mirror of
https://github.com/ceph/ceph
synced 2024-12-20 02:13:04 +00:00
174 lines
8.0 KiB
ReStructuredText
174 lines
8.0 KiB
ReStructuredText
=============
|
|
Influx Module
|
|
=============
|
|
|
|
.. mgr_module:: influx
|
|
|
|
The influx module continuously collects and sends time series data to an
|
|
influxdb database.
|
|
|
|
The influx module was introduced in the 13.x *Mimic* release.
|
|
|
|
--------
|
|
Enabling
|
|
--------
|
|
|
|
To enable the module, use the following command:
|
|
|
|
.. prompt:: bash $
|
|
|
|
ceph mgr module enable influx
|
|
|
|
If you wish to subsequently disable the module, you can use the equivalent
|
|
*disable* command:
|
|
|
|
.. prompt:: bash $
|
|
|
|
ceph mgr module disable influx
|
|
|
|
-------------
|
|
Configuration
|
|
-------------
|
|
|
|
For the influx module to send statistics to an InfluxDB server, it
|
|
is necessary to configure the servers address and some authentication
|
|
credentials.
|
|
|
|
Set configuration values using the following command:
|
|
|
|
.. prompt:: bash $
|
|
|
|
ceph config set mgr mgr/influx/<key> <value>
|
|
|
|
|
|
The most important settings are :confval:`mgr/influx/hostname`,
|
|
:confval:`mgr/influx/username` and :confval:`mgr/influx/password`.
|
|
For example, a typical configuration might look like this:
|
|
|
|
.. prompt:: bash $
|
|
|
|
ceph config set mgr mgr/influx/hostname influx.mydomain.com
|
|
ceph config set mgr mgr/influx/username admin123
|
|
ceph config set mgr mgr/influx/password p4ssw0rd
|
|
|
|
Following is the list of all configuration settings:
|
|
|
|
.. confval:: hostname
|
|
.. confval:: username
|
|
.. confval:: password
|
|
.. confval:: interval
|
|
.. confval:: database
|
|
.. confval:: port
|
|
.. confval:: ssl
|
|
.. confval:: verify_ssl
|
|
.. confval:: threads
|
|
.. confval:: batch_size
|
|
|
|
---------
|
|
Debugging
|
|
---------
|
|
|
|
By default, a few debugging statements as well as error statements have been set to print in the log files. Users can add more if necessary.
|
|
To make use of the debugging option in the module:
|
|
|
|
- Add this to the ceph.conf file.
|
|
|
|
.. code-block:: ini
|
|
|
|
[mgr]
|
|
debug_mgr = 20
|
|
|
|
- Use this command ``ceph influx self-test``.
|
|
- Check the log files. Users may find it easier to filter the log files using *mgr[influx]*.
|
|
|
|
--------------------
|
|
Interesting counters
|
|
--------------------
|
|
|
|
The following tables describe a subset of the values output by
|
|
this module.
|
|
|
|
^^^^^
|
|
Pools
|
|
^^^^^
|
|
|
|
+---------------+-----------------------------------------------------+
|
|
|Counter | Description |
|
|
+===============+=====================================================+
|
|
|stored | Bytes stored in the pool not including copies |
|
|
+---------------+-----------------------------------------------------+
|
|
|max_avail | Max available number of bytes in the pool |
|
|
+---------------+-----------------------------------------------------+
|
|
|objects | Number of objects in the pool |
|
|
+---------------+-----------------------------------------------------+
|
|
|wr_bytes | Number of bytes written in the pool |
|
|
+---------------+-----------------------------------------------------+
|
|
|dirty | Number of bytes dirty in the pool |
|
|
+---------------+-----------------------------------------------------+
|
|
|rd_bytes | Number of bytes read in the pool |
|
|
+---------------+-----------------------------------------------------+
|
|
|stored_raw | Bytes used in pool including copies made |
|
|
+---------------+-----------------------------------------------------+
|
|
|
|
^^^^
|
|
OSDs
|
|
^^^^
|
|
|
|
+------------+------------------------------------+
|
|
|Counter | Description |
|
|
+============+====================================+
|
|
|op_w | Client write operations |
|
|
+------------+------------------------------------+
|
|
|op_in_bytes | Client operations total write size |
|
|
+------------+------------------------------------+
|
|
|op_r | Client read operations |
|
|
+------------+------------------------------------+
|
|
|op_out_bytes| Client operations total read size |
|
|
+------------+------------------------------------+
|
|
|
|
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|Counter | Description |
|
|
+========================+==========================================================================+
|
|
|op_wip | Replication operations currently being processed (primary) |
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|op_latency | Latency of client operations (including queue time) |
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|op_process_latency | Latency of client operations (excluding queue time) |
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|op_prepare_latency | Latency of client operations (excluding queue time and wait for finished)|
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|op_r_latency | Latency of read operation (including queue time) |
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|op_r_process_latency | Latency of read operation (excluding queue time) |
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|op_w_in_bytes | Client data written |
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|op_w_latency | Latency of write operation (including queue time) |
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|op_w_process_latency | Latency of write operation (excluding queue time) |
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|op_w_prepare_latency | Latency of write operations (excluding queue time and wait for finished) |
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|op_rw | Client read-modify-write operations |
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|op_rw_in_bytes | Client read-modify-write operations write in |
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|op_rw_out_bytes | Client read-modify-write operations read out |
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|op_rw_latency | Latency of read-modify-write operation (including queue time) |
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|op_rw_process_latency | Latency of read-modify-write operation (excluding queue time) |
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|op_rw_prepare_latency | Latency of read-modify-write operations (excluding queue time |
|
|
| | and wait for finished) |
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|op_before_queue_op_lat | Latency of IO before calling queue (before really queue into ShardedOpWq)|
|
|
| | op_before_dequeue_op_lat |
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|op_before_dequeue_op_lat| Latency of IO before calling dequeue_op(already dequeued and get PG lock)|
|
|
+------------------------+--------------------------------------------------------------------------+
|
|
|
|
Latency counters are measured in microseconds unless otherwise specified in the description.
|
|
|