7.3.30. log_reopen Summary

log_reopen is a command that reloads log files.

It is used to reload log files such as groonga log or query log which are specified by --log-path or --query-log-path options.


This command only works when the number of worker processes is equal to 1. Thus, it means that if you use groonga-httpd with 2 or more workers, you must use groonga-httpd -s reopen instead. Syntax

This command takes no parameters:

log_reopen Usage


[true] Lotate log files with log_reopen

  1. Rename target log files such as mv command. (Log content is still written into moved log files)

  2. Execute log_reopen command.

  3. New log file is created as same as existing log file name. newer log content is written to new log file. Parameters

There is no required parameter. Return value

The command returns true as body if the command succeeds such as:

[HEADER, true]

The command returns false otherwise such as:

[HEADER, false] See also

log_level log_put