diff --git a/logging/config/cluster-logging-log-store.adoc b/logging/config/cluster-logging-log-store.adoc index d25020ec8b99..a3d2270cc697 100644 --- a/logging/config/cluster-logging-log-store.adoc +++ b/logging/config/cluster-logging-log-store.adoc @@ -11,22 +11,16 @@ You can make modifications to your log store, including: * storage for your Elasticsearch cluster * shard replication across data nodes in the cluster, from full replication to no replication -* external access to Elasticsearch data - -[NOTE] -==== -Scaling down Elasticsearch nodes is not supported. When scaling down, Elasticsearch pods can be accidentally deleted, -possibly resulting in shards not being allocated and replica shards being lost. -==== +* external access to Elasticsearch data //Following paragraph also in modules/cluster-logging-deploy-storage-considerations.adoc -Elasticsearch is a memory-intensive application. Each Elasticsearch node needs 16G of memory for both memory requests and limits, -unless you specify otherwise in the `ClusterLogging` custom resource. The initial set of {product-title} nodes might not be large enough +Elasticsearch is a memory-intensive application. Each Elasticsearch node needs 16G of memory for both memory requests and limits, +unless you specify otherwise in the `ClusterLogging` custom resource. The initial set of {product-title} nodes might not be large enough to support the Elasticsearch cluster. You must add additional nodes to the {product-title} cluster to run with the recommended -or higher memory. +or higher memory. -Each Elasticsearch node can operate with a lower memory setting though this is not recommended for production environments. +Each Elasticsearch node can operate with a lower memory setting, though this is not recommended for production environments. // The following include statements pull in the module files that comprise @@ -55,4 +49,3 @@ include::modules/cluster-logging-elasticsearch-persistent-storage-empty.adoc[lev include::modules/cluster-logging-manual-rollout-rolling.adoc[leveloffset=+1] include::modules/cluster-logging-elasticsearch-exposing.adoc[leveloffset=+1] - diff --git a/modules/cluster-logging-elasticsearch-scaledown.adoc b/modules/cluster-logging-elasticsearch-scaledown.adoc index 056307831eda..dea23e5cc746 100644 --- a/modules/cluster-logging-elasticsearch-scaledown.adoc +++ b/modules/cluster-logging-elasticsearch-scaledown.adoc @@ -5,12 +5,11 @@ [id="cluster-logging-elasticsearch-scaledown_{context}"] = Scaling down Elasticsearch pods -Reducing the number of Elasticsearch pod in your cluster can result in data loss or Elasticsearch performance degradation. +Reducing the number of Elasticsearch pods in your cluster can result in data loss or Elasticsearch performance degradation. -If you scale down, you should scale down by one pod at a time and allow the cluster to re-balance the shards and replicas. After the Elasticsearch health status returns to `green`, you can scale down by another pod. +If you scale down, you should scale down by one pod at a time and allow the cluster to re-balance the shards and replicas. After the Elasticsearch health status returns to `green`, you can scale down by another pod. [NOTE] ==== -If your Elasticsearch cluster is set to `ZeroRedundancy`, you should not scale down your Elasticsearch pods. +If your Elasticsearch cluster is set to `ZeroRedundancy`, you should not scale down your Elasticsearch pods. ==== -