java.lang.NoClassDefFoundError on Databricks

[nohanaga]

I used pyrasterframes v0.10.1 with Databricks 9.1 LTS ML (includes Apache Spark 3.1.2, Scala 2.12). I get the following error and cannot access the dataframe.

---------------------------------------------------------------------------
Py4JJavaError                             Traceback (most recent call last)
<command-1914649719011683> in <module>
----> 1 df.head()

/databricks/spark/python/pyspark/sql/dataframe.py in head(self, n)
   1742         """
   1743         if n is None:
-> 1744             rs = self.head(1)
   1745             return rs[0] if rs else None
   1746         return self.take(n)

/databricks/spark/python/pyspark/sql/dataframe.py in head(self, n)
   1744             rs = self.head(1)
   1745             return rs[0] if rs else None
-> 1746         return self.take(n)
   1747 
   1748     def first(self):

/databricks/spark/python/pyspark/sql/dataframe.py in take(self, num)
    767         [Row(age=2, name='Alice'), Row(age=5, name='Bob')]
    768         """
--> 769         return self.limit(num).collect()
    770 
    771     def tail(self, num):

/databricks/spark/python/pyspark/sql/dataframe.py in collect(self)
    713         # Default path used in OSS Spark / for non-DF-ACL clusters:
    714         with SCCallSiteSync(self._sc) as css:
--> 715             sock_info = self._jdf.collectToPython()
    716         return list(_load_from_socket(sock_info, BatchedSerializer(PickleSerializer())))
    717 

/databricks/spark/python/lib/py4j-0.10.9.1-src.zip/py4j/java_gateway.py in __call__(self, *args)
   1302 
   1303         answer = self.gateway_client.send_command(command)
-> 1304         return_value = get_return_value(
   1305             answer, self.gateway_client, self.target_id, self.name)
   1306 

/databricks/spark/python/pyspark/sql/utils.py in deco(*a, **kw)
    115     def deco(*a, **kw):
    116         try:
--> 117             return f(*a, **kw)
    118         except py4j.protocol.Py4JJavaError as e:
    119             converted = convert_exception(e.java_exception)

/databricks/spark/python/lib/py4j-0.10.9.1-src.zip/py4j/protocol.py in get_return_value(answer, gateway_client, target_id, name)
    324             value = OUTPUT_CONVERTER[type](answer[2:], gateway_client)
    325             if answer[1] == REFERENCE_TYPE:
--> 326                 raise Py4JJavaError(
    327                     "An error occurred while calling {0}{1}{2}.\n".
    328                     format(target_id, ".", name), value)

Py4JJavaError: An error occurred while calling o512.collectToPython.
: java.lang.NoClassDefFoundError: Could not initialize class org.locationtech.rasterframes.ref.RFRasterSource$
    at org.locationtech.rasterframes.expressions.transformers.URIToRasterSource$.apply(URIToRasterSource.scala:62)
    at org.locationtech.rasterframes.datasource.raster.RasterSourceRelation.$anonfun$buildScan$6(RasterSourceRelation.scala:114)
    at scala.collection.TraversableLike$WithFilter.$anonfun$map$2(TraversableLike.scala:935)
    at scala.collection.mutable.ResizableArray.foreach(ResizableArray.scala:62)
    at scala.collection.mutable.ResizableArray.foreach$(ResizableArray.scala:55)
    at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:49)
    at scala.collection.TraversableLike$WithFilter.map(TraversableLike.scala:934)
    at org.locationtech.rasterframes.datasource.raster.RasterSourceRelation.buildScan(RasterSourceRelation.scala:113)
    at org.apache.spark.sql.execution.datasources.DataSourceStrategy$.apply(DataSourceStrategy.scala:458)
    at org.apache.spark.sql.catalyst.planning.QueryPlanner.$anonfun$plan$2(QueryPlanner.scala:69)
    at com.databricks.spark.util.FrameProfiler$.record(FrameProfiler.scala:80)
    at org.apache.spark.sql.catalyst.planning.QueryPlanner.$anonfun$plan$1(QueryPlanner.scala:69)
    at scala.collection.Iterator$$anon$11.nextCur(Iterator.scala:486)
    at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:492)
    at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:491)
    at org.apache.spark.sql.catalyst.planning.QueryPlanner.plan(QueryPlanner.scala:100)
    at org.apache.spark.sql.execution.SparkStrategies.plan(SparkStrategies.scala:78)
    at org.apache.spark.sql.catalyst.planning.QueryPlanner.$anonfun$plan$4(QueryPlanner.scala:85)
    at scala.collection.TraversableOnce$folder$1.apply(TraversableOnce.scala:196)
    at scala.collection.TraversableOnce$folder$1.apply(TraversableOnce.scala:194)
    at scala.collection.Iterator.foreach(Iterator.scala:943)
    at scala.collection.Iterator.foreach$(Iterator.scala:943)
    at scala.collection.AbstractIterator.foreach(Iterator.scala:1431)
    at scala.collection.TraversableOnce.foldLeft(TraversableOnce.scala:199)
    at scala.collection.TraversableOnce.foldLeft$(TraversableOnce.scala:192)
    at scala.collection.AbstractIterator.foldLeft(Iterator.scala:1431)
    at org.apache.spark.sql.catalyst.planning.QueryPlanner.$anonfun$plan$3(QueryPlanner.scala:82)
    at scala.collection.Iterator$$anon$11.nextCur(Iterator.scala:486)
    at scala.collection.Iterator$$anon$11.hasNext(Iterator.scala:492)
    at org.apache.spark.sql.catalyst.planning.QueryPlanner.plan(QueryPlanner.scala:100)
    at org.apache.spark.sql.execution.SparkStrategies.plan(SparkStrategies.scala:78)
    at org.apache.spark.sql.execution.QueryExecution$.createSparkPlan(QueryExecution.scala:621)
    at org.apache.spark.sql.execution.QueryExecution.$anonfun$sparkPlan$1(QueryExecution.scala:215)
    at com.databricks.spark.util.FrameProfiler$.record(FrameProfiler.scala:80)
    at org.apache.spark.sql.catalyst.QueryPlanningTracker.measurePhase(QueryPlanningTracker.scala:268)
    at org.apache.spark.sql.execution.QueryExecution.$anonfun$executePhase$1(QueryExecution.scala:265)
    at org.apache.spark.sql.SparkSession.withActive(SparkSession.scala:968)
    at org.apache.spark.sql.execution.QueryExecution.executePhase(QueryExecution.scala:265)
    at org.apache.spark.sql.execution.QueryExecution.sparkPlan$lzycompute(QueryExecution.scala:215)
    at org.apache.spark.sql.execution.QueryExecution.sparkPlan(QueryExecution.scala:208)
    at org.apache.spark.sql.execution.QueryExecution.$anonfun$executedPlan$1(QueryExecution.scala:227)
    at org.apache.spark.sql.SparkSession.withActive(SparkSession.scala:968)
    at org.apache.spark.sql.execution.QueryExecution.executedPlan$lzycompute(QueryExecution.scala:227)
    at org.apache.spark.sql.execution.QueryExecution.executedPlan(QueryExecution.scala:222)
    at com.databricks.sql.transaction.tahoe.metering.DeltaMetering$.reportUsage(DeltaMetering.scala:136)
    at org.apache.spark.sql.execution.SQLExecution$.$anonfun$withCustomExecutionEnv$8(SQLExecution.scala:303)
    at org.apache.spark.sql.execution.SQLExecution$.withSQLConfPropagated(SQLExecution.scala:386)
    at org.apache.spark.sql.execution.SQLExecution$.$anonfun$withCustomExecutionEnv$1(SQLExecution.scala:186)
    at org.apache.spark.sql.SparkSession.withActive(SparkSession.scala:968)
    at org.apache.spark.sql.execution.SQLExecution$.withCustomExecutionEnv(SQLExecution.scala:141)
    at org.apache.spark.sql.execution.SQLExecution$.withNewExecutionId(SQLExecution.scala:336)
    at org.apache.spark.sql.Dataset.withAction(Dataset.scala:3949)
    at org.apache.spark.sql.Dataset.collectToPython(Dataset.scala:3737)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at py4j.reflection.MethodInvoker.invoke(MethodInvoker.java:244)
    at py4j.reflection.ReflectionEngine.invoke(ReflectionEngine.java:380)
    at py4j.Gateway.invoke(Gateway.java:295)
    at py4j.commands.AbstractCommand.invokeMethod(AbstractCommand.java:132)
    at py4j.commands.CallCommand.execute(CallCommand.java:79)
    at py4j.GatewayConnection.run(GatewayConnection.java:251)
    at java.lang.Thread.run(Thread.java:748)

Code

from pyrasterframes.utils import create_rf_spark_session
spark = create_rf_spark_session()
df = spark.read.raster('https://modis-pds.s3.amazonaws.com/MCD43A4.006/11/08/2019059/MCD43A4.A2019059.h11v08.006.2019072203257_B02.TIF')
#no error
df.printSchema()

#error
df.head()
#error
df.count()

Prerequisite

Basically, I used this explanation as a guide. https://www.databricks.com/notebooks/rasterframes-notebook.html

1. Setup GDAL Init Script

   #! /bin/bash
   sudo add-apt-repository ppa:ubuntugis/ppa
   sudo apt-get update
   sudo apt-get install -y cmake gdal-bin libgdal-dev python3-gdal
   """,
   True)

   The above file was created and registered in the Cluster-scoped init script.

2. Install RasterFrames on the Cluster Databricks can only use Spark 3 or higher. Therefore, the latest rasterframes release, v0.10.1, was used.
   1. download https://github.com/locationtech/rasterframes/archive/refs/tags/0.10.1.zip.
   2. Unzip and run sbt publishLocal to obtain pyrasterframes .jar and .whl. a. pyrasterframes-assembly-0.10.1.jar b. pyrasterframes-0.10.1-py3-none-any.whl Register these two files in the cluster library.

Execution conditions

Confirmed on Spark Notebook.

1. gdalinfo

   !gdalinfo --version
   GDAL 3.3.2, released 2021/09/01

2. gdal_version, build_info

   from pyrasterframes.utils import gdal_version, build_info
   print(gdal_version())
   print(build_info())
   
   GDAL 3.3.2, released 2021/09/01
   {'scalaVersion': '2.12.15', 'sbtVersion': '1.5.5', 'name': 'core', 'rfSparkVersion': '3.1.2', 'rfGeoMesaVersion': '3.2.0', 'GDAL': 'GDAL 3.3.2, released 2021/09/01', 'rfGeoTrellisVersion': '3.6.1', 'version': '0.10.1'}

3. Java Version

   !java -version
   
   openjdk version "1.8.0_345"
   OpenJDK Runtime Environment (Zulu 8.64.0.19-CA-linux64) (build 1.8.0_345-b01)
   OpenJDK 64-Bit Server VM (Zulu 8.64.0.19-CA-linux64) (build 25.345-b01, mixed mode)

I would like to use pyrasterframes on Databricks, so please investigate.

[pomadchin]

Hello!

I think That's due to the codec in the RFRasterSource companion object; which implementation lives here: https://github.com/locationtech/rasterframes/blob/develop/core/src/main/scala/org/locationtech/rasterframes/encoders/StandardEncoders.scala#L87

I would assume that's due to the frameless dependency on shapeless.

Unfortunately at this point the sbt assembly should be properly built and shaded to avoid shapeless / frameless deps issues.

That's a good question when DB plans to upgrate their environment to depend on the more up to date lib versions.

[nohanaga]

@pomadchin Thanks for the response. Is this problem due to the version of the library on the Databricks side? Should I look into the shapeless library?

[pomadchin]

I think more into the way rasterframes is loaded; I feel like there can be an issue with how RF jar is built / used within the cluster.

Could you trigger somehow a more precise error i.e. by calling https://github.com/locationtech/rasterframes/blob/develop/core/src/main/scala/org/locationtech/rasterframes/encoders/StandardEncoders.scala#L87 explicitly from the SBT shell?

I kinda had a feeling that everything that needs to be shaded is shaded 🤔 https://github.com/locationtech/rasterframes/blob/cc0264438a4a42d4424343401e7001906c2ce6e6/project/RFAssemblyPlugin.scala#L51-L66