我知道我可以public class Organisations extends SuperModel implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
@ManyToOne
@JoinColumn(name = "parent_id", nullable = true)
private Organisations parent;
@OneToMany(mappedBy = "parent")
private List<Organisations> childs = new ArrayList<Organisations>(); }
public class Permissions extends SuperModel implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
@NotNull
@ManyToOne(optional = false, fetch = FetchType.LAZY)
@JoinColumn(name = "user_id", nullable = false)
private Users user;
@NotNull
@ManyToOne(optional = false, fetch = FetchType.LAZY)
@JoinColumn(name = "organisation_id", nullable = false)
private Organisations organisation;
}
public class Roles extends SuperModel implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
@NotNull
@ManyToOne(optional = false, fetch = FetchType.LAZY)
@JoinColumn(name = "organisation_id", nullable = false)
private Organisations organisation;
@NotNull
@Size(min = 3, max = 20)
@Column(name = "role", unique = true, nullable = false)
private String role;
@ManyToMany(cascade = CascadeType.ALL)
@JoinTable(name="role_permissions", joinColumns=@JoinColumn(name="role_id"), inverseJoinColumns=@JoinColumn(name="permission_id"))
private List<Permissions> permissions = new ArrayList<Permissions>();
}
public class Users extends SuperModel implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
@NotNull
@ManyToOne(optional = false, fetch = FetchType.EAGER)
@JoinColumn(name = "organisation_id", nullable = false)
private Organisations organisation;
@NotNull
@ManyToOne(optional = false)
@OneToOne(optional = false, fetch = FetchType.EAGER)
@JoinColumn(name = "role_id", nullable = false)
private Roles role;
}
启动引擎。还有ipengine --profile=/path/to/ipcontroller-engine.json个进程。
但是，如何设置每个远程节点上运行的进程数？似乎len(c.ids)只是在远程计算机上启动一个进程。
答案 0 :(得分：0)
ipengine启动一个引擎（进程）。如果您需要多个引擎，则需要多次调用ipengine。一个捷径是ipcluster engines命令：
ipcluster engines -n 4
将启动4个引擎。