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1040 add acu db alarm #42

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merged 1 commit into from
Dec 20, 2023
Merged

1040 add acu db alarm #42

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127 changes: 63 additions & 64 deletions infra/lib/fhir-server-stack.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -318,74 +318,73 @@ export class FHIRServerStack extends Stack {
dbClusterName: string,
alarmAction?: SnsAction
) {
const memoryMetric = dbCluster.metricFreeableMemory();
const memoryAlarm = memoryMetric.createAlarm(
this,
`${dbClusterName}FreeableMemoryAlarm`,
{
threshold: mbToBytes(150),
evaluationPeriods: 1,
comparisonOperator:
cloudwatch.ComparisonOperator.LESS_THAN_OR_EQUAL_TO_THRESHOLD,
treatMissingData: cloudwatch.TreatMissingData.NOT_BREACHING,
}
);
alarmAction && memoryAlarm.addAlarmAction(alarmAction);
alarmAction && memoryAlarm.addOkAction(alarmAction);
const createAlarm = ({
name,
metric,
threshold,
evaluationPeriods,
comparisonOperator,
treatMissingData,
}: {
name: string;
metric: cloudwatch.Metric;
threshold: number;
evaluationPeriods: number;
comparisonOperator?: cloudwatch.ComparisonOperator;
treatMissingData?: cloudwatch.TreatMissingData;
}) => {
const alarm = metric.createAlarm(this, `${dbClusterName}${name}`, {
threshold,
evaluationPeriods,
comparisonOperator,
treatMissingData,
});
alarmAction && alarm.addAlarmAction(alarmAction);
alarmAction && alarm.addOkAction(alarmAction);
return alarm;
};

const storageMetric = dbCluster.metricFreeLocalStorage();
const storageAlarm = storageMetric.createAlarm(
this,
`${dbClusterName}FreeLocalStorageAlarm`,
{
threshold: mbToBytes(250),
evaluationPeriods: 1,
comparisonOperator:
cloudwatch.ComparisonOperator.LESS_THAN_OR_EQUAL_TO_THRESHOLD,
treatMissingData: cloudwatch.TreatMissingData.NOT_BREACHING,
}
);
alarmAction && storageAlarm.addAlarmAction(alarmAction);
alarmAction && storageAlarm.addOkAction(alarmAction);
Comment on lines -336 to -349
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Removed b/c it's not applicable to Aurora serverless v2 - link, search for FreeLocalStorage.

createAlarm({
metric: dbCluster.metricFreeableMemory(),
name: "FreeableMemoryAlarm",
threshold: mbToBytes(150),
evaluationPeriods: 1,
comparisonOperator:
cloudwatch.ComparisonOperator.LESS_THAN_OR_EQUAL_TO_THRESHOLD,
treatMissingData: cloudwatch.TreatMissingData.NOT_BREACHING,
});

const cpuMetric = dbCluster.metricCPUUtilization();
const cpuAlarm = cpuMetric.createAlarm(
this,
`${dbClusterName}CPUUtilizationAlarm`,
{
threshold: 90, // percentage
evaluationPeriods: 1,
treatMissingData: cloudwatch.TreatMissingData.NOT_BREACHING,
}
);
alarmAction && cpuAlarm.addAlarmAction(alarmAction);
alarmAction && cpuAlarm.addOkAction(alarmAction);
createAlarm({
metric: dbCluster.metricCPUUtilization(),
name: "CPUUtilizationAlarm",
threshold: 90, // percentage
evaluationPeriods: 1,
treatMissingData: cloudwatch.TreatMissingData.NOT_BREACHING,
});

const readIOPsMetric = dbCluster.metricVolumeReadIOPs();
const readAlarm = readIOPsMetric.createAlarm(
this,
`${dbClusterName}VolumeReadIOPsAlarm`,
{
threshold: 300_000, // IOPS
evaluationPeriods: 1,
treatMissingData: cloudwatch.TreatMissingData.NOT_BREACHING,
}
);
alarmAction && readAlarm.addAlarmAction(alarmAction);
alarmAction && readAlarm.addOkAction(alarmAction);
createAlarm({
metric: dbCluster.metricVolumeReadIOPs(),
name: "VolumeReadIOPsAlarm",
threshold: 300_000, // IOPS
evaluationPeriods: 1,
treatMissingData: cloudwatch.TreatMissingData.NOT_BREACHING,
});

const writeIOPsMetric = dbCluster.metricVolumeWriteIOPs();
const writeAlarm = writeIOPsMetric.createAlarm(
this,
`${dbClusterName}VolumeWriteIOPsAlarm`,
{
threshold: 300_000, // IOPS
evaluationPeriods: 1,
treatMissingData: cloudwatch.TreatMissingData.NOT_BREACHING,
}
);
alarmAction && writeAlarm.addAlarmAction(alarmAction);
alarmAction && writeAlarm.addOkAction(alarmAction);
createAlarm({
metric: dbCluster.metricVolumeWriteIOPs(),
name: "VolumeWriteIOPsAlarm",
threshold: 300_000, // IOPS
evaluationPeriods: 1,
treatMissingData: cloudwatch.TreatMissingData.NOT_BREACHING,
});

createAlarm({
metric: dbCluster.metricACUUtilization(),
name: "ACUUtilizationAlarm",
threshold: 80, // pct
evaluationPeriods: 1,
treatMissingData: cloudwatch.TreatMissingData.NOT_BREACHING,
});
}
}

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