@Test
public void testEchoedRow() {
// This test check that EchoedRow doesn't skipp rows: see CASSANDRA-2653
Keyspace keyspace = Keyspace.open(KEYSPACE1);
ColumnFamilyStore cfs = keyspace.getColumnFamilyStore("Standard2");
// disable compaction while flushing
cfs.disableAutoCompaction();
// Insert 4 keys in two sstables. We need the sstables to have 2 rows
// at least to trigger what was causing CASSANDRA-2653
for (int i = 1; i < 5; i++) {
DecoratedKey key = Util.dk(String.valueOf(i));
Mutation rm = new Mutation(KEYSPACE1, key.getKey());
rm.add("Standard2", Util.cellname(String.valueOf(i)), ByteBufferUtil.EMPTY_BYTE_BUFFER, i);
rm.applyUnsafe();
if (i % 2 == 0) cfs.forceBlockingFlush();
}
Collection<SSTableReader> toCompact = cfs.getSSTables();
assertEquals(2, toCompact.size());
// Reinserting the same keys. We will compact only the previous sstable, but we need those new
// ones
// to make sure we use EchoedRow, otherwise it won't be used because purge can be done.
for (int i = 1; i < 5; i++) {
DecoratedKey key = Util.dk(String.valueOf(i));
Mutation rm = new Mutation(KEYSPACE1, key.getKey());
rm.add("Standard2", Util.cellname(String.valueOf(i)), ByteBufferUtil.EMPTY_BYTE_BUFFER, i);
rm.applyUnsafe();
}
cfs.forceBlockingFlush();
SSTableReader tmpSSTable = null;
for (SSTableReader sstable : cfs.getSSTables())
if (!toCompact.contains(sstable)) tmpSSTable = sstable;
assertNotNull(tmpSSTable);
// Force compaction on first sstables. Since each row is in only one sstable, we will be using
// EchoedRow.
Util.compact(cfs, toCompact);
assertEquals(2, cfs.getSSTables().size());
// Now, we remove the sstable that was just created to force the use of EchoedRow (so that it
// doesn't hide the problem)
cfs.markObsolete(Collections.singleton(tmpSSTable), OperationType.UNKNOWN);
assertEquals(1, cfs.getSSTables().size());
// Now assert we do have the 4 keys
assertEquals(4, Util.getRangeSlice(cfs).size());
}
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());
}
private static void insertRowWithKey(int key) {
long timestamp = System.currentTimeMillis();
DecoratedKey decoratedKey = Util.dk(String.format("%03d", key));
Mutation rm = new Mutation(KEYSPACE1, decoratedKey.getKey());
rm.add("CF_STANDARD1", Util.cellname("col"), ByteBufferUtil.EMPTY_BYTE_BUFFER, timestamp, 1000);
rm.applyUnsafe();
}
@Test
public void testSuperColumnTombstones() throws ExecutionException, InterruptedException {
Keyspace keyspace = Keyspace.open(KEYSPACE1);
ColumnFamilyStore cfs = keyspace.getColumnFamilyStore("Super1");
cfs.disableAutoCompaction();
DecoratedKey key = Util.dk("tskey");
ByteBuffer scName = ByteBufferUtil.bytes("TestSuperColumn");
// a subcolumn
Mutation rm = new Mutation(KEYSPACE1, key.getKey());
rm.add(
"Super1",
Util.cellname(scName, ByteBufferUtil.bytes(0)),
ByteBufferUtil.EMPTY_BYTE_BUFFER,
FBUtilities.timestampMicros());
rm.applyUnsafe();
cfs.forceBlockingFlush();
// shadow the subcolumn with a supercolumn tombstone
rm = new Mutation(KEYSPACE1, key.getKey());
rm.deleteRange(
"Super1",
SuperColumns.startOf(scName),
SuperColumns.endOf(scName),
FBUtilities.timestampMicros());
rm.applyUnsafe();
cfs.forceBlockingFlush();
CompactionManager.instance.performMaximal(cfs);
assertEquals(1, cfs.getSSTables().size());
// check that the shadowed column is gone
SSTableReader sstable = cfs.getSSTables().iterator().next();
Range keyRange =
new Range<RowPosition>(key, sstable.partitioner.getMinimumToken().maxKeyBound());
SSTableScanner scanner = sstable.getScanner(DataRange.forKeyRange(keyRange));
OnDiskAtomIterator iter = scanner.next();
assertEquals(key, iter.getKey());
assertTrue(iter.next() instanceof RangeTombstone);
assertFalse(iter.hasNext());
}
/**
* Writes out a bunch of mutations for a single column family.
*
* @param mutations A group of Mutations for the same keyspace and column family.
* @return The ColumnFamilyStore that was used.
*/
public static ColumnFamilyStore writeColumnFamily(List<Mutation> mutations) {
IMutation first = mutations.get(0);
String keyspaceName = first.getKeyspaceName();
UUID cfid = first.getColumnFamilyIds().iterator().next();
for (Mutation rm : mutations) rm.applyUnsafe();
ColumnFamilyStore store = Keyspace.open(keyspaceName).getColumnFamilyStore(cfid);
store.forceBlockingFlush();
return store;
}
protected void fillCF(ColumnFamilyStore cfs, int rowsPerSSTable) {
CompactionManager.instance.disableAutoCompaction();
for (int i = 0; i < rowsPerSSTable; i++) {
String key = String.valueOf(i);
// create a row and update the birthdate value, test that the index query fetches the new
// version
Mutation rm;
rm = new Mutation(KEYSPACE1, ByteBufferUtil.bytes(key));
rm.add(cfs.name, Util.cellname(COLUMN), VALUE, System.currentTimeMillis());
rm.applyUnsafe();
}
cfs.forceBlockingFlush();
}
private long populate(String ks, String cf, int startRowKey, int endRowKey, int ttl) {
long timestamp = System.currentTimeMillis();
for (int i = startRowKey; i <= endRowKey; i++) {
DecoratedKey key = Util.dk(Integer.toString(i));
Mutation rm = new Mutation(ks, key.getKey());
for (int j = 0; j < 10; j++)
rm.add(
cf,
Util.cellname(Integer.toString(j)),
ByteBufferUtil.EMPTY_BYTE_BUFFER,
timestamp,
j > 0
? ttl
: 0); // let first column never expire, since deleting all columns does not produce
// sstable
rm.applyUnsafe();
}
return timestamp;
}
@Test
public void testUserDefinedCompaction() throws Exception {
Keyspace keyspace = Keyspace.open(KEYSPACE1);
final String cfname = "Standard3"; // use clean(no sstable) CF
ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(cfname);
// disable compaction while flushing
cfs.disableAutoCompaction();
final int ROWS_PER_SSTABLE = 10;
for (int i = 0; i < ROWS_PER_SSTABLE; i++) {
DecoratedKey key = Util.dk(String.valueOf(i));
Mutation rm = new Mutation(KEYSPACE1, key.getKey());
rm.add(
cfname,
Util.cellname("col"),
ByteBufferUtil.EMPTY_BYTE_BUFFER,
System.currentTimeMillis());
rm.applyUnsafe();
}
cfs.forceBlockingFlush();
Collection<SSTableReader> sstables = cfs.getSSTables();
assertEquals(1, sstables.size());
SSTableReader sstable = sstables.iterator().next();
int prevGeneration = sstable.descriptor.generation;
String file = new File(sstable.descriptor.filenameFor(Component.DATA)).getAbsolutePath();
// submit user defined compaction on flushed sstable
CompactionManager.instance.forceUserDefinedCompaction(file);
// wait until user defined compaction finishes
do {
Thread.sleep(100);
} while (CompactionManager.instance.getPendingTasks() > 0
|| CompactionManager.instance.getActiveCompactions() > 0);
// CF should have only one sstable with generation number advanced
sstables = cfs.getSSTables();
assertEquals(1, sstables.size());
assertEquals(prevGeneration + 1, sstables.iterator().next().descriptor.generation);
}
@Test
public void testRowCacheRange() {
CompactionManager.instance.disableAutoCompaction();
Keyspace keyspace = Keyspace.open(KEYSPACE_CACHED);
String cf = "CachedIntCF";
ColumnFamilyStore cachedStore = keyspace.getColumnFamilyStore(cf);
long startRowCacheHits = cachedStore.metric.rowCacheHit.getCount();
long startRowCacheOutOfRange = cachedStore.metric.rowCacheHitOutOfRange.getCount();
// empty the row cache
CacheService.instance.invalidateRowCache();
// set global row cache size to 1 MB
CacheService.instance.setRowCacheCapacityInMB(1);
ByteBuffer key = ByteBufferUtil.bytes("rowcachekey");
DecoratedKey dk = cachedStore.partitioner.decorateKey(key);
RowCacheKey rck = new RowCacheKey(cachedStore.metadata.ksAndCFName, dk);
Mutation mutation = new Mutation(KEYSPACE_CACHED, key);
for (int i = 0; i < 200; i++)
mutation.add(
cf, Util.cellname(i), ByteBufferUtil.bytes("val" + i), System.currentTimeMillis());
mutation.applyUnsafe();
// populate row cache, we should not get a row cache hit;
cachedStore.getColumnFamily(
QueryFilter.getSliceFilter(
dk, cf, Composites.EMPTY, Composites.EMPTY, false, 10, System.currentTimeMillis()));
assertEquals(startRowCacheHits, cachedStore.metric.rowCacheHit.getCount());
// do another query, limit is 20, which is < 100 that we cache, we should get a hit and it
// should be in range
cachedStore.getColumnFamily(
QueryFilter.getSliceFilter(
dk, cf, Composites.EMPTY, Composites.EMPTY, false, 20, System.currentTimeMillis()));
assertEquals(++startRowCacheHits, cachedStore.metric.rowCacheHit.getCount());
assertEquals(startRowCacheOutOfRange, cachedStore.metric.rowCacheHitOutOfRange.getCount());
// get a slice from 95 to 105, 95->99 are in cache, we should not get a hit and then row cache
// is out of range
cachedStore.getColumnFamily(
QueryFilter.getSliceFilter(
dk,
cf,
CellNames.simpleDense(ByteBufferUtil.bytes(95)),
CellNames.simpleDense(ByteBufferUtil.bytes(105)),
false,
10,
System.currentTimeMillis()));
assertEquals(startRowCacheHits, cachedStore.metric.rowCacheHit.getCount());
assertEquals(++startRowCacheOutOfRange, cachedStore.metric.rowCacheHitOutOfRange.getCount());
// get a slice with limit > 100, we should get a hit out of range.
cachedStore.getColumnFamily(
QueryFilter.getSliceFilter(
dk, cf, Composites.EMPTY, Composites.EMPTY, false, 101, System.currentTimeMillis()));
assertEquals(startRowCacheHits, cachedStore.metric.rowCacheHit.getCount());
assertEquals(++startRowCacheOutOfRange, cachedStore.metric.rowCacheHitOutOfRange.getCount());
CacheService.instance.invalidateRowCache();
// try to populate row cache with a limit > rows to cache, we should still populate row cache;
cachedStore.getColumnFamily(
QueryFilter.getSliceFilter(
dk, cf, Composites.EMPTY, Composites.EMPTY, false, 105, System.currentTimeMillis()));
assertEquals(startRowCacheHits, cachedStore.metric.rowCacheHit.getCount());
// validate the stuff in cache;
ColumnFamily cachedCf = (ColumnFamily) CacheService.instance.rowCache.get(rck);
assertEquals(cachedCf.getColumnCount(), 100);
int i = 0;
for (Cell c : cachedCf) {
assertEquals(c.name(), Util.cellname(i++));
}
}
