mirror of https://github.com/ceph/ceph
74 lines
1.9 KiB
ReStructuredText
74 lines
1.9 KiB
ReStructuredText
:orphan:
|
|
|
|
==================================================================================
|
|
rbd-replay-many -- replay a rados block device (RBD) workload on several clients
|
|
==================================================================================
|
|
|
|
.. program:: rbd-replay-many
|
|
|
|
Synopsis
|
|
========
|
|
|
|
| **rbd-replay-many** [ *options* ] --original-image *name* *host1* [ *host2* [ ... ] ] -- *rbd_replay_args*
|
|
|
|
|
|
Description
|
|
===========
|
|
|
|
**rbd-replay-many** is a utility for replaying a rados block device (RBD) workload on several clients.
|
|
Although all clients use the same workload, they replay against separate images.
|
|
This matches normal use of librbd, where each original client is a VM with its own image.
|
|
|
|
Configuration and replay files are not automatically copied to clients.
|
|
Replay images must already exist.
|
|
|
|
|
|
Options
|
|
=======
|
|
|
|
.. option:: --original-image name
|
|
|
|
Specifies the name (and snap) of the originally traced image.
|
|
Necessary for correct name mapping.
|
|
|
|
.. option:: --image-prefix prefix
|
|
|
|
Prefix of image names to replay against.
|
|
Specifying --image-prefix=foo results in clients replaying against foo-0, foo-1, etc.
|
|
Defaults to the original image name.
|
|
|
|
.. option:: --exec program
|
|
|
|
Path to the rbd-replay executable.
|
|
|
|
.. option:: --delay seconds
|
|
|
|
Delay between starting each client. Defaults to 0.
|
|
|
|
|
|
Examples
|
|
========
|
|
|
|
Typical usage::
|
|
|
|
rbd-replay-many host-0 host-1 --original-image=image -- -c ceph.conf replay.bin
|
|
|
|
This results in the following commands being executed::
|
|
|
|
ssh host-0 'rbd-replay' --map-image 'image=image-0' -c ceph.conf replay.bin
|
|
ssh host-1 'rbd-replay' --map-image 'image=image-1' -c ceph.conf replay.bin
|
|
|
|
|
|
Availability
|
|
============
|
|
|
|
**rbd-replay-many** is part of Ceph, a massively scalable, open-source, distributed storage system. Please refer to
|
|
the Ceph documentation at http://ceph.com/docs for more information.
|
|
|
|
|
|
See also
|
|
========
|
|
|
|
:doc:`rbd-replay <rbd-replay>`\(8),
|
|
:doc:`rbd <rbd>`\(8)
|