In order to ensure the reliability of snapshot storage of streaming applications, where are the snapshots mainly stored?
F1ink in( )interface for streaming data processing,( )interface for batch processing?
What is the module used to manage the active and standby status of the Loader Server process in Loader?
Which of the following programming languages is Spark implemented in?
AC
B.C++
C. JAVA
D. Scala
F1ume is used to collect data, and the basic unit of data transmitted by the device is
A user information table meg is saved in HBaser of Fusioninsight HD_table, Rowkey is the user id, one of which is the name of the user, now write three KeyValues to this column in sequence:001:Li, 001:Mary001:Lily, may I ask scanmeg_table', (VERSION=>2) which pieces of data will be returned?