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https://issues.apache.org/jira/browse/CASSANDRA-18563?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aleksey Yeschenko updated CASSANDRA-18563:
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Status: Ready to Commit (was: Review In Progress)
> Convert AccordStateCache cache from write-through to write-back
> ---------------------------------------------------------------
>
> Key: CASSANDRA-18563
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18563
> Project: Cassandra
> Issue Type: Improvement
> Components: Accord
> Reporter: Aleksey Yeschenko
> Assignee: Aleksey Yeschenko
> Priority: Normal
> Fix For: 5.0
>
>
> Pre-requisite work for soon to go up PRs that continue shifting the bulk of
> persistence from system tables to {{AccordJournal}}. The switch to write-back
> caching should allow to bypass writes to the system tables entirely for some
> of the transactions.
> Additionally fixes some bugs in the cache, e.g. {{AsyncLoader}} failing to
> load an object could cause entries to be forever stuck in {{PENDING}} state
> because it would never reach the code path that submits the load runnables to
> the executor (that is now the job of the cache). Also switched the list
> implementation from a hand-rolled ad-hoc one to the pre-existing
> {{IntrusiveLinkedList}}, plus various simplifications and cleanup.
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