diff options
| author | Joseph Fernandes <josferna@redhat.com> | 2015-08-04 20:38:06 +0530 |
|---|---|---|
| committer | Dan Lambright <dlambrig@redhat.com> | 2015-10-10 10:42:07 -0700 |
| commit | f6618acd4f7642dab19445e35cf2c7fbc8244a5e (patch) | |
| tree | df8997f7e472cb5ad1f7d95cef29e24ab5071923 /libglusterfs/src | |
| parent | 672baab88fb7f32e844cd4be22e0924e4e0e83fc (diff) | |
tier/ctr: CTR DB named lookup heal of cold tier during attach tier
Heal hardlink in the db for already existing data in the cold
tier during attach tier. i.e during fix layout do lookup to files
in the cold tier.
CTR xlator on the brick/server side does db update/insert of the hardlink on a namelookup.
Currently the namedlookup is done synchronous to the fixlayout that is
triggered by attach tier. This is not performant, adding more time to
fixlayout. The performant approach is record the hardlinks on a compressed
datastore and then do the namelookup asynchronously later, giving the ctr db
eventual consistency
Change-Id: I4ffc337fffe7d447804786851a9183a51b5044a9
BUG: 1252586
Signed-off-by: Joseph Fernandes <josferna@redhat.com>
Reviewed-on: http://review.gluster.org/11828
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Dan Lambright <dlambrig@redhat.com>
Tested-by: Dan Lambright <dlambrig@redhat.com>
Diffstat (limited to 'libglusterfs/src')
| -rw-r--r-- | libglusterfs/src/glusterfs.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libglusterfs/src/glusterfs.h b/libglusterfs/src/glusterfs.h index fae7d490af8..3bc76f6622a 100644 --- a/libglusterfs/src/glusterfs.h +++ b/libglusterfs/src/glusterfs.h @@ -239,6 +239,8 @@ #define CTR_RESPONSE_LINK_COUNT_XDATA "ctr_response_link_count" #define CTR_REQUEST_LINK_COUNT_XDATA "ctr_request_link_count" +#define CTR_ATTACH_TIER_LOOKUP "ctr_attach_tier_lookup" + #define GF_LOG_LRU_BUFSIZE_DEFAULT 5 #define GF_LOG_LRU_BUFSIZE_MIN 0 #define GF_LOG_LRU_BUFSIZE_MAX 20 |