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

Example 26 with Layout

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

the class LayoutServerTest method commitReturnsAck.

private void commitReturnsAck(LayoutServer s1, Integer reboot, long baseEpoch) {
    long newEpoch = baseEpoch + reboot;
    sendMessage(new CorfuPayloadMsg<>(CorfuMsgType.SET_EPOCH, newEpoch));
    Layout layout = TestLayoutBuilder.single(SERVERS.PORT_0);
    layout.setEpoch(newEpoch);
    sendPrepare(newEpoch, HIGH_RANK);
    Assertions.assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.LAYOUT_PREPARE_ACK);
    sendPropose(newEpoch, HIGH_RANK, layout);
    Assertions.assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.ACK);
    sendCommitted(newEpoch, layout);
    Assertions.assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.ACK);
    sendCommitted(newEpoch, layout);
    Assertions.assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.ACK);
    requestLayout(newEpoch);
    Assertions.assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.LAYOUT_RESPONSE);
    Assertions.assertThat(((LayoutMsg) getLastMessage()).getLayout()).isEqualTo(layout);
}

Example 27 with Layout

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

the class LayoutServerTest method checkPaxosPhasesPersisted.

/**
     * The test verifies that the data in accepted phase1 and phase2 messages
     * is persisted to disk and survives layout server restarts.
     *
     * @throws Exception
     */
@Test
public void checkPaxosPhasesPersisted() 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, 1);
    Assertions.assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.LAYOUT_PREPARE_ACK);
    assertThat(s1).isPhase1Rank(new Rank(1L, AbstractServerTest.testClientId));
    //shutdown this instance of server
    s1.shutdown();
    //bring up a new instance of server with the previously persisted data
    LayoutServer s2 = getDefaultServer(serviceDir);
    assertThat(s2).isInEpoch(newEpoch);
    assertThat(s2).isPhase1Rank(new Rank(1L, AbstractServerTest.testClientId));
    // validate phase2 data persistence
    sendPropose(newEpoch, 1, newLayout);
    Assertions.assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.ACK);
    //shutdown this instance of server
    s2.shutdown();
    //bring up a new instance of server with the previously persisted data
    LayoutServer s3 = getDefaultServer(serviceDir);
    assertThat(s3).isInEpoch(newEpoch);
    assertThat(s3).isPhase1Rank(new Rank(1L, AbstractServerTest.testClientId));
    assertThat(s3).isPhase2Rank(new Rank(1L, AbstractServerTest.testClientId));
    assertThat(s3).isProposedLayout(newLayout);
}

Example 28 with Layout

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

the class LayoutServerTest method checkMessagesValidatedAgainstPhase1PersistedData.

/**
     * Validates that the layout server accept or rejects incoming phase1 messages based on
     * the last persisted phase1 rank.
     *
     * @throws Exception
     */
@Test
public void checkMessagesValidatedAgainstPhase1PersistedData() 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).isInEpoch(newEpoch);
    assertThat(s1).isPhase1Rank(new Rank(HIGH_RANK, AbstractServerTest.testClientId));
    s1.shutdown();
    // reboot
    LayoutServer s2 = getDefaultServer(serviceDir);
    assertThat(s2).isInEpoch(newEpoch);
    assertThat(s2).isPhase1Rank(new Rank(HIGH_RANK, AbstractServerTest.testClientId));
    //new LAYOUT_PREPARE message with a lower phase1 rank should be rejected
    sendPrepare(newEpoch, HIGH_RANK - 1);
    Assertions.assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.LAYOUT_PREPARE_REJECT);
    //new LAYOUT_PREPARE message with a higher phase1 rank should be accepted
    sendPrepare(newEpoch, HIGH_RANK + 1);
    Assertions.assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.LAYOUT_PREPARE_ACK);
}

Example 29 with Layout

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

the class ManagementServerTest method bootstrapManagementServer.

/**
     * Bootstrapping the management server multiple times.
     */
@Test
public void bootstrapManagementServer() {
    Layout layout = TestLayoutBuilder.single(SERVERS.PORT_0);
    sendMessage(CorfuMsgType.MANAGEMENT_BOOTSTRAP_REQUEST.payloadMsg(layout));
    assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.ACK);
    sendMessage(CorfuMsgType.MANAGEMENT_BOOTSTRAP_REQUEST.payloadMsg(layout));
    assertThat(getLastMessage().getMsgType()).isEqualTo(CorfuMsgType.MANAGEMENT_ALREADY_BOOTSTRAP_ERROR);
}

Example 30 with Layout

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

the class FailureHandlerDispatcherTest method updateLayoutOnFailure.

/**
     * triggers the handler with failure and checks for update in layout.
     */
@Test
public void updateLayoutOnFailure() {
    addServer(SERVERS.PORT_0);
    addServer(SERVERS.PORT_1);
    addServer(SERVERS.PORT_2);
    Layout originalLayout = new TestLayoutBuilder().setEpoch(1L).addLayoutServer(SERVERS.PORT_0).addLayoutServer(SERVERS.PORT_1).addLayoutServer(SERVERS.PORT_2).addSequencer(SERVERS.PORT_0).addSequencer(SERVERS.PORT_1).addSequencer(SERVERS.PORT_2).buildSegment().buildStripe().addLogUnit(SERVERS.PORT_0).addLogUnit(SERVERS.PORT_1).addLogUnit(SERVERS.PORT_2).addToSegment().addToLayout().build();
    bootstrapAllServers(originalLayout);
    CorfuRuntime corfuRuntime = new CorfuRuntime();
    corfuRuntime.addLayoutServer(getEndpoint(SERVERS.PORT_0));
    corfuRuntime.addLayoutServer(getEndpoint(SERVERS.PORT_1));
    corfuRuntime.addLayoutServer(getEndpoint(SERVERS.PORT_2));
    corfuRuntime.connect();
    Set<String> failedServers = new HashSet<>();
    failedServers.add(getEndpoint(SERVERS.PORT_2));
    FailureHandlerDispatcher failureHandlerDispatcher = new FailureHandlerDispatcher();
    IFailureHandlerPolicy failureHandlerPolicy = new PurgeFailurePolicy();
    failureHandlerDispatcher.dispatchHandler(failureHandlerPolicy, originalLayout, corfuRuntime, failedServers);
    Layout expectedLayout = new TestLayoutBuilder().setEpoch(2L).addLayoutServer(SERVERS.PORT_0).addLayoutServer(SERVERS.PORT_1).addSequencer(SERVERS.PORT_0).addSequencer(SERVERS.PORT_1).buildSegment().buildStripe().addLogUnit(SERVERS.PORT_0).addLogUnit(SERVERS.PORT_1).addToSegment().addToLayout().build();
    assertThat(getLayoutServer(SERVERS.PORT_0).getCurrentLayout()).isEqualTo(getLayoutServer(SERVERS.PORT_1).getCurrentLayout()).isEqualTo(expectedLayout);
}