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glusterfs/0258-cluster-dht-log-error-only-if-layout-healing-is-requ.patch
Milind Changire 312c9bafe1 autobuild v3.12.2-9 
Resolves: bz#1546717 bz#1557551 bz#1558948 bz#1561999 bz#1563804
Resolves: bz#1565015 bz#1565119 bz#1565399 bz#1565577 bz#1567100
Resolves: bz#1567899 bz#1568374 bz#1568969 bz#1569490 bz#1570514
Resolves: bz#1570541 bz#1570582 bz#1571645 bz#1572087 bz#1572585
Resolves: bz#1575895
Signed-off-by: Milind Changire <mchangir@redhat.com>
2018-05-09 08:42:05 -04:00

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From 9ac423d71b9d9d8875ce2af29e2bcf5770b61d5a Mon Sep 17 00:00:00 2001
From: Raghavendra G <rgowdapp@redhat.com>
Date: Fri, 16 Mar 2018 12:16:43 +0530
Subject: [PATCH 258/260] cluster/dht: log error only if layout healing is
required
selfhealing of directory is invoked on two conditions:
1. no layout on disk or layout has some anomalies (holes/overlaps)
2. mds xattr is not set on the directory
When dht_selfheal_directory is called with a correct layout just to
set mds xattr, we see error msgs complaining about "not able to form
layout on directory", which is misleading as the layout is
correct. So, log this msg only if layout has anomalies.
>Change-Id: I4af25246fc3a2450c2426e9902d1a5b372eab125
>updates: bz#1543279
>BUG: 1543279
>Signed-off-by: Raghavendra G <rgowdapp@redhat.com>
upstream patch: https://review.gluster.org/19727
BUG: 1567100
Change-Id: I169823ec3d4455c43f575e6c4ec0735aceb54e6b
Signed-off-by: Raghavendra G <rgowdapp@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/138149
Tested-by: RHGS Build Bot <nigelb@redhat.com>
Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
---
xlators/cluster/dht/src/dht-common.h | 1 +
xlators/cluster/dht/src/dht-selfheal.c | 199 ++-------------------------------
2 files changed, 12 insertions(+), 188 deletions(-)
diff --git a/xlators/cluster/dht/src/dht-common.h b/xlators/cluster/dht/src/dht-common.h
index a785876..9d429af 100644
--- a/xlators/cluster/dht/src/dht-common.h
+++ b/xlators/cluster/dht/src/dht-common.h
@@ -312,6 +312,7 @@ struct dht_local {
uint32_t overlaps_cnt;
uint32_t down;
uint32_t misc;
+ uint32_t missing_cnt;
dht_selfheal_dir_cbk_t dir_cbk;
dht_selfheal_layout_t healer;
dht_need_heal_t should_heal;
diff --git a/xlators/cluster/dht/src/dht-selfheal.c b/xlators/cluster/dht/src/dht-selfheal.c
index 53c59a2..5812f12 100644
--- a/xlators/cluster/dht/src/dht-selfheal.c
+++ b/xlators/cluster/dht/src/dht-selfheal.c
@@ -359,7 +359,8 @@ dht_should_heal_layout (call_frame_t *frame, dht_layout_t **heal,
ret = dht_layout_anomalies (frame->this, &local->loc, *ondisk,
&local->selfheal.hole_cnt,
&local->selfheal.overlaps_cnt,
- NULL, &local->selfheal.down,
+ &local->selfheal.missing_cnt,
+ &local->selfheal.down,
&local->selfheal.misc, NULL);
if (ret < 0)
@@ -1015,115 +1016,6 @@ dht_layout_index_from_conf (dht_layout_t *layout, xlator_t *xlator)
return i;
}
-
-static int
-dht_selfheal_dir_xattr_for_nameless_lookup (call_frame_t *frame, loc_t *loc,
- dht_layout_t *layout)
-{
- dht_local_t *local = NULL;
- int missing_xattr = 0;
- int i = 0;
- xlator_t *this = NULL;
- dht_conf_t *conf = NULL;
- dht_layout_t *dummy = NULL;
- int j = 0;
-
- local = frame->local;
- this = frame->this;
- conf = this->private;
-
- for (i = 0; i < layout->cnt; i++) {
- if (layout->list[i].err != -1 || !layout->list[i].stop) {
- /* err != -1 would mean xattr present on the directory
- or the directory is non existent.
- !layout->list[i].stop would mean layout absent
- */
-
- continue;
- }
- missing_xattr++;
- }
-
- /* Also account for subvolumes with no-layout. Used for zero'ing out
- the layouts and for setting quota key's if present */
-
- /* Send where either the subvol is not part of layout,
- * or it is part of the layout but error is non-zero but error
- * is not equal to -1 or ENOENT.
- */
-
- for (i = 0; i < conf->subvolume_cnt; i++) {
- if (dht_is_subvol_part_of_layout (layout, conf->subvolumes[i])
- == _gf_false) {
- missing_xattr++;
- continue;
- }
-
- j = dht_layout_index_from_conf (layout, conf->subvolumes[i]);
-
- if ((j != -1) && (layout->list[j].err != -1) &&
- (layout->list[j].err != 0) &&
- (layout->list[j].err != ENOENT)) {
- missing_xattr++;
- }
-
- }
-
-
- gf_msg_trace (this->name, 0,
- "%d subvolumes missing xattr for %s",
- missing_xattr, loc->path);
-
- if (missing_xattr == 0) {
- dht_selfheal_dir_finish (frame, this, 0, 1);
- return 0;
- }
-
- local->call_cnt = missing_xattr;
-
- if (gf_log_get_loglevel () >= GF_LOG_DEBUG)
- dht_log_new_layout_for_dir_selfheal (this, loc, layout);
-
- for (i = 0; i < layout->cnt; i++) {
- if (layout->list[i].err != -1 || !layout->list[i].stop)
- continue;
-
- dht_selfheal_dir_xattr_persubvol (frame, loc, layout, i, NULL);
-
- if (--missing_xattr == 0)
- break;
- }
-
- dummy = dht_layout_new (this, 1);
- if (!dummy)
- goto out;
-
- for (i = 0; i < conf->subvolume_cnt && missing_xattr; i++) {
- if (dht_is_subvol_part_of_layout (layout, conf->subvolumes[i])
- == _gf_false) {
- dht_selfheal_dir_xattr_persubvol (frame, loc, dummy, 0,
- conf->subvolumes[i]);
- missing_xattr--;
- continue;
- }
-
- j = dht_layout_index_from_conf (layout, conf->subvolumes[i]);
-
- if ((j != -1) && (layout->list[j].err != -1) &&
- (layout->list[j].err != ENOENT) &&
- (layout->list[j].err != 0)) {
- dht_selfheal_dir_xattr_persubvol (frame, loc, dummy, 0,
- conf->subvolumes[i]);
- missing_xattr--;
- }
- }
-
- dht_layout_unref (this, dummy);
-out:
- return 0;
-
-}
-
int
dht_selfheal_dir_setattr_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int op_ret, int op_errno, struct iatt *statpre,
@@ -2296,7 +2188,8 @@ dht_selfheal_directory (call_frame_t *frame, dht_selfheal_dir_cbk_t dir_cbk,
dht_layout_anomalies (this, loc, layout,
&local->selfheal.hole_cnt,
&local->selfheal.overlaps_cnt,
- NULL, &local->selfheal.down,
+ &local->selfheal.missing_cnt,
+ &local->selfheal.down,
&local->selfheal.misc, NULL);
down = local->selfheal.down;
@@ -2325,14 +2218,14 @@ dht_selfheal_directory (call_frame_t *frame, dht_selfheal_dir_cbk_t dir_cbk,
dht_layout_sort_volname (layout);
local->heal_layout = _gf_true;
- ret = dht_selfheal_dir_getafix (frame, loc, layout);
- if (ret == -1) {
- gf_msg (this->name, GF_LOG_INFO, 0,
- DHT_MSG_DIR_SELFHEAL_FAILED,
- "Directory selfheal failed: "
- "Unable to form layout for directory %s",
- loc->path);
+ /* Ignore return value as it can be inferred from result of
+ * dht_layout_anomalies
+ */
+ dht_selfheal_dir_getafix (frame, loc, layout);
+
+ if (!(local->selfheal.hole_cnt || local->selfheal.overlaps_cnt ||
+ local->selfheal.missing_cnt)) {
local->heal_layout = _gf_false;
}
@@ -2352,76 +2245,6 @@ sorry_no_fix:
}
int
-dht_selfheal_directory_for_nameless_lookup (call_frame_t *frame,
- dht_selfheal_dir_cbk_t dir_cbk,
- loc_t *loc, dht_layout_t *layout)
-{
- dht_local_t *local = NULL;
- uint32_t down = 0;
- uint32_t misc = 0;
- int ret = 0;
- xlator_t *this = NULL;
-
- local = frame->local;
- this = frame->this;
- dht_layout_anomalies (this, loc, layout,
- &local->selfheal.hole_cnt,
- &local->selfheal.overlaps_cnt,
- NULL, &local->selfheal.down,
- &local->selfheal.misc, NULL);
-
- down = local->selfheal.down;
- misc = local->selfheal.misc;
-
- local->selfheal.dir_cbk = dir_cbk;
- local->selfheal.layout = dht_layout_ref (this, layout);
-
- if (down) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- DHT_MSG_SUBVOL_DOWN_ERROR,
- "%d subvolumes down -- not fixing", down);
- ret = 0;
- goto sorry_no_fix;
- }
-
- if (misc) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- DHT_MSG_SUBVOL_ERROR,
- "%d subvolumes have unrecoverable errors", misc);
- ret = 0;
- goto sorry_no_fix;
- }
-
- dht_layout_sort_volname (layout);
- ret = dht_selfheal_dir_getafix (frame, loc, layout);
-
- if (ret == -1) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- DHT_MSG_LAYOUT_FORM_FAILED,
- "not able to form layout for the directory");
- goto sorry_no_fix;
- }
-
- ret = dht_selfheal_layout_lock (frame, layout, _gf_false,
- dht_selfheal_dir_xattr_for_nameless_lookup,
- dht_should_heal_layout);
-
- if (ret < 0) {
- goto sorry_no_fix;
- }
-
- return 0;
-
-sorry_no_fix:
- /* TODO: need to put appropriate local->op_errno */
- dht_selfheal_dir_finish (frame, this, ret, 1);
-
- return 0;
-
-
-}
-
-int
dht_selfheal_restore (call_frame_t *frame, dht_selfheal_dir_cbk_t dir_cbk,
loc_t *loc, dht_layout_t *layout)
{
--
1.8.3.1
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