You have captured change data from your sources and stored the changes in multiple topics in a MapR stream. You want to write the data to HDFS. You can subscribe to all topics that match the specified pattern to get dynamically assigned partitions. Specify a regular expression to subscribe to all topics that match the pattern. For example, if the topics names are

cdc_table1

,

cdc_table2

, and

cdc_table3

, you can specify the regular expression

cdc_.*

to subscribe to all topics.