show-aggregators

Warning

SingleStore 9.0 gives you the opportunity to preview, evaluate, and provide feedback on new and upcoming features prior to their general availability. In the interim, SingleStore 8.9 is recommended for production workloads, which can later be upgraded to SingleStore 9.0.

Description

A convenience wrapper for running SELECT * FROM INFORMATION_SCHEMA.AGGREGATORS on the Master Aggregator on this host.

Returns a list of aggregators in the cluster. This command must be run from the same host that the Master Aggregator is on.

Refer to the Permission Matrix for the required permission.

Usage

Usage:
  memsqlctl show-aggregators [flags]

Flags:
  -h, --help   Help for show-aggregators

Global Flags:
  -c, --config FILE_PATH                     Path to the memsqctl config file
      --default-install-dir DIRECTORY_PATH   Path to the default install directory
      --insecure-ssl                         Fall back to insecure SSL connections to local nodes if memsqlctl is unable to otherwise establish a connection (ADVANCED)
  -j, --json                                 Print output in JSON format
      --node-metadata-file FILE_PATH         Path to the node metadata file
      --parallelism POSITIVE_INTEGER         Maximum amount of operations to be run in parallel
      --ssl-ca FILE_PATH                     The path to the CA certificate file (in PEM format) to authenticate the database certificate
      --timeout duration                     Maximum time for operation to complete (e.g., 30s, 10m, 1.5h)
      --verbose-json                         Print output in JSON format, include some warnings and user messages
  -v, --verbosity count                      Increase logging verbosity
  -y, --yes                                  Enable non-interactive mode and assume the user would like to move forward with the proposed actions by default

Remarks

This command is interactive unless you use either --yes or --json flag to override interactive behavior.
The memsqlctl show-aggregators command is equivalent to the sdb-admin show-aggregators command.

Output

The following is the standard output for the show-aggregators command.

Shell

sudo memsqlctl show-aggregators

+------------+------+--------+--------------------+------------------------------+-------------------+
|    Host    | Port | State  | Opened Connections | Average Roundtrip Latency ms | Master Aggregator |
+------------+------+--------+--------------------+------------------------------+-------------------+
| 172.17.0.2 | 3306 | online |0                   | null                         |1                  |
| 172.17.0.7 | 3307 | online |1                   | 10.089                       |0                  |
+------------+------+--------+--------------------+------------------------------+-------------------+