Examples with GroupMember io.atomix.primitive.partition.GroupMember used on opensource projects

Example 6 with GroupMember

use of io.atomix.primitive.partition.GroupMember in project atomix by atomix.

the class PrimaryElectorServiceTest method testEnterSinglePartition.

@Test
public void testEnterSinglePartition() {
    PartitionId partition = new PartitionId("test", 1);
    PrimaryElectorService elector = newService();
    PrimaryTerm term;
    // 1st member to enter should be primary.
    GroupMember m1 = createGroupMember("node1", "group1");
    Session<?> s1 = createSession(m1);
    term = elector.enter(createEnterOp(partition, m1, s1));
    assertEquals(1L, term.term());
    assertEquals(m1, term.primary());
    assertEquals(1, term.candidates().size());
    // 2nd member to enter should be added to candidates.
    GroupMember m2 = createGroupMember("node2", "group1");
    Session<?> s2 = createSession(m2);
    term = elector.enter(createEnterOp(partition, m2, s2));
    assertEquals(1L, term.term());
    assertEquals(m1, term.primary());
    assertEquals(2, term.candidates().size());
    assertEquals(m2, term.candidates().get(1));
}

Example 7 with GroupMember

use of io.atomix.primitive.partition.GroupMember in project atomix by atomix.

the class PrimaryElectorServiceTest method enter.

private PrimaryTerm enter(String nodeId, String groupId, PrimaryElectorService elector) {
    PartitionId partId = new PartitionId("test", 1);
    GroupMember member = createGroupMember(nodeId, groupId);
    Session session = createSession(member);
    return elector.enter(createEnterOp(partId, member, session));
}

Example 8 with GroupMember

use of io.atomix.primitive.partition.GroupMember in project atomix by atomix.

the class DistributedLogServerContext method changeRole.

/**
 * Changes the roles.
 */
private void changeRole(PrimaryTerm term) {
    threadContext.execute(() -> {
        if (term.term() >= currentTerm) {
            log.debug("{} - Term changed: {}", memberId, term);
            currentTerm = term.term();
            leader = term.primary() != null ? term.primary().memberId() : null;
            followers = term.backups(replicationFactor - 1).stream().map(GroupMember::memberId).collect(Collectors.toList());
            if (Objects.equals(leader, clusterMembershipService.getLocalMember().id())) {
                if (this.role == null) {
                    this.role = new LeaderRole(this);
                    log.debug("{} transitioning to {}", clusterMembershipService.getLocalMember().id(), Role.LEADER);
                } else if (this.role.role() != Role.LEADER) {
                    this.role.close();
                    this.role = new LeaderRole(this);
                    log.debug("{} transitioning to {}", clusterMembershipService.getLocalMember().id(), Role.LEADER);
                }
            } else if (followers.contains(clusterMembershipService.getLocalMember().id())) {
                if (this.role == null) {
                    this.role = new FollowerRole(this);
                    log.debug("{} transitioning to {}", clusterMembershipService.getLocalMember().id(), Role.FOLLOWER);
                } else if (this.role.role() != Role.FOLLOWER) {
                    this.role.close();
                    this.role = new FollowerRole(this);
                    log.debug("{} transitioning to {}", clusterMembershipService.getLocalMember().id(), Role.FOLLOWER);
                }
            } else {
                if (this.role == null) {
                    this.role = new NoneRole(this);
                    log.debug("{} transitioning to {}", clusterMembershipService.getLocalMember().id(), Role.NONE);
                } else if (this.role.role() != Role.NONE) {
                    this.role.close();
                    this.role = new NoneRole(this);
                    log.debug("{} transitioning to {}", clusterMembershipService.getLocalMember().id(), Role.NONE);
                }
            }
        }
    });
}

Example 9 with GroupMember

use of io.atomix.primitive.partition.GroupMember in project atomix by atomix.

the class PrimaryBackupServiceContext method changeRole.

/**
 * Changes the roles.
 */
private void changeRole(PrimaryTerm term) {
    threadContext.execute(() -> {
        if (term.term() > currentTerm) {
            log.debug("Term changed: {}", term);
            currentTerm = term.term();
            primary = term.primary() != null ? term.primary().memberId() : null;
            backups = term.backups(descriptor.backups()).stream().map(GroupMember::memberId).collect(Collectors.toList());
            if (Objects.equals(primary, clusterMembershipService.getLocalMember().id())) {
                if (this.role == null) {
                    this.role = new PrimaryRole(this);
                    log.debug("{} transitioning to {}", clusterMembershipService.getLocalMember().id(), Role.PRIMARY);
                } else if (this.role.role() != Role.PRIMARY) {
                    this.role.close();
                    this.role = new PrimaryRole(this);
                    log.debug("{} transitioning to {}", clusterMembershipService.getLocalMember().id(), Role.PRIMARY);
                }
            } else if (backups.contains(clusterMembershipService.getLocalMember().id())) {
                if (this.role == null) {
                    this.role = new BackupRole(this);
                    log.debug("{} transitioning to {}", clusterMembershipService.getLocalMember().id(), Role.BACKUP);
                } else if (this.role.role() != Role.BACKUP) {
                    this.role.close();
                    this.role = new BackupRole(this);
                    log.debug("{} transitioning to {}", clusterMembershipService.getLocalMember().id(), Role.BACKUP);
                }
            } else {
                if (this.role == null) {
                    this.role = new NoneRole(this);
                    log.debug("{} transitioning to {}", clusterMembershipService.getLocalMember().id(), Role.NONE);
                } else if (this.role.role() != Role.NONE) {
                    this.role.close();
                    this.role = new NoneRole(this);
                    log.debug("{} transitioning to {}", clusterMembershipService.getLocalMember().id(), Role.NONE);
                }
            }
        }
    });
}