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https://issues.apache.org/jira/browse/CASSANDRA-16325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17649444#comment-17649444
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Isaac Reath commented on CASSANDRA-16325:
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Created: [https://github.com/apache/cassandra/pull/2058.]
The approach we've taken is to update the metrics every time
StreamSession::progress by the number of bytes streamed for a file since the
last time progress was called. For testing, we've updated the StreamingMetrics
distributed test to kick off a repair on a separate thread and check that the
streaming metrics are updated before the repair completes.
> Update streaming metrics incrementally
> --------------------------------------
>
> Key: CASSANDRA-16325
> URL: https://issues.apache.org/jira/browse/CASSANDRA-16325
> Project: Cassandra
> Issue Type: Improvement
> Components: Observability/Metrics
> Reporter: Paulo Motta
> Assignee: Isaac Reath
> Priority: Normal
> Labels: lhf
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Currently the inbound and outbound streamed bytes metrics are incremented
> after each file is streamed, what doesn't represent the current number of
> bytes streamed since it can take a long time for a large file to be streamed.
> We should update the metric incrementally as data is streamed.
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