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docs/source/reference/minio-mc-admin/mc-admin-profile.rst

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====================
``mc admin profile``
====================
.. default-domain:: minio
.. contents:: Table of Contents
:local:
:depth: 2
.. mc:: mc admin profile
Description
-----------
.. start-mc-admin-profile-desc
The :mc-cmd:`mc admin profile` command generates profiling data for debugging
purposes.
.. end-mc-admin-profile-desc
.. admonition:: Use ``mc admin`` on MinIO Deployments Only
:class: note
.. include:: /includes/facts-mc-admin.rst
:start-after: start-minio-only
:end-before: end-minio-only
Profile Data Format
~~~~~~~~~~~~~~~~~~~
:mc-cmd:`mc admin profile` produces a ``ZIP`` archive ``profile.zip`` that
contains one or more ``.pprof`` files. Use the
`pprof <https://github.com/google/pprof>`__ ``go`` utility to read the
profile data.
Examples
--------
Profile Data for Single Resource
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Use :mc-cmd:`mc admin profile start` with the
:mc-cmd:`~mc admin profile start type` flag to start profiling the
resource:
.. code-block:: shell
:class: copyable
mc admin profile start --type "TYPE" ALIAS
- Replace :mc-cmd:`ALIAS <mc admin profile start TARGET>` with the
:mc-cmd:`alias <mc alias>` of the MinIO host.
- Replace :mc-cmd:`TYPE <mc admin profile start type>` with the resource to
profile.
Use :mc-cmd:`mc admin profile stop` to stop profiling data from the specified
resource and output the results:
.. code-block:: shell
:class: copyable
mc admin profile stop
The command outputs the profiled data as ``profile.zip``.
Profile Data for Multiple Resources
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Use :mc-cmd:`mc admin profile start` with the
:mc-cmd:`~mc admin profile start type` flag to start profiling the
resources:
.. code-block:: shell
:class: copyable
mc admin profile start --type "TYPE,[TYPE...]" ALIAS
- Replace :mc-cmd:`ALIAS <mc admin profile start TARGET>` with the
:mc-cmd:`alias <mc alias>` of the MinIO host.
- Replace :mc-cmd:`TYPE <mc admin profile start type>` with the resources to
profile. Specify multiple resources as a comma-separated list.
Use :mc-cmd:`mc admin profile stop` to stop profiling data from the specified
resources and output the results:
.. code-block:: shell
:class: copyable
mc admin profile stop
The command outputs the profiled data as ``profile.zip``.
Syntax
------
:mc-cmd:`mc admin profile` has the following syntax:
.. code-block:: shell
:class: copyable
mc admin profile SUBCOMMAND
:mc-cmd:`mc admin profile` supports the following subcommands:
.. mc-cmd:: start
:fullpath:
Starts collecting profiling data on the target MinIO deployment. The
command has the following syntax:
.. code-block:: shell
:class: copyable
mc admin profile start [FLAGS] TARGET
:mc-cmd:`mc admin profile start` supports the following arguments:
.. mc-cmd:: TARGET
The :mc-cmd:`alias <mc alias>` of a configured MinIO deployment from
which the command collects profiling data.
.. mc-cmd:: type
The type(s) of profiling data to collect from the
:mc-cmd:`~mc admin profile start TARGET` MinIO deployment.
Specify one or more of the following supported types as a comma-separated
list:
- ``cpu``
- ``mem``
- ``block``
- ``mutex``
- ``trace``
- ``threads``
- ``goroutines``
Defaults to ``cpu,mem,block`` if omitted.
.. mc-cmd:: stop
:fullpath:
Stops the profiling process and returns the collected data as
``profile.zip``. The ``zip`` file contains one or more
``.pprof`` files which are readable with programs like the ``go``
`pprof <https://github.com/google/pprof>`__ utility.
The command has the following syntax:
.. code-block:: shell
:class: copyable
mc admin profile stop TARGET
The command supports the following arguments:
.. mc-cmd:: TARGET
The :mc-cmd:`alias <mc alias>` of a configured MinIO deployment from
which the command returns available profiling data.