80 lines
4.9 KiB
Markdown
80 lines
4.9 KiB
Markdown
AWS ElastiCache Redis Service DataDog monitors
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==============================================
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How to use this module
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----------------------
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```
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module "datadog-monitors-aws-elasticcache-redis" {
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source = "git::ssh://git@bitbucket.org/morea/terraform.feature.datadog.git//cloud/aws/elasticache/redis?ref={revision}"
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message = "${module.datadog-message-alerting.alerting-message}"
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environment = "${var.environment}"
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elasticache_size = "${var.size_of_elsaticache}"
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nodes = "${data.my_cluster.num_cache_nodes}"
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}
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```
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You can retrieve the number of nodes using the data source :
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```
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data "aws_elasticache_cluster" "my_cluster" {
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cluster_id = "my-cluster-id"
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}
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```
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Purpose
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-------
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Creates DataDog monitors with the following checks:
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* Cache hits
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* CPU high
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* Commands received
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* Replication lag
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Inputs
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------
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| Name | Description | Type | Default | Required |
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|------|-------------|:----:|:-----:|:-----:|
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| cache_hits_message | Custom message for Elasticache redis cache hits monitor | string | `` | no |
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| cache_hits_silenced | Groups to mute for Elasticache redis cache hits monitor | map | `<map>` | no |
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| cache_hits_threshold_critical | Elasticache redis cache hits critical threshold in percentage | string | `10` | no |
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| cache_hits_threshold_warning | Elasticache redis cache hits warning threshold in percentage | string | `20` | no |
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| cache_hits_timeframe | Monitor timeframe for Elasticache redis cache hits [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | string | `last_15m` | no |
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| commands_message | Custom message for Elasticache redis commands monitor | string | `` | no |
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| commands_silenced | Groups to mute for Elasticache redis commands monitor | map | `<map>` | no |
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| commands_timeframe | Monitor timeframe for Elasticache redis commands [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | string | `last_5m` | no |
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| cpu_high_message | Custom message for Elasticache redis cpu high monitor | string | `` | no |
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| cpu_high_silenced | Groups to mute for Elasticache redis cpu high monitor | map | `<map>` | no |
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| cpu_high_threshold_critical | Elasticache redis cpu high critical threshold in percentage | string | `90` | no |
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| cpu_high_threshold_warning | Elasticache redis cpu high warning threshold in percentage | string | `75` | no |
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| cpu_high_time_aggregator | Monitor aggregator for Elasticache redis cpu high [available values: min, max or avg] | string | `avg` | no |
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| cpu_high_timeframe | Monitor timeframe for Elasticache redis cpu high [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | string | `last_15m` | no |
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| delay | Delay in seconds for the metric evaluation | string | `900` | no |
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| elasticache_size | Size of the Elasticache instance | string | - | yes |
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| environment | Infrastructure Environment | string | - | yes |
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| filter_tags_custom | Tags used for custom filtering when filter_tags_use_defaults is false | string | `*` | no |
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| filter_tags_use_defaults | Use default filter tags convention | string | `true` | no |
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| message | Message sent when an alert is triggered | string | - | yes |
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| nodes | Number of Elasticache nodes | string | - | yes |
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| replication_lag_message | Custom message for Elasticache redis replication lag monitor | string | `` | no |
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| replication_lag_silenced | Groups to mute for Elasticache redis replication lag monitor | map | `<map>` | no |
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| replication_lag_threshold_critical | Elasticache redis replication lag critical threshold in seconds | string | `1` | no |
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| replication_lag_threshold_warning | Elasticache redis replication lag warning threshold in seconds | string | `0` | no |
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| replication_lag_time_aggregator | Monitor aggregator for Elasticache redis replication lag [available values: min, max or avg] | string | `min` | no |
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| replication_lag_timeframe | Monitor timeframe for Elasticache redis replication lag [available values: `last_#m` (1, 5, 10, 15, or 30), `last_#h` (1, 2, or 4), or `last_1d`] | string | `last_5m` | no |
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Related documentation
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---------------------
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DataDog documentation:
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* [https://docs.datadoghq.com/integrations/amazon_elasticache/](https://docs.datadoghq.com/integrations/amazon_elasticache/)
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* [https://www.datadoghq.com/dashboards/elasticache-dashboard-redis/](https://www.datadoghq.com/dashboards/elasticache-dashboard-redis/)
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* [https://www.datadoghq.com/blog/monitoring-elasticache-performance-metrics-with-redis-or-memcached/](https://www.datadoghq.com/blog/monitoring-elasticache-performance-metrics-with-redis-or-memcached/)
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AWS ElasticSearch Service Instance metrics documentation: [https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/elasticache-metricscollected.html](https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/elasticache-metricscollected.html)
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