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https://issues.apache.org/jira/browse/CASSANDRA-14315?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Paulo Motta resolved CASSANDRA-14315.
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Resolution: Fixed
Good catch! Patch and tests LGTM. Committed as
{{5b9e985474e696a83d23e7cf4bedaf360cdb1eaf}} to trunk. Thanks!
> ThrottledUnfilteredIterator failed on UnfilteredRowIterator with only
> partition level info
> ------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-14315
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14315
> Project: Cassandra
> Issue Type: Bug
> Components: Materialized Views
> Reporter: ZhaoYang
> Assignee: ZhaoYang
> Priority: Major
> Fix For: 4.0
>
> Attachments: dtest.png, unit test.png
>
>
> When repairing base table with MV, in order to avoid OOM, Cassandra-13299
> added ThrottledUnfilteredIterator to split large partition into small chunks,
> but it didn't handle partition without unfiltered properly.
> {code:title=repro}
> // create cell tombstone, range tombstone, partition deletion
> createTable("CREATE TABLE %s (pk int, ck1 int, ck2 int, v1 int, v2 int,
> PRIMARY KEY (pk, ck1, ck2))");
> // partition deletion
> execute("DELETE FROM %s USING TIMESTAMP 160 WHERE pk=1");
> // flush and generate 1 sstable
> ColumnFamilyStore cfs =
> Keyspace.open(keyspace()).getColumnFamilyStore(currentTable());
> cfs.forceBlockingFlush();
> cfs.disableAutoCompaction();
> cfs.forceMajorCompaction();
> assertEquals(1, cfs.getLiveSSTables().size());
> SSTableReader reader = cfs.getLiveSSTables().iterator().next();
> try (ISSTableScanner scanner = reader.getScanner();
> CloseableIterator<UnfilteredRowIterator> throttled =
> ThrottledUnfilteredIterator.throttle(scanner, 100))
> {
> assertTrue(throttled.hasNext());
> UnfilteredRowIterator iterator = throttled.next();
> assertFalse(throttled.hasNext());
> assertFalse(iterator.hasNext());
> assertEquals(iterator.partitionLevelDeletion().markedForDeleteAt(), 160);
> }
> {code}
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