Hi Gyula,
thank you.
Best Regards,
Hilmi
Am 17.06.2015 um 09:44 schrieb Gyula Fóra:
Hey Hilmi,
Flink currently supports user defined state through the Checkpointed
interface. Using this interface the user can define what state should
the system be aware of when doing snapshots for fault tolerance. The
state returned in the snapshotState method will be checkpointed (and
restored upon failure).
Currently there is no explicit update function so the user need to
implement his state updates as part of the operator logic (inside the
map function for instance). After the 0.9.0 we will change the state
interfaces to have explicit update functions, you can preview some of
the functionality in the PR Matthias referenced, or here is a document
for a more detailed discussion of this feature:
https://docs.google.com/document/d/1nTn4Tpafsnt-TCT6L1vlHtGGgRevU90yRsUQEmkRMjk/edit?usp=sharing
Cheers,
Gyula
Hilmi Yildirim <hilmi.yildi...@neofonie.de
<mailto:hilmi.yildi...@neofonie.de>> ezt írta (időpont: 2015. jún.
17., Sze, 9:36):
Hi,
does Flink Streaming support state management? For example, I have a
state which will be used inside the streaming operations but the state
can be updated.
For example:
stream.map( use state for operation).updateState(update state).
Best Regards,
Hilmi
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Hilmi Yildirim
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