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Paulo Motta commented on CASSANDRA-10130:
-----------------------------------------
Thanks for the update! The notification comments look great! See follow-up
below:
* It's not clear that users of {{buildIndexesBlocking}} should mark the indexes
as building beforehand, so we should make that explicit via an assertion and
probably also add a comment - or perhaps provide a default version where it
marks indexes as building beforehand, since the only case we will not want to
do that is when receiving an {{SSTableAddedNotification}}, since we have
already marked them as building when receiving an
{{SSTableBeforeAddedNotification}}.
* Even though we have unit tests testing the tracker notifications and marking
indexes as build, we don't have a SecondaryIndexManager unit test that checks
that it's correctly marking the index as building when receiving an
{{SSTableBeforeAddedNotification}} and marked as built after a successful
{{SSTableAddedNotification}}. Could you add that please?
* There's still a slight chance that an index is created between an
{{SSTableBeforeAddedNotification}} and {{SSTableAddedNotification}} and we
won't have marked it as building, so we should probably save the indexes we
have marked as building when receiving the {{SSTableBeforeAddedNotification}}
and mark any new index as building after receiving an
{{SSTableBeforeAddedNotification}} but before building all indexes, and maybe
extend the previous unit test to test this unlikely scenario.
* Is there any particular reason why you moved the
[order|https://github.com/apache/cassandra/compare/trunk...adelapena:10130-trunk-memtable#diff-a1dda2df07c96dc42ddb58766362703fL357]
of {{updateSizeTracking}} on {{Tracker.addSSTables}}?
After those are addressed I think this should be mostly done unless
[~sbtourist] has further comments. Thanks!
> Node failure during 2i update after streaming can have incomplete 2i when
> restarted
> -----------------------------------------------------------------------------------
>
> Key: CASSANDRA-10130
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10130
> Project: Cassandra
> Issue Type: Bug
> Components: Coordination
> Reporter: Yuki Morishita
> Assignee: Andrés de la Peña
> Priority: Minor
>
> Since MV/2i update happens after SSTables are received, node failure during
> MV/2i update can leave received SSTables live when restarted while MV/2i are
> partially up to date.
> We can add some kind of tracking mechanism to automatically rebuild at the
> startup, or at least warn user when the node restarts.
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