Flink configuration parameters to explain

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# jobManager 的IP地址
jobmanager.rpc.address: hadoop102

# JobManager 的端口号
jobmanager.rpc.port: 6123

# JobManager JVM堆大小
jobmanager.heap.size: 1024m

# taskmanager JVM堆大小
taskmanager.heap.size: 1024m

# 每个 TaskManager 提供的任务 slots 数量
taskmanager.numberOfTaskSlots: 2

# 程序默认并行计算的个数，最大并行计算个数为所有的taskmanager上面的slots总和
parallelism.default: 1

#web端口号
rest.port: 8081