private static SSTableReader sstable(
File dataFolder, ColumnFamilyStore cfs, int generation, int size) throws IOException {
Descriptor descriptor =
new Descriptor(dataFolder, cfs.keyspace.getName(), cfs.getTableName(), generation);
Set<Component> components =
ImmutableSet.of(Component.DATA, Component.PRIMARY_INDEX, Component.FILTER, Component.TOC);
for (Component component : components) {
File file = new File(descriptor.filenameFor(component));
if (!file.exists()) assertTrue(file.createNewFile());
try (RandomAccessFile raf = new RandomAccessFile(file, "rw")) {
raf.setLength(size);
}
}
SegmentedFile dFile =
new BufferedSegmentedFile(
new ChannelProxy(new File(descriptor.filenameFor(Component.DATA))),
RandomAccessReader.DEFAULT_BUFFER_SIZE,
0);
SegmentedFile iFile =
new BufferedSegmentedFile(
new ChannelProxy(new File(descriptor.filenameFor(Component.PRIMARY_INDEX))),
RandomAccessReader.DEFAULT_BUFFER_SIZE,
0);
SerializationHeader header = SerializationHeader.make(cfs.metadata, Collections.emptyList());
StatsMetadata metadata =
(StatsMetadata)
new MetadataCollector(cfs.metadata.comparator)
.finalizeMetadata(
cfs.metadata.partitioner.getClass().getCanonicalName(), 0.01f, -1, header)
.get(MetadataType.STATS);
SSTableReader reader =
SSTableReader.internalOpen(
descriptor,
components,
cfs.metadata,
dFile,
iFile,
MockSchema.indexSummary.sharedCopy(),
new AlwaysPresentFilter(),
1L,
metadata,
SSTableReader.OpenReason.NORMAL,
header);
reader.first = reader.last = MockSchema.readerBounds(generation);
return reader;
}
public static void main(String args[]) throws IOException {
Options options = Options.parseArgs(args);
try {
// load keyspace descriptions.
DatabaseDescriptor.loadSchemas();
String ksName = null;
String cfName = null;
Map<Descriptor, Set<Component>> parsedFilenames = new HashMap<Descriptor, Set<Component>>();
for (String filename : options.filenames) {
File file = new File(filename);
if (!file.exists()) {
System.out.println("Skipping inexisting file " + file);
continue;
}
Pair<Descriptor, Component> pair =
SSTable.tryComponentFromFilename(file.getParentFile(), file.getName());
if (pair == null) {
System.out.println("Skipping non sstable file " + file);
continue;
}
Descriptor desc = pair.left;
if (ksName == null) ksName = desc.ksname;
else if (!ksName.equals(desc.ksname))
throw new IllegalArgumentException("All sstables must be part of the same keyspace");
if (cfName == null) cfName = desc.cfname;
else if (!cfName.equals(desc.cfname))
throw new IllegalArgumentException("All sstables must be part of the same column family");
Set<Component> components =
new HashSet<Component>(
Arrays.asList(
new Component[] {
Component.DATA,
Component.PRIMARY_INDEX,
Component.FILTER,
Component.COMPRESSION_INFO,
Component.STATS
}));
Iterator<Component> iter = components.iterator();
while (iter.hasNext()) {
Component component = iter.next();
if (!(new File(desc.filenameFor(component)).exists())) iter.remove();
}
parsedFilenames.put(desc, components);
}
if (ksName == null || cfName == null) {
System.err.println("No valid sstables to split");
System.exit(1);
}
// Do not load sstables since they might be broken
Table table = Table.openWithoutSSTables(ksName);
ColumnFamilyStore cfs = table.getColumnFamilyStore(cfName);
String snapshotName = "pre-split-" + System.currentTimeMillis();
List<SSTableReader> sstables = new ArrayList<SSTableReader>();
for (Map.Entry<Descriptor, Set<Component>> fn : parsedFilenames.entrySet()) {
try {
SSTableReader sstable =
SSTableReader.openNoValidation(fn.getKey(), fn.getValue(), cfs.metadata);
sstables.add(sstable);
if (options.snapshot) {
File snapshotDirectory =
Directories.getSnapshotDirectory(sstable.descriptor, snapshotName);
sstable.createLinks(snapshotDirectory.getPath());
}
} catch (Exception e) {
System.err.println(String.format("Error Loading %s: %s", fn.getKey(), e.getMessage()));
if (options.debug) e.printStackTrace(System.err);
}
}
if (options.snapshot)
System.out.println(
String.format("Pre-split sstables snapshotted into snapshot %s", snapshotName));
cfs.getDataTracker().markCompacting(sstables);
for (SSTableReader sstable : sstables) {
try {
new SSTableSplitter(cfs, sstable, options.sizeInMB).split();
// Remove the sstable
sstable.markCompacted();
sstable.releaseReference();
} catch (Exception e) {
System.err.println(String.format("Error splitting %s: %s", sstable, e.getMessage()));
if (options.debug) e.printStackTrace(System.err);
}
}
SSTableDeletingTask.waitForDeletions();
System.exit(0); // We need that to stop non daemonized threads
} catch (Exception e) {
System.err.println(e.getMessage());
if (options.debug) e.printStackTrace(System.err);
System.exit(1);
}
}