Hi Olga,
At the moment Flink does not have any embedded support for multi region
deployment or failover.
You can try to automate it, for example, using savepoints [1] and backing them
up in multiple data centres.
This way you could restore failed job in other regions from the latest
savepoint.
Of course, job input/output should be also available in multiple data centres.
Flink does not have any embedded encryption mechanism for state.
The state value is just de-serialisable byte array for Flink.
For example, you can implement custom TypeSerializer [2] or wrap existing one
with encryption.
[1]
https://ci.apache.org/projects/flink/flink-docs-master/ops/state/savepoints.html
[2]
https://ci.apache.org/projects/flink/flink-docs-master/dev/stream/state/custom_serialization.html
Best,
Andrey
> On 2 Oct 2018, at 02:57, Olga Luganska wrote:
>
> Hello,
>
> Does Flink support multiple data center implementation and failover
> procedures in case one of the data centers goes down?
>
> Another question I have is about data encryption. If application state which
> needs to be checkpointed contains data elements which are considered to be a
> personally identifiable information, or maybe some credit card information,
> do you provide any encryption mechanisms to make sure that this data will be
> secured?
>
> Thank you very much,
> Olga
