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https://issues.apache.org/jira/browse/CASSANDRA-13257?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15885005#comment-15885005
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Yuki Morishita commented on CASSANDRA-13257:
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Is it possible to add "dry-run" feature to stremaing instead of TreeDifference?
That way, we can use the feature to preview other streaming operations.
For example:
{code}
StreamPlan newPlan = new StreamPlan(dryRun=true);
newPlan.addTransferRanges(range);
StreamResultFuture future = newPlan.execute();
// if dryRun, only run streaming until PREPARE phase so that exactly send and
*receive* size are known, and return calculated StreamState based on those.
StreamState dryRunResult = future.get();
{code}
Or, when streaming is only for out going (like decommission) we may be able to
return without exchanging messages.
WDYT?
> Add repair streaming preview
> ----------------------------
>
> Key: CASSANDRA-13257
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13257
> Project: Cassandra
> Issue Type: New Feature
> Reporter: Blake Eggleston
> Assignee: Blake Eggleston
>
> It would be useful to be able to estimate the amount of repair streaming that
> needs to be done, without actually doing any streaming. Our main motivation
> for this having something this is validating CASSANDRA-9143 in production,
> but I’d imagine it could also be a useful tool in troubleshooting.
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