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https://issues.apache.org/jira/browse/QUARKS-192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15312951#comment-15312951
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Jerome Chailloux commented on QUARKS-192:
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I can start with but
It will maintain the X tuples in memory. Is there any way to have X correlated
the ability to send ?
What about the memory I have ? What if I go into low memory ? Any passivation ?
If we think about a PI that have memory and "disk" to store.
The main question is What about a passivation system that can deal with memory
and disk ?
I worked on connected car and this capacity is really a need (being able to
store multiple hours , days of data) when no network is available
(network,roaming, law ,....)
> event resiliency
> ----------------
>
> Key: QUARKS-192
> URL: https://issues.apache.org/jira/browse/QUARKS-192
> Project: Quarks
> Issue Type: Improvement
> Reporter: Jerome Chailloux
>
> Assuming that I have a Raspberry Pi that ingest data and doing some aggregate.
> I have to send information to Watson IoT.
> What if if I lost the network ?
> Could we have a mechanism that send data at all time and if network is not
> available store all events in a file ?
> As soon as the network is available again play back the file and send new
> events.
> We have to be sure that all events are sent in the correct order from file to
> "real time".
> The computation engine (IBM Streams in this case) will then apply some
> policies to deal with or not with out of order events for the real time
> computation but at least able to store data received from sensors.
> Any idea about how to achieve this ?
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