The MetricSeliazer dslink is under development and has not been published yet. My apologies if I mentioned it prematurely on the video. This is an example of how to subscribe to node values and persist them into csv files. An alternative workaround is to build a dataflow logic and write to the host filesystem using the Filesystem DSLink. With the Filesystem dslink you can see the disk directory, read and write to files. The logic would be to build a table, use the csvWrite dataflow function and write to disk the result.
See https://developer.cisco.com/docs/kinetic-connector-catalog/#!filesystem for the dslink.
As for the Cisco Connector Catalog at https://developer.cisco.com/docs/kinetic-connector-catalog, it is the official location for all released Cisco dslinks.
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