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author | Qiaowei Ren <qiaowei.ren@intel.com> | 2018-01-04 13:43:33 +0800 |
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committer | Qiaowei Ren <qiaowei.ren@intel.com> | 2018-01-05 11:59:39 +0800 |
commit | 812ff6ca9fcd3e629e49d4328905f33eee8ca3f5 (patch) | |
tree | 04ece7b4da00d9d2f98093774594f4057ae561d4 /src/ceph/doc/cephfs/journaler.rst | |
parent | 15280273faafb77777eab341909a3f495cf248d9 (diff) |
initial code repo
This patch creates initial code repo.
For ceph, luminous stable release will be used for base code,
and next changes and optimization for ceph will be added to it.
For opensds, currently any changes can be upstreamed into original
opensds repo (https://github.com/opensds/opensds), and so stor4nfv
will directly clone opensds code to deploy stor4nfv environment.
And the scripts for deployment based on ceph and opensds will be
put into 'ci' directory.
Change-Id: I46a32218884c75dda2936337604ff03c554648e4
Signed-off-by: Qiaowei Ren <qiaowei.ren@intel.com>
Diffstat (limited to 'src/ceph/doc/cephfs/journaler.rst')
-rw-r--r-- | src/ceph/doc/cephfs/journaler.rst | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/ceph/doc/cephfs/journaler.rst b/src/ceph/doc/cephfs/journaler.rst new file mode 100644 index 0000000..2121532 --- /dev/null +++ b/src/ceph/doc/cephfs/journaler.rst @@ -0,0 +1,41 @@ +=========== + Journaler +=========== + +``journaler write head interval`` + +:Description: How frequently to update the journal head object +:Type: Integer +:Required: No +:Default: ``15`` + + +``journaler prefetch periods`` + +:Description: How many stripe periods to read-ahead on journal replay +:Type: Integer +:Required: No +:Default: ``10`` + + +``journal prezero periods`` + +:Description: How many stripe periods to zero ahead of write position +:Type: Integer +:Required: No +:Default: ``10`` + +``journaler batch interval`` + +:Description: Maximum additional latency in seconds we incur artificially. +:Type: Double +:Required: No +:Default: ``.001`` + + +``journaler batch max`` + +:Description: Maximum bytes we will delay flushing. +:Type: 64-bit Unsigned Integer +:Required: No +:Default: ``0`` |