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MySQL 5.7 Reference Manual  /  ...  /  ndbinfo_select_all — Select From ndbinfo Tables

21.4.2 ndbinfo_select_all — Select From ndbinfo Tables

ndbinfo_select_all is a client program that selects all rows and columns from one or more tables in the ndbinfo database

Not all ndbinfo tables available in the mysql client can be read by this program. In addition, ndbinfo_select_all can show information about some tables internal to ndbinfo which cannot be accessed using SQL, including the tables and columns metadata tables.

To select from one or more ndbinfo tables using ndbinfo_select_all, it is necessary to supply the names of the tables when invoking the program as shown here:

shell> ndbinfo_select_all table_name1  [table_name2] [...]

For example:

shell> ndbinfo_select_all logbuffers logspaces
== logbuffers ==
node_id log_type        log_id  log_part        total   used    high
5       0       0       0       33554432        262144  0
6       0       0       0       33554432        262144  0
7       0       0       0       33554432        262144  0
8       0       0       0       33554432        262144  0
== logspaces ==
node_id log_type        log_id  log_part        total   used    high
5       0       0       0       268435456       0       0
5       0       0       1       268435456       0       0
5       0       0       2       268435456       0       0
5       0       0       3       268435456       0       0
6       0       0       0       268435456       0       0
6       0       0       1       268435456       0       0
6       0       0       2       268435456       0       0
6       0       0       3       268435456       0       0
7       0       0       0       268435456       0       0
7       0       0       1       268435456       0       0
7       0       0       2       268435456       0       0
7       0       0       3       268435456       0       0
8       0       0       0       268435456       0       0
8       0       0       1       268435456       0       0
8       0       0       2       268435456       0       0
8       0       0       3       268435456       0       0
shell>

The following table includes options that are specific to ndbinfo_select_all. Additional descriptions follow the table. For options common to most NDB Cluster programs (including ndbinfo_select_all), see Section 21.4.32, “Options Common to NDB Cluster Programs — Options Common to NDB Cluster Programs”.

Table 21.330 Command-line options for the ndbinfo_select_all program

Format Description Added, Deprecated, or Removed

--delay=#

Set the delay in seconds between loops. Default is 5.

All MySQL 5.7 based releases

--loops=#,

-l

Set the number of times to perform the select. Default is 1.

All MySQL 5.7 based releases

--database=db_name,

-d

Name of the database where the table located.

All MySQL 5.7 based releases

--parallelism=#,

-p

Set the degree of parallelism.

All MySQL 5.7 based releases


  • --delay=seconds

    Property Value
    Command-Line Format --delay=#
    Type Numeric
    Default Value 5
    Minimum Value 0
    Maximum Value MAX_INT

    This option sets the number of seconds to wait between executing loops. Has no effect if --loops is set to 0 or 1.

  • --loops=number, -l number

    Property Value
    Command-Line Format --loops=#
    Type Numeric
    Default Value 1
    Minimum Value 0
    Maximum Value MAX_INT

    This option sets the number of times to execute the select. Use --delay to set the time between loops.


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