ndb_perror — Obtain NDB Error Message Information 23.4.16 ndb_perror — Obtain NDB Error Message Information ndb_perror  shows information about an NDB error, given its error code. This includes the error message, the type of error, and whether the error is permanent or temporary. This is intended as a drop-in replacement for  perror --ndb , which is no longer supported. ndb_perror [ options ]  error_code ndb_perror  does not need to access a running NDB Cluster, or any nodes (including SQL nodes). To view information about a given NDB error, invoke the program, using the error code as an argument, like this: shell>  ndb_perror 323 NDB error code 323: Invalid nodegroup id, nodegroup already existing: Permanent error: Application error shell>  ndb_perror -s 323 Invalid nodegroup id, nodegroup already existing: Permanent error: Application error To display only the error message, invoke  ndb_perror  with the  --silent  option (short form  -s ), as shown here: Like  perror ,  ndb_perror  accepts multiple error codes: Additional program options for  ndb_perror  are described later in this section. ndb_perror  replaces  perror --ndb , which is no longer supported by NDB Cluster. To make substitution easier in scripts and other applications that might depend on  perror  for obtaining NDB error information,  ndb_perror  supports its own “dummy” --ndb  option, which does nothing. The following table includes all options that are specific to the NDB Cluster program  ndb_perror Additional descriptions follow the table. shell>  ndb_perror 321 1001 NDB error code 321: Invalid nodegroup id: Permanent error: Application error NDB error code 1001: Illegal connect string Table 23.38 Command-line options used with the program ndb_perror Format Description Added, Deprecated, or Removed --defaults-extra- file=path Read given file after global files are read (Supported in all NDB releases based on MySQL 8.0) --defaults-file=path Read default options from given file only (Supported in all NDB releases based on MySQL 8.0) 4351 Usage Display version information and exit. • --version Enable verbose messages. Command-Line Format --version Default Value FALSE