SHOW PARTITIONS

Shows partitions and relevant information about them.

Syntax

SHOW PARTITIONS [EXTENDED] [ON <database_name>];

Remarks

  • Shows partition information for the current database, or for the database in the optional ON clause.

  • This command must be run on the master aggregator or a child aggregator node (see Node Requirements for SingleStore Commands).

  • The SHOW PARTITIONS command includes a Locked column that indicates whether a partition is locked. Any query that accesses a locked partition will wait until the partition is unlocked before proceeding.

  • The EXTENDED option will display additional partition information including replication status, last command run, last error, and last message.

Example

SHOW PARTITIONS ON memsql_demo;
+---------+------------+------+--------+--------+
| Ordinal | Host | Port | Role | Locked |
+---------+------------+------+--------+--------+
| 0 | 10.0.3.2 | 3306 | Master | 0 |
| 1 | 10.0.15.33 | 3306 | Master | 0 |
| 2 | 10.0.3.2 | 3306 | Master | 0 |
| 3 | 10.0.15.33 | 3306 | Master | 0 |
| 4 | 10.0.3.2 | 3306 | Master | 0 |
| 5 | 10.0.15.33 | 3306 | Master | 0 |
| 6 | 10.0.3.2 | 3306 | Master | 0 |
| 7 | 10.0.15.33 | 3306 | Master | 0 |
| 8 | 10.0.3.2 | 3306 | Master | 0 |
| 9 | 10.0.15.33 | 3306 | Master | 0 |
| 10 | 10.0.3.2 | 3306 | Master | 0 |
| 11 | 10.0.15.33 | 3306 | Master | 0 |
| 12 | 10.0.3.2 | 3306 | Master | 0 |
| 13 | 10.0.15.33 | 3306 | Master | 0 |
| 14 | 10.0.3.2 | 3306 | Master | 0 |
| 15 | 10.0.15.33 | 3306 | Master | 0 |
+---------+------------+------+--------+--------+
16 rows in set (0.00 sec)

Last modified: June 22, 2022

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Verification instructions

Note: You must install cosign to verify the authenticity of the SingleStore file.

Use the following steps to verify the authenticity of singlestoredb-server, singlestoredb-toolbox, singlestoredb-studio, and singlestore-client SingleStore files that have been downloaded.

You may perform the following steps on any computer that can run cosign, such as the main deployment host of the cluster.

  1. (Optional) Run the following command to view the associated signature files.

    curl undefined
  2. Download the signature file from the SingleStore release server.

    • Option 1: Click the Download Signature button next to the SingleStore file.

    • Option 2: Copy and paste the following URL into the address bar of your browser and save the signature file.

    • Option 3: Run the following command to download the signature file.

      curl -O undefined
  3. After the signature file has been downloaded, run the following command to verify the authenticity of the SingleStore file.

    echo -n undefined |
    cosign verify-blob --certificate-oidc-issuer https://oidc.eks.us-east-1.amazonaws.com/id/CCDCDBA1379A5596AB5B2E46DCA385BC \
    --certificate-identity https://kubernetes.io/namespaces/freya-production/serviceaccounts/job-worker \
    --bundle undefined \
    --new-bundle-format -
    Verified OK