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https://issues.apache.org/jira/browse/CASSANDRA-13065?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15932912#comment-15932912
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Joshua McKenzie commented on CASSANDRA-13065:
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It looks like we can always just use {{appendToCommitLog}} for CDC-enabled cfs
+ the standard streaming code rather than using the write path the way MV's do.
CDC has no requirement for the data to make it back into a memtable or to go
through the entire write path; what we really need is to ensure that data makes
it to the CL and the segments get flagged as containing CDC-enabled cf's which
this code should do.
> Consistent range movements to not require MV updates to go through write
> paths
> -------------------------------------------------------------------------------
>
> Key: CASSANDRA-13065
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13065
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Benjamin Roth
> Assignee: Benjamin Roth
> Priority: Critical
> Fix For: 4.0
>
>
> Booting or decommisioning nodes with MVs is unbearably slow as all streams go
> through the regular write paths. This causes read-before-writes for every
> mutation and during bootstrap it causes them to be sent to batchlog.
> The makes it virtually impossible to boot a new node in an acceptable amount
> of time.
> Using the regular streaming behaviour for consistent range movements works
> much better in this case and does not break the MV local consistency contract.
> Already tested on own cluster.
> Bootstrap case is super easy to handle, decommission case requires
> CASSANDRA-13064
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