diff options
| author | Ashish Pandey <aspandey@redhat.com> | 2015-11-26 14:35:49 +0530 |
|---|---|---|
| committer | Pranith Kumar Karampuri <pkarampu@redhat.com> | 2015-12-15 00:35:59 -0800 |
| commit | c4f6521dfe6a44cee2f61ae41fc26faaf785372d (patch) | |
| tree | 2dc31b5470c7a1b3213deb4b544a2fb341c9c353 /tests/basic/ec | |
| parent | be438f9aa70cce9d14d72d7cf8ddee89738db36c (diff) | |
storage/posix: Implement .unlink directory
Problem: For EC volume, If a file descriptor is open and
file has been unlinked, any further write on that fd will
fail. When a write request comes, EC internally reads some
blocks using anonymous fd. This read will fail as the file
has already been unlinked.
Solution: To solve this issue, we are using .unlink directory
to keep track of unlinked file. If a file is to be unlinked
while its fd is open, move this to .unlink directory and unlink
it from .glusterfs and real path. Once all the fd will be closed,
remove this entry form .unlink directory.
Change-Id: I8344edb0d340bdb883dc46458c16edbc336916b9
BUG: 1286029
Signed-off-by: Ashish Pandey <aspandey@redhat.com>
Reviewed-on: http://review.gluster.org/12816
Reviewed-by: Krutika Dhananjay <kdhananj@redhat.com>
Reviewed-by: Xavier Hernandez <xhernandez@datalab.es>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Diffstat (limited to 'tests/basic/ec')
| -rw-r--r-- | tests/basic/ec/ec-anonymous-fd.t | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/tests/basic/ec/ec-anonymous-fd.t b/tests/basic/ec/ec-anonymous-fd.t new file mode 100644 index 00000000000..a61628182ef --- /dev/null +++ b/tests/basic/ec/ec-anonymous-fd.t @@ -0,0 +1,42 @@ +#!/bin/bash + +. $(dirname $0)/../../include.rc +. $(dirname $0)/../../volume.rc +. $(dirname $0)/../../fileio.rc + +cleanup +function num_entries { + ls -l $1 | wc -l +} + +TEST glusterd +TEST pidof glusterd +TEST $CLI volume create $V0 disperse 6 redundancy 2 $H0:$B0/${V0}{0..5} +TEST $CLI volume start $V0 +TEST glusterfs --entry-timeout=0 --attribute-timeout=0 -s $H0 --volfile-id $V0 $M0 +EXPECT_WITHIN $CHILD_UP_TIMEOUT "6" ec_child_up_count $V0 0 + +fd1=`fd_available` +TEST fd_open $fd1 'w' $M0/file1 +TEST fd_write $fd1 testing +TEST cat $M0/file1 +TEST rm -rf $M0/file1 +TEST fd_write $fd1 testing +TEST fd_write $fd1 testing +TEST fd_write $fd1 testing + +EXPECT "^2$" num_entries $B0/${V0}0/.glusterfs/unlink/ +EXPECT "^2$" num_entries $B0/${V0}1/.glusterfs/unlink/ +EXPECT "^2$" num_entries $B0/${V0}2/.glusterfs/unlink/ +EXPECT "^2$" num_entries $B0/${V0}3/.glusterfs/unlink/ +EXPECT "^2$" num_entries $B0/${V0}4/.glusterfs/unlink/ +EXPECT "^2$" num_entries $B0/${V0}5/.glusterfs/unlink/ +TEST fd_close $fd1; +EXPECT_WITHIN $UNLINK_TIMEOUT "^1$" num_entries $B0/${V0}0/.glusterfs/unlink/ +EXPECT_WITHIN $UNLINK_TIMEOUT "^1$" num_entries $B0/${V0}1/.glusterfs/unlink/ +EXPECT_WITHIN $UNLINK_TIMEOUT "^1$" num_entries $B0/${V0}2/.glusterfs/unlink/ +EXPECT_WITHIN $UNLINK_TIMEOUT "^1$" num_entries $B0/${V0}3/.glusterfs/unlink/ +EXPECT_WITHIN $UNLINK_TIMEOUT "^1$" num_entries $B0/${V0}4/.glusterfs/unlink/ +EXPECT_WITHIN $UNLINK_TIMEOUT "^1$" num_entries $B0/${V0}5/.glusterfs/unlink/ + +cleanup; |