[ https://issues.apache.org/jira/browse/CASSANDRA-16883?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Caleb Rackliffe updated CASSANDRA-16883: ---------------------------------------- Since Version: 3.0.0 Source Control Link: https://github.com/apache/cassandra/commit/f9d41ff83655ead37ac6083d7ee43f2c35a346da Resolution: Fixed Status: Resolved (was: Ready to Commit) Committed as https://github.com/apache/cassandra/commit/f9d41ff83655ead37ac6083d7ee43f2c35a346da to {{cassandra-3.0}}. > Weak visibility guarantees of Accumulator can lead to failure to recognize > digest mismatches > -------------------------------------------------------------------------------------------- > > Key: CASSANDRA-16883 > URL: https://issues.apache.org/jira/browse/CASSANDRA-16883 > Project: Cassandra > Issue Type: Bug > Components: Consistency/Coordination > Reporter: Caleb Rackliffe > Assignee: Caleb Rackliffe > Priority: Normal > Fix For: 3.0.26, 3.11.12 > > Time Spent: 50m > Remaining Estimate: 0h > > The context for this problem is largely the same as CASSANDRA-16807. The > difference is that for 4.0+, CASSANDRA-16097 added an assertion to > {{DigestResolver#responseMatch()}} that ensures the responses snapshot has at > least one visible element (although of course only one element trivially > cannot generate a mismatch and short-circuits immediately). In 3.0 and 3.11, > this assertion does not exist, and when the underlying problem occurs (i.e. > zero responses are visible on {{Accumulator}} when there should be 2), we can > silently avoid the digest matching entirely. This seems like it would make it > both impossible to do a potentially necessary full data read to resolve the > correct response and prevent repair. > The fix here should be similar to the one in CASSANDRA-16807, although there > might be some test infrastructure that needs porting in order to make that > work. -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org