SQL-MapReduce Utility Function | Description |
---|---|
load_into_imdc | Creates an IMDC and loads it with data. Reports the number of rows loaded into each partition. |
imdc_adapter | Outputs data from an IMDC. Creates and loads the IMDC if it does not exist. Output can be input to another SQL-MapReduce, using an input iterator, even if the receiving function was not coded to use IMDCs. |
project_from_imdc | Outputs data from an existing IMDC, and (optionally) the IP addresses and partition indexes of the partitions that host the data. |
remove_imdc | Removes an IMDC. |
get_imdc_meta_info | Returns IMDC metadata. |
list_imdc | Returns a list of IMDCs, by name, in every partition. |
gc_jvm | Prompts the JVMs on each node to start garbage collection. |
available_memory_on_jvm | Returns the memory statistics of the JVM on each node. |
You can perform some of the same IMDC operations with the IMDC Operations API.