Active Shards in Cluster

Active Shards in Cluster

The Active Shards in Cluster frame shows the total number of primary and replica shards in an Elasticsearch cluster.

Index health - this will show the index name and color status

Index health

This frame shows the index name and the index color status count. Scrolling down the table, you will see the same index name with Yellow and Red color statuses. The number that follows the 27 index name is the count of the status color. If it is zero, there were no instances of the index being in that color status during the selected timeframes.

Elasticsearch Status by node information

Elasticsearch Status

The Elasticsearch Status by node information frame shows the Elasticsearch cluster status by color and by node. This helps indicate which node in the Elasticsearch cluster is returning what status during the selected timeframe.

Elasticsearch index information

Elasticsearch index information

The Elasticsearch index information table shows the index name, what node it is on, the number of indexed documents, the index health, and the index size in MB at a particular time.

Elasticsearch process CPU %

Elasticsearch process CPU

The Elasticsearch process CPU % frame shows the process CPU percent by the Elasticsearch process over the selected timeframe.

Elasticsearch Memory garbage collection

Elasticsearch Memory garbage

Elasticsearch is a Java process. If it runs low on allocated memory, it will initiate garbage collection to free up memory. If garbage collection is frequent, it is an indication that there may be too many indices or shards for the allocated memory. There may be an opportunity to clean up the indices and shards or Elasticsearch may need more memory.

Elasticsearch Index information

Elasticsearch Index Information

As indexes are created and updated, the index health may change.

Elasticsearch Index Size

Elasticsearch Index size

The Elasticsearch Index Size frame indicates the index name and size across the selected timeframe. It may indicate problems with how a site is indexing.

Elasticsearch Errors

Elasticsearch Errors

The Elasticsearch Errors frame displays errors with Elasticsearch like running out of space, switching from Yellow to Red status, when all shards fail, when there are parameter issues with searches, version errors and when all nodes are unavailable.

Elasticsearch Unassigned Shards:

Elasticsearch Unassigned Shards

Unassigned shards will cause a cluster to move from Green status to Yellow status.

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