Tsuyoshi OZAWA created YARN-1325:
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Summary: RMHAProtocolService#serviceInit should check
configuration contains multiple RM
Key: YARN-1325
URL: https://issues.apache.org/jira/browse/YARN-1325
Project: Hadoop YARN
Issue Type: Sub-task
Components: resourcemanager
Reporter: Tsuyoshi OZAWA
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).
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