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Tables browser

The CrateDB Admin UI comes with a tables browser that allows you to inspect and query regular document tables as well as BLOB tables.

Table of contents

Screenshots

Here’s what a simple document table looks like:

_images/tables.png

The top section on this screen shows you a basic overview. If you select QUERY TABLE you can query the table using the SQL console.

Below this, you will find the schema information:

If you have BLOB tables, you can access them by selecting the Blob Tables menu item on the left-hand sub-navigation menu.

Features

Overview section

This section displays the following table-level information:

Name:

The name of the table.

Health:

The health of the table.

Each table shard has a corresponding health status. The table-level health status always reflects the worst shard status. (Similarly, the cluster-level status always reflects the worst table-level status.)

Shards can be one of the following:

Green:

The primary shard and all replica shards are allocated to a node.

Yellow:

The primary shard is allocated, but not all replica shards are allocated to a node.

Red:

This specific shard is not allocated to a node.

Configured Replicas:

The number of configured replicas.

Configured Shards:

The number of configured shards

Started Shards:

The number of started shards allocated to a node and available for querying.

Missing Shards:

The total number of known shards that are missing on disk.

Underrepl. Shards:

The total number of configured replica shards that are currently missing (i.e. not created or re-created yet).

Total Records:

The total number of records (i.e. rows) the table has.

Unavailable Records:

The total number of records that should exist in missing shards.

Underrepl. Records:

The total number of records that do not have the required number of replica copies.

Size:

The total size on disk used by all primary shards.

Recovery:

The percentage of the recovery process that is complete (i.e. when re-starting a cluster).

Schema section

This section section displays information about each table column:

Name:

The name of the table column.

Type:

The column data type.

Other features

Display toggle:

Different groups of tables can be shown or hidden by toggling the corresponding arrow button on the left-hand sub-navigation menu.

Table filter:

The displayed list of tables can be filtered by entering text to match against the table name in the Filter tables text input.