[doc][ybm] Tablet peer alert (#23942)

* Tablet peer alert * edit * Update docs/content/preview/yugabyte-cloud/cloud-monitor/cloud-alerts.md Co-authored-by: Daniel Isen <[email protected]> * new Azure regions --------- Co-authored-by: Daniel Isen <[email protected]>
yugabyte · Sep 17, 2024 · 70aa7d7 · 70aa7d7
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diff --git a/docs/content/preview/architecture/yb-tserver.md b/docs/content/preview/architecture/yb-tserver.md
@@ -19,11 +19,11 @@ The YugabyteDB Tablet Server (YB-TServer) service is responsible for the input-o
 
 The following diagram depicts a basic four-node YugabyteDB universe, with one table that has 4 tablets and a replication factor of 3:
 
-![Tserver overview](/images/architecture/tserver_overview.png)
+![TServer overview](/images/architecture/tserver_overview.png)
 
 The tablet-peers corresponding to each tablet hosted on different YB-TServers form a Raft group and replicate data between each other. The system shown in the preceding diagram includes sixteen independent Raft groups. For more information, see [Replication layer](../docdb-replication/).
 
-Within each YB-TServer, cross-tablet intelligence is employed to maximize resource efficiency. There are multiple ways the YB-TServer coordinates operations across the tablets it hosts.
+In each YB-TServer, cross-tablet intelligence is employed to maximize resource efficiency. There are multiple ways the YB-TServer coordinates operations across the tablets it hosts.
 
 ## Server-global block cache
 

diff --git a/docs/content/preview/yugabyte-cloud/cloud-basics/create-clusters-overview.md b/docs/content/preview/yugabyte-cloud/cloud-basics/create-clusters-overview.md
@@ -289,9 +289,11 @@ The following **Azure regions** are available:
 - Seoul (koreacentral)
 - Ireland (northeurope)
 - Norway (norwayeast)
+- Doha (qatarcentral)
 - Johannesburg (southafricanorth)
 - Texas (southcentralus)
 - Singapore (southeastasia)
+- Stockholm (swedencentral)
 - Zurich (switzerlandnorth)
 - Dubai (uaenorth)
 - London (uksouth)

diff --git a/docs/content/preview/yugabyte-cloud/cloud-monitor/cloud-alerts.md b/docs/content/preview/yugabyte-cloud/cloud-monitor/cloud-alerts.md
@@ -53,7 +53,7 @@ YugabyteDB monitors the health of your clusters based on [cluster alert](#cluste
 | Status | Alert | Level |
 | :----- | :---- | :---- |
 | Healthy | No alerts<br/>[Disk throughput](#fix-throughput-alerts)<br/>[Disk IOPS](#fix-iops-alerts)<br/>[Fewer than 34% of nodes down](#fix-nodes-reporting-as-down-alerts) | <br/>Warning<br/>Warning<br/>Info |
-| Needs Attention | [Node free storage](#fix-storage-alerts)<br/>[More than 34% of nodes down](#fix-nodes-reporting-as-down-alerts)<br/>[Memory Utilization](#fix-memory-alerts)<br/>[YSQL Connections](#fix-ysql-connection-alerts)<br/>[CPU Utilization](#fix-cpu-alerts) | Warning or Severe<br/>Warning or Severe<br/>Warning or Severe<br/>Warning<br/>Warning or Severe<br/>Warning or Severe<br/>Warning or Severe
+| Needs Attention | [Tablet peers](#fix-storage-alerts)<br/>[Node free storage](#fix-storage-alerts)<br/>[More than 34% of nodes down](#fix-nodes-reporting-as-down-alerts)<br/>[Memory Utilization](#fix-memory-alerts)<br/>[YSQL Connections](#fix-ysql-connection-alerts)<br/>[CPU Utilization](#fix-cpu-alerts) | Warning or Severe<br/>Warning or Severe<br/>Warning<br/>Warning or Severe<br/>Warning or Severe<br/>Warning or Severe |
 | Unhealthy | [More than 66% of nodes down](#fix-nodes-reporting-as-down-alerts)<br/>[CMK unavailable](#fix-cmk-unavailable-alerts)  | Severe<br/>Warning |
 
 To see the alert conditions that caused the current health condition, click the cluster health icon.
@@ -74,6 +74,7 @@ When you receive a cluster alert, the first step is to review the chart for the
 
 | Alert | Metric |
 | :--- | :--- |
+| [Tablet Peers](#fix-tablet-peer-alerts) | Tablets |
 | [Disk Throughput](#fix-throughput-alerts) | Disk IOPS |
 | [Disk IOPS](#fix-iops-alerts) | Disk IOPS |
 | [Node Free Storage](#fix-storage-alerts) | Disk Usage metric |
@@ -93,6 +94,17 @@ If you get frequent cluster alerts on a [Sandbox cluster](../../cloud-basics/cre
 
 {{< /note >}}
 
+#### Fix tablet peer alerts
+
+YugabyteDB Aeon sends a notification when the number of [tablet peers](../../../architecture/docdb-replication/replication/#tablet-peers) in the cluster exceeds the threshold, as follows:
+
+- Number of tablet peers is 85% of the cluster limit (Warning).
+- Number of tablet peers is 100% of the cluster limit (Severe).
+
+If the number of tablet peers in the cluster approaches the limit for the cluster, consider scaling the cluster horizontally by adding nodes, or vertically by adding vCPUs.
+
+For information on scaling clusters, refer to [Scale and configure clusters](../../cloud-clusters/configure-clusters/).
+
 #### Fix throughput alerts
 
 YugabyteDB Aeon sends a notification when the disk throughput on any node in the cluster exceeds the threshold, as follows: