public static void main(String args[]) throws IOException { Options options = Options.parseArgs(args); try { // load keyspace descriptions. DatabaseDescriptor.loadSchemas(false); if (Schema.instance.getCFMetaData(options.keyspace, options.cf) == null) throw new IllegalArgumentException( String.format("Unknown keyspace/columnFamily %s.%s", options.keyspace, options.cf)); Keyspace keyspace = Keyspace.openWithoutSSTables(options.keyspace); ColumnFamilyStore cfs = keyspace.getColumnFamilyStore(options.cf); OutputHandler handler = new OutputHandler.SystemOutput(false, options.debug); Directories.SSTableLister lister = cfs.directories.sstableLister(); if (options.snapshot != null) lister.onlyBackups(true).snapshots(options.snapshot); else lister.includeBackups(false); Collection<SSTableReader> readers = new ArrayList<SSTableReader>(); // Upgrade sstables for (Map.Entry<Descriptor, Set<Component>> entry : lister.list().entrySet()) { Set<Component> components = entry.getValue(); if (!components.contains(Component.DATA) || !components.contains(Component.PRIMARY_INDEX)) continue; try { SSTableReader sstable = SSTableReader.openNoValidation(entry.getKey(), components, cfs.metadata); if (sstable.descriptor.version.equals(Descriptor.Version.CURRENT)) continue; readers.add(sstable); } catch (Exception e) { JVMStabilityInspector.inspectThrowable(e); System.err.println(String.format("Error Loading %s: %s", entry.getKey(), e.getMessage())); if (options.debug) e.printStackTrace(System.err); continue; } } int numSSTables = readers.size(); handler.output("Found " + numSSTables + " sstables that need upgrading."); for (SSTableReader sstable : readers) { try { Upgrader upgrader = new Upgrader(cfs, sstable, handler); upgrader.upgrade(); if (!options.keepSource) { // Remove the sstable (it's been copied by upgrade) System.out.format("Deleting table %s.%n", sstable.descriptor.baseFilename()); sstable.markObsolete(); sstable.selfRef().release(); } } catch (Exception e) { System.err.println(String.format("Error upgrading %s: %s", sstable, e.getMessage())); if (options.debug) e.printStackTrace(System.err); } } CompactionManager.instance.finishCompactionsAndShutdown(5, TimeUnit.MINUTES); SSTableDeletingTask.waitForDeletions(); System.exit(0); } catch (Exception e) { System.err.println(e.getMessage()); if (options.debug) e.printStackTrace(System.err); System.exit(1); } }