Hi,
one advice I can give you is to checkout the code and execute some of
the examples in debugging mode. Esp. within Flink's functions e.g.
MapFunction or ProcessFunction you can set a breakpoint and look at the
stack trace. This gives you a good overview about the Flink stack in
general.
Otherwise, learning by doing also helps. We have a special label
`starter` in Flink's issue tracker JIRA to find easy contributions.
Regards,
Timo
On 24.11.20 16:49, Till Rohrmann wrote: