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AWS opensearch-service documentation change

Service: opensearch-service · 2025-04-11 · Documentation low

File: opensearch-service/latest/developerguide/cloudwatch-alarms.md

Summary

Updated terminology from 'manager' to 'master' in alarm names and documentation references (e.g., ManagerCPUUtilization → MasterCPUUtilization, dedicated manager nodes → dedicated master nodes)

Security assessment

Changes involve terminology alignment rather than addressing security vulnerabilities or introducing security features. No evidence of security context in the diff.

Diff

diff --git a/opensearch-service/latest/developerguide/cloudwatch-alarms.md b/opensearch-service/latest/developerguide/cloudwatch-alarms.md
index ab59df03f..3f713db34 100644
--- a//opensearch-service/latest/developerguide/cloudwatch-alarms.md
+++ b//opensearch-service/latest/developerguide/cloudwatch-alarms.md
@@ -35,3 +35,3 @@ Alarm | Issue
-`ManagerCPUUtilization` maximum is >= 50% for 15 minutes, 3 consecutive times | Consider using larger instance types for your [dedicated manager nodes](./managedomains-dedicatedmasternodes.html). Because of their role in cluster stability and [blue/green deployments](./managedomains-configuration-changes.html), dedicated manager nodes should have lower CPU usage than data nodes.  
-`ManagerJVMMemoryPressure` maximum is >= 95% for 1 minute, 3 consecutive times  
-`ManagerOldGenJVMMemoryPressure` maximum is >= 80% for 1 minute, 3 consecutive times  
+`MasterCPUUtilization` maximum is >= 50% for 15 minutes, 3 consecutive times | Consider using larger instance types for your [dedicated master nodes](./managedomains-dedicatedmasternodes.html). Because of their role in cluster stability and [blue/green deployments](./managedomains-configuration-changes.html), dedicated master nodes should have lower CPU usage than data nodes.  
+`MasterJVMMemoryPressure` maximum is >= 95% for 1 minute, 3 consecutive times  
+`MasterOldGenJVMMemoryPressure` maximum is >= 80% for 1 minute, 3 consecutive times  
@@ -42 +42 @@ Alarm | Issue
-`ManagerReachableFromNode` maximum is < 1 for 5 minutes, 1 consecutive time |  This alarm indicates that the manager node stopped or is unreachable. These failures are usually the result of a network connectivity issue or an AWS dependency problem.   
+`MasterReachableFromNode` maximum is < 1 for 5 minutes, 1 consecutive time |  This alarm indicates that the master node stopped or is unreachable. These failures are usually the result of a network connectivity issue or an AWS dependency problem.   
@@ -81 +81 @@ To use the Amazon Web Services Documentation, Javascript must be enabled. Please
-Dedicated manager nodes
+Dedicated master nodes