private void testDontPurgeAccidentaly(String k, String cfname) throws InterruptedException { // This test catches the regression of CASSANDRA-2786 Keyspace keyspace = Keyspace.open(KEYSPACE1); ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(cfname); // disable compaction while flushing cfs.clearUnsafe(); cfs.disableAutoCompaction(); // Add test row DecoratedKey key = Util.dk(k); Mutation rm = new Mutation(KEYSPACE1, key.getKey()); rm.add( cfname, Util.cellname(ByteBufferUtil.bytes("sc"), ByteBufferUtil.bytes("c")), ByteBufferUtil.EMPTY_BYTE_BUFFER, 0); rm.applyUnsafe(); cfs.forceBlockingFlush(); Collection<SSTableReader> sstablesBefore = cfs.getSSTables(); QueryFilter filter = QueryFilter.getIdentityFilter(key, cfname, System.currentTimeMillis()); assertTrue(cfs.getColumnFamily(filter).hasColumns()); // Remove key rm = new Mutation(KEYSPACE1, key.getKey()); rm.delete(cfname, 2); rm.applyUnsafe(); ColumnFamily cf = cfs.getColumnFamily(filter); assertTrue("should be empty: " + cf, cf == null || !cf.hasColumns()); // Sleep one second so that the removal is indeed purgeable even with gcgrace == 0 Thread.sleep(1000); cfs.forceBlockingFlush(); Collection<SSTableReader> sstablesAfter = cfs.getSSTables(); Collection<SSTableReader> toCompact = new ArrayList<SSTableReader>(); for (SSTableReader sstable : sstablesAfter) if (!sstablesBefore.contains(sstable)) toCompact.add(sstable); Util.compact(cfs, toCompact); cf = cfs.getColumnFamily(filter); assertTrue("should be empty: " + cf, cf == null || !cf.hasColumns()); }
public boolean isFullyCoveredBy(ColumnFamily cf, long now) { // cf is the beginning of a partition. It covers this filter if: // 1) either this filter requests the head of the partition and request less // than what cf has to offer (note: we do need to use getLiveCount() for that // as it knows if the filter count cells or CQL3 rows). // 2) the start and finish bound of this filter are included in cf. if (isHeadFilter() && count <= getLiveCount(cf, now)) return true; if (start().isEmpty() || finish().isEmpty() || !cf.hasColumns()) return false; Composite low = isReversed() ? finish() : start(); Composite high = isReversed() ? start() : finish(); CellName first = cf.iterator(ColumnSlice.ALL_COLUMNS_ARRAY).next().name(); CellName last = cf.reverseIterator(ColumnSlice.ALL_COLUMNS_ARRAY).next().name(); return cf.getComparator().compare(first, low) <= 0 && cf.getComparator().compare(high, last) <= 0; }