mirror of https://github.com/ceph/ceph
79 lines
1.9 KiB
ReStructuredText
79 lines
1.9 KiB
ReStructuredText
:orphan:
|
|
|
|
=========================================================
|
|
rbd-replay -- replay rados block device (RBD) workloads
|
|
=========================================================
|
|
|
|
.. program:: rbd-replay
|
|
|
|
Synopsis
|
|
========
|
|
|
|
| **rbd-replay** [ *options* ] *replay_file*
|
|
|
|
|
|
Description
|
|
===========
|
|
|
|
**rbd-replay** is a utility for replaying rados block device (RBD) workloads.
|
|
|
|
|
|
Options
|
|
=======
|
|
|
|
.. option:: -c ceph.conf, --conf ceph.conf
|
|
|
|
Use ceph.conf configuration file instead of the default /etc/ceph/ceph.conf to
|
|
determine monitor addresses during startup.
|
|
|
|
.. option:: -p pool, --pool pool
|
|
|
|
Interact with the given pool. Defaults to 'rbd'.
|
|
|
|
.. option:: --latency-multiplier
|
|
|
|
Multiplies inter-request latencies. Default: 1.
|
|
|
|
.. option:: --read-only
|
|
|
|
Only replay non-destructive requests.
|
|
|
|
.. option:: --map-image rule
|
|
|
|
Add a rule to map image names in the trace to image names in the replay cluster.
|
|
A rule of image1@snap1=image2@snap2 would map snap1 of image1 to snap2 of image2.
|
|
|
|
.. option:: --dump-perf-counters
|
|
|
|
**Experimental**
|
|
Dump performance counters to standard out before an image is closed.
|
|
Performance counters may be dumped multiple times if multiple images are closed,
|
|
or if the same image is opened and closed multiple times.
|
|
Performance counters and their meaning may change between versions.
|
|
|
|
|
|
Examples
|
|
========
|
|
|
|
To replay workload1 as fast as possible::
|
|
|
|
rbd-replay --latency-multiplier=0 workload1
|
|
|
|
To replay workload1 but use test_image instead of prod_image::
|
|
|
|
rbd-replay --map-image=prod_image=test_image workload1
|
|
|
|
|
|
Availability
|
|
============
|
|
|
|
**rbd-replay** is part of Ceph, a massively scalable, open-source, distributed storage system. Please refer to
|
|
the Ceph documentation at https://docs.ceph.com for more information.
|
|
|
|
|
|
See also
|
|
========
|
|
|
|
:doc:`rbd-replay-prep <rbd-replay-prep>`\(8),
|
|
:doc:`rbd <rbd>`\(8)
|