From 444ffda19e2052b5fc78f7dc020de161ebee8563 Mon Sep 17 00:00:00 2001 From: Pranith Kumar K Date: Tue, 2 Sep 2014 09:40:44 +0530 Subject: storage/posix: Prefer gfid links for inode-handle Backport of http://review.gluster.org/8575 Problem: File path could change by other entry operations in-flight so if renames are in progress at the time of other operations like open, it may lead to failures. We observed that this issue can also happen while renames and readdirps/lookups are in progress because dentry-table is going stale sometimes. Fix: Prefer gfid-handles over paths for files. For directory handles prefering gfid-handles hits performance issues because it needs to resolve paths traversing up the symlinks. Tests which test if files are opened should check on gfid path after this change. So changed couple of tests to reflect the same. Note: This patch doesn't fix the issue for directories. I think a complete fix is to come up with an entry operation serialization xlator. Until then lets live with this. BUG: 1136821 Change-Id: If93e46d542a4e96a81a0639b5210330f7dbe8be0 Signed-off-by: Pranith Kumar K Reviewed-on: http://review.gluster.org/8594 Reviewed-by: Vijay Bellur Tested-by: Gluster Build System --- tests/bugs/bug-821056.t | 2 +- tests/bugs/bug-913051.t | 6 ++++-- 2 files changed, 5 insertions(+), 3 deletions(-) (limited to 'tests') diff --git a/tests/bugs/bug-821056.t b/tests/bugs/bug-821056.t index db87993ed76..8c002601066 100644 --- a/tests/bugs/bug-821056.t +++ b/tests/bugs/bug-821056.t @@ -43,7 +43,7 @@ for i in {1..1024}; do echo "open sesame" >&5 done -EXPECT_WITHIN $REOPEN_TIMEOUT "Y" gf_check_file_opened_in_brick $V0 $H0 $B0/${V0}0 $B0/${V0}0/a +EXPECT_WITHIN $REOPEN_TIMEOUT "Y" gf_check_file_opened_in_brick $V0 $H0 $B0/${V0}0 "$realpath" #close the fd exec 5>&- diff --git a/tests/bugs/bug-913051.t b/tests/bugs/bug-913051.t index 1673cc6eaf5..69845f7a554 100644 --- a/tests/bugs/bug-913051.t +++ b/tests/bugs/bug-913051.t @@ -38,10 +38,12 @@ TEST $CLI volume start $V0 force EXPECT_WITHIN $CHILD_UP_TIMEOUT "1" afr_child_up_status $V0 0 #check that the files are not opned on brick-0 +TEST stat $M0/dir/a realpatha=$(gf_get_gfid_backend_file_path $B0/${V0}0 "dir/a") EXPECT "N" gf_check_file_opened_in_brick $V0 $H0 $B0/${V0}0 "$realpatha" EXPECT "N" gf_check_file_opened_in_brick $V0 $H0 $B0/${V0}0 $B0/${V0}0/dir/a +TEST stat $M0/dir/b realpathb=$(gf_get_gfid_backend_file_path $B0/${V0}0 "dir/b") EXPECT "N" gf_check_file_opened_in_brick $V0 $H0 $B0/${V0}0 "$realpathb" EXPECT "N" gf_check_file_opened_in_brick $V0 $H0 $B0/${V0}0 $B0/${V0}0/dir/b @@ -57,8 +59,8 @@ TEST fd_write $wfd "open sesame" #trigger readv for attempting open-fd-fix in afr TEST fd_cat $rfd -EXPECT_WITHIN $REOPEN_TIMEOUT "Y" gf_check_file_opened_in_brick $V0 $H0 $B0/${V0}0 $B0/${V0}0/dir/a -EXPECT_WITHIN $REOPEN_TIMEOUT "Y" gf_check_file_opened_in_brick $V0 $H0 $B0/${V0}0 $B0/${V0}0/dir/b +EXPECT_WITHIN $REOPEN_TIMEOUT "Y" gf_check_file_opened_in_brick $V0 $H0 $B0/${V0}0 "$realpatha" +EXPECT_WITHIN $REOPEN_TIMEOUT "Y" gf_check_file_opened_in_brick $V0 $H0 $B0/${V0}0 "$realpathb" TEST fd_close $wfd TEST fd_close $rfd -- cgit