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https://issues.apache.org/jira/browse/RATIS-960?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17120063#comment-17120063
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Tsz-wo Sze commented on RATIS-960:
----------------------------------
{code:java}
/**
* Create asynchronously a {@link WritableByteChannel} to stream state
machine data for the given data ID.
*
* @return a future of the stream channel.
*/
default CompletableFuture<WritableByteChannel> stream(DataId dataId) {
return CompletableFuture.completedFuture(null);
}
/**
* Remove asynchronously the state machine data for the given data ID.
*
* @return a future for the remove task.
*/
default CompletableFuture<?> remove(DataId dataId) {
return CompletableFuture.completedFuture(null);
}
{code}
We propose adding the above stream(..) and remove(..) methods to the DataApi,
which will be added by RATIS-959.
> Support streaming state machine data
> ------------------------------------
>
> Key: RATIS-960
> URL: https://issues.apache.org/jira/browse/RATIS-960
> Project: Ratis
> Issue Type: New Feature
> Reporter: Tsz-wo Sze
> Assignee: Tsz-wo Sze
> Priority: Major
>
> {code}
> //StateMachine
> CompletableFuture<?> writeStateMachineData(LogEntryProto entry)
> {code}
> In StateMachine, we have writeStateMachineData to write the state machine
> data in the given log entry. It is inefficient to process state machine data
> in a log entry when the data size is large.
> In this JIRA, we add new APIs to support streaming state machine data.
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