Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Symptoms

java.lang.IllegalArgumentException: Wrong FS: hdfs://..., expected: viewfs://...

Possible Causes

The Spark cluster has migrated to Router-based Federation (RBF) namenodes, and viewfs:// (instead of hdfs://) is required to access HDFS …

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

Symptom

Exception in thread "main" java.lang.IllegalArgumentException: System memory 466092032 must be at least 471859200. Please increase heap size using the --driver-memory option or spark.driver.memory in Spark configuration …