Package org.apache.cassandra.io.sstable

Examples of org.apache.cassandra.io.sstable.Descriptor$Version

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        rm.add(new QueryPath("Indexed1", null, ByteBufferUtil.bytes("birthdate")), ByteBufferUtil.bytes(1L), 0);
        rm.apply();
        ColumnFamilyStore cfs = Table.open("Keyspace6").getColumnFamilyStore("Indexed1");
        cfs.forceBlockingFlush();
        ColumnFamilyStore indexedCfs = cfs.getIndexedColumnFamilyStore(cfs.getIndexedColumns().iterator().next());
        Descriptor desc = indexedCfs.getSSTables().iterator().next().descriptor;

        // drop the index
        CFMetaData meta = CFMetaData.rename(cfs.metadata, cfs.metadata.cfName); // abusing rename to clone
        ColumnDefinition cdOld = meta.column_metadata.values().iterator().next();
        ColumnDefinition cdNew = new ColumnDefinition(cdOld.name, cdOld.getValidator().getClass().getName(), null, null);
        meta.column_metadata.put(cdOld.name, cdNew);
        UpdateColumnFamily update = new UpdateColumnFamily(CFMetaData.convertToAvro(meta));
        update.apply();

        // check
        assert cfs.getIndexedColumns().isEmpty();
        ColumnFamilyStore.scrubDataDirectories("Keyspace6", "Indexed1");
        assert !new File(desc.filenameFor(Component.DATA)).exists();
    }
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    /** Translates remote files to local files by creating a local sstable per remote sstable. */
    public static PendingFile getContextMapping(PendingFile remote) throws IOException
    {
        /* Create a local sstable for each remote sstable */
        Descriptor remotedesc = remote.desc;

        // new local sstable
        Table table = Table.open(remotedesc.ksname);
        ColumnFamilyStore cfStore = table.getColumnFamilyStore(remotedesc.cfname);
        Descriptor localdesc = Descriptor.fromFilename(cfStore.getFlushPath(remote.size, remote.desc.version));

        return new PendingFile(localdesc, remote);
     }
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        {
            String filename = dis.readUTF();
            if (filename.isEmpty())
                return null;
           
            Descriptor desc = Descriptor.fromFilename(filename);
            String component = dis.readUTF();
            int count = dis.readInt();
            List<Pair<Long,Long>> sections = new ArrayList<Pair<Long,Long>>(count);
            for (int i = 0; i < count; i++)
                sections.add(new Pair<Long,Long>(Long.valueOf(dis.readLong()), Long.valueOf(dis.readLong())));
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    private static List<PendingFile> createPendingFiles(Collection<SSTableReader> sstables, Collection<Range> ranges)
    {
        List<PendingFile> pending = new ArrayList<PendingFile>();
        for (SSTableReader sstable : sstables)
        {
            Descriptor desc = sstable.descriptor;
            List<Pair<Long,Long>> sections = sstable.getPositionsForRanges(ranges);
            if (sections.isEmpty())
                continue;
            pending.add(new PendingFile(sstable, desc, SSTable.COMPONENT_DATA, sections));
        }
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    /** Translates remote files to local files by creating a local sstable per remote sstable. */
    public static PendingFile getContextMapping(PendingFile remote) throws IOException
    {
        /* Create a local sstable for each remote sstable */
        Descriptor remotedesc = remote.desc;
        if (!remotedesc.isStreamCompatible())
            throw new UnsupportedOperationException(String.format("SSTable %s is not compatible with current version %s",
                                                                  remote.getFilename(), Descriptor.CURRENT_VERSION));

        // new local sstable
        Table table = Table.open(remotedesc.ksname);
        ColumnFamilyStore cfStore = table.getColumnFamilyStore(remotedesc.cfname);
        Descriptor localdesc = Descriptor.fromFilename(cfStore.getFlushPath(remote.size, remote.desc.version));

        return new PendingFile(localdesc, remote);
    }
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    private static List<PendingFile> createPendingFiles(Iterable<SSTableReader> sstables, Collection<Range<Token>> ranges, OperationType type)
    {
        List<PendingFile> pending = new ArrayList<PendingFile>();
        for (SSTableReader sstable : sstables)
        {
            Descriptor desc = sstable.descriptor;
            List<Pair<Long,Long>> sections = sstable.getPositionsForRanges(ranges);
            if (sections.isEmpty())
            {
                // A reference was acquired on the sstable and we won't stream it
                sstable.releaseReference();
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        rm.add(new QueryPath("Indexed1", null, ByteBufferUtil.bytes("birthdate")), ByteBufferUtil.bytes(1L), 0);
        rm.apply();
        ColumnFamilyStore cfs = Table.open("Keyspace6").getColumnFamilyStore("Indexed1");
        cfs.forceBlockingFlush();
        ColumnFamilyStore indexedCfs = cfs.indexManager.getIndexForColumn(cfs.indexManager.getIndexedColumns().iterator().next()).getIndexCfs();
        Descriptor desc = indexedCfs.getSSTables().iterator().next().descriptor;

        // drop the index
        CFMetaData meta = CFMetaData.rename(cfs.metadata, cfs.metadata.cfName); // abusing rename to clone
        ColumnDefinition cdOld = meta.getColumn_metadata().values().iterator().next();
        ColumnDefinition cdNew = new ColumnDefinition(cdOld.name, cdOld.getValidator(), null, null, null);
        meta.columnMetadata(Collections.singletonMap(cdOld.name, cdNew));
        UpdateColumnFamily update = new UpdateColumnFamily(meta.toThrift());
        update.apply();

        // check
        assert cfs.indexManager.getIndexedColumns().isEmpty();
        SSTableDeletingTask.waitForDeletions();
        assert !new File(desc.filenameFor(Component.DATA)).exists();
    }
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        in.close();
    }
   
    private static PendingFile makePendingFile(boolean sst, int numSecs, OperationType op)
    {
        Descriptor desc = new Descriptor("z", new File("path/doesn't/matter"), "Keyspace1", "Standard1", 23, false);
        List<Pair<Long, Long>> sections = new ArrayList<Pair<Long, Long>>();
        for (int i = 0; i < numSecs; i++)
            sections.add(new Pair<Long, Long>(new Long(i), new Long(i * i)));
        return new PendingFile(sst ? makeSSTable() : null, desc, SSTable.COMPONENT_DATA, sections, op);
    }
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    {
        ColumnFamilyStore cfs = insertKey1Key2();

        for (int version = 1; version <= 2; ++version)
        {
            Descriptor existing = new Descriptor(cfs.directories.getDirectoryForNewSSTables(1), "Keyspace2", "Standard1", version, false);
            Descriptor desc = new Descriptor(Directories.getBackupsDirectory(existing), "Keyspace2", "Standard1", version, false);
            for (Component c : new Component[]{ Component.DATA, Component.PRIMARY_INDEX, Component.FILTER, Component.STATS })
                assertTrue("can not find backedup file:" + desc.filenameFor(c), new File(desc.filenameFor(c)).exists());
        }
    }
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        Directories directories = Directories.create(table.name, columnFamily);
        Directories.SSTableLister lister = directories.sstableLister().includeBackups(true);
        List<Integer> generations = new ArrayList<Integer>();
        for (Map.Entry<Descriptor, Set<Component>> entry : lister.list().entrySet())
        {
            Descriptor desc = entry.getKey();
            generations.add(desc.generation);
            if (!desc.isCompatible())
                throw new RuntimeException(String.format("Can't open incompatible SSTable! Current version %s, found file: %s", Descriptor.CURRENT_VERSION, desc));
        }
        Collections.sort(generations);
        int value = (generations.size() > 0) ? (generations.get(generations.size() - 1)) : 0;
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