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authorJoseph Fernandes <josferna@redhat.com>2015-08-04 20:38:06 +0530
committerDan Lambright <dlambrig@redhat.com>2015-10-10 18:10:18 -0700
commit2def6bbfc72f9dd7ae6a16befdaf45ac1076b648 (patch)
tree6f1840ee70b7bc6115460e21f88069cb0b32bf42 /libglusterfs
parent98fa496c211dc0da7bccb68fc57f97d835e56c28 (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 master patch : http://review.gluster.org/#/c/11828/ >>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> Signed-off-by: Joseph Fernandes <josferna@redhat.com> Change-Id: I61b185a54ae4e8c1d82804b95a278bfbea870987 BUG: 1261146 Reviewed-on: http://review.gluster.org/12331 Tested-by: NetBSD Build System <jenkins@build.gluster.org> 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')
-rw-r--r--libglusterfs/src/glusterfs.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/libglusterfs/src/glusterfs.h b/libglusterfs/src/glusterfs.h
index f23f19cbaa0..2a556485824 100644
--- a/libglusterfs/src/glusterfs.h
+++ b/libglusterfs/src/glusterfs.h
@@ -244,6 +244,8 @@
#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