[ https://issues.apache.org/jira/browse/CASSANDRA-13643?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Blake Eggleston updated CASSANDRA-13643: ---------------------------------------- Status: Patch Available (was: Open) Patch here: https://github.com/bdeggleston/cassandra/tree/13643 Could you take a look at this [~slebresne]? I've just called purge on the created tombstone, which I wouldn't think would cause any problems. > converting expired ttl cells to tombstones causing unnecessary digest > mismatches > -------------------------------------------------------------------------------- > > Key: CASSANDRA-13643 > URL: https://issues.apache.org/jira/browse/CASSANDRA-13643 > Project: Cassandra > Issue Type: Bug > Reporter: Blake Eggleston > Assignee: Blake Eggleston > Priority: Minor > > In > [{{AbstractCell#purge}}|https://github.com/apache/cassandra/blob/26e025804c6777a0d124dbc257747cba85b18f37/src/java/org/apache/cassandra/db/rows/AbstractCell.java#L77] > , we convert expired ttl'd cells to tombstones, and set the the local > deletion time to the cell's expiration time, less the ttl time. Depending on > the timing of the purge, this can cause purge to generate tombstones that are > otherwise purgeable. If compaction for a row with ttls isn't at the same > state between replicas, this will then cause digest mismatches between > logically identical rows, leading to unnecessary repair streaming and read > repairs. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org