oikonomiyaki questions

• Run immediately then every 4 hours in cron
• Filtering Jackson's JsonNode element based on attribute values
• Finding center of set of coordinates using Java
• On Spark's rdd.map(_.swap)
• Write CSV files to HDFS using Flume
• Using local file system as Flume source
• SSLError using boto
• MongoDB Indexing and Projection
• Convert local Vectors to RDD[Vector]
• Oozie shell action: exec and file tags

oikonomiyaki answers