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-rw-r--r--xlators/cluster/dht/src/nufa.c876
1 files changed, 395 insertions, 481 deletions
diff --git a/xlators/cluster/dht/src/nufa.c b/xlators/cluster/dht/src/nufa.c
index 09388cbb0..e934acdf0 100644
--- a/xlators/cluster/dht/src/nufa.c
+++ b/xlators/cluster/dht/src/nufa.c
@@ -1,20 +1,11 @@
/*
- Copyright (c) 2008-2010 Gluster, Inc. <http://www.gluster.com>
- This file is part of GlusterFS.
-
- GlusterFS is free software; you can redistribute it and/or modify
- it under the terms of the GNU Affero General Public License as published
- by the Free Software Foundation; either version 3 of the License,
- or (at your option) any later version.
-
- GlusterFS is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Affero General Public License for more details.
-
- You should have received a copy of the GNU Affero General Public License
- along with this program. If not, see
- <http://www.gnu.org/licenses/>.
+ Copyright (c) 2008-2012 Red Hat, Inc. <http://www.redhat.com>
+ This file is part of GlusterFS.
+
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
*/
@@ -23,13 +14,15 @@
#include "config.h"
#endif
-#include "dht-common.c"
+#include "dht-common.h"
/* TODO: all 'TODO's in dht.c holds good */
+extern struct volume_options options[];
+
int
nufa_local_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
- int op_ret, int op_errno,
+ int op_ret, int op_errno,
inode_t *inode, struct iatt *stbuf, dict_t *xattr,
struct iatt *postparent)
{
@@ -41,67 +34,61 @@ nufa_local_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
loc_t *loc = NULL;
int i = 0;
call_frame_t *prev = NULL;
- int call_cnt = 0;
+ int call_cnt = 0;
int ret = 0;
-
conf = this->private;
prev = cookie;
local = frame->local;
loc = &local->loc;
- if (ENTRY_MISSING (op_ret, op_errno)) {
- if (conf->search_unhashed) {
- local->op_errno = ENOENT;
- dht_lookup_everywhere (frame, this, loc);
- return 0;
- }
- }
+ if (ENTRY_MISSING (op_ret, op_errno)) {
+ if (conf->search_unhashed) {
+ local->op_errno = ENOENT;
+ dht_lookup_everywhere (frame, this, loc);
+ return 0;
+ }
+ }
if (op_ret == -1)
goto out;
- is_linkfile = check_is_linkfile (inode, stbuf, xattr);
+ is_linkfile = check_is_linkfile (inode, stbuf, xattr,
+ conf->link_xattr_name);
is_dir = check_is_dir (inode, stbuf, xattr);
if (!is_dir && !is_linkfile) {
/* non-directory and not a linkfile */
-
- dht_itransform (this, prev->this, stbuf->ia_ino,
- &stbuf->ia_ino);
-
- ret = dht_layout_preset (this, prev->this, inode);
- if (ret < 0) {
- gf_log (this->name, GF_LOG_DEBUG,
- "could not set pre-set layout for subvol %s",
- prev->this->name);
- op_ret = -1;
- op_errno = EINVAL;
- goto err;
- }
+ ret = dht_layout_preset (this, prev->this, inode);
+ if (ret < 0) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "could not set pre-set layout for subvol %s",
+ prev->this->name);
+ op_ret = -1;
+ op_errno = EINVAL;
+ goto err;
+ }
goto out;
}
if (is_dir) {
call_cnt = conf->subvolume_cnt;
- local->call_cnt = call_cnt;
+ local->call_cnt = call_cnt;
local->inode = inode_ref (inode);
local->xattr = dict_ref (xattr);
- local->op_ret = 0;
- local->op_errno = 0;
+ local->op_ret = 0;
+ local->op_errno = 0;
- local->layout = dht_layout_new (this, conf->subvolume_cnt);
- if (!local->layout) {
- op_ret = -1;
- op_errno = ENOMEM;
- gf_log (this->name, GF_LOG_DEBUG,
- "memory allocation failed :(");
- goto err;
- }
+ local->layout = dht_layout_new (this, conf->subvolume_cnt);
+ if (!local->layout) {
+ op_ret = -1;
+ op_errno = ENOMEM;
+ goto err;
+ }
for (i = 0; i < call_cnt; i++) {
STACK_WIND (frame, dht_lookup_dir_cbk,
@@ -118,53 +105,52 @@ nufa_local_lookup_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
gf_log (this->name, GF_LOG_DEBUG,
"linkfile not having link subvolume. path=%s",
loc->path);
- dht_lookup_everywhere (frame, this, loc);
- return 0;
+ dht_lookup_everywhere (frame, this, loc);
+ return 0;
}
- STACK_WIND (frame, dht_lookup_linkfile_cbk,
- subvol, subvol->fops->lookup,
- &local->loc, local->xattr_req);
+ STACK_WIND (frame, dht_lookup_linkfile_cbk,
+ subvol, subvol->fops->lookup,
+ &local->loc, local->xattr_req);
}
return 0;
out:
- if (!local->hashed_subvol) {
- gf_log (this->name, GF_LOG_DEBUG,
- "no subvolume in layout for path=%s",
- local->loc.path);
+ if (!local->hashed_subvol) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "no subvolume in layout for path=%s",
+ local->loc.path);
local->op_errno = ENOENT;
dht_lookup_everywhere (frame, this, loc);
return 0;
- }
+ }
- STACK_WIND (frame, dht_lookup_cbk,
- local->hashed_subvol, local->hashed_subvol->fops->lookup,
- &local->loc, local->xattr_req);
+ STACK_WIND (frame, dht_lookup_cbk,
+ local->hashed_subvol, local->hashed_subvol->fops->lookup,
+ &local->loc, local->xattr_req);
- return 0;
+ return 0;
- err:
+err:
DHT_STACK_UNWIND (lookup, frame, op_ret, op_errno,
- inode, stbuf, xattr, NULL);
+ inode, stbuf, xattr, postparent);
return 0;
}
int
nufa_lookup (call_frame_t *frame, xlator_t *this,
- loc_t *loc, dict_t *xattr_req)
+ loc_t *loc, dict_t *xattr_req)
{
xlator_t *hashed_subvol = NULL;
- xlator_t *cached_subvol = NULL;
xlator_t *subvol = NULL;
dht_local_t *local = NULL;
- dht_conf_t *conf = NULL;
+ dht_conf_t *conf = NULL;
int ret = -1;
int op_errno = -1;
- dht_layout_t *layout = NULL;
- int i = 0;
- int call_cnt = 0;
+ dht_layout_t *layout = NULL;
+ int i = 0;
+ int call_cnt = 0;
VALIDATE_OR_GOTO (frame, err);
@@ -173,40 +159,26 @@ nufa_lookup (call_frame_t *frame, xlator_t *this,
VALIDATE_OR_GOTO (loc->inode, err);
VALIDATE_OR_GOTO (loc->path, err);
- conf = this->private;
+ conf = this->private;
- local = dht_local_init (frame);
- if (!local) {
- op_errno = ENOMEM;
- gf_log (this->name, GF_LOG_ERROR,
- "Out of memory");
- goto err;
- }
-
- ret = loc_dup (loc, &local->loc);
- if (ret == -1) {
- op_errno = errno;
- gf_log (this->name, GF_LOG_DEBUG,
- "copying location failed for path=%s",
- loc->path);
+ local = dht_local_init (frame, loc, NULL, GF_FOP_LOOKUP);
+ if (!local) {
+ op_errno = ENOMEM;
goto err;
}
- if (xattr_req) {
- local->xattr_req = dict_ref (xattr_req);
- } else {
- local->xattr_req = dict_new ();
- }
+ if (xattr_req) {
+ local->xattr_req = dict_ref (xattr_req);
+ } else {
+ local->xattr_req = dict_new ();
+ }
- hashed_subvol = dht_subvol_get_hashed (this, &local->loc);
- cached_subvol = dht_subvol_get_cached (this, local->loc.inode);
+ hashed_subvol = dht_subvol_get_hashed (this, &local->loc);
- local->cached_subvol = cached_subvol;
- local->hashed_subvol = hashed_subvol;
+ local->hashed_subvol = hashed_subvol;
if (is_revalidate (loc)) {
- local->layout = layout = dht_layout_get (this, loc->inode);
-
+ layout = local->layout;
if (!layout) {
gf_log (this->name, GF_LOG_DEBUG,
"revalidate without cache. path=%s",
@@ -215,25 +187,24 @@ nufa_lookup (call_frame_t *frame, xlator_t *this,
goto err;
}
- if (layout->gen && (layout->gen < conf->gen)) {
- gf_log (this->name, GF_LOG_DEBUG,
- "incomplete layout failure for path=%s",
- loc->path);
+ if (layout->gen && (layout->gen < conf->gen)) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "incomplete layout failure for path=%s",
+ loc->path);
dht_layout_unref (this, local->layout);
- goto do_fresh_lookup;
- }
+ goto do_fresh_lookup;
+ }
- local->inode = inode_ref (loc->inode);
- local->ia_ino = loc->inode->ino;
+ local->inode = inode_ref (loc->inode);
- local->call_cnt = layout->cnt;
- call_cnt = local->call_cnt;
+ local->call_cnt = layout->cnt;
+ call_cnt = local->call_cnt;
- /* NOTE: we don't require 'trusted.glusterfs.dht.linkto' attribute,
- * revalidates directly go to the cached-subvolume.
- */
- ret = dict_set_uint32 (local->xattr_req,
- "trusted.glusterfs.dht", 4 * 4);
+ /* NOTE: we don't require 'trusted.glusterfs.dht.linkto' attribute,
+ * revalidates directly go to the cached-subvolume.
+ */
+ ret = dict_set_uint32 (local->xattr_req,
+ conf->xattr_name, 4 * 4);
if (ret < 0) {
gf_log (this->name, GF_LOG_ERROR,
"Failed to set dict value.");
@@ -241,20 +212,20 @@ nufa_lookup (call_frame_t *frame, xlator_t *this,
goto err;
}
- for (i = 0; i < layout->cnt; i++) {
- subvol = layout->list[i].xlator;
+ for (i = 0; i < layout->cnt; i++) {
+ subvol = layout->list[i].xlator;
- STACK_WIND (frame, dht_revalidate_cbk,
- subvol, subvol->fops->lookup,
- loc, local->xattr_req);
+ STACK_WIND (frame, dht_revalidate_cbk,
+ subvol, subvol->fops->lookup,
+ loc, local->xattr_req);
- if (!--call_cnt)
- break;
- }
- } else {
+ if (!--call_cnt)
+ break;
+ }
+ } else {
do_fresh_lookup:
- ret = dict_set_uint32 (local->xattr_req,
- "trusted.glusterfs.dht", 4 * 4);
+ ret = dict_set_uint32 (local->xattr_req,
+ conf->xattr_name, 4 * 4);
if (ret < 0) {
gf_log (this->name, GF_LOG_ERROR,
"Failed to set dict value.");
@@ -262,8 +233,8 @@ nufa_lookup (call_frame_t *frame, xlator_t *this,
goto err;
}
- ret = dict_set_uint32 (local->xattr_req,
- "trusted.glusterfs.dht.linkto", 256);
+ ret = dict_set_uint32 (local->xattr_req,
+ conf->link_xattr_name, 256);
if (ret < 0) {
gf_log (this->name, GF_LOG_ERROR,
"Failed to set dict value.");
@@ -271,111 +242,100 @@ nufa_lookup (call_frame_t *frame, xlator_t *this,
goto err;
}
- /* Send it to only local volume */
- STACK_WIND (frame, nufa_local_lookup_cbk,
- (xlator_t *)conf->private,
- ((xlator_t *)conf->private)->fops->lookup,
- loc, local->xattr_req);
- }
+ /* Send it to only local volume */
+ STACK_WIND (frame, nufa_local_lookup_cbk,
+ (xlator_t *)conf->private,
+ ((xlator_t *)conf->private)->fops->lookup,
+ loc, local->xattr_req);
+ }
return 0;
err:
- op_errno = (op_errno == -1) ? errno : op_errno;
- DHT_STACK_UNWIND (lookup, frame, -1, op_errno, NULL, NULL, NULL, NULL);
- return 0;
+ op_errno = (op_errno == -1) ? errno : op_errno;
+ DHT_STACK_UNWIND (lookup, frame, -1, op_errno, NULL, NULL, NULL,
+ NULL);
+ return 0;
}
int
nufa_create_linkfile_create_cbk (call_frame_t *frame, void *cookie,
- xlator_t *this, int op_ret, int op_errno,
+ xlator_t *this, int op_ret, int op_errno,
inode_t *inode, struct iatt *stbuf,
struct iatt *preparent,
- struct iatt *postparent)
+ struct iatt *postparent, dict_t *xdata)
{
- dht_local_t *local = NULL;
+ dht_local_t *local = NULL;
- local = frame->local;
+ local = frame->local;
- if (op_ret == -1)
- goto err;
+ if (op_ret == -1)
+ goto err;
- STACK_WIND (frame, dht_create_cbk,
- local->cached_subvol, local->cached_subvol->fops->create,
- &local->loc, local->flags, local->mode, local->fd,
- local->params);
+ STACK_WIND (frame, dht_create_cbk,
+ local->cached_subvol, local->cached_subvol->fops->create,
+ &local->loc, local->flags, local->mode, local->umask,
+ local->fd, local->params);
- return 0;
+ return 0;
- err:
- DHT_STACK_UNWIND (create, frame, -1, op_errno,
- NULL, NULL, NULL, NULL, NULL);
- return 0;
+err:
+ DHT_STACK_UNWIND (create, frame, -1, op_errno,
+ NULL, NULL, NULL, NULL, NULL, NULL);
+ return 0;
}
int
nufa_create (call_frame_t *frame, xlator_t *this,
- loc_t *loc, int32_t flags, mode_t mode,
- fd_t *fd, dict_t *params)
+ loc_t *loc, int32_t flags, mode_t mode,
+ mode_t umask, fd_t *fd, dict_t *params)
{
- dht_local_t *local = NULL;
- dht_conf_t *conf = NULL;
- xlator_t *subvol = NULL;
+ dht_local_t *local = NULL;
+ dht_conf_t *conf = NULL;
+ xlator_t *subvol = NULL;
xlator_t *avail_subvol = NULL;
- int op_errno = -1;
- int ret = -1;
+ int op_errno = -1;
- VALIDATE_OR_GOTO (frame, err);
- VALIDATE_OR_GOTO (this, err);
- VALIDATE_OR_GOTO (loc, err);
+ VALIDATE_OR_GOTO (frame, err);
+ VALIDATE_OR_GOTO (this, err);
+ VALIDATE_OR_GOTO (loc, err);
- conf = this->private;
+ conf = this->private;
dht_get_du_info (frame, this, loc);
- local = dht_local_init (frame);
- if (!local) {
- op_errno = ENOMEM;
- gf_log (this->name, GF_LOG_ERROR,
- "Out of memory");
- goto err;
- }
-
- subvol = dht_subvol_get_hashed (this, loc);
- if (!subvol) {
- gf_log (this->name, GF_LOG_DEBUG,
- "no subvolume in layout for path=%s",
- loc->path);
- op_errno = ENOENT;
- goto err;
- }
+ local = dht_local_init (frame, loc, fd, GF_FOP_CREATE);
+ if (!local) {
+ op_errno = ENOMEM;
+ goto err;
+ }
+
+ subvol = dht_subvol_get_hashed (this, loc);
+ if (!subvol) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "no subvolume in layout for path=%s",
+ loc->path);
+ op_errno = ENOENT;
+ goto err;
+ }
avail_subvol = conf->private;
if (dht_is_subvol_filled (this, (xlator_t *)conf->private)) {
avail_subvol =
dht_free_disk_available_subvol (this,
- (xlator_t *)conf->private);
+ (xlator_t *)conf->private,
+ local);
}
if (subvol != avail_subvol) {
/* create a link file instead of actual file */
- ret = loc_copy (&local->loc, loc);
- if (ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "Out of memory");
- op_errno = ENOMEM;
- goto err;
- }
-
- local->fd = fd_ref (fd);
local->params = dict_ref (params);
local->mode = mode;
local->flags = flags;
-
+ local->umask = umask;
local->cached_subvol = avail_subvol;
- dht_linkfile_create (frame,
- nufa_create_linkfile_create_cbk,
- avail_subvol, subvol, loc);
+ dht_linkfile_create (frame, nufa_create_linkfile_create_cbk,
+ this, avail_subvol, subvol, loc);
return 0;
}
@@ -384,379 +344,333 @@ nufa_create (call_frame_t *frame, xlator_t *this,
STACK_WIND (frame, dht_create_cbk,
subvol, subvol->fops->create,
- loc, flags, mode, fd, params);
+ loc, flags, mode, umask, fd, params);
return 0;
err:
- op_errno = (op_errno == -1) ? errno : op_errno;
- DHT_STACK_UNWIND (create, frame, -1, op_errno,
- NULL, NULL, NULL, NULL, NULL);
+ op_errno = (op_errno == -1) ? errno : op_errno;
+ DHT_STACK_UNWIND (create, frame, -1, op_errno,
+ NULL, NULL, NULL, NULL, NULL, NULL);
- return 0;
+ return 0;
}
int
nufa_mknod_linkfile_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int op_ret, int op_errno, inode_t *inode,
struct iatt *stbuf, struct iatt *preparent,
- struct iatt *postparent)
+ struct iatt *postparent, dict_t *xdata)
{
- dht_local_t *local = NULL;
+ dht_local_t *local = NULL;
- local = frame->local;
-
- if (op_ret >= 0) {
- STACK_WIND (frame, dht_newfile_cbk,
- local->cached_subvol,
- local->cached_subvol->fops->mknod,
- &local->loc, local->mode, local->rdev,
- local->params);
+ local = frame->local;
+ if (!local || !local->cached_subvol) {
+ op_errno = EINVAL;
+ op_ret = -1;
+ goto err;
+ }
- return 0;
- }
+ if (op_ret >= 0) {
+ STACK_WIND_COOKIE (frame, dht_newfile_cbk,
+ (void *)local->cached_subvol, local->cached_subvol,
+ local->cached_subvol->fops->mknod,
+ &local->loc, local->mode, local->rdev,
+ local->umask, local->params);
+ return 0;
+ }
+err:
WIPE (postparent);
WIPE (preparent);
- DHT_STACK_UNWIND (link, frame, op_ret, op_errno,
- inode, stbuf, preparent, postparent);
- return 0;
+ DHT_STACK_UNWIND (link, frame, op_ret, op_errno,
+ inode, stbuf, preparent, postparent, xdata);
+ return 0;
}
int
nufa_mknod (call_frame_t *frame, xlator_t *this,
- loc_t *loc, mode_t mode, dev_t rdev, dict_t *params)
+ loc_t *loc, mode_t mode, dev_t rdev, mode_t umask, dict_t *params)
{
- dht_local_t *local = NULL;
- dht_conf_t *conf = NULL;
- xlator_t *subvol = NULL;
+ dht_local_t *local = NULL;
+ dht_conf_t *conf = NULL;
+ xlator_t *subvol = NULL;
xlator_t *avail_subvol = NULL;
- int op_errno = -1;
- int ret = -1;
+ int op_errno = -1;
- VALIDATE_OR_GOTO (frame, err);
- VALIDATE_OR_GOTO (this, err);
- VALIDATE_OR_GOTO (loc, err);
+ VALIDATE_OR_GOTO (frame, err);
+ VALIDATE_OR_GOTO (this, err);
+ VALIDATE_OR_GOTO (loc, err);
- conf = this->private;
+ conf = this->private;
dht_get_du_info (frame, this, loc);
- local = dht_local_init (frame);
- if (!local) {
- op_errno = ENOMEM;
- gf_log (this->name, GF_LOG_ERROR,
- "Out of memory");
- goto err;
- }
-
- subvol = dht_subvol_get_hashed (this, loc);
- if (!subvol) {
- gf_log (this->name, GF_LOG_DEBUG,
- "no subvolume in layout for path=%s",
- loc->path);
- op_errno = ENOENT;
- goto err;
- }
+ local = dht_local_init (frame, loc, NULL, GF_FOP_MKNOD);
+ if (!local) {
+ op_errno = ENOMEM;
+ goto err;
+ }
+
+ subvol = dht_subvol_get_hashed (this, loc);
+ if (!subvol) {
+ gf_log (this->name, GF_LOG_DEBUG,
+ "no subvolume in layout for path=%s",
+ loc->path);
+ op_errno = ENOENT;
+ goto err;
+ }
/* Consider the disksize in consideration */
avail_subvol = conf->private;
if (dht_is_subvol_filled (this, (xlator_t *)conf->private)) {
avail_subvol =
dht_free_disk_available_subvol (this,
- (xlator_t *)conf->private);
+ (xlator_t *)conf->private,
+ local);
}
- if (avail_subvol != subvol) {
- /* Create linkfile first */
- ret = loc_copy (&local->loc, loc);
- if (ret == -1) {
- gf_log (this->name, GF_LOG_ERROR,
- "Out of memory");
- op_errno = ENOMEM;
- goto err;
- }
+ if (avail_subvol != subvol) {
+ /* Create linkfile first */
local->params = dict_ref (params);
- local->mode = mode;
- local->rdev = rdev;
- local->cached_subvol = avail_subvol;
+ local->mode = mode;
+ local->umask = umask;
+ local->rdev = rdev;
+ local->cached_subvol = avail_subvol;
- dht_linkfile_create (frame, nufa_mknod_linkfile_cbk,
+ dht_linkfile_create (frame, nufa_mknod_linkfile_cbk, this,
avail_subvol, subvol, loc);
- return 0;
- }
+ return 0;
+ }
- gf_log (this->name, GF_LOG_TRACE,
- "creating %s on %s", loc->path, subvol->name);
+ gf_log (this->name, GF_LOG_TRACE,
+ "creating %s on %s", loc->path, subvol->name);
- STACK_WIND (frame, dht_newfile_cbk,
- subvol, subvol->fops->mknod,
- loc, mode, rdev, params);
+ STACK_WIND_COOKIE (frame, dht_newfile_cbk, (void *)subvol, subvol,
+ subvol->fops->mknod, loc, mode, rdev, umask,
+ params);
- return 0;
+ return 0;
err:
- op_errno = (op_errno == -1) ? errno : op_errno;
- DHT_STACK_UNWIND (mknod, frame, -1, op_errno,
- NULL, NULL, NULL, NULL);
+ op_errno = (op_errno == -1) ? errno : op_errno;
+ DHT_STACK_UNWIND (mknod, frame, -1, op_errno,
+ NULL, NULL, NULL, NULL, NULL);
- return 0;
+ return 0;
}
-int
-notify (xlator_t *this, int event, void *data, ...)
+gf_boolean_t
+same_first_part (char *str1, char term1, char *str2, char term2)
{
- int ret = -1;
-
- ret = dht_notify (this, event, data);
-
- return ret;
+ gf_boolean_t ended1;
+ gf_boolean_t ended2;
+
+ for (;;) {
+ ended1 = ((*str1 == '\0') || (*str1 == term1));
+ ended2 = ((*str2 == '\0') || (*str2 == term2));
+ if (ended1 && ended2) {
+ return _gf_true;
+ }
+ if (ended1 || ended2 || (*str1 != *str2)) {
+ return _gf_false;
+ }
+ ++str1;
+ ++str2;
+ }
}
-void
-fini (xlator_t *this)
+typedef struct nufa_args {
+ xlator_t *this;
+ char *volname;
+ gf_boolean_t addr_match;
+} nufa_args_t;
+
+static void
+nufa_find_local_brick (xlator_t *xl, void *data)
{
- int i = 0;
- dht_conf_t *conf = NULL;
+ nufa_args_t *args = data;
+ xlator_t *this = args->this;
+ char *local_volname = args->volname;
+ gf_boolean_t addr_match = args->addr_match;
+ char *brick_host = NULL;
+ dht_conf_t *conf = this->private;
+ int ret = -1;
+
+ /*This means a local subvol was already found. We pick the first brick
+ * that is local*/
+ if (conf->private)
+ return;
+
+ if (strcmp (xl->name, local_volname) == 0) {
+ conf->private = xl;
+ gf_log (this->name, GF_LOG_INFO, "Using specified subvol %s",
+ local_volname);
+ return;
+ }
- conf = this->private;
+ if (!addr_match)
+ return;
+
+ ret = dict_get_str (xl->options, "remote-host", &brick_host);
+ if ((ret == 0) &&
+ (gf_is_same_address (local_volname, brick_host) ||
+ gf_is_local_addr (brick_host))) {
+ conf->private = xl;
+ gf_log (this->name, GF_LOG_INFO, "Using the first local "
+ "subvol %s", xl->name);
+ return;
+ }
- if (conf) {
- if (conf->file_layouts) {
- for (i = 0; i < conf->subvolume_cnt; i++) {
- GF_FREE (conf->file_layouts[i]);
- }
- GF_FREE (conf->file_layouts);
- }
+}
- if (conf->default_dir_layout)
- GF_FREE (conf->default_dir_layout);
+static void
+nufa_to_dht (xlator_t *this)
+{
+ GF_ASSERT (this);
+ GF_ASSERT (this->fops);
- if (conf->subvolumes)
- GF_FREE (conf->subvolumes);
+ this->fops->lookup = dht_lookup;
+ this->fops->create = dht_create;
+ this->fops->mknod = dht_mknod;
+}
- if (conf->subvolume_status)
- GF_FREE (conf->subvolume_status);
+int
+nufa_find_local_subvol (xlator_t *this,
+ void (*fn) (xlator_t *each, void* data), void *data)
+{
+ int ret = -1;
+ dht_conf_t *conf = this->private;
+ xlator_list_t *trav = NULL;
+ xlator_t *parent = NULL;
+ xlator_t *candidate = NULL;
+
+ xlator_foreach_depth_first (this, fn, data);
+ if (!conf->private) {
+ gf_log (this->name, GF_LOG_ERROR, "Couldn't find a local "
+ "brick");
+ return -1;
+ }
+
+ candidate = conf->private;
+ trav = candidate->parents;
+ while (trav) {
+
+ parent = trav->xlator;
+ if (strcmp (parent->type, "cluster/nufa") == 0) {
+ gf_log (this->name, GF_LOG_INFO, "Found local subvol, "
+ "%s", candidate->name);
+ ret = 0;
+ conf->private = candidate;
+ break;
+ }
- GF_FREE (conf);
+ candidate = parent;
+ trav = parent->parents;
}
- return;
+ return ret;
}
int
-init (xlator_t *this)
+nufa_init (xlator_t *this)
{
- dht_conf_t *conf = NULL;
- xlator_list_t *trav = NULL;
- data_t *data = NULL;
- char *local_volname = NULL;
- char *temp_str = NULL;
+ data_t *data = NULL;
+ char *local_volname = NULL;
int ret = -1;
- int i = 0;
- char my_hostname[256];
- uint32_t temp_free_disk = 0;
-
- if (!this->children) {
- gf_log (this->name, GF_LOG_CRITICAL,
- "NUFA needs more than one subvolume");
- return -1;
- }
-
- if (!this->parents) {
- gf_log (this->name, GF_LOG_WARNING,
- "dangling volume. check volfile");
- }
-
- conf = GF_CALLOC (1, sizeof (*conf),
- gf_dht_mt_dht_conf_t);
- if (!conf) {
- gf_log (this->name, GF_LOG_ERROR,
- "Out of memory");
- goto err;
+ char my_hostname[256];
+ gf_boolean_t addr_match = _gf_false;
+ nufa_args_t args = {0, };
+
+ ret = dht_init(this);
+ if (ret) {
+ return ret;
}
- conf->search_unhashed = GF_DHT_LOOKUP_UNHASHED_ON;
- if (dict_get_str (this->options, "lookup-unhashed", &temp_str) == 0) {
- /* If option is not "auto", other options _should_ be boolean */
- if (strcasecmp (temp_str, "auto"))
- gf_string2boolean (temp_str, &conf->search_unhashed);
- else
- conf->search_unhashed = GF_DHT_LOOKUP_UNHASHED_AUTO;
- }
+ if ((data = dict_get (this->options, "local-volume-name"))) {
+ local_volname = data->data;
- ret = dht_init_subvolumes (this, conf);
- if (ret == -1) {
- goto err;
- }
+ } else {
+ addr_match = _gf_true;
+ local_volname = "localhost";
+ ret = gethostname (my_hostname, 256);
+ if (ret == 0)
+ local_volname = my_hostname;
- ret = dht_layouts_init (this, conf);
- if (ret == -1) {
- goto err;
- }
+ else
+ gf_log (this->name, GF_LOG_WARNING,
+ "could not find hostname (%s)",
+ strerror (errno));
- LOCK_INIT (&conf->subvolume_lock);
- LOCK_INIT (&conf->layout_lock);
-
- conf->gen = 1;
-
- local_volname = "localhost";
- ret = gethostname (my_hostname, 256);
- if (ret < 0) {
- gf_log (this->name, GF_LOG_WARNING,
- "could not find hostname (%s)",
- strerror (errno));
- }
-
- if (ret == 0)
- local_volname = my_hostname;
-
- data = dict_get (this->options, "local-volume-name");
- if (data) {
- local_volname = data->data;
- }
-
- trav = this->children;
- while (trav) {
- if (strcmp (trav->xlator->name, local_volname) == 0)
- break;
- trav = trav->next;
- }
-
- if (!trav) {
- gf_log (this->name, GF_LOG_ERROR,
- "Could not find subvolume named '%s'. "
- "Please define volume with the name as the hostname "
- "or override it with 'option local-volume-name'",
- local_volname);
- goto err;
- }
- /* The volume specified exists */
- conf->private = trav->xlator;
-
- conf->min_free_disk = 10;
- conf->disk_unit = 'p';
-
- if (dict_get_str (this->options, "min-free-disk",
- &temp_str) == 0) {
- if (gf_string2percent (temp_str,
- &temp_free_disk) == 0) {
- if (temp_free_disk > 100) {
- gf_string2bytesize (temp_str,
- &conf->min_free_disk);
- conf->disk_unit = 'b';
- } else {
- conf->min_free_disk = (uint64_t)temp_free_disk;
- conf->disk_unit = 'p';
- }
- } else {
- gf_string2bytesize (temp_str,
- &conf->min_free_disk);
- conf->disk_unit = 'b';
- }
}
- conf->du_stats = GF_CALLOC (conf->subvolume_cnt, sizeof (dht_du_t),
- gf_dht_mt_dht_du_t);
- if (!conf->du_stats) {
- gf_log (this->name, GF_LOG_ERROR,
- "Out of memory");
- goto err;
+ args.this = this;
+ args.volname = local_volname;
+ args.addr_match = addr_match;
+ ret = nufa_find_local_subvol (this, nufa_find_local_brick, &args);
+ if (ret) {
+ gf_log (this->name, GF_LOG_INFO,
+ "Unable to find local subvolume, switching "
+ "to dht mode");
+ nufa_to_dht (this);
}
-
- this->private = conf;
-
return 0;
+}
-err:
- if (conf) {
- if (conf->file_layouts) {
- for (i = 0; i < conf->subvolume_cnt; i++) {
- GF_FREE (conf->file_layouts[i]);
- }
- GF_FREE (conf->file_layouts);
- }
-
- if (conf->default_dir_layout)
- GF_FREE (conf->default_dir_layout);
-
- if (conf->subvolumes)
- GF_FREE (conf->subvolumes);
-
- if (conf->subvolume_status)
- GF_FREE (conf->subvolume_status);
-
- if (conf->du_stats)
- GF_FREE (conf->du_stats);
-
- GF_FREE (conf);
- }
- return -1;
-}
+class_methods_t class_methods = {
+ .init = nufa_init,
+ .fini = dht_fini,
+ .reconfigure = dht_reconfigure,
+ .notify = dht_notify
+};
struct xlator_fops fops = {
- .lookup = nufa_lookup,
- .create = nufa_create,
- .mknod = nufa_mknod,
-
- .stat = dht_stat,
- .fstat = dht_fstat,
- .truncate = dht_truncate,
- .ftruncate = dht_ftruncate,
- .access = dht_access,
- .readlink = dht_readlink,
- .setxattr = dht_setxattr,
- .getxattr = dht_getxattr,
- .removexattr = dht_removexattr,
- .open = dht_open,
- .readv = dht_readv,
- .writev = dht_writev,
- .flush = dht_flush,
- .fsync = dht_fsync,
- .statfs = dht_statfs,
- .lk = dht_lk,
- .opendir = dht_opendir,
- .readdir = dht_readdir,
- .readdirp = dht_readdirp,
- .fsyncdir = dht_fsyncdir,
- .symlink = dht_symlink,
- .unlink = dht_unlink,
- .link = dht_link,
- .mkdir = dht_mkdir,
- .rmdir = dht_rmdir,
- .rename = dht_rename,
- .inodelk = dht_inodelk,
- .finodelk = dht_finodelk,
- .entrylk = dht_entrylk,
- .fentrylk = dht_fentrylk,
- .xattrop = dht_xattrop,
- .fxattrop = dht_fxattrop,
+ .lookup = nufa_lookup,
+ .create = nufa_create,
+ .mknod = nufa_mknod,
+
+ .stat = dht_stat,
+ .fstat = dht_fstat,
+ .truncate = dht_truncate,
+ .ftruncate = dht_ftruncate,
+ .access = dht_access,
+ .readlink = dht_readlink,
+ .setxattr = dht_setxattr,
+ .getxattr = dht_getxattr,
+ .removexattr = dht_removexattr,
+ .open = dht_open,
+ .readv = dht_readv,
+ .writev = dht_writev,
+ .flush = dht_flush,
+ .fsync = dht_fsync,
+ .statfs = dht_statfs,
+ .lk = dht_lk,
+ .opendir = dht_opendir,
+ .readdir = dht_readdir,
+ .readdirp = dht_readdirp,
+ .fsyncdir = dht_fsyncdir,
+ .symlink = dht_symlink,
+ .unlink = dht_unlink,
+ .link = dht_link,
+ .mkdir = dht_mkdir,
+ .rmdir = dht_rmdir,
+ .rename = dht_rename,
+ .inodelk = dht_inodelk,
+ .finodelk = dht_finodelk,
+ .entrylk = dht_entrylk,
+ .fentrylk = dht_fentrylk,
+ .xattrop = dht_xattrop,
+ .fxattrop = dht_fxattrop,
.setattr = dht_setattr,
};
struct xlator_cbks cbks = {
- .forget = dht_forget
-};
-
-
-struct volume_options options[] = {
- { .key = {"lookup-unhashed"},
- .value = {"auto", "yes", "no", "enable", "disable", "1", "0",
- "on", "off"},
- .type = GF_OPTION_TYPE_STR
- },
- { .key = {"local-volume-name"},
- .type = GF_OPTION_TYPE_XLATOR
- },
- { .key = {"min-free-disk"},
- .type = GF_OPTION_TYPE_PERCENT_OR_SIZET,
- },
- { .key = {NULL} },
+ .forget = dht_forget
};
generated by cgit (git 2.34.1) at 2026-01-04 05:43:49 +0000