From 4a8384fe76aeef652554c48df737d3178eb0160c Mon Sep 17 00:00:00 2001 From: Krutika Dhananjay Date: Thu, 19 Feb 2015 19:35:17 +0530 Subject: cluster/afr: Do not increment healed_count if no healing was performed PROBLEM: When file modifications are happening while index heal is launched, index healer could pick up entries which appeared in indices/xattrop transiently during the course of the operations on the mount point, and do not really need any heal. This will cause index healer to keep doing index-heal in a loop as long as it finds this entry, by believing that it did successfully heal some gfids even when it didn't. FIX: afr_selfheal() now returns a 1 to indicate that it did not (need to) heal a given gfid. afr_shd_selfheal() will not increment healed_count whenever afr_selfheal() returns a 1. Change-Id: I0d97e11392a032a852e8c6508f691300ef0e5b98 BUG: 1194305 Signed-off-by: Krutika Dhananjay Reviewed-on: http://review.gluster.org/9713 Reviewed-by: Pranith Kumar Karampuri Tested-by: Pranith Kumar Karampuri Reviewed-by: Ravishankar N Tested-by: Gluster Build System --- xlators/cluster/afr/src/afr-self-heal-common.c | 59 ++++++++++++++++++-------- 1 file changed, 41 insertions(+), 18 deletions(-) (limited to 'xlators/cluster/afr/src/afr-self-heal-common.c') diff --git a/xlators/cluster/afr/src/afr-self-heal-common.c b/xlators/cluster/afr/src/afr-self-heal-common.c index e9d853c4ecd..74d340bc808 100644 --- a/xlators/cluster/afr/src/afr-self-heal-common.c +++ b/xlators/cluster/afr/src/afr-self-heal-common.c @@ -1310,23 +1310,18 @@ out: return ret; } -/* - * This is the entry point for healing a given GFID - */ - int -afr_selfheal (xlator_t *this, uuid_t gfid) +afr_selfheal_do (call_frame_t *frame, xlator_t *this, uuid_t gfid) { - inode_t *inode = NULL; - call_frame_t *frame = NULL; - int ret = -1, entry_ret = 0, metadata_ret = 0, data_ret = 0; - gf_boolean_t data_selfheal = _gf_false; - gf_boolean_t metadata_selfheal = _gf_false; - gf_boolean_t entry_selfheal = _gf_false; - - frame = afr_frame_create (this); - if (!frame) - goto out; + int ret = -1; + int entry_ret = 1; + int metadata_ret = 1; + int data_ret = 1; + int or_ret = 0; + inode_t *inode = NULL; + gf_boolean_t data_selfheal = _gf_false; + gf_boolean_t metadata_selfheal = _gf_false; + gf_boolean_t entry_selfheal = _gf_false; ret = afr_selfheal_unlocked_inspect (frame, this, gfid, &inode, &data_selfheal, @@ -1344,14 +1339,42 @@ afr_selfheal (xlator_t *this, uuid_t gfid) if (entry_selfheal) entry_ret = afr_selfheal_entry (frame, this, inode); + or_ret = (data_ret | metadata_ret | entry_ret); + if (data_ret == -EIO || metadata_ret == -EIO || entry_ret == -EIO) ret = -EIO; + else if (data_ret == 1 && metadata_ret == 1 && entry_ret == 1) + ret = 1; + else if (or_ret < 0) + ret = or_ret; else - ret = (data_ret | metadata_ret | entry_ret); + ret = 0; - inode_forget (inode, 1); - inode_unref (inode); out: + if (inode) { + inode_forget (inode, 1); + inode_unref (inode); + } + return ret; +} +/* + * This is the entry point for healing a given GFID + * The function returns 0 if self-heal was successful, appropriate errno + * in case of a failure and 1 in case self-heal was never needed on the gfid. + */ + +int +afr_selfheal (xlator_t *this, uuid_t gfid) +{ + int ret = -1; + call_frame_t *frame = NULL; + + frame = afr_frame_create (this); + if (!frame) + return ret; + + ret = afr_selfheal_do (frame, this, gfid); + if (frame) AFR_STACK_DESTROY (frame); -- cgit