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authorAshish Pandey <aspandey@redhat.com>2015-11-26 14:35:49 +0530
committerPranith Kumar Karampuri <pkarampu@redhat.com>2015-12-15 00:35:59 -0800
commitc4f6521dfe6a44cee2f61ae41fc26faaf785372d (patch)
tree2dc31b5470c7a1b3213deb4b544a2fb341c9c353 /tests/basic/ec
parentbe438f9aa70cce9d14d72d7cf8ddee89738db36c (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.t42
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;