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FusionInsight HD 6.5.0 Product Description 02

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
KrbServer and LdapServer

KrbServer and LdapServer

Basic Concept

Introduction

To manage the access control rights on data and resources in a FusionInsight cluster, it is recommended that the cluster of the Huawei FusionInsight platform be installed in security mode. In security mode, a client application must be authenticated and a secure session must be established before the application accesses any resource in a FusionInsight cluster. FusionInsight uses KrbServer to provide the Kerberos authentication function for all components, thereby implementing reliable authentication mechanisms.

LdapServer supports the Lightweight Directory Access Protocol (LDAP) to provide user and user group data saving capabilities for Kerberos authentication.

Architecture

The security authentication function during user login mainly depends on Kerberos and LDAP.

Figure 2-53 Security authentication scenario architecture

Figure 2-53 includes three scenarios:

  • Logging in to the FusionInsight Manager WebUI

    The authentication architecture includes steps 1, 2, 3, and 4.

  • Logging in to a component WebUI

    The authentication architecture includes steps 5, 6, 7, and 8.

  • Access between components

    The authentication architecture includes step 9.

Table 2-14 Key modules

Name

Description

Manager

FusionInsight Manager

Manager WS

FusionInsight WebBrowser

Kerberos1

KrbServer (management plane) service deployed in FusionInsight Manager, that is, OMS Kerberos

Kerberos2

KrbServer (service plane) service deployed in the cluster

LDAP1

LdapServer (management plane) service deployed in FusionInsight Manager, that is, OMS LDAP

LDAP2

LdapServer (service plane) service deployed in the cluster

Data operation mode of Kerberos1 in LDAP: The active and standby instances of Ldap1 and the two standby instances of LDAP2 can be accessed in load sharing mode. Data write operations can be performed only in the active LDAP1 instance. Data read operations can be performed in LDAP1 or LDAP2.

Data operation mode of Kerberos2 in LDAP: Data read operations can be performed in LDAP1 and LDAP2. Data write operations can be performed only in the active LDAP1 instance.

Principle

Kerberos authentication

Figure 2-54 Authentication process

LDAP data read and write

Figure 2-55 Data modification process

LDAP data synchronization

  • OMS LDAP data synchronization before cluster installation
    Figure 2-56 OMS LDAP data synchronization

    Data synchronization direction before cluster installation: Data is synchronized from the active OMS LDAP to the standby OMS LDAP.

  • LDAP data synchronization after cluster installation
    Figure 2-57 LDAP data synchronization

    Data synchronization direction after cluster installation: Data is synchronized from the active OMS LDAP to the standby OMS LDAP, standby component LDAP, and standby component LDAP.

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Updated: 2019-05-17

Document ID: EDOC1100074548

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