public long estimatedKeys() {
long n = 0;
for (SSTableReader sstable : this) {
n += sstable.estimatedKeys();
}
return n;
}
public synchronized void replace(
Collection<SSTableReader> oldSSTables, Iterable<SSTableReader> replacements)
throws IOException {
Set<SSTableReader> sstablesNew = new HashSet<SSTableReader>(sstables);
for (SSTableReader sstable : replacements) {
assert sstable.getIndexPositions() != null;
sstablesNew.add(sstable);
long size = sstable.bytesOnDisk();
liveSize.addAndGet(size);
totalSize.addAndGet(size);
StorageService.instance.storageLiveSize.addAndGet(size); // BIGDATA
StorageService.instance.storageTotalSize.addAndGet(size); // BIGDATA
sstable.setTrackedBy(this);
}
for (SSTableReader sstable : oldSSTables) {
boolean removed = sstablesNew.remove(sstable);
// BIGDATA:
// assert removed;
// the old sstables in compacting may already be marked compacted by reset CF.
if (removed) {
sstable.markCompacted();
long bytesOnDisk = sstable.bytesOnDisk(); // BIGDATA
liveSize.addAndGet(-bytesOnDisk); // BIGDATA
StorageService.instance.storageLiveSize.addAndGet(-bytesOnDisk); // BIGDATA
} else {
logger.info(
"The old sstable in compacting may already be marked compacted: "
+ sstable.getFilename());
}
}
sstables = Collections.unmodifiableSet(sstablesNew);
updateCacheSizes();
}