Help Center> MapReduce Service> Developer Guide (Normal_3.x)> Development Specifications> Security Authentication> Rules
Updated on 2022-09-14 GMT+08:00
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Rules

Only one account is used in each process and a process needs explicit authentication only once.

This rule must be met in the following scenarios (pay attention to this in the design phase):

  1. A process can access multiple clusters at the same time (Each cluster has independent KrbServer and LdapServer.)
  2. All applications running in a container (for example, Tomcat) belong to the same process.

IBM JDK version requirements

The IBM JDK version must be 1.7.0 or later:

java version "1.7.0" 
Java(TM) SE Runtime Environment (build pxa6470sr9fp30-20160112_01(SR9 FP30)) 
IBM J9 VM (build 2.6, JRE 1.7.0 Linux amd64-64 Compressed References 20151222_283043 (JIT enabled, AOT enabled) 
J9VM - R26_Java726_SR9_2051222_1626_B283043 
JIT  - tr.r11_20151209_107111.01 
GC   - R26_Java726_SR9_20151222_1626_B283043_CMPRSS 
J9CL - 20151222_283043) 
JCL - 20160112_01 based on Oracle jdk7u95-b13
Parent topic: Security Authentication