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authorDan Lambright <>2015-11-04 15:33:22 -0500
committerDan Lambright <>2015-11-24 04:13:53 -0800
commitb8c56ebe617327d570c252f8c411c85a84e727e6 (patch)
treeb8a94d37a3768a83ce3fc589d94efe86aea3676e /
parent974837c3da9deb45cd2dc31afe56e5960268cf01 (diff)
cluster/tier: readdirp to cold tier only
It is possible a file would get migrated in the middle of a readdir operation. If there are four subvolumes A,B,C,D, and if readdir reads them in order and reaches subvol B, then, if a file is moved from D to A, it will not be included in the readdir output. This phenonema has pre-existed in DHT migration but is more apparent in tiering. When a file is moved off the hashed subvolume a T file is created. For tiering, we will make the cold subvolume the hashed subvolume. This will ensure the creation of a T file. Readdir will not skip T files in the tier translator. Making the cold subvolume the hashed subvolume ensures the T files created on promotions or creates will be less likely to fill the volume. Creates still put the data on the hot subvolume. This is a backport of 12530 > Change-Id: Ifde557d3d0e94a4570ca9f115adee3db2ee75407 > BUG: 1281598 > Signed-off-by: Dan Lambright <> > Reviewed-on: > Tested-by: Gluster Build System <> > Tested-by: NetBSD Build System <> > Reviewed-by: N Balachandran <> > Reviewed-by: Raghavendra G <> Signed-off-by: Dan Lambright <> Signed-off-by: Dan Lambright <> Conflicts: xlators/cluster/dht/src/tier.c Change-Id: I5720a4cd04ae5088e5d7d23439b0f90d6bbc6265 BUG: 1283923 Reviewed-on: Tested-by: NetBSD Build System <> Reviewed-by: N Balachandran <> Tested-by: Gluster Build System <> Reviewed-by: Dan Lambright <> Tested-by: Dan Lambright <>
Diffstat (limited to '')
1 files changed, 1 insertions, 0 deletions
diff --git a/ b/
index 18c8cd6..fa924dc 100755
--- a/
+++ b/
@@ -198,6 +198,7 @@ function is_bad_test ()
./tests/basic/quota-nfs.t \
./tests/basic/tier/tier_lookup_heal.t \
./tests/basic/tier/bug-1214222-directories_missing_after_attach_tier.t \
+ ./tests/basic/tier/fops-during-migration.t \
./tests/basic/tier/record-metadata-heat.t \
./tests/bugs/snapshot/bug-1109889.t \
./tests/bugs/distribute/bug-1066798.t \