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OpenSearch CloudWatch Alarms

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Deploying the CloudFormation Stack in this repository will create CloudWatch Alarms - that will trigger email alerts via. SNS notification - for the metrics documented in the table below.

To deploy the CloudWatch alarms click the button

Launch CloudFormation Stack

When prompted by CloudFormation enter the name of the OpenSearch domain to monitor and the email address you want notifications to be send to

AWS documention recomends these CloudWatch alarms as a means of monitoring an OpenSearch domain

Metric name Statistic Period (second) ComparisonOperator Threshold EvaluationPeriods
ClusterStatus.red Maximum 60 GreaterThanOrEqualToThreshold 1 1
ClusterStatus.yellow Maximum 60 GreaterThanOrEqualToThreshold 1 5
FreeStorageSpace Minimum 60 LessThanOrEqualToThreshold 20480 1
ClusterIndexWritesBlocked Maximum 300 GreaterThanOrEqualToThreshold 1 1
AutomatedSnapshotFailure Maximum 60 GreaterThanOrEqualToThreshold 1 1
CPUUtilization Maximum 900 GreaterThanOrEqualToThreshold 80 3
JVMMemoryPressure Maximum 60 GreaterThanOrEqualToThreshold 95 3
OldGenJVMMemoryPressure Maximum 60 GreaterThanOrEqualToThreshold 80 3
MasterCPUUtilization Maximum 900 GreaterThanOrEqualToThreshold 50 3
MasterJVMMemoryPressure Maximum 60 GreaterThanOrEqualToThreshold 95 3
MasterOldGenJVMMemoryPressure Maximum 60 GreaterThanOrEqualToThreshold 80 3
KMSKeyError Maximum 60 GreaterThanOrEqualToThreshold 1 1
KMSKeyInaccessible Maximum 60 GreaterThanOrEqualToThreshold 1 1
Shards.active Maximum 60 GreaterThanOrEqualToThreshold 30000 1
MasterReachableFromNode Maximum 86400 LessThanThreshold 1 1
ThreadpoolWriteQueue Average 60 GreaterThanOrEqualToThreshold 100 1
ThreadpoolSearchQueue Average 60 GreaterThanOrEqualToThreshold 500 1
ThreadpoolSearchQueue Maximum 60 GreaterThanOrEqualToThreshold 5000 1
ThreadpoolWriteRejected Maximum 60 GreaterThanOrEqualToThreshold 1 1
ThreadpoolSearchRejected Maximum 60 GreaterThanOrEqualToThreshold 1 1
Nodes Minimum 86400 LessThanThreshold 1 1