bereng commented on code in PR #3917:
URL: https://github.com/apache/cassandra/pull/3917#discussion_r2034776690
##########
test/unit/org/apache/cassandra/cql3/PstmtPersistenceTest.java:
##########
@@ -142,19 +148,103 @@ public void testPstmtInvalidation() throws Throwable
createTable("CREATE TABLE %s (key int primary key, val int)");
+ long initialEvicted = numberOfEvictedStatements();
+
for (int cnt = 1; cnt < 10000; cnt++)
{
prepareStatement("INSERT INTO %s (key, val) VALUES (?, ?) USING
TIMESTAMP " + cnt, clientState);
- if (numberOfEvictedStatements() > 0)
+ if (numberOfEvictedStatements() - initialEvicted > 0)
{
+ assertEquals("Number of statements in table and in cache don't
match", numberOfStatementsInMemory(), numberOfStatementsOnDisk());
+
+ // prepare a more statements to trigger more evictions
+ for (int cnt2 = cnt + 1; cnt2 < cnt + 10; cnt2++)
+ prepareStatement("INSERT INTO %s (key, val) VALUES (?, ?)
USING TIMESTAMP " + cnt2, clientState);
+
+ // each new prepared statement should have caused an eviction
+ assertEquals("eviction count didn't increase by the expected
number", 10, numberOfEvictedStatements() - initialEvicted);
+ assertEquals("Number of statements in memory (expected) and
table (actual) don't match", numberOfStatementsInMemory(),
numberOfStatementsOnDisk());
+
return;
}
}
fail("Prepared statement eviction does not work");
}
+
+
+ @Test
+ public void testAsyncPstmtInvalidation() throws Throwable
Review Comment:
Does this deterministically fail without the fix? Have you explored using
byteman to try to register if the righ code paths are hit instead i.e.?
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