We have three boxes for Elasticsearch monitoring—next to the title it shows the Health as Yellow, Green, or Red and it has the following sections:
The Overview block shows us the Elasticsearch version, uptime, and running jobs. We can click on the title Overview to open the detail page of Overview:
This screenshot shows the detail view for Overview. Here, we have different graphs for Search Rate, Search Latency, Indexing Rate, Indexing Latency, and Shard Activity. It also shows nodes count, indices count, memory consumption, total number of shards, unassigned shards, number of documents, and data size, along with health.
Nodes shows the count of nodes after the title, disk availability in percentage and numbers, and JVM heap availability in percentage and numbers. We can click on the title Nodes to open the detail page of Nodes:
The preceding screenshot shows the detail view of Nodes. Here, we have the node Name, Status, CPU Usage with max and min indicators, Load Average with max and min indicators, JVM Memory percentage with max and min indicators, Disk Free Space with max and min indicators, and the number of Shards in the node.
By clicking on the node name, we can open the detail page of the node:
The preceding screenshot shows different graphs, such as JVM Heap, Index Memory, CPU Utilization, System Load, Latency, Segment Count, and Shard Legend. It also shows the IP address of Elasticsearch, the JVM heap percentage, free disk space, document count, data size, the number of indices, the number of shards, and the type of node and its health.
By default, the Overview tab opens, but we can click on the Advanced link to open the advanced view, where we have more details, such as the garbage collection count, index memory Lucene graphs, request rate, and indexing time:
The preceding screenshot shows the advanced view of the node details.
Indices shows the number of indices in front of the title, the number of documents, disk usage in MB, the count of primary shards, and the count of replica shards. We can click on the title Indices to open the detail page of Overview:
In the screenshot, we can see the index listing with Status, Document Count, Data, Index Rate, Search Rate, and Unassigned Shards. This page also provides the metrics, such as the node count, the index count, memory consumption, total shards, unassigned shards, and total documents and total data size.
We can click on the index name to open the detailed Overview page:
In the preceding screenshot, we have different graphs, such as Index Memory, Disk, Search Rate, Indexing Rate, Segment Count, and Document Count.