Hi all,
I still get the same error when using spark-cassandra connector in Zeppelin. I put the guava 19.0 jar in the classpath but half time I start spark interpreter I get this error. The jar is in the classpath entries in Spark UI but I suppose it sometimes takes the guava lib within Spark which is 14.0.1:
This is the error I get (half of the time only). If restart the interpreter,it's ok.
java.lang.ExceptionInInitializerError
at com.datastax.spark.connector.cql.DefaultConnectionFactory$.clusterBuilder(CassandraConnectionFactory.scala:35)
at com.datastax.spark.connector.cql.DefaultConnectionFactory$.createCluster(CassandraConnectionFactory.scala:87)
at com.datastax.spark.connector.cql.CassandraConnector$.com$datastax$spark$connector$cql$CassandraConnector$$createSession(CassandraConnector.scala:153)
at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$2.apply(CassandraConnector.scala:148)
at com.datastax.spark.connector.cql.CassandraConnector$$anonfun$2.apply(CassandraConnector.scala:148)
at com.datastax.spark.connector.cql.RefCountedCache.createNewValueAndKeys(RefCountedCache.scala:31)
at com.datastax.spark.connector.cql.RefCountedCache.acquire(RefCountedCache.scala:56)
at com.datastax.spark.connector.cql.CassandraConnector.openSession(CassandraConnector.scala:81)
at com.datastax.spark.connector.rdd.CassandraTableScanRDD.compute(CassandraTableScanRDD.scala:218)
at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:306)
at org.apache.spark.rdd.RDD.iterator(RDD.scala:270)
at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:66)
at org.apache.spark.scheduler.Task.run(Task.scala:89)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:213)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.IllegalStateException: Detected Guava issue #1635 which indicates that a version of Guava less than 16.01 is in use. This introduces codec resolution issues and potentially other incompatibility issues in the driver. Please upgrade to Guava 16.01 or later.
at com.datastax.driver.core.SanityChecks.checkGuava(SanityChecks.java:62)
at com.datastax.driver.core.SanityChecks.check(SanityChecks.java:36)
at com.datastax.driver.core.Cluster.<clinit>(Cluster.java:67)
... 17 more
Is the solution to build a fat jar with SBT assembly which would bring guava 16.0.1 ? If yes I get invalid signatures building master branch...