@Override
public String toString() {
StringBuilder sb = new StringBuilder();
sb.append("{");
int mark = sb.length();
Binding nullNextProtocolSnapshot = nullNextProtocol.get();
if (nullNextProtocolSnapshot != null) {
sb.append("null: ");
ResourceAddress bindAddress = nullNextProtocolSnapshot.bindAddress();
sb.append(bindAddress);
sb.append(", ");
}
for (Binding binding : nextProtocols.values()) {
ResourceAddress bindAddress = binding.bindAddress();
sb.append(bindAddress);
sb.append(", ");
}
if (sb.length() > mark) {
// rewind last ", "
sb.setLength(sb.length() - 2);
}
sb.append('}');
return sb.toString();
}
/** {@inheritDoc} */
@Override
@Validate
public Iterable<V> getAllValues(@NotNull final T key) {
ConcurrentNavigableMap<K, V> m = map.get(key);
if (m != null) return m.values();
return new ArrayList<V>();
}
/** values collection contains all values */
public void testDescendingValues() {
ConcurrentNavigableMap map = dmap5();
Collection s = map.values();
assertEquals(5, s.size());
assertTrue(s.contains("A"));
assertTrue(s.contains("B"));
assertTrue(s.contains("C"));
assertTrue(s.contains("D"));
assertTrue(s.contains("E"));
}
/** Values.toArray contains all values */
public void testDescendingValuesToArray() {
ConcurrentNavigableMap map = dmap5();
Collection v = map.values();
Object[] ar = v.toArray();
ArrayList s = new ArrayList(Arrays.asList(ar));
assertEquals(5, ar.length);
assertTrue(s.contains("A"));
assertTrue(s.contains("B"));
assertTrue(s.contains("C"));
assertTrue(s.contains("D"));
assertTrue(s.contains("E"));
}
/** {@inheritDoc} */
@Override
public Iterable<V> values() {
for (ConcurrentNavigableMap<K, V> m : map.values()) for (V value : m.values()) yield(value);
}
private Collection<SSTableReader> writeSortedContents(File sstableDirectory) {
boolean isBatchLogTable =
cfs.name.equals(SystemKeyspace.BATCHES)
&& cfs.keyspace.getName().equals(SystemKeyspace.NAME);
logger.debug("Writing {}", Memtable.this.toString());
Collection<SSTableReader> ssTables;
try (SSTableTxnWriter writer =
createFlushWriter(
cfs.getSSTablePath(sstableDirectory), columnsCollector.get(), statsCollector.get())) {
boolean trackContention = logger.isTraceEnabled();
int heavilyContendedRowCount = 0;
// (we can't clear out the map as-we-go to free up memory,
// since the memtable is being used for queries in the "pending flush" category)
for (AtomicBTreePartition partition : partitions.values()) {
// Each batchlog partition is a separate entry in the log. And for an entry, we only do 2
// operations: 1) we insert the entry and 2) we delete it. Further, BL data is strictly
// local,
// we don't need to preserve tombstones for repair. So if both operation are in this
// memtable (which will almost always be the case if there is no ongoing failure), we can
// just skip the entry (CASSANDRA-4667).
if (isBatchLogTable && !partition.partitionLevelDeletion().isLive() && partition.hasRows())
continue;
if (trackContention && partition.usePessimisticLocking()) heavilyContendedRowCount++;
if (!partition.isEmpty()) {
try (UnfilteredRowIterator iter = partition.unfilteredIterator()) {
writer.append(iter);
}
}
}
if (writer.getFilePointer() > 0) {
logger.debug(
String.format(
"Completed flushing %s (%s) for commitlog position %s",
writer.getFilename(),
FBUtilities.prettyPrintMemory(writer.getFilePointer()),
commitLogUpperBound));
// sstables should contain non-repaired data.
ssTables = writer.finish(true);
} else {
logger.debug(
"Completed flushing {}; nothing needed to be retained. Commitlog position was {}",
writer.getFilename(),
commitLogUpperBound);
writer.abort();
ssTables = Collections.emptyList();
}
if (heavilyContendedRowCount > 0)
logger.trace(
String.format(
"High update contention in %d/%d partitions of %s ",
heavilyContendedRowCount, partitions.size(), Memtable.this.toString()));
return ssTables;
}
}
