Michael Burman created CASSANDRA-14356:
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Summary: LWTs keep failing in trunk after immutable refactor
Key: CASSANDRA-14356
URL: https://issues.apache.org/jira/browse/CASSANDRA-14356
Project: Cassandra
Issue Type: Bug
Components: Core
Environment: OpenJDK Runtime Environment (build 1.8.0_161-b14),
Cassandra 4.0 commit c22ee2bd451d030e99cfb65be839bbc735a5352f (29.3.2018 14:01)
Reporter: Michael Burman
In the PaxosState, the original assert check is in the form of:
assert promised.update.metadata() == accepted.update.metadata() &&
accepted.update.metadata() == mostRecentCommit.update.metadata();
However, after the change to make TableMetadata immutable this no longer works
as these instances are not necessarily the same (or never). This causes the
LWTs to fail although they're still correctly targetting the same table.
>From IRC:
<pcmanus> It's a bug alright. Though really, the assertion should be on the
metadata ids, cause TableMetadata#equals does more than what we want.
<pcmanus> That is, replacing by .equals() is not ok. That would reject throw on
any change to a table metadata, while the spirit of the assumption was to
sanity check both update were on the same table.
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