diff options
author | Qiaowei Ren <qiaowei.ren@intel.com> | 2018-03-01 14:38:11 +0800 |
---|---|---|
committer | Qiaowei Ren <qiaowei.ren@intel.com> | 2018-03-01 14:38:11 +0800 |
commit | 7da45d65be36d36b880cc55c5036e96c24b53f00 (patch) | |
tree | d4f944eb4f8f8de50a9a7584ffa408dc3a3185b2 /src/ceph/doc/rbd/rbd-replay.rst | |
parent | 691462d09d0987b47e112d6ee8740375df3c51b2 (diff) |
remove ceph code
This patch removes initial ceph code, due to license issue.
Change-Id: I092d44f601cdf34aed92300fe13214925563081c
Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>
Diffstat (limited to 'src/ceph/doc/rbd/rbd-replay.rst')
-rw-r--r-- | src/ceph/doc/rbd/rbd-replay.rst | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/src/ceph/doc/rbd/rbd-replay.rst b/src/ceph/doc/rbd/rbd-replay.rst deleted file mode 100644 index e1c96b2..0000000 --- a/src/ceph/doc/rbd/rbd-replay.rst +++ /dev/null @@ -1,42 +0,0 @@ -=================== - RBD Replay -=================== - -.. index:: Ceph Block Device; RBD Replay - -RBD Replay is a set of tools for capturing and replaying Rados Block Device -(RBD) workloads. To capture an RBD workload, ``lttng-tools`` must be installed -on the client, and ``librbd`` on the client must be the v0.87 (Giant) release -or later. To replay an RBD workload, ``librbd`` on the client must be the Giant -release or later. - -Capture and replay takes three steps: - -#. Capture the trace. Make sure to capture ``pthread_id`` context:: - - mkdir -p traces - lttng create -o traces librbd - lttng enable-event -u 'librbd:*' - lttng add-context -u -t pthread_id - lttng start - # run RBD workload here - lttng stop - -#. Process the trace with `rbd-replay-prep`_:: - - rbd-replay-prep traces/ust/uid/*/* replay.bin - -#. Replay the trace with `rbd-replay`_. Use read-only until you know - it's doing what you want:: - - rbd-replay --read-only replay.bin - -.. important:: ``rbd-replay`` will destroy data by default. Do not use against - an image you wish to keep, unless you use the ``--read-only`` option. - -The replayed workload does not have to be against the same RBD image or even the -same cluster as the captured workload. To account for differences, you may need -to use the ``--pool`` and ``--map-image`` options of ``rbd-replay``. - -.. _rbd-replay: ../../man/8/rbd-replay -.. _rbd-replay-prep: ../../man/8/rbd-replay-prep |