Examples with Layout org.corfudb.runtime.view.Layout used on opensource projects

Example 21 with Layout

use of org.corfudb.runtime.view.Layout in project CorfuDB by CorfuDB.

the class AbstractReplicationProtocolTest method overwriteThrowsException.

/** Check to make sure that overwriting a previously
     * written entry results in an OverwriteException.
     */
@Test
@SuppressWarnings("unchecked")
public void overwriteThrowsException() throws Exception {
    setupNodes();
    //begin tests
    final CorfuRuntime r = getDefaultRuntime();
    final IReplicationProtocol rp = getProtocol();
    final Layout layout = r.getLayoutView().getLayout();
    LogData d1 = getLogData(0, "1".getBytes());
    LogData d2 = getLogData(0, "2".getBytes());
    rp.write(layout, d1);
    assertThatThrownBy(() -> rp.write(layout, d2)).isInstanceOf(OverwriteException.class);
}

Example 22 with Layout

use of org.corfudb.runtime.view.Layout in project CorfuDB by CorfuDB.

the class ChainReplicationProtocolTest method failedWriteIsPropagated.

/** Check to see that a writer correctly
     * completes a failed write from another client.
     */
@Test
public void failedWriteIsPropagated() throws Exception {
    setupNodes();
    //begin tests
    final CorfuRuntime r = getDefaultRuntime();
    final IReplicationProtocol rp = getProtocol();
    final Layout layout = r.getLayoutView().getLayout();
    LogData failedWrite = getLogData(0, "failed".getBytes());
    LogData incompleteWrite = getLogData(0, "incomplete".getBytes());
    // Write the incomplete write to the head of the chain
    r.getRouter(SERVERS.ENDPOINT_0).getClient(LogUnitClient.class).write(incompleteWrite);
    // Attempt to write using the replication protocol.
    // Should result in an overwrite exception
    assertThatThrownBy(() -> rp.write(layout, failedWrite)).isInstanceOf(OverwriteException.class);
    // At this point, a direct read of the tail should
    // reflect the -other- clients value
    ILogData readResult = r.getRouter(SERVERS.ENDPOINT_0).getClient(LogUnitClient.class).read(0).get().getReadSet().get(0L);
    assertThat(readResult.getPayload(r)).isEqualTo("incomplete".getBytes());
}

Example 23 with Layout

use of org.corfudb.runtime.view.Layout in project CorfuDB by CorfuDB.

the class SMRMultiLogunitTest method setRuntime.

@Before
public void setRuntime() {
    addServer(SERVERS.PORT_0);
    addServer(SERVERS.PORT_1);
    addServer(SERVERS.PORT_2);
    Layout layout = new TestLayoutBuilder().setEpoch(1L).addLayoutServer(SERVERS.PORT_0).addLayoutServer(SERVERS.PORT_1).addLayoutServer(SERVERS.PORT_2).addSequencer(SERVERS.PORT_0).buildSegment().buildStripe().addLogUnit(SERVERS.PORT_0).addLogUnit(SERVERS.PORT_1).addLogUnit(SERVERS.PORT_2).addToSegment().addToLayout().build();
    bootstrapAllServers(layout);
    runtime = getRuntime().connect();
}

Example 24 with Layout

use of org.corfudb.runtime.view.Layout in project CorfuDB by CorfuDB.

the class LayoutClientTest method prepareRejectsLowerRanks.

@Test
public void prepareRejectsLowerRanks() throws Exception {
    Layout layout = TestLayoutBuilder.single(SERVERS.PORT_0);
    assertThat(client.bootstrapLayout(layout).get()).isEqualTo(true);
    long epoch = layout.getEpoch();
    assertThat(client.prepare(epoch, RANK_HIGH).get() != null).isEqualTo(true);
    assertThatThrownBy(() -> {
        client.prepare(epoch, RANK_LOW).get();
    }).hasCauseInstanceOf(OutrankedException.class);
    assertThatThrownBy(() -> {
        client.prepare(epoch, 2L).get();
    }).hasCauseInstanceOf(OutrankedException.class);
}

Example 25 with Layout

use of org.corfudb.runtime.view.Layout in project CorfuDB by CorfuDB.

the class LayoutServerTest method checkPhase1AndPhase2MessagesFromMultipleClients.

/**
     * Validates that the layout server accept or rejects incoming phase1 and phase2 messages from multiple
     * clients based on current state {Phease1Rank [rank, clientID], Phase2Rank [rank, clientID] }
     * If LayoutServer has accepted a phase1 message from a client , it can only accept a higher ranked phase1 message
     * from another client.
     * A phase2 message can only be accepted if the last accepted phase1 message is from the same client and has the
     * same rank.
     *
     * @throws Exception
     */
@Test
public void checkPhase1AndPhase2MessagesFromMultipleClients() throws Exception {
    String serviceDir = PARAMETERS.TEST_TEMP_DIR;
    LayoutServer s1 = getDefaultServer(serviceDir);
    Layout layout = TestLayoutBuilder.single(SERVERS.PORT_0);
    bootstrapServer(layout);
    long newEpoch = layout.getEpoch() + 1;
    Layout newLayout = TestLayoutBuilder.single(SERVERS.PORT_0);
    newLayout.setEpoch(newEpoch);
    setEpoch(newEpoch);
    /* validate phase 1 */
    sendPrepare(newEpoch, HIGH_RANK);
    Assertions.assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.LAYOUT_PREPARE_ACK);
    assertThat(s1).isPhase1Rank(new Rank(HIGH_RANK, AbstractServerTest.testClientId));
    // message from a different client with same rank should be rejected or accepted based on
    // whether the uuid is greater of smaller.
    sendPrepare(UUID.nameUUIDFromBytes("OTHER_CLIENT".getBytes()), newEpoch, HIGH_RANK);
    Assertions.assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.LAYOUT_PREPARE_REJECT);
    sendPrepare(UUID.nameUUIDFromBytes("TEST_CLIENT_OTHER".getBytes()), newEpoch, HIGH_RANK);
    Assertions.assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.LAYOUT_PREPARE_REJECT);
    // message from a different client but with a higher rank gets accepted
    sendPrepare(UUID.nameUUIDFromBytes("OTHER_CLIENT".getBytes()), newEpoch, HIGH_RANK + 1);
    Assertions.assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.LAYOUT_PREPARE_ACK);
    assertThat(s1).isPhase1Rank(new Rank(HIGH_RANK + 1, UUID.nameUUIDFromBytes("OTHER_CLIENT".getBytes())));
    // testing behaviour after server restart
    s1.shutdown();
    LayoutServer s2 = getDefaultServer(serviceDir);
    assertThat(s2).isInEpoch(newEpoch);
    assertThat(s2).isPhase1Rank(new Rank(HIGH_RANK + 1, UUID.nameUUIDFromBytes("OTHER_CLIENT".getBytes())));
    //duplicate message to be rejected
    sendPrepare(UUID.nameUUIDFromBytes("OTHER_CLIENT".getBytes()), newEpoch, HIGH_RANK + 1);
    Assertions.assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.LAYOUT_PREPARE_REJECT);
    /* validate phase 2 */
    //phase2 message from a different client than the one whose phase1 was last accepted is rejected
    sendPropose(newEpoch, HIGH_RANK + 1, newLayout);
    Assertions.assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.LAYOUT_PROPOSE_REJECT);
    // phase2 from same client with same rank as in phase1 gets accepted
    sendPropose(UUID.nameUUIDFromBytes("OTHER_CLIENT".getBytes()), newEpoch, HIGH_RANK + 1, newLayout);
    Assertions.assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.ACK);
    assertThat(s2).isInEpoch(newEpoch);
    assertThat(s2).isPhase1Rank(new Rank(HIGH_RANK + 1, UUID.nameUUIDFromBytes("OTHER_CLIENT".getBytes())));
    assertThat(s2).isPhase2Rank(new Rank(HIGH_RANK + 1, UUID.nameUUIDFromBytes("OTHER_CLIENT".getBytes())));
    assertThat(s2).isProposedLayout(newLayout);
    s2.shutdown();
}