Examples with DropColumnFamily org.apache.cassandra.db.migration.DropColumnFamily used on opensource projects

Example 1 with DropColumnFamily

use of org.apache.cassandra.db.migration.DropColumnFamily in project eiger by wlloyd.

the class DefsTest method testMigrations.

@Test
public void testMigrations() throws IOException, ConfigurationException {
    // do a save. make sure it doesn't mess with the defs version.
    UUID prior = Schema.instance.getVersion();
    UUID ver0 = UUIDGen.makeType1UUIDFromHost(FBUtilities.getBroadcastAddress());
    DefsTable.dumpToStorage(ver0);
    assert Schema.instance.getVersion().equals(prior);
    // add a cf.
    CFMetaData newCf1 = addTestCF("Keyspace1", "MigrationCf_1", "Migration CF");
    Migration m1 = new AddColumnFamily(newCf1);
    m1.apply();
    UUID ver1 = m1.getVersion();
    assert Schema.instance.getVersion().equals(ver1);
    // drop it.
    Migration m3 = new DropColumnFamily("Keyspace1", "MigrationCf_1");
    m3.apply();
    UUID ver3 = m3.getVersion();
    assert Schema.instance.getVersion().equals(ver3);
    // now lets load the older migrations to see if that code works.
    Collection<IColumn> serializedMigrations = Migration.getLocalMigrations(ver1, ver3);
    assert serializedMigrations.size() == 2;
    // test deserialization of the migrations.
    Migration[] reconstituded = new Migration[2];
    int i = 0;
    for (IColumn col : serializedMigrations) {
        UUID version = UUIDGen.getUUID(col.name());
        reconstituded[i] = Migration.deserialize(col.value(), MessagingService.version_);
        assert version.equals(reconstituded[i].getVersion());
        i++;
    }
    assert m1.getClass().equals(reconstituded[0].getClass());
    assert m3.getClass().equals(reconstituded[1].getClass());
    // verify that the row mutations are the same. rather than exposing the private fields, serialize and verify.
    assert m1.serialize().equals(reconstituded[0].serialize());
    assert m3.serialize().equals(reconstituded[1].serialize());
}

Example 2 with DropColumnFamily

use of org.apache.cassandra.db.migration.DropColumnFamily in project eiger by wlloyd.

the class DefsTest method dropCf.

@Test
public void dropCf() throws ConfigurationException, IOException, ExecutionException, InterruptedException {
    DecoratedKey dk = Util.dk("dropCf");
    // sanity
    final KSMetaData ks = Schema.instance.getTableDefinition("Keyspace1");
    assert ks != null;
    final CFMetaData cfm = ks.cfMetaData().get("Standard1");
    assert cfm != null;
    // write some data, force a flush, then verify that files exist on disk.
    RowMutation rm = new RowMutation(ks.name, dk.key);
    for (int i = 0; i < 100; i++) rm.add(new QueryPath(cfm.cfName, null, ByteBufferUtil.bytes(("col" + i))), ByteBufferUtil.bytes("anyvalue"), 1L);
    rm.apply();
    ColumnFamilyStore store = Table.open(cfm.ksName).getColumnFamilyStore(cfm.cfName);
    assert store != null;
    store.forceBlockingFlush();
    store.getFlushPath(1024, Descriptor.CURRENT_VERSION);
    assert store.directories.sstableLister().list().size() > 0;
    new DropColumnFamily(ks.name, cfm.cfName).apply();
    assert !Schema.instance.getTableDefinition(ks.name).cfMetaData().containsKey(cfm.cfName);
    // any write should fail.
    rm = new RowMutation(ks.name, dk.key);
    boolean success = true;
    try {
        rm.add(new QueryPath("Standard1", null, ByteBufferUtil.bytes("col0")), ByteBufferUtil.bytes("value0"), 1L);
        rm.apply();
    } catch (Throwable th) {
        success = false;
    }
    assert !success : "This mutation should have failed since the CF no longer exists.";
    // verify that the files are gone.
    for (File file : store.directories.sstableLister().listFiles()) {
        if (file.getPath().endsWith("Data.db") && !new File(file.getPath().replace("Data.db", "Compacted")).exists())
            throw new AssertionError("undeleted file " + file);
    }
}