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.. -*- rst -*-
``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.
.. note::
This command only works when the number of worker processes is
equal to 1. Thus, it means that if you use
:doc:`/reference/executables/groonga-httpd` with 2 or more
workers, you must use ``groonga-httpd -s reopen`` instead.
Syntax
------
This command takes no parameters::
log_reopen
Usage
-----
::
log_reopen
[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
--------
:doc:`log_level`
:doc:`log_put`
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