## Introduction

In log cluster health, you can view monitoring information, such as: CPU utilization, memory utilization, and documents per second along with cluster statistics, such as total nodes, total shards, successful shards, number of indices, the total number of documents, and the size of documents. In log cluster health, you can see the following information which are listed below:

- Cluster Overview
- Cluster Statistics
- Cluster Health
- Indices

## Cluster Overview

In cluster overview, you can see the overall information of a cluster such as monitoring information which are listed below:

- CPU: This refers to the measurement of the load and efficiency of CPU resources in NetForest Nodes.
- Memory: This refers to the measurement of how efficiently memory resources are being used within an NetForest cluster.
- Documents per second (Docs/sec): This refers to the measurement of the rate at which new data is ingested into the cluster.

You can see the cluster's overview information in a graphical format. In the graphical format, there are two axis X-axis and Y-axis.In X-axis, you can see the Time whereas, in Y-axis you can see the CPU Percentage or Memory or Doc/sec.

## Cluster Statistics

A cluster statistic, provides a comprehensive view of the performance,health and configuration of a NetForest Cluster. These statistics are essential for administrator and operators to monitor cluster operation, troubleshoot issues, optimize performance, and ensure the reliable and efficient handling of machine-generated data with the NetForest environment. In cluster statistics, you can see the following information which are listed below:

- Number of Nodes: This refers to the count of individual server instance or machine that are a part of the NetForest cluster.
- Documents: This refers to the overall data records present in the database.
- Total Shards: This refers to the total number of all primary shards and replica present in a cluster.
- Successful Shards: This refers to the count of primary shards and replica that has successfully completed an operation such as: indexing, searching or updating without encountering errors or exception.
- Indices: This refers to the logical containers that organize related documents,support efficient data retrieval and search,and provide data segmentation, replication, and fault tolerance features.
- Size(GB): This refers to the overall size of data records present in the database.

## Cluster Health

A cluster health monitoring invovles tracking the status of the cluster, individual nodes, data ingestion, indexing, search performance and various operational aspects. A cluster health ensures the reliability, performance, status, and stability of a NetForest cluster.

## Indices

Indices are logical containers for organizing and managing documents or data. Indices provides a structured way to store and retrieve data, support dynamic schema and play a crucial role in enabling NetForest. In indices, you can see the following details which are listed below:

- Index: This refers to the logical container that groups and stores related documents. An index plays an important role in data storage, retrieval and management which allows NetForest to efficiently handle large volumes of data and provide powerful search and analysis capabilities.
- Docs: This refers to the fundamental unit of data that represents a single piece of information in a NetForest index.
- Docs/Sec: This refers to the rate at which new documents are indexed into the cluster within one second.
- Primary Size: This refers to the amount of disk storage space used by the primary shards of an index.
- Shards: This refers to the smaller units into which an index is divided to distribute, replicate and manage data efficiently across a cluster of nodes.
- Replicas: This refers to the exact copies of primary shards that provides data redundancy, fault tolerance and high availability within NetForest.
- Status: This refers to the health and operational state of various components within the cluster such as: cluster, node, indices and shards. There are following status which you can see: Open and Close.

You can show/hide a widgets in the Cluster Overview Window by clicking on the Show/Hide icon.

You can also refresh the Cluster Monitor window by clicking on the Refresh icon.