[
https://issues.apache.org/jira/browse/CASSANDRA-18057?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Benedict Elliott Smith updated CASSANDRA-18057:
-----------------------------------------------
Resolution: Fixed
Status: Resolved (was: Triage Needed)
> CEP-15: (Accord) Invalidation fixes/improvements
> ------------------------------------------------
>
> Key: CASSANDRA-18057
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18057
> Project: Cassandra
> Issue Type: Improvement
> Reporter: Benedict Elliott Smith
> Priority: Normal
>
> This patch builds upon the tracker refactor to allow Invalidations to
> properly track fast path rejections across all contacted shards, and thereby
> decide whether an invalidation is permissible or recovery should be
> attempted. This avoids callers being expected to provide unsafe cues around
> when invalidation may be permissible, and introduces a new mechanism for
> avoiding infinite invalidate/recovery loops by initiating invalidation on
> every shard we know of, but proposing the invalidation as soon as we have
> enough information to safely invalidate any one shard.
> This patch also resolves an issue introduced by partial replication, where a
> transaction adopting a later {{executeAt}} may fail to be properly committed
> to all shards by the original coordinator, and a transaction that adopted a
> false dependency on its execution cannot progress because it cannot obtain a
> full set of dependencies. Since the first transaction now executes after the
> second, its coordinator does not attempt to ensure progress. This is resolved
> by introducing a new {{PreCommitted}} status that replicates only the
> {{executeAt}} without the {{partialDeps}}, so that any shard's (including,
> most importantly, the home shard's) is sufficient to ensure the progress of
> any false dependencies.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org
For additional commands, e-mail: commits-h...@cassandra.apache.org
