From 0c485548b4126ed907dec9941209b1b1312d0b5d Mon Sep 17 00:00:00 2001
From: Sheetal Pamecha <spamecha@redhat.com>
Date: Wed, 19 Jun 2019 15:08:58 +0530
Subject: [PATCH 215/221] posix: modify storage.reserve option to take size and
percent
* reverting changes made in
https://review.gluster.org/#/c/glusterfs/+/21686/
* Now storage.reserve can take value in percent or bytes
> fixes: bz#1651445
> Change-Id: Id4826210ec27991c55b17d1fecd90356bff3e036
> Signed-off-by: Sheetal Pamecha <spamecha@redhat.com>
> Cherry pick from commit 5cbc87d8b8f1287e81c38b793b8d13b057208c62
> Reviewed on upstream link https://review.gluster.org/#/c/glusterfs/+/22900/
BUG: 1573077
Change-Id: Id4826210ec27991c55b17d1fecd90356bff3e036
Signed-off-by: Sheetal Pamecha <spamecha@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/174744
Tested-by: RHGS Build Bot <nigelb@redhat.com>
Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
---
tests/bugs/posix/bug-1651445.t | 29 +++++++++-------------
xlators/mgmt/glusterd/src/glusterd-volume-set.c | 33 -------------------------
xlators/storage/posix/src/posix-common.c | 33 +++++++++++--------------
xlators/storage/posix/src/posix-helpers.c | 26 +++++++++----------
xlators/storage/posix/src/posix-inode-fd-ops.c | 15 ++++++-----
xlators/storage/posix/src/posix.h | 4 +--
6 files changed, 51 insertions(+), 89 deletions(-)
diff --git a/tests/bugs/posix/bug-1651445.t b/tests/bugs/posix/bug-1651445.t
index f6f1833..5248d47 100644
--- a/tests/bugs/posix/bug-1651445.t
+++ b/tests/bugs/posix/bug-1651445.t
@@ -17,39 +17,34 @@ TEST $CLI volume start $V0
TEST glusterfs --volfile-id=/$V0 --volfile-server=$H0 $M0
-TEST $CLI volume set $V0 storage.reserve-size 10MB
+#Setting the size in bytes
+TEST $CLI volume set $V0 storage.reserve 40MB
-#No effect as priority to reserve-size
-TEST $CLI volume set $V0 storage.reserve 20
+#wait 5s to reset disk_space_full flag
+sleep 5
TEST dd if=/dev/zero of=$M0/a bs=100M count=1
-sleep 5
+TEST dd if=/dev/zero of=$M0/b bs=10M count=1
-#Below dd confirms posix is giving priority to reserve-size
-TEST dd if=/dev/zero of=$M0/b bs=40M count=1
+# Wait 5s to update disk_space_full flag because thread check disk space
+# after every 5s
sleep 5
+# setup_lvm create lvm partition of 150M and 40M are reserve so after
+# consuming more than 110M next dd should fail
TEST ! dd if=/dev/zero of=$M0/c bs=5M count=1
rm -rf $M0/*
-#Size will reserve from the previously set reserve option = 20%
-TEST $CLI volume set $V0 storage.reserve-size 0
-#Overwrite reserve option
-TEST $CLI volume set $V0 storage.reserve-size 40MB
+#Setting the size in percent and repeating the above steps
+TEST $CLI volume set $V0 storage.reserve 40
-#wait 5s to reset disk_space_full flag
sleep 5
-TEST dd if=/dev/zero of=$M0/a bs=100M count=1
+TEST dd if=/dev/zero of=$M0/a bs=80M count=1
TEST dd if=/dev/zero of=$M0/b bs=10M count=1
-# Wait 5s to update disk_space_full flag because thread check disk space
-# after every 5s
-
sleep 5
-# setup_lvm create lvm partition of 150M and 40M are reserve so after
-# consuming more than 110M next dd should fail
TEST ! dd if=/dev/zero of=$M0/c bs=5M count=1
TEST $CLI volume stop $V0
diff --git a/xlators/mgmt/glusterd/src/glusterd-volume-set.c b/xlators/mgmt/glusterd/src/glusterd-volume-set.c
index 3a7ab83..7a83124 100644
--- a/xlators/mgmt/glusterd/src/glusterd-volume-set.c
+++ b/xlators/mgmt/glusterd/src/glusterd-volume-set.c
@@ -1231,30 +1231,6 @@ out:
return ret;
}
-static int
-validate_size(glusterd_volinfo_t *volinfo, dict_t *dict, char *key, char *value,
- char **op_errstr)
-{
- xlator_t *this = NULL;
- uint64_t size = 0;
- int ret = -1;
-
- this = THIS;
- GF_VALIDATE_OR_GOTO("glusterd", this, out);
- ret = gf_string2bytesize_uint64(value, &size);
- if (ret < 0) {
- gf_asprintf(op_errstr,
- "%s is not a valid size. %s "
- "expects a valid value in bytes",
- value, key);
- gf_msg(this->name, GF_LOG_ERROR, 0, GD_MSG_INVALID_ENTRY, "%s",
- *op_errstr);
- }
-out:
- gf_msg_debug("glusterd", 0, "Returning %d", ret);
-
- return ret;
-}
/* dispatch table for VOLUME SET
* -----------------------------
@@ -2854,15 +2830,6 @@ struct volopt_map_entry glusterd_volopt_map[] = {
.op_version = GD_OP_VERSION_3_13_0,
},
{
- .key = "storage.reserve-size",
- .voltype = "storage/posix",
- .value = "0",
- .validate_fn = validate_size,
- .description = "If set, priority will be given to "
- "storage.reserve-size over storage.reserve",
- .op_version = GD_OP_VERSION_7_0,
- },
- {
.option = "health-check-timeout",
.key = "storage.health-check-timeout",
.type = NO_DOC,
diff --git a/xlators/storage/posix/src/posix-common.c b/xlators/storage/posix/src/posix-common.c
index 0f70af5..bfe2cb0 100644
--- a/xlators/storage/posix/src/posix-common.c
+++ b/xlators/storage/posix/src/posix-common.c
@@ -345,12 +345,14 @@ posix_reconfigure(xlator_t *this, dict_t *options)
" fallback to <hostname>:<export>");
}
- GF_OPTION_RECONF("reserve-size", priv->disk_reserve_size, options, size,
+ GF_OPTION_RECONF("reserve", priv->disk_reserve, options, percent_or_size,
out);
+ /* option can be any one of percent or bytes */
+ priv->disk_unit = 0;
+ if (priv->disk_reserve < 100.0)
+ priv->disk_unit = 'p';
- GF_OPTION_RECONF("reserve", priv->disk_reserve_percent, options, uint32,
- out);
- if (priv->disk_reserve_size || priv->disk_reserve_percent) {
+ if (priv->disk_reserve) {
ret = posix_spawn_disk_space_check_thread(this);
if (ret) {
gf_msg(this->name, GF_LOG_INFO, 0, P_MSG_DISK_SPACE_CHECK_FAILED,
@@ -975,11 +977,15 @@ posix_init(xlator_t *this)
_private->disk_space_check_active = _gf_false;
_private->disk_space_full = 0;
- GF_OPTION_INIT("reserve-size", _private->disk_reserve_size, size, out);
- GF_OPTION_INIT("reserve", _private->disk_reserve_percent, uint32, out);
+ GF_OPTION_INIT("reserve", _private->disk_reserve, percent_or_size, out);
+
+ /* option can be any one of percent or bytes */
+ _private->disk_unit = 0;
+ if (_private->disk_reserve < 100.0)
+ _private->disk_unit = 'p';
- if (_private->disk_reserve_size || _private->disk_reserve_percent) {
+ if (_private->disk_reserve) {
ret = posix_spawn_disk_space_check_thread(this);
if (ret) {
gf_msg(this->name, GF_LOG_INFO, 0, P_MSG_DISK_SPACE_CHECK_FAILED,
@@ -1221,23 +1227,14 @@ struct volume_options posix_options[] = {
.op_version = {GD_OP_VERSION_4_0_0},
.flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC},
{.key = {"reserve"},
- .type = GF_OPTION_TYPE_INT,
+ .type = GF_OPTION_TYPE_PERCENT_OR_SIZET,
.min = 0,
.default_value = "1",
.validate = GF_OPT_VALIDATE_MIN,
- .description = "Percentage of disk space to be reserved."
+ .description = "Percentage/Size of disk space to be reserved."
" Set to 0 to disable",
.op_version = {GD_OP_VERSION_3_13_0},
.flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC},
- {.key = {"reserve-size"},
- .type = GF_OPTION_TYPE_SIZET,
- .min = 0,
- .default_value = "0",
- .validate = GF_OPT_VALIDATE_MIN,
- .description = "size in megabytes to be reserved for disk space."
- " Set to 0 to disable",
- .op_version = {GD_OP_VERSION_7_0},
- .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC},
{.key = {"batch-fsync-mode"},
.type = GF_OPTION_TYPE_STR,
.default_value = "reverse-fsync",
diff --git a/xlators/storage/posix/src/posix-helpers.c b/xlators/storage/posix/src/posix-helpers.c
index 849db3d..07169b5 100644
--- a/xlators/storage/posix/src/posix-helpers.c
+++ b/xlators/storage/posix/src/posix-helpers.c
@@ -2246,11 +2246,11 @@ posix_disk_space_check(xlator_t *this)
struct posix_private *priv = NULL;
char *subvol_path = NULL;
int op_ret = 0;
- uint64_t size = 0;
- int percent = 0;
+ double size = 0;
+ double percent = 0;
struct statvfs buf = {0};
- uint64_t totsz = 0;
- uint64_t freesz = 0;
+ double totsz = 0;
+ double freesz = 0;
GF_VALIDATE_OR_GOTO(this->name, this, out);
priv = this->private;
@@ -2258,14 +2258,6 @@ posix_disk_space_check(xlator_t *this)
subvol_path = priv->base_path;
- if (priv->disk_reserve_size) {
- size = priv->disk_reserve_size;
- } else {
- percent = priv->disk_reserve_percent;
- totsz = (buf.f_blocks * buf.f_bsize);
- size = ((totsz * percent) / 100);
- }
-
op_ret = sys_statvfs(subvol_path, &buf);
if (op_ret == -1) {
@@ -2273,8 +2265,16 @@ posix_disk_space_check(xlator_t *this)
"statvfs failed on %s", subvol_path);
goto out;
}
- freesz = (buf.f_bfree * buf.f_bsize);
+ if (priv->disk_unit == 'p') {
+ percent = priv->disk_reserve;
+ totsz = (buf.f_blocks * buf.f_bsize);
+ size = ((totsz * percent) / 100);
+ } else {
+ size = priv->disk_reserve;
+ }
+
+ freesz = (buf.f_bfree * buf.f_bsize);
if (freesz <= size) {
priv->disk_space_full = 1;
} else {
diff --git a/xlators/storage/posix/src/posix-inode-fd-ops.c b/xlators/storage/posix/src/posix-inode-fd-ops.c
index b92c411..fc847d6 100644
--- a/xlators/storage/posix/src/posix-inode-fd-ops.c
+++ b/xlators/storage/posix/src/posix-inode-fd-ops.c
@@ -720,7 +720,7 @@ posix_do_fallocate(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t flags,
thread after every 5 sec sleep to working correctly storage.reserve
option behaviour
*/
- if (priv->disk_reserve_size || priv->disk_reserve_percent)
+ if (priv->disk_reserve)
posix_disk_space_check(this);
DISK_SPACE_CHECK_AND_GOTO(frame, priv, xdata, ret, ret, out);
@@ -2306,7 +2306,7 @@ posix_statfs(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
};
struct posix_private *priv = NULL;
int shared_by = 1;
- int percent = 0;
+ double percent = 0;
uint64_t reserved_blocks = 0;
VALIDATE_OR_GOTO(frame, out);
@@ -2332,11 +2332,14 @@ posix_statfs(call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
goto out;
}
- if (priv->disk_reserve_size) {
- reserved_blocks = priv->disk_reserve_size / buf.f_bsize;
+ if (priv->disk_unit == 'p') {
+ percent = priv->disk_reserve;
+ reserved_blocks = (((buf.f_blocks * percent) / 100) + 0.5);
} else {
- percent = priv->disk_reserve_percent;
- reserved_blocks = (buf.f_blocks * percent) / 100;
+ if (buf.f_bsize) {
+ reserved_blocks = (priv->disk_reserve + buf.f_bsize - 1) /
+ buf.f_bsize;
+ }
}
if (buf.f_bfree > reserved_blocks) {
diff --git a/xlators/storage/posix/src/posix.h b/xlators/storage/posix/src/posix.h
index 4364b96..b0935a7 100644
--- a/xlators/storage/posix/src/posix.h
+++ b/xlators/storage/posix/src/posix.h
@@ -225,8 +225,8 @@ struct posix_private {
pthread_t health_check;
gf_boolean_t health_check_active;
- uint32_t disk_reserve_percent;
- uint64_t disk_reserve_size;
+ double disk_reserve;
+ char disk_unit;
uint32_t disk_space_full;
pthread_t disk_space_check;
gf_boolean_t disk_space_check_active;
--
1.8.3.1