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Tables

You can check the current information for each of the tables in the metastore, for a selected cluster, from the Tables tab. The following details are shown:

  • Users accessing the tables

  • Number of applications accessing the tables

  • Number of partitions in a table

  • Types of applications accessing the tables

  • Table metadata

  • Table size

  • Tables running in (hot, warm, cold, and unknown states)

  • Total number of tables in a cluster

  • Recommendations and insights for the table

Configuring Tables report

Refer to Data Page configurations and ensure that the configurations for Hive Metstore connection, FSImage, and BigQuery are set.

Viewing table details
  1. Go to the Data > Tables tab.

  2. From the Metastore Type drop-down, select either Hive or BigQuery.

  3. From the Cluster/Workspaces/Project Id drop-down, select a cluster/workspace/project Id.

  4. From the Metastore drop-down, choose a metastore.

  5. Select a metastore option. A list of tables is displayed with the following metadata. The total tables for the selected cluster and metastore are displayed on the left datapage-total-tables.png. You can click download-csv.png to export the list of tables in CSV format.

    Click column-setting.png in the table header, to add or remove the columns in the table.

    Metadata

    Description

    Database

    Name of the database where the table is stored.

    Table

    Name of the table.

    Owner

    Owner of the table.

    Path

    Location of the table. Hover over to view the complete path.

    Table Type

    Type of the table.

    File System

    The file system that is used to store the table. Hover over to view the source of the table. For example, metastore or apps.

    Storage Format

    The format in which the table is stored. For example, text, ORC, PARQUET.

    Hover over to view the source of the table and the last updated time of this field.

    Created

    Date and time when the table was created. Hover over to view the source of the table and the last updated time of this field.

    Latest Access

    Date and time when the table was last accessed. Hover over to view the source of the table and the last updated time of this field

    Size

    Size of the table.

    Apps

    The type of app accessing the tables. Hover over to view various apps accessing the tables and the last updated time of this field.

    Partitions

    Number of partitions in a table.

    Users

    Number of users accessing the table.

    More Info

    Click View.png to access more information about the selected table.

  6. Select the checkbox corresponding to a table for which you want to view the details. The following graphs are updated based on the selection:

    • Users: This graph plots the number of users who access the tables on a given day.

      datapage-table-users.png
    • Apps: This graph plots the number of applications that access the tables on a given day.

      datapage-table-apps.png
    • Size: This graph plots the table size on a given day.

      datapage-table-size.png
Search and filter tables

In the Search box, you can enter the name of the table and click search.png, the corresponding tables are displayed.

To filter the tables using the heat map labels and table events, do the following:

  1. Go to Data > Tables > Table state section.

  2. From the Table State on the left, select any of the following heat labels. You can also choose any of the events listed under Table Events.

    The tables matching the corresponding heat labels are listed in the table. Here, the Hot option was selected, and the corresponding tables, which are color-coded with a red line on the left, are shown. Click the Reset button to discard the filters.

    tables-heat-label-select-red.png

    Optionally, you can define the heat labels for the table, and click column-setting.png in the Table State section. The Label Tables dialog is displayed.

    datapage-label-tables.png

    Move the color-slider to set the period for the tables to be defined under a specific color-coded heat label. The filter results are displayed. Click Download CSV to download the search results in CSV format. Click View.png in the More Info column for more details about the table.

Viewing more information