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https://issues.apache.org/jira/browse/CASSANDRA-14118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16412369#comment-16412369
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Blake Eggleston commented on CASSANDRA-14118:
---------------------------------------------
I've been working on an alternate implementation
[here|https://github.com/bdeggleston/cassandra/tree/14118-v2]. I think it's
probably more in line with what we need here.
The main interfaces are
[KeyspaceWriteHandler|https://github.com/bdeggleston/cassandra/blob/14118-v2/src/java/org/apache/cassandra/db/KeyspaceWriteHandler.java]
and
[TableWriteHandler|https://github.com/bdeggleston/cassandra/blob/14118-v2/src/java/org/apache/cassandra/db/TableWriteHandler.java],
which I still need to write docs for. The interfaces hide most of the existing
implementation, including the operation ordering. I've also done some
preliminary work on indexes since they need to deal with the write interface.
{{Keyspace.writeOrder}} is still exposed in a few places related to creating
and dropping keyspaces/tables/indexes to wait on pending writes. I think those
are probably best left for CASSANDRA-14124 or CASSANDRA-14125
> Refactor write path
> -------------------
>
> Key: CASSANDRA-14118
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14118
> Project: Cassandra
> Issue Type: Sub-task
> Components: Core
> Reporter: Dikang Gu
> Assignee: Dikang Gu
> Priority: Major
>
> As part of the pluggable storage engine effort, we'd like to modularize the
> write path related code, make it to be independent from existing storage
> engine implementation details.
> For now, refer to
> https://docs.google.com/document/d/1suZlvhzgB6NIyBNpM9nxoHxz_Ri7qAm-UEO8v8AIFsc
> for high level designs.
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