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https://issues.apache.org/jira/browse/CASSANDRA-18710?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17786443#comment-17786443
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Jacek Lewandowski commented on CASSANDRA-18710:
-----------------------------------------------
This small test shows that small flushes during schema changes are not caused
by CASSANDRA-17071:
{code:java}
@Test
public void test() {
SchemaLoader.prepareServer();
QueryProcessor.executeInternal("CREATE KEYSPACE ks WITH replication =
{'class': 'SimpleStrategy', 'replication_factor': 1};");
QueryProcessor.executeInternal("CREATE TABLE ks.tab1 (key int PRIMARY
KEY, value int);");
QueryProcessor.executeInternal("INSERT INTO ks.tab1 (key, value) VALUES
(1, 1);");
QueryProcessor.executeInternal("CREATE TABLE ks.tab2 (key int PRIMARY
KEY, value int);");
QueryProcessor.executeInternal("INSERT INTO ks.tab2 (key, value) VALUES
(1, 1);");
QueryProcessor.executeInternal("DROP TABLE ks.tab1;");
Set<SSTableReader> sstables = ColumnFamilyStore.getIfExists("ks",
"tab2").getLiveSSTables();
Assertions.assertThat(sstables.size()).isEqualTo(0);
}
{code}
It fails the same way on 4.0 and 4.1 (which means that the tab2 was flushed
when tab1 was dropped)
> Test failure:
> org.apache.cassandra.io.DiskSpaceMetricsTest.testFlushSize-.jdk17 (from
> org.apache.cassandra.io.DiskSpaceMetricsTest-.jdk17)
> ------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-18710
> URL: https://issues.apache.org/jira/browse/CASSANDRA-18710
> Project: Cassandra
> Issue Type: Bug
> Components: Test/unit
> Reporter: Ekaterina Dimitrova
> Assignee: Jacek Lewandowski
> Priority: Normal
> Fix For: 5.0-beta, 5.0.x, 5.x
>
> Attachments: org.apache.cassandra.io.DiskSpaceMetricsTest.txt
>
>
> Seen here:
> [https://ci-cassandra.apache.org/job/Cassandra-trunk/1644/testReport/org.apache.cassandra.io/DiskSpaceMetricsTest/testFlushSize__jdk17/]
> h3.
> {code:java}
> Error Message
> expected:<7200.0> but was:<1367.83970468544>
> Stacktrace
> junit.framework.AssertionFailedError: expected:<7200.0> but
> was:<1367.83970468544> at
> org.apache.cassandra.io.DiskSpaceMetricsTest.testFlushSize(DiskSpaceMetricsTest.java:119)
> at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native
> Method) at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
> at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> {code}
>
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