[YARN-1325] Enabling HA should check Configuration contains multiple RMs

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.3.0
• Component/s: resourcemanager
• Labels: ha
• Hadoop Flags: Reviewed
• Assignee: Xuan Gong
• Reporter: Tsuyoshi Ozawa
• Created: 18/Oct/13 23:35
• Updated: 24/Feb/14 20:58
• Resolved: 12/Dec/13 20:51

Description

Currently, we can enable RM HA configuration without multiple RM ids(YarnConfiguration.RM_HA_IDS). This behaviour can cause wrong operations. ResourceManager should verify that more than 1 RM id must be specified in RM-HA-IDs.

One idea is to support "strict mode" to enforce this check as configuration(e.g. yarn.resourcemanager.ha.strict-mode.enabled).

Issue Links

• is related to: YARN-1305 RMHAProtocolService#serviceInit should handle HAUtil's IllegalArgumentException