAECAAECAAECAAECAAECAA==") 
sc.hadoopConfiguration.set("parquet.encryption.key.material.store.internally","false")
 
val encryptedParquetPath = "/tmp/par_enc_footer_non_encrypted" 
val partitionCol = 1 
case class nestedItem(ic: Int = 0, sic : Double, pc: Int = 0) 
case class SquareItem(int_column: Int, square_int_column : Double, 
partitionCol: Int, nestedCol :nestedItem) 
val dataRange = (1 to 100).toList 
val squares = sc.parallelize(dataRange.map(i => new SquareItem(i, 
scala.math.pow(i,2), partitionCol,nestedItem(i,i 
squares.toDS().show() 
squares.toDS().write.partitionBy("partitionCol").mode("overwrite").option("parquet.encryption.column.keys",
 
"key1a:square_int_column,nestedCol.ic;").option("parquet.encryption.plaintext.footer",true).parquet(encryptedParquetPath){code}
I get the below error, my expectation is if I set properties for my footer to 
be plain text, why do we need keys for footer.

 
{code:java}
 
Caused by: org.apache.parquet.crypto.ParquetCryptoRuntimeException: Undefined 
footer key
  at 
org.apache.parquet.crypto.keytools.PropertiesDrivenCryptoFactory.getFileEncryptionProperties(PropertiesDrivenCryptoFactory.java:88)
  at 
org.apache.parquet.hadoop.ParquetOutputFormat.createEncryptionProperties(ParquetOutputFormat.java:554)
  at 
org.apache.parquet.hadoop.ParquetOutputFormat.getRecordWriter(ParquetOutputFormat.java:478)
  at 
org.apache.parquet.hadoop.ParquetOutputFormat.getRecordWriter(ParquetOutputFormat.java:420)
  at 
org.apache.parquet.hadoop.ParquetOutputFormat.getRecordWriter(ParquetOutputFormat.java:409)
  at 
org.apache.spark.sql.execution.datasources.parquet.ParquetOutputWriter.(ParquetOutputWriter.scala:36)
  at 
org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat$$anon$1.newInstance(ParquetFileFormat.scala:155)
  at 
org.apache.spark.sql.execution.datasources.BaseDynamicPartitionDataWriter.renewCurrentWriter(FileFormatDataWriter.scala:298)
  at 
org.apache.spark.sql.execution.datasources.DynamicPartitionDataSingleWriter.write(FileFormatDataWriter.scala:365)
  at 
org.apache.spark.sql.execution.datasources.FileFormatDataWriter.writeWithMetrics(FileFormatDataWriter.scala:85)
  at 
org.apache.spark.sql.execution.datasources.FileFormatDataWriter.writeWithIterator(FileFormatDataWriter.scala:92)
  at 
org.apache.spark.sql.execution.datasources.FileFormatWriter$.$anonfun$executeTask$1(FileFormatWriter.scala:331)
  at 
org.apache.spark.util.Utils$.tryWithSafeFinallyAndFailureCallbacks(Utils.scala:1538)
  at 
org.apache.spark.sql.execution.datasources.FileFormatWriter$.executeTask(FileFormatWriter.scala:338)
  ... 9 more
{code}
 

  was:
Hi Team,

I want my footer in parquet file to be non encrypted. so I set the 
_parquet.encryption.plaintext.footer_ to be {_}true{_}, but when I tried to run 
my code, parquet-mr is expecting __ value __ for the __ property 
_parquet.encryption.footer.key  **_  

Reproducer

Spark 3.3.0 

Download the 
[file|[https://repo1.maven.org/maven2/org/apache/parquet/parquet-hadoop/1.12.0/parquet-hadoop-1.12.0-tests.jar]
 ] and place it in spark - jar directory 

using spark-shell
{code:java}
sc.hadoopConfiguration.set("parquet.crypto.factory.class" 
,"org.apache.parquet.crypto.keytools.PropertiesDrivenCryptoFactory") 
sc.hadoopConfiguration.set("parquet.encryption.kms.client.class" 
,"org.apache.parquet.crypto.keytools.mocks.InMemoryKMS") 
sc.hadoopConfiguration.set("parquet.encryption.key.list","key1a: 
BAECAwQFBgcICQoLDA0ODw==, key2a: BAECAAECAAECAAECAAECAA==, keyz: 
BAECAAECAAECAAECAAECAA==") 
sc.hadoopConfiguration.set("parquet.encryption.key.material.store.internally","false")
 val encryptedParquetPath = "/tmp/par_enc_footer_non_encrypted" val 
partitionCol = 1 case class nestedItem(ic: Int = 0, sic : Double, pc: Int = 0) 
case class SquareItem(int_column: Int, square_int_column : Double, 
partitionCol: Int, nestedCol :nestedItem) 
val 

[jira] [Created] (PARQUET-2194) parquet.encryption.plaintext.footer parameter being true, code expects parquet.encryption.footer.key

2022-09-20 Thread Vignesh Nageswaran (Jira)
Vignesh Nageswaran created PARQUET-2194:
---

 Summary: parquet.encryption.plaintext.footer parameter being true, 
code expects parquet.encryption.footer.key
 Key: PARQUET-2194
 URL: https://issues.apache.org/jira/browse/PARQUET-2194
 Project: Parquet
  Issue Type: Bug
  Components: parquet-mr
Affects Versions: 1.12.0
Reporter: Vignesh Nageswaran


Hi Team,

I want my footer in parquet file to be non encrypted. so I set the 
_parquet.encryption.plaintext.footer_ to be {_}true{_}, but when I tried to run 
my code, parquet-mr is expecting __ value __ for the __ property 
_parquet.encryption.footer.key  **_  

Reproducer

Spark 3.3.0 

Download the 
[file|[https://repo1.maven.org/maven2/org/apache/parquet/parquet-hadoop/1.12.0/parquet-hadoop-1.12.0-tests.jar]
 ] and place it in spark - jar directory 

using spark-shell
{code:java}
sc.hadoopConfiguration.set("parquet.crypto.factory.class" 
,"org.apache.parquet.crypto.keytools.PropertiesDrivenCryptoFactory") 
sc.hadoopConfiguration.set("parquet.encryption.kms.client.class" 
,"org.apache.parquet.crypto.keytools.mocks.InMemoryKMS") 
sc.hadoopConfiguration.set("parquet.encryption.key.list","key1a: 
BAECAwQFBgcICQoLDA0ODw==, key2a: BAECAAECAAECAAECAAECAA==, keyz: 
BAECAAECAAECAAECAAECAA==") 
sc.hadoopConfiguration.set("parquet.encryption.key.material.store.internally","false")
 val encryptedParquetPath = "/tmp/par_enc_footer_non_encrypted" val 
partitionCol = 1 case class nestedItem(ic: Int = 0, sic : Double, pc: Int = 0) 
case class SquareItem(int_column: Int, square_int_column : Double, 
partitionCol: Int, nestedCol :nestedItem) 
val dataRange = (1 to 100).toList val squares = sc.parallelize(dataRange.map(i 
=> new SquareItem(i, scala.math.pow(i,2), partitionCol,nestedItem(i,i 
squares.toDS().show() 
squares.toDS().write.partitionBy("partitionCol").mode("overwrite").option("parquet.encryption.column.keys",
 
"key1a:square_int_column,nestedCol.ic;").option("parquet.encryption.plaintext.footer",true).parquet(encryptedParquetPath){code}
I get the below error, my expectation is if I set properties for my footer to 
be plain text, why do we need keys for footer.

 
{code:java}
 
Caused by: org.apache.parquet.crypto.ParquetCryptoRuntimeException: Undefined 
footer key
  at 
org.apache.parquet.crypto.keytools.PropertiesDrivenCryptoFactory.getFileEncryptionProperties(PropertiesDrivenCryptoFactory.java:88)
  at 
org.apache.parquet.hadoop.ParquetOutputFormat.createEncryptionProperties(ParquetOutputFormat.java:554)
  at 
org.apache.parquet.hadoop.ParquetOutputFormat.getRecordWriter(ParquetOutputFormat.java:478)
  at 
org.apache.parquet.hadoop.ParquetOutputFormat.getRecordWriter(ParquetOutputFormat.java:420)
  at 
org.apache.parquet.hadoop.ParquetOutputFormat.getRecordWriter(ParquetOutputFormat.java:409)
  at 
org.apache.spark.sql.execution.datasources.parquet.ParquetOutputWriter.(ParquetOutputWriter.scala:36)
  at 
org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat$$anon$1.newInstance(ParquetFileFormat.scala:155)
  at 
org.apache.spark.sql.execution.datasources.BaseDynamicPartitionDataWriter.renewCurrentWriter(FileFormatDataWriter.scala:298)
  at 
org.apache.spark.sql.execution.datasources.DynamicPartitionDataSingleWriter.write(FileFormatDataWriter.scala:365)
  at 
org.apache.spark.sql.execution.datasources.FileFormatDataWriter.writeWithMetrics(FileFormatDataWriter.scala:85)
  at 
org.apache.spark.sql.execution.datasources.FileFormatDataWriter.writeWithIterator(FileFormatDataWriter.scala:92)
  at 
org.apache.spark.sql.execution.datasources.FileFormatWriter$.$anonfun$executeTask$1(FileFormatWriter.scala:331)
  at 
org.apache.spark.util.Utils$.tryWithSafeFinallyAndFailureCallbacks(Utils.scala:1538)
  at 
org.apache.spark.sql.execution.datasources.FileFormatWriter$.executeTask(FileFormatWriter.scala:338)
  ... 9 more
{code}
 



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[jira] [Updated] (PARQUET-2193) Encrypting only one field in nested field prevents reading of other fields in nested field without keys

2022-09-20 Thread Vignesh Nageswaran (Jira)


 [ 
https://issues.apache.org/jira/browse/PARQUET-2193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vignesh Nageswaran updated PARQUET-2193:

Issue Type: New Feature  (was: Bug)

> Encrypting only one field in nested field prevents reading of other fields in 
> nested field without keys
> ---
>
> Key: PARQUET-2193
> URL: https://issues.apache.org/jira/browse/PARQUET-2193
> Project: Parquet
>  Issue Type: New Feature
>  Components: parquet-mr
>Affects Versions: 1.12.0
>Reporter: Vignesh Nageswaran
>Priority: Critical
>
> Hi Team,
> While exploring parquet encryption, it is found that, if a field in nested 
> column is encrypted , and If I want to read this parquet directory from other 
> applications which does not have encryption keys to decrypt it, I cannot read 
> the remaining fields of the nested column without keys. 
> Example 
> `
> {code:java}
> case class nestedItem(ic: Int = 0, sic : Double, pc: Int = 0)
> case class SquareItem(int_column: Int, square_int_column : Double, 
> partitionCol: Int, nestedCol :nestedItem)
> `{code}
> In the case class `SquareItem` , `nestedCol` field is nested field and I want 
> to encrypt a field `ic` within it. 
>  
> I also want the footer to be non encrypted , so that I can use the encrypted 
> parquet file by legacy applications. 
>  
> Encryption is successful, however, when I query the parquet file using spark 
> 3.3.0 without having any configuration for parquet encryption set up , I 
> cannot non encrypted fields of `nestedCol` `sic`. I was expecting that only 
> `nestedCol` `ic` field will not be querable.
>  
>  
> Reproducer. 
> Spark 3.3.0 Using Spark-shell 
> Downloaded the file 
> [parquet-hadoop-1.12.0-tests.jar|https://repo1.maven.org/maven2/org/apache/parquet/parquet-hadoop/1.12.0/parquet-hadoop-1.12.0-tests.jar]
>  and added it to spark-jars folder
> Code to create encrypted data. #  
>  
> {code:java}
> sc.hadoopConfiguration.set("parquet.crypto.factory.class" 
> ,"org.apache.parquet.crypto.keytools.PropertiesDrivenCryptoFactory")
> sc.hadoopConfiguration.set("parquet.encryption.kms.client.class" 
> ,"org.apache.parquet.crypto.keytools.mocks.InMemoryKMS")
> sc.hadoopConfiguration.set("parquet.encryption.key.list","key1a: 
> BAECAwQFBgcICQoLDA0ODw==, key2a: BAECAAECAAECAAECAAECAA==, keyz: 
> BAECAAECAAECAAECAAECAA==")
> sc.hadoopConfiguration.set("parquet.encryption.key.material.store.internally","false")
> val encryptedParquetPath = "/tmp/par_enc_footer_non_encrypted"
> valpartitionCol = 1
> case class nestedItem(ic: Int = 0, sic : Double, pc: Int = 0)
> case class SquareItem(int_column: Int, square_int_column : Double, 
> partitionCol: Int, nestedCol :nestedItem)
> val dataRange = (1 to 100).toList
> val squares = sc.parallelize(dataRange.map(i => new SquareItem(i, 
> scala.math.pow(i,2), partitionCol,nestedItem(i,i
> squares.toDS().show()
> squares.toDS().write.partitionBy("partitionCol").mode("overwrite").option("parquet.encryption.column.keys",
>  
> "key1a:square_int_column,nestedCol.ic;").option("parquet.encryption.plaintext.footer",true).option("parquet.encryption.footer.key",
>  "keyz").parquet(encryptedParquetPath)
> {code}
> Code to read the data trying to access non encrypted nested field by opening 
> a new spark-shell
>  
> {code:java}
> val encryptedParquetPath = "/tmp/par_enc_footer_non_encrypted"
> spark.sqlContext.read.parquet(encryptedParquetPath).createOrReplaceTempView("test")
> spark.sql("select nestedCol.sic from test").show(){code}
> As you can see that nestedCol.sic is not encrypted , I was expecting the 
> results, but
> I get the below error
>  
> {code:java}
> Caused by: org.apache.parquet.crypto.ParquetCryptoRuntimeException: 
> [square_int_column]. Null File Decryptor
>   at 
> org.apache.parquet.hadoop.metadata.EncryptedColumnChunkMetaData.decryptIfNeeded(ColumnChunkMetaData.java:602)
>   at 
> org.apache.parquet.hadoop.metadata.ColumnChunkMetaData.getEncodings(ColumnChunkMetaData.java:348)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.checkDeltaByteArrayProblem(ParquetRecordReader.java:191)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.initializeInternalReader(ParquetRecordReader.java:177)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.initialize(ParquetRecordReader.java:140)
>   at 
> org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat.$anonfun$buildReaderWithPartitionValues$1(ParquetFileFormat.scala:375)
>   at 
> org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.org$apache$spark$sql$execution$datasources$FileScanRDD$$anon$$readCurrentFile(FileScanRDD.scala:209)
>   at 
> org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.nextIterator(FileScanRDD.scala:270)
>   at 
> 

[jira] [Updated] (PARQUET-2193) Encrypting only one field in nested field prevents reading of other fields in nested field without keys

2022-09-20 Thread Vignesh Nageswaran (Jira)


 [ 
https://issues.apache.org/jira/browse/PARQUET-2193?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Vignesh Nageswaran updated PARQUET-2193:

Priority: Major  (was: Critical)

> Encrypting only one field in nested field prevents reading of other fields in 
> nested field without keys
> ---
>
> Key: PARQUET-2193
> URL: https://issues.apache.org/jira/browse/PARQUET-2193
> Project: Parquet
>  Issue Type: New Feature
>  Components: parquet-mr
>Affects Versions: 1.12.0
>Reporter: Vignesh Nageswaran
>Priority: Major
>
> Hi Team,
> While exploring parquet encryption, it is found that, if a field in nested 
> column is encrypted , and If I want to read this parquet directory from other 
> applications which does not have encryption keys to decrypt it, I cannot read 
> the remaining fields of the nested column without keys. 
> Example 
> `
> {code:java}
> case class nestedItem(ic: Int = 0, sic : Double, pc: Int = 0)
> case class SquareItem(int_column: Int, square_int_column : Double, 
> partitionCol: Int, nestedCol :nestedItem)
> `{code}
> In the case class `SquareItem` , `nestedCol` field is nested field and I want 
> to encrypt a field `ic` within it. 
>  
> I also want the footer to be non encrypted , so that I can use the encrypted 
> parquet file by legacy applications. 
>  
> Encryption is successful, however, when I query the parquet file using spark 
> 3.3.0 without having any configuration for parquet encryption set up , I 
> cannot non encrypted fields of `nestedCol` `sic`. I was expecting that only 
> `nestedCol` `ic` field will not be querable.
>  
>  
> Reproducer. 
> Spark 3.3.0 Using Spark-shell 
> Downloaded the file 
> [parquet-hadoop-1.12.0-tests.jar|https://repo1.maven.org/maven2/org/apache/parquet/parquet-hadoop/1.12.0/parquet-hadoop-1.12.0-tests.jar]
>  and added it to spark-jars folder
> Code to create encrypted data. #  
>  
> {code:java}
> sc.hadoopConfiguration.set("parquet.crypto.factory.class" 
> ,"org.apache.parquet.crypto.keytools.PropertiesDrivenCryptoFactory")
> sc.hadoopConfiguration.set("parquet.encryption.kms.client.class" 
> ,"org.apache.parquet.crypto.keytools.mocks.InMemoryKMS")
> sc.hadoopConfiguration.set("parquet.encryption.key.list","key1a: 
> BAECAwQFBgcICQoLDA0ODw==, key2a: BAECAAECAAECAAECAAECAA==, keyz: 
> BAECAAECAAECAAECAAECAA==")
> sc.hadoopConfiguration.set("parquet.encryption.key.material.store.internally","false")
> val encryptedParquetPath = "/tmp/par_enc_footer_non_encrypted"
> valpartitionCol = 1
> case class nestedItem(ic: Int = 0, sic : Double, pc: Int = 0)
> case class SquareItem(int_column: Int, square_int_column : Double, 
> partitionCol: Int, nestedCol :nestedItem)
> val dataRange = (1 to 100).toList
> val squares = sc.parallelize(dataRange.map(i => new SquareItem(i, 
> scala.math.pow(i,2), partitionCol,nestedItem(i,i
> squares.toDS().show()
> squares.toDS().write.partitionBy("partitionCol").mode("overwrite").option("parquet.encryption.column.keys",
>  
> "key1a:square_int_column,nestedCol.ic;").option("parquet.encryption.plaintext.footer",true).option("parquet.encryption.footer.key",
>  "keyz").parquet(encryptedParquetPath)
> {code}
> Code to read the data trying to access non encrypted nested field by opening 
> a new spark-shell
>  
> {code:java}
> val encryptedParquetPath = "/tmp/par_enc_footer_non_encrypted"
> spark.sqlContext.read.parquet(encryptedParquetPath).createOrReplaceTempView("test")
> spark.sql("select nestedCol.sic from test").show(){code}
> As you can see that nestedCol.sic is not encrypted , I was expecting the 
> results, but
> I get the below error
>  
> {code:java}
> Caused by: org.apache.parquet.crypto.ParquetCryptoRuntimeException: 
> [square_int_column]. Null File Decryptor
>   at 
> org.apache.parquet.hadoop.metadata.EncryptedColumnChunkMetaData.decryptIfNeeded(ColumnChunkMetaData.java:602)
>   at 
> org.apache.parquet.hadoop.metadata.ColumnChunkMetaData.getEncodings(ColumnChunkMetaData.java:348)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.checkDeltaByteArrayProblem(ParquetRecordReader.java:191)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.initializeInternalReader(ParquetRecordReader.java:177)
>   at 
> org.apache.parquet.hadoop.ParquetRecordReader.initialize(ParquetRecordReader.java:140)
>   at 
> org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat.$anonfun$buildReaderWithPartitionValues$1(ParquetFileFormat.scala:375)
>   at 
> org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.org$apache$spark$sql$execution$datasources$FileScanRDD$$anon$$readCurrentFile(FileScanRDD.scala:209)
>   at 
> org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.nextIterator(FileScanRDD.scala:270)
>   at 
> 

[jira] [Created] (PARQUET-2193) Encrypting only one field in nested field prevents reading of other fields in nested field without keys

2022-09-20 Thread Vignesh Nageswaran (Jira)
Vignesh Nageswaran created PARQUET-2193:
---

 Summary: Encrypting only one field in nested field prevents 
reading of other fields in nested field without keys
 Key: PARQUET-2193
 URL: https://issues.apache.org/jira/browse/PARQUET-2193
 Project: Parquet
  Issue Type: Bug
  Components: parquet-mr
Affects Versions: 1.12.0
Reporter: Vignesh Nageswaran


Hi Team,

While exploring parquet encryption, it is found that, if a field in nested 
column is encrypted , and If I want to read this parquet directory from other 
applications which does not have encryption keys to decrypt it, I cannot read 
the remaining fields of the nested column without keys. 

Example 

`
{code:java}
case class nestedItem(ic: Int = 0, sic : Double, pc: Int = 0)
case class SquareItem(int_column: Int, square_int_column : Double, 
partitionCol: Int, nestedCol :nestedItem)
`{code}

In the case class `SquareItem` , `nestedCol` field is nested field and I want 
to encrypt a field `ic` within it. 
 
I also want the footer to be non encrypted , so that I can use the encrypted 
parquet file by legacy applications. 
 
Encryption is successful, however, when I query the parquet file using spark 
3.3.0 without having any configuration for parquet encryption set up , I cannot 
non encrypted fields of `nestedCol` `sic`. I was expecting that only 
`nestedCol` `ic` field will not be querable.
 
 
Reproducer. 
Spark 3.3.0 Using Spark-shell 
Downloaded the file 
[parquet-hadoop-1.12.0-tests.jar|https://repo1.maven.org/maven2/org/apache/parquet/parquet-hadoop/1.12.0/parquet-hadoop-1.12.0-tests.jar]
 and added it to spark-jars folder
Code to create encrypted data. #  

 
{code:java}
sc.hadoopConfiguration.set("parquet.crypto.factory.class" 
,"org.apache.parquet.crypto.keytools.PropertiesDrivenCryptoFactory")

sc.hadoopConfiguration.set("parquet.encryption.kms.client.class" 
,"org.apache.parquet.crypto.keytools.mocks.InMemoryKMS")

sc.hadoopConfiguration.set("parquet.encryption.key.list","key1a: 
BAECAwQFBgcICQoLDA0ODw==, key2a: BAECAAECAAECAAECAAECAA==, keyz: 
BAECAAECAAECAAECAAECAA==")

sc.hadoopConfiguration.set("parquet.encryption.key.material.store.internally","false")

val encryptedParquetPath = "/tmp/par_enc_footer_non_encrypted"
valpartitionCol = 1
case class nestedItem(ic: Int = 0, sic : Double, pc: Int = 0)
case class SquareItem(int_column: Int, square_int_column : Double, 
partitionCol: Int, nestedCol :nestedItem)
val dataRange = (1 to 100).toList
val squares = sc.parallelize(dataRange.map(i => new SquareItem(i, 
scala.math.pow(i,2), partitionCol,nestedItem(i,i
squares.toDS().show()
squares.toDS().write.partitionBy("partitionCol").mode("overwrite").option("parquet.encryption.column.keys",
 
"key1a:square_int_column,nestedCol.ic;").option("parquet.encryption.plaintext.footer",true).option("parquet.encryption.footer.key",
 "keyz").parquet(encryptedParquetPath)
{code}


Code to read the data trying to access non encrypted nested field by opening a 
new spark-shell
 


{code:java}
val encryptedParquetPath = "/tmp/par_enc_footer_non_encrypted"
spark.sqlContext.read.parquet(encryptedParquetPath).createOrReplaceTempView("test")
spark.sql("select nestedCol.sic from test").show(){code}

As you can see that nestedCol.sic is not encrypted , I was expecting the 
results, but
I get the below error
 


{code:java}
Caused by: org.apache.parquet.crypto.ParquetCryptoRuntimeException: 
[square_int_column]. Null File Decryptor
  at 
org.apache.parquet.hadoop.metadata.EncryptedColumnChunkMetaData.decryptIfNeeded(ColumnChunkMetaData.java:602)
  at 
org.apache.parquet.hadoop.metadata.ColumnChunkMetaData.getEncodings(ColumnChunkMetaData.java:348)
  at 
org.apache.parquet.hadoop.ParquetRecordReader.checkDeltaByteArrayProblem(ParquetRecordReader.java:191)
  at 
org.apache.parquet.hadoop.ParquetRecordReader.initializeInternalReader(ParquetRecordReader.java:177)
  at 
org.apache.parquet.hadoop.ParquetRecordReader.initialize(ParquetRecordReader.java:140)
  at 
org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat.$anonfun$buildReaderWithPartitionValues$1(ParquetFileFormat.scala:375)
  at 
org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.org$apache$spark$sql$execution$datasources$FileScanRDD$$anon$$readCurrentFile(FileScanRDD.scala:209)
  at 
org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.nextIterator(FileScanRDD.scala:270)
  at 
org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.hasNext(FileScanRDD.scala:116)
  at scala.collection.Iterator$$anon$10.hasNext(Iterator.scala:460)
  at 
org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIteratorForCodegenStage1.processNext(Unknown
 Source)
  at 
org.apache.spark.sql.execution.BufferedRowIterator.hasNext(BufferedRowIterator.java:43)
  at