G Quintana questions

G Quintana answers

• Cassandra's lightweight transactions & Paxos consensus algorithm
• Flyway Migration with java
• Set redis key/value with camel-redis
• Spark Combinebykey JAVA lambda expression
• Memtable understanding
• compute string length in Spark SQL DSL
• Apache Spark error : Could not connect to akka.tcp://sparkMaster@
• Kafka-connect sink task ignores file offset storage property
• How does Apache Spark know about HDFS data nodes?
• How to run concurrent jobs(actions) in Apache Spark using single spark context