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glusterfs/0226-gluster-Sometimes-Brick-process-is-crashed-at-the-ti.patch
Milind Changire c211c8d97e autobuild v3.12.2-8 
Resolves: bz#1466129 bz#1475779 bz#1523216 bz#1535281 bz#1546941
Resolves: bz#1550315 bz#1550991 bz#1553677 bz#1554291 bz#1559452
Resolves: bz#1560955 bz#1562744 bz#1563692 bz#1565962 bz#1567110
Resolves: bz#1569457
Signed-off-by: Milind Changire <mchangir@redhat.com>
2018-04-20 06:34:51 -04:00

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From 53042d3aa2a619c0e5e56d0707ea9d503429d28a Mon Sep 17 00:00:00 2001
From: Mohit Agrawal <moagrawa@redhat.com>
Date: Mon, 12 Mar 2018 19:43:15 +0530
Subject: [PATCH 226/236] gluster: Sometimes Brick process is crashed at the
time of stopping brick
Problem: Sometimes brick process is getting crashed at the time
of stop brick while brick mux is enabled.
Solution: Brick process was getting crashed because of rpc connection
was not cleaning properly while brick mux is enabled.In this patch
after sending GF_EVENT_CLEANUP notification to xlator(server)
waits for all rpc client connection destroy for specific xlator.Once rpc
connections are destroyed in server_rpc_notify for all associated client
for that brick then call xlator_mem_cleanup for for brick xlator as well as
all child xlators.To avoid races at the time of cleanup introduce
two new flags at each xlator cleanup_starting, call_cleanup.
> BUG: 1544090
> Signed-off-by: Mohit Agrawal <moagrawa@redhat.com>
> (cherry picked from commit 0043c63f70776444f69667a4ef9596217ecb42b7)
> (Upstream link for review https://review.gluster.org/#/c/19734/)
> Note: Run all test-cases in separate build (https://review.gluster.org/#/c/19700/)
> with same patch after enable brick mux forcefully, all test cases are
> passed.
BUG: 1535281
Signed-off-by: Mohit Agrawal <moagrawa@redhat.com>
Change-Id: Ic4ab9c128df282d146cf1135640281fcb31997bf
Reviewed-on: https://code.engineering.redhat.com/gerrit/136229
Tested-by: RHGS Build Bot <nigelb@redhat.com>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
---
glusterfsd/src/glusterfsd-mgmt.c | 96 +++++++++++---
libglusterfs/src/client_t.c | 4 +-
libglusterfs/src/fd.c | 4 +-
libglusterfs/src/graph.c | 6 +-
libglusterfs/src/inode.c | 2 +-
libglusterfs/src/statedump.c | 61 ++++++---
libglusterfs/src/xlator.c | 8 +-
libglusterfs/src/xlator.h | 11 +-
tests/volume.rc | 31 ++++-
xlators/features/changelog/src/changelog-rpc.c | 9 ++
xlators/features/changelog/src/changelog.c | 5 +
xlators/features/trash/src/trash.c | 18 ++-
xlators/protocol/server/src/server-handshake.c | 25 +++-
xlators/protocol/server/src/server.c | 170 ++++++++++++++++++-------
xlators/protocol/server/src/server.h | 2 +-
xlators/storage/posix/src/posix-helpers.c | 14 +-
xlators/storage/posix/src/posix.c | 6 +-
17 files changed, 362 insertions(+), 110 deletions(-)
diff --git a/glusterfsd/src/glusterfsd-mgmt.c b/glusterfsd/src/glusterfsd-mgmt.c
index 8f4450b..fdf403c 100644
--- a/glusterfsd/src/glusterfsd-mgmt.c
+++ b/glusterfsd/src/glusterfsd-mgmt.c
@@ -206,11 +206,6 @@ xlator_mem_free (xlator_t *xl)
if (!xl)
return 0;
- GF_FREE (xl->name);
- GF_FREE (xl->type);
- xl->name = NULL;
- xl->type = NULL;
-
if (xl->options) {
dict_ref (xl->options);
dict_unref (xl->options);
@@ -222,25 +217,38 @@ xlator_mem_free (xlator_t *xl)
GF_FREE (vol_opt);
}
+ xlator_memrec_free (xl);
+
return 0;
}
void
xlator_call_fini (xlator_t *this) {
- if (!this)
+ if (!this || this->cleanup_starting)
return;
+ this->cleanup_starting = 1;
+ this->call_cleanup = 1;
xlator_call_fini (this->next);
this->fini (this);
}
void
xlator_mem_cleanup (xlator_t *this) {
- xlator_list_t *list = this->children;
- xlator_t *trav = list->xlator;
- inode_table_t *inode_table = NULL;
- xlator_t *prev = trav;
+ xlator_list_t *list = this->children;
+ xlator_t *trav = list->xlator;
+ inode_table_t *inode_table = NULL;
+ xlator_t *prev = trav;
+ glusterfs_ctx_t *ctx = NULL;
+ xlator_list_t **trav_p = NULL;
+ xlator_t *top = NULL;
+ xlator_t *victim = NULL;
- inode_table = this->itable;
+
+ if (this->call_cleanup)
+ return;
+
+ this->call_cleanup = 1;
+ ctx = glusterfsd_ctx;
xlator_call_fini (trav);
@@ -250,6 +258,7 @@ xlator_mem_cleanup (xlator_t *this) {
prev = trav;
}
+ inode_table = this->itable;
if (inode_table) {
inode_table_destroy (inode_table);
this->itable = NULL;
@@ -260,6 +269,33 @@ xlator_mem_cleanup (xlator_t *this) {
}
xlator_mem_free (this);
+
+ if (glusterfsd_ctx->active) {
+ top = glusterfsd_ctx->active->first;
+ LOCK (&ctx->volfile_lock);
+ /* TODO here we have leak for xlator node in a graph */
+ for (trav_p = &top->children; *trav_p; trav_p = &(*trav_p)->next) {
+ victim = (*trav_p)->xlator;
+ if (victim->call_cleanup && !strcmp (victim->name, this->name)) {
+ (*trav_p) = (*trav_p)->next;
+ break;
+ }
+ }
+ /* TODO Sometime brick xlator is not moved from graph so followed below
+ approach to move brick xlator from a graph, will move specific brick
+ xlator from graph only while inode table and mem_acct are cleaned up
+ */
+ trav_p = &top->children;
+ while (*trav_p) {
+ victim = (*trav_p)->xlator;
+ if (victim->call_cleanup && !victim->itable && !victim->mem_acct) {
+ (*trav_p) = (*trav_p)->next;
+ } else {
+ trav_p = &(*trav_p)->next;
+ }
+ }
+ UNLOCK (&ctx->volfile_lock);
+ }
}
@@ -271,8 +307,10 @@ glusterfs_handle_terminate (rpcsvc_request_t *req)
glusterfs_ctx_t *ctx = NULL;
xlator_t *top = NULL;
xlator_t *victim = NULL;
+ xlator_t *tvictim = NULL;
xlator_list_t **trav_p = NULL;
gf_boolean_t lockflag = _gf_false;
+ gf_boolean_t last_brick = _gf_false;
ret = xdr_to_generic (req->msg[0], &xlator_req,
(xdrproc_t)xdr_gd1_mgmt_brick_op_req);
@@ -290,11 +328,15 @@ glusterfs_handle_terminate (rpcsvc_request_t *req)
for (trav_p = &top->children; *trav_p;
trav_p = &(*trav_p)->next) {
victim = (*trav_p)->xlator;
- if (strcmp (victim->name, xlator_req.name) == 0) {
+ if (!victim->cleanup_starting && strcmp (victim->name, xlator_req.name) == 0) {
break;
}
}
}
+
+ if (!top)
+ goto err;
+
}
if (!*trav_p) {
gf_log (THIS->name, GF_LOG_ERROR,
@@ -310,26 +352,38 @@ glusterfs_handle_terminate (rpcsvc_request_t *req)
}
glusterfs_terminate_response_send (req, 0);
- if ((trav_p == &top->children) && !(*trav_p)->next) {
+ for (trav_p = &top->children; *trav_p; trav_p = &(*trav_p)->next) {
+ tvictim = (*trav_p)->xlator;
+ if (!tvictim->cleanup_starting && !strcmp (tvictim->name, xlator_req.name)) {
+ continue;
+ }
+ if (!tvictim->cleanup_starting) {
+ last_brick = _gf_true;
+ break;
+ }
+ }
+ if (!last_brick) {
gf_log (THIS->name, GF_LOG_INFO,
"terminating after loss of last child %s",
xlator_req.name);
glusterfs_mgmt_pmap_signout (glusterfsd_ctx, xlator_req.name);
kill (getpid(), SIGTERM);
} else {
- /*
- * This is terribly unsafe without quiescing or shutting
- * things down properly but it gets us to the point
- * where we can test other stuff.
- *
- * TBD: finish implementing this "detach" code properly
- */
+ /* TODO cleanup sequence needs to be done properly for
+ Quota and Changelog
+ */
+ if (victim->cleanup_starting)
+ goto err;
+
+ victim->cleanup_starting = 1;
+
UNLOCK (&ctx->volfile_lock);
lockflag = _gf_true;
+
gf_log (THIS->name, GF_LOG_INFO, "detaching not-only"
" child %s", xlator_req.name);
top->notify (top, GF_EVENT_CLEANUP, victim);
- xlator_mem_cleanup (victim);
+
}
err:
if (!lockflag)
diff --git a/libglusterfs/src/client_t.c b/libglusterfs/src/client_t.c
index eda1c46..55d891f 100644
--- a/libglusterfs/src/client_t.c
+++ b/libglusterfs/src/client_t.c
@@ -338,7 +338,7 @@ gf_client_destroy_recursive (xlator_t *xl, client_t *client)
{
xlator_list_t *trav;
- if (xl->cbks->client_destroy) {
+ if (!xl->call_cleanup && xl->cbks->client_destroy) {
xl->cbks->client_destroy (xl, client);
}
@@ -397,7 +397,7 @@ gf_client_disconnect_recursive (xlator_t *xl, client_t *client)
int ret = 0;
xlator_list_t *trav;
- if (xl->cbks->client_disconnect) {
+ if (!xl->call_cleanup && xl->cbks->client_disconnect) {
ret = xl->cbks->client_disconnect (xl, client);
}
diff --git a/libglusterfs/src/fd.c b/libglusterfs/src/fd.c
index 45b0d32..2dc52ba 100644
--- a/libglusterfs/src/fd.c
+++ b/libglusterfs/src/fd.c
@@ -500,7 +500,7 @@ fd_destroy (fd_t *fd, gf_boolean_t bound)
xl = fd->_ctx[i].xl_key;
old_THIS = THIS;
THIS = xl;
- if (xl->cbks->releasedir)
+ if (!xl->call_cleanup && xl->cbks->releasedir)
xl->cbks->releasedir (xl, fd);
THIS = old_THIS;
}
@@ -511,7 +511,7 @@ fd_destroy (fd_t *fd, gf_boolean_t bound)
xl = fd->_ctx[i].xl_key;
old_THIS = THIS;
THIS = xl;
- if (xl->cbks->release)
+ if (!xl->call_cleanup && xl->cbks->release)
xl->cbks->release (xl, fd);
THIS = old_THIS;
}
diff --git a/libglusterfs/src/graph.c b/libglusterfs/src/graph.c
index cdd7123..c0e67e4 100644
--- a/libglusterfs/src/graph.c
+++ b/libglusterfs/src/graph.c
@@ -841,7 +841,7 @@ is_graph_topology_equal (glusterfs_graph_t *graph1, glusterfs_graph_t *graph2)
trav2 = trav2->children->xlator;
for (ltrav = trav1->children; ltrav; ltrav = ltrav->next) {
trav1 = ltrav->xlator;
- if (strcmp (trav1->name, trav2->name) == 0) {
+ if (!trav1->cleanup_starting && !strcmp (trav1->name, trav2->name)) {
break;
}
}
@@ -1088,7 +1088,7 @@ glusterfs_graph_reconfigure (glusterfs_graph_t *oldgraph,
new_xl = FIRST_CHILD (new_xl);
for (trav = old_xl->children; trav; trav = trav->next) {
- if (strcmp (trav->xlator->name, new_xl->name) == 0) {
+ if (!trav->xlator->cleanup_starting && !strcmp (trav->xlator->name, new_xl->name)) {
return xlator_tree_reconfigure (trav->xlator, new_xl);
}
}
@@ -1240,7 +1240,7 @@ glusterfs_graph_attach (glusterfs_graph_t *orig_graph, char *path,
xl->volfile_id[strlen(xl->volfile_id)-4] = '\0';
}
- /* TBD: memory leaks everywhere */
+ /* TODO memory leaks everywhere need to free graph in case of error */
if (glusterfs_graph_prepare (graph, this->ctx, xl->name)) {
gf_log (this->name, GF_LOG_WARNING,
"failed to prepare graph for xlator %s", xl->name);
diff --git a/libglusterfs/src/inode.c b/libglusterfs/src/inode.c
index ffba1bf..cf264d8 100644
--- a/libglusterfs/src/inode.c
+++ b/libglusterfs/src/inode.c
@@ -328,7 +328,7 @@ __inode_ctx_free (inode_t *inode)
xl = (xlator_t *)(long)inode->_ctx[index].xl_key;
old_THIS = THIS;
THIS = xl;
- if (xl->cbks->forget)
+ if (!xl->call_cleanup && xl->cbks->forget)
xl->cbks->forget (xl, inode);
THIS = old_THIS;
}
diff --git a/libglusterfs/src/statedump.c b/libglusterfs/src/statedump.c
index 697ddc3..e9ecef5 100644
--- a/libglusterfs/src/statedump.c
+++ b/libglusterfs/src/statedump.c
@@ -483,21 +483,14 @@ gf_proc_dump_dict_info (glusterfs_ctx_t *ctx)
(total_pairs / total_dicts));
}
-void
-gf_proc_dump_xlator_info (xlator_t *top)
+static void
+gf_proc_dump_per_xlator_info (xlator_t *top)
{
- xlator_t *trav = NULL;
- glusterfs_ctx_t *ctx = NULL;
+ xlator_t *trav = top;
+ glusterfs_ctx_t *ctx = top->ctx;
char itable_key[1024] = {0,};
- if (!top)
- return;
-
- ctx = top->ctx;
-
- trav = top;
- while (trav) {
-
+ while (trav && !trav->cleanup_starting) {
if (ctx->measure_latency)
gf_proc_dump_latency_info (trav);
@@ -521,7 +514,6 @@ gf_proc_dump_xlator_info (xlator_t *top)
if (GF_PROC_DUMP_IS_XL_OPTION_ENABLED (inode) &&
(trav->dumpops->inode))
trav->dumpops->inode (trav);
-
if (trav->dumpops->fd &&
GF_PROC_DUMP_IS_XL_OPTION_ENABLED (fd))
trav->dumpops->fd (trav);
@@ -532,6 +524,30 @@ gf_proc_dump_xlator_info (xlator_t *top)
trav = trav->next;
}
+}
+
+
+
+void
+gf_proc_dump_xlator_info (xlator_t *top, gf_boolean_t brick_mux)
+{
+ xlator_t *trav = NULL;
+ xlator_list_t **trav_p = NULL;
+
+ if (!top)
+ return;
+
+ trav = top;
+ gf_proc_dump_per_xlator_info (trav);
+
+ if (brick_mux) {
+ trav_p = &top->children;
+ while (*trav_p) {
+ trav = (*trav_p)->xlator;
+ gf_proc_dump_per_xlator_info (trav);
+ trav_p = &(*trav_p)->next;
+ }
+ }
return;
}
@@ -785,12 +801,27 @@ gf_proc_dump_info (int signum, glusterfs_ctx_t *ctx)
char tmp_dump_name[PATH_MAX] = {0,};
char path[PATH_MAX] = {0,};
struct timeval tv = {0,};
+ gf_boolean_t is_brick_mux = _gf_false;
+ xlator_t *top = NULL;
+ xlator_list_t **trav_p = NULL;
+ int brick_count = 0;
gf_proc_dump_lock ();
if (!ctx)
goto out;
+ if (ctx) {
+ top = ctx->active->first;
+ for (trav_p = &top->children; *trav_p;
+ trav_p = &(*trav_p)->next) {
+ brick_count++;
+ }
+
+ if (brick_count > 1)
+ is_brick_mux = _gf_true;
+ }
+
if (ctx->cmd_args.brick_name) {
GF_REMOVE_SLASH_FROM_PATH (ctx->cmd_args.brick_name, brick_name);
} else
@@ -850,12 +881,12 @@ gf_proc_dump_info (int signum, glusterfs_ctx_t *ctx)
if (ctx->master) {
gf_proc_dump_add_section ("fuse");
- gf_proc_dump_xlator_info (ctx->master);
+ gf_proc_dump_xlator_info (ctx->master, _gf_false);
}
if (ctx->active) {
gf_proc_dump_add_section ("active graph - %d", ctx->graph_id);
- gf_proc_dump_xlator_info (ctx->active->top);
+ gf_proc_dump_xlator_info (ctx->active->top, is_brick_mux);
}
i = 0;
diff --git a/libglusterfs/src/xlator.c b/libglusterfs/src/xlator.c
index de97dff..4722800 100644
--- a/libglusterfs/src/xlator.c
+++ b/libglusterfs/src/xlator.c
@@ -424,7 +424,7 @@ get_xlator_by_name_or_type (xlator_t *this, char *target, int is_name)
for (trav = this->children; trav; trav = trav->next) {
value = is_name ? trav->xlator->name : trav->xlator->type;
- if (strcmp(value, target) == 0) {
+ if (!strcmp(value, target)) {
return trav->xlator;
}
child_xl = get_xlator_by_name_or_type (trav->xlator, target,
@@ -505,7 +505,9 @@ xlator_init (xlator_t *xl)
}
xl->init_succeeded = 1;
-
+ /*xl->cleanup_starting = 0;
+ xl->call_cleanup = 0;
+ */
ret = 0;
out:
return ret;
@@ -638,7 +640,7 @@ xlator_list_destroy (xlator_list_t *list)
return 0;
}
-static int
+int
xlator_memrec_free (xlator_t *xl)
{
uint32_t i = 0;
diff --git a/libglusterfs/src/xlator.h b/libglusterfs/src/xlator.h
index 26d2cc5..5ed8646 100644
--- a/libglusterfs/src/xlator.h
+++ b/libglusterfs/src/xlator.h
@@ -957,6 +957,14 @@ struct _xlator {
/* Its used as an index to inode_ctx*/
uint32_t xl_id;
+
+ /* cleanup flag to avoid races during xlator cleanup */
+ uint32_t cleanup_starting;
+
+ /* flag to avoid recall of xlator_mem_cleanup for xame xlator */
+ uint32_t call_cleanup;
+
+
};
typedef struct {
@@ -1069,5 +1077,6 @@ copy_opts_to_child (xlator_t *src, xlator_t *dst, char *glob);
int
glusterfs_delete_volfile_checksum (glusterfs_ctx_t *ctx,
const char *volfile_id);
-
+int
+xlator_memrec_free (xlator_t *xl);
#endif /* _XLATOR_H */
diff --git a/tests/volume.rc b/tests/volume.rc
index d57aa93..f9e16c5 100644
--- a/tests/volume.rc
+++ b/tests/volume.rc
@@ -797,26 +797,53 @@ function count_sh_entries()
ls $1/.glusterfs/indices/xattrop | grep -v "xattrop-" | wc -l
}
+function check_brick_multiplex() {
+ cnt="$(ls /var/log/glusterfs/bricks|wc -l)"
+ local ret=$($CLI volume info|grep "cluster.brick-multiplex"|cut -d" " -f2)
+ local bcnt="$(brick_count)"
+
+ if [ $bcnt -ne 1 ]; then
+ if [ "$ret" = "on" ] || [ $cnt -eq 1 ]; then
+ echo "Y"
+ else
+ echo "N"
+ fi
+ else
+ echo "N"
+ fi
+}
+
function get_fd_count {
local vol=$1
local host=$2
local brick=$3
local fname=$4
+ local val="$(check_brick_multiplex)"
local gfid_str=$(gf_gfid_xattr_to_str $(gf_get_gfid_xattr $brick/$fname))
local statedump=$(generate_brick_statedump $vol $host $brick)
- local count=$(grep "gfid=$gfid_str" $statedump -A2 -B1 | grep $brick -A3 | grep -w fd-count | cut -f2 -d'=' | tail -1)
+ if [ $val == "N" ]; then
+ count=$(grep "gfid=$gfid_str" $statedump -A2 | grep fd-count | cut -f2 -d'=' | tail -1)
+ else
+ count=$(grep "${brick}.active.1" -A3 $statedump | grep "gfid=$gfid_str" -A2 | grep fd-count | cut -f2 -d'=' | tail -1)
+ fi
rm -f $statedump
echo $count
}
+
function get_active_fd_count {
local vol=$1
local host=$2
local brick=$3
local fname=$4
+ local val="$(check_brick_multiplex)"
local gfid_str=$(gf_gfid_xattr_to_str $(gf_get_gfid_xattr $brick/$fname))
local statedump=$(generate_brick_statedump $vol $host $brick)
- local count=$(grep "gfid=$gfid_str" $statedump -A2 -B1 | grep $brick -A3 | grep -w active-fd-count | cut -f2 -d'=' | tail -1)
+ if [ $val == "N" ]; then
+ count=$(grep "gfid=$gfid_str" $statedump -A2 | grep fd-count | cut -f2 -d'=' | tail -1)
+ else
+ count=$(grep "${brick}.active.1" -A3 $statedump | grep "gfid=$gfid_str" -A2 | grep fd-count | cut -f2 -d'=' | tail -1)
+ fi
rm -f $statedump
echo $count
}
diff --git a/xlators/features/changelog/src/changelog-rpc.c b/xlators/features/changelog/src/changelog-rpc.c
index 5524e43..ccb22b5 100644
--- a/xlators/features/changelog/src/changelog-rpc.c
+++ b/xlators/features/changelog/src/changelog-rpc.c
@@ -255,6 +255,15 @@ changelog_handle_probe (rpcsvc_request_t *req)
changelog_probe_req rpc_req = {0,};
changelog_probe_rsp rpc_rsp = {0,};
+
+ this = req->trans->xl;
+ if (this->cleanup_starting) {
+ gf_msg (this->name, GF_LOG_DEBUG, 0,
+ CHANGELOG_MSG_HANDLE_PROBE_ERROR,
+ "cleanup_starting flag is already set for xl");
+ return 0;
+ }
+
ret = xdr_to_generic (req->msg[0],
&rpc_req, (xdrproc_t)xdr_changelog_probe_req);
if (ret < 0) {
diff --git a/xlators/features/changelog/src/changelog.c b/xlators/features/changelog/src/changelog.c
index a472208..121ab04 100644
--- a/xlators/features/changelog/src/changelog.c
+++ b/xlators/features/changelog/src/changelog.c
@@ -2877,6 +2877,7 @@ void
fini (xlator_t *this)
{
changelog_priv_t *priv = NULL;
+ struct list_head queue = {0, };
priv = this->private;
@@ -2884,6 +2885,10 @@ fini (xlator_t *this)
/* terminate RPC server/threads */
changelog_cleanup_rpc (this, priv);
+ /* call barrier_disable to cancel timer */
+ if (priv->barrier_enabled)
+ __chlog_barrier_disable (this, &queue);
+
/* cleanup barrier related objects */
changelog_barrier_pthread_destroy (priv);
diff --git a/xlators/features/trash/src/trash.c b/xlators/features/trash/src/trash.c
index d114858..35db245 100644
--- a/xlators/features/trash/src/trash.c
+++ b/xlators/features/trash/src/trash.c
@@ -2591,16 +2591,24 @@ fini (xlator_t *this)
GF_VALIDATE_OR_GOTO ("trash", this, out);
priv = this->private;
- inode_table = priv->trash_itable;
if (priv) {
- if (priv->newtrash_dir)
+ inode_table = priv->trash_itable;
+ if (priv->newtrash_dir) {
GF_FREE (priv->newtrash_dir);
- if (priv->oldtrash_dir)
+ priv->newtrash_dir = NULL;
+ }
+ if (priv->oldtrash_dir) {
GF_FREE (priv->oldtrash_dir);
- if (priv->brick_path)
+ priv->oldtrash_dir = NULL;
+ }
+ if (priv->brick_path) {
GF_FREE (priv->brick_path);
- if (priv->eliminate)
+ priv->brick_path = NULL;
+ }
+ if (priv->eliminate) {
wipe_eliminate_path (&priv->eliminate);
+ priv->eliminate = NULL;
+ }
if (inode_table) {
inode_table_destroy (inode_table);
priv->trash_itable = NULL;
diff --git a/xlators/protocol/server/src/server-handshake.c b/xlators/protocol/server/src/server-handshake.c
index 50796d5..cbc93a3 100644
--- a/xlators/protocol/server/src/server-handshake.c
+++ b/xlators/protocol/server/src/server-handshake.c
@@ -475,6 +475,7 @@ server_setvolume (rpcsvc_request_t *req)
glusterfs_ctx_t *ctx = NULL;
struct _child_status *tmp = NULL;
char *subdir_mount = NULL;
+ gf_boolean_t cleanup_starting = _gf_false;
params = dict_new ();
reply = dict_new ();
@@ -574,11 +575,13 @@ server_setvolume (rpcsvc_request_t *req)
"initialised yet. Try again later");
goto fail;
}
+
list_for_each_entry (tmp, &conf->child_status->status_list,
status_list) {
if (strcmp (tmp->name, name) == 0)
break;
}
+
if (!tmp->name) {
gf_msg (this->name, GF_LOG_ERROR, 0,
PS_MSG_CHILD_STATUS_FAILED,
@@ -592,6 +595,7 @@ server_setvolume (rpcsvc_request_t *req)
"Failed to set 'child_up' for xlator %s "
"in the reply dict", tmp->name);
}
+
ret = dict_get_str (params, "process-uuid", &client_uid);
if (ret < 0) {
ret = dict_set_str (reply, "ERROR",
@@ -665,8 +669,27 @@ server_setvolume (rpcsvc_request_t *req)
INTERNAL_LOCKS | POSIX_LOCKS);
}
- if (req->trans->xl_private != client)
+ pthread_mutex_lock (&conf->mutex);
+ if (xl->cleanup_starting) {
+ cleanup_starting = _gf_true;
+ } else if (req->trans->xl_private != client) {
req->trans->xl_private = client;
+ }
+ pthread_mutex_unlock (&conf->mutex);
+
+ if (cleanup_starting) {
+ op_ret = -1;
+ op_errno = EAGAIN;
+
+ ret = dict_set_str (reply, "ERROR",
+ "cleanup flag is set for xlator. "
+ " Try again later");
+ if (ret < 0)
+ gf_msg_debug (this->name, 0, "failed to set error: "
+ "cleanup flag is set for xlator. "
+ "Try again later");
+ goto fail;
+ }
auth_set_username_passwd (params, config_params, client);
if (req->trans->ssl_name) {
diff --git a/xlators/protocol/server/src/server.c b/xlators/protocol/server/src/server.c
index 737bb96..792dfb3 100644
--- a/xlators/protocol/server/src/server.c
+++ b/xlators/protocol/server/src/server.c
@@ -467,7 +467,16 @@ server_rpc_notify (rpcsvc_t *rpc, void *xl, rpcsvc_event_t event,
server_ctx_t *serv_ctx = NULL;
struct timespec grace_ts = {0, };
char *auth_path = NULL;
- int ret = -1;
+ int ret = -1;
+ gf_boolean_t victim_found = _gf_false;
+ char *xlator_name = NULL;
+ glusterfs_ctx_t *ctx = NULL;
+ xlator_t *top = NULL;
+ xlator_list_t **trav_p = NULL;
+ xlator_t *travxl = NULL;
+ uint64_t xprtrefcount = 0;
+ struct _child_status *tmp = NULL;
+
if (!xl || !data) {
gf_msg_callingfn ("server", GF_LOG_WARNING, 0,
@@ -479,6 +488,7 @@ server_rpc_notify (rpcsvc_t *rpc, void *xl, rpcsvc_event_t event,
this = xl;
trans = data;
conf = this->private;
+ ctx = glusterfsd_ctx;
switch (event) {
case RPCSVC_EVENT_ACCEPT:
@@ -626,11 +636,49 @@ unref_transport:
client = trans->xl_private;
if (!client)
break;
+ pthread_mutex_lock (&conf->mutex);
+ list_for_each_entry (tmp, &conf->child_status->status_list,
+ status_list) {
+ if (tmp->name && client->bound_xl &&
+ client->bound_xl->cleanup_starting &&
+ !strcmp (tmp->name, client->bound_xl->name)) {
+ xprtrefcount = GF_ATOMIC_GET (tmp->xprtrefcnt);
+ if (xprtrefcount > 0) {
+ xprtrefcount = GF_ATOMIC_DEC (tmp->xprtrefcnt);
+ if (xprtrefcount == 0)
+ xlator_name = gf_strdup(client->bound_xl->name);
+ }
+ break;
+ }
+ }
+ pthread_mutex_unlock (&conf->mutex);
/* unref only for if (!client->lk_heal) */
if (!conf->lk_heal)
gf_client_unref (client);
+ if (xlator_name) {
+ if (this->ctx->active) {
+ top = this->ctx->active->first;
+ LOCK (&ctx->volfile_lock);
+ for (trav_p = &top->children; *trav_p;
+ trav_p = &(*trav_p)->next) {
+ travxl = (*trav_p)->xlator;
+ if (!travxl->call_cleanup &&
+ strcmp (travxl->name, xlator_name) == 0) {
+ victim_found = _gf_true;
+ break;
+ }
+ }
+ UNLOCK (&ctx->volfile_lock);
+ if (victim_found) {
+ xlator_mem_cleanup (travxl);
+ glusterfs_autoscale_threads (ctx, -1, this);
+ }
+ }
+ GF_FREE (xlator_name);
+ }
+
trans->xl_private = NULL;
break;
default:
@@ -1078,6 +1126,7 @@ init (xlator_t *this)
conf->child_status = GF_CALLOC (1, sizeof (struct _child_status),
gf_server_mt_child_status);
INIT_LIST_HEAD (&conf->child_status->status_list);
+ GF_ATOMIC_INIT (conf->child_status->xprtrefcnt, 0);
/*ret = dict_get_str (this->options, "statedump-path", &statedump_path);
if (!ret) {
@@ -1392,14 +1441,53 @@ server_process_child_event (xlator_t *this, int32_t event, void *data,
int ret = -1;
server_conf_t *conf = NULL;
rpc_transport_t *xprt = NULL;
+ xlator_t *victim = NULL;
+ struct _child_status *tmp = NULL;
GF_VALIDATE_OR_GOTO(this->name, data, out);
conf = this->private;
GF_VALIDATE_OR_GOTO(this->name, conf, out);
+ victim = data;
pthread_mutex_lock (&conf->mutex);
{
+ if (cbk_procnum == GF_CBK_CHILD_UP) {
+ list_for_each_entry (tmp, &conf->child_status->status_list,
+ status_list) {
+ if (tmp->name == NULL)
+ break;
+ if (strcmp (tmp->name, victim->name) == 0)
+ break;
+ }
+ if (tmp->name) {
+ tmp->child_up = _gf_true;
+ } else {
+ tmp = GF_CALLOC (1, sizeof (struct _child_status),
+ gf_server_mt_child_status);
+ INIT_LIST_HEAD (&tmp->status_list);
+ tmp->name = gf_strdup (victim->name);
+ tmp->child_up = _gf_true;
+ list_add_tail (&tmp->status_list,
+ &conf->child_status->status_list);
+ }
+ }
+
+ if (cbk_procnum == GF_CBK_CHILD_DOWN) {
+ list_for_each_entry (tmp, &conf->child_status->status_list,
+ status_list) {
+ if (strcmp (tmp->name, victim->name) == 0) {
+ tmp->child_up = _gf_false;
+ break;
+ }
+ }
+
+ if (!tmp->name)
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ PS_MSG_CHILD_STATUS_FAILED,
+ "No xlator %s is found in "
+ "child status list", victim->name);
+ }
list_for_each_entry (xprt, &conf->xprt_list, list) {
if (!xprt->xl_private) {
continue;
@@ -1433,6 +1521,8 @@ notify (xlator_t *this, int32_t event, void *data, ...)
struct _child_status *tmp = NULL;
gf_boolean_t victim_found = _gf_false;
glusterfs_ctx_t *ctx = NULL;
+ gf_boolean_t xprt_found = _gf_false;
+ uint64_t totxprt = 0;
GF_VALIDATE_OR_GOTO (THIS->name, this, out);
conf = this->private;
@@ -1467,24 +1557,6 @@ notify (xlator_t *this, int32_t event, void *data, ...)
case GF_EVENT_CHILD_UP:
{
- list_for_each_entry (tmp, &conf->child_status->status_list,
- status_list) {
- if (tmp->name == NULL)
- break;
- if (strcmp (tmp->name, victim->name) == 0)
- break;
- }
- if (tmp->name) {
- tmp->child_up = _gf_true;
- } else {
- tmp = GF_CALLOC (1, sizeof (struct _child_status),
- gf_server_mt_child_status);
- INIT_LIST_HEAD (&tmp->status_list);
- tmp->name = gf_strdup (victim->name);
- tmp->child_up = _gf_true;
- list_add_tail (&tmp->status_list,
- &conf->child_status->status_list);
- }
ret = server_process_child_event (this, event, data,
GF_CBK_CHILD_UP);
if (ret) {
@@ -1499,19 +1571,6 @@ notify (xlator_t *this, int32_t event, void *data, ...)
case GF_EVENT_CHILD_DOWN:
{
- list_for_each_entry (tmp, &conf->child_status->status_list,
- status_list) {
- if (strcmp (tmp->name, victim->name) == 0) {
- tmp->child_up = _gf_false;
- break;
- }
- }
- if (!tmp->name)
- gf_msg (this->name, GF_LOG_ERROR, 0,
- PS_MSG_CHILD_STATUS_FAILED,
- "No xlator %s is found in "
- "child status list", victim->name);
-
ret = server_process_child_event (this, event, data,
GF_CBK_CHILD_DOWN);
if (ret) {
@@ -1528,6 +1587,28 @@ notify (xlator_t *this, int32_t event, void *data, ...)
case GF_EVENT_CLEANUP:
conf = this->private;
pthread_mutex_lock (&conf->mutex);
+ /* Calculate total no. of xprt available in list for this
+ brick xlator
+ */
+ list_for_each_entry_safe (xprt, xp_next,
+ &conf->xprt_list, list) {
+ if (!xprt->xl_private) {
+ continue;
+ }
+ if (xprt->xl_private->bound_xl == data) {
+ totxprt++;
+ }
+ }
+
+ list_for_each_entry (tmp, &conf->child_status->status_list,
+ status_list) {
+ if (strcmp (tmp->name, victim->name) == 0) {
+ tmp->child_up = _gf_false;
+ GF_ATOMIC_INIT (tmp->xprtrefcnt, totxprt);
+ break;
+ }
+ }
+
/*
* Disconnecting will (usually) drop the last ref, which will
* cause the transport to be unlinked and freed while we're
@@ -1543,18 +1624,11 @@ notify (xlator_t *this, int32_t event, void *data, ...)
gf_log (this->name, GF_LOG_INFO,
"disconnecting %s",
xprt->peerinfo.identifier);
+ xprt_found = _gf_true;
rpc_transport_disconnect (xprt, _gf_false);
}
}
- list_for_each_entry (tmp, &conf->child_status->status_list,
- status_list) {
- if (strcmp (tmp->name, victim->name) == 0)
- break;
- }
- if (tmp->name && (strcmp (tmp->name, victim->name) == 0)) {
- GF_FREE (tmp->name);
- list_del (&tmp->status_list);
- }
+
pthread_mutex_unlock (&conf->mutex);
if (this->ctx->active) {
top = this->ctx->active->first;
@@ -1562,8 +1636,8 @@ notify (xlator_t *this, int32_t event, void *data, ...)
for (trav_p = &top->children; *trav_p;
trav_p = &(*trav_p)->next) {
travxl = (*trav_p)->xlator;
- if (travxl &&
- strcmp (travxl->name, victim->name) == 0) {
+ if (!travxl->call_cleanup &&
+ strcmp (travxl->name, victim->name) == 0) {
victim_found = _gf_true;
break;
}
@@ -1572,12 +1646,14 @@ notify (xlator_t *this, int32_t event, void *data, ...)
glusterfs_delete_volfile_checksum (ctx,
victim->volfile_id);
UNLOCK (&ctx->volfile_lock);
- if (victim_found)
- (*trav_p) = (*trav_p)->next;
+
glusterfs_mgmt_pmap_signout (ctx,
victim->name);
- /* we need the protocol/server xlator here as 'this' */
- glusterfs_autoscale_threads (ctx, -1, this);
+
+ if (!xprt_found && victim_found) {
+ xlator_mem_cleanup (victim);
+ glusterfs_autoscale_threads (ctx, -1, this);
+ }
}
break;
diff --git a/xlators/protocol/server/src/server.h b/xlators/protocol/server/src/server.h
index ea15b56..af987aa 100644
--- a/xlators/protocol/server/src/server.h
+++ b/xlators/protocol/server/src/server.h
@@ -77,7 +77,7 @@ struct _child_status {
struct list_head status_list;
char *name;
gf_boolean_t child_up;
-
+ gf_atomic_t xprtrefcnt;
};
struct server_conf {
rpcsvc_t *rpc;
diff --git a/xlators/storage/posix/src/posix-helpers.c b/xlators/storage/posix/src/posix-helpers.c
index 334175d..49f9f46 100644
--- a/xlators/storage/posix/src/posix-helpers.c
+++ b/xlators/storage/posix/src/posix-helpers.c
@@ -1921,6 +1921,12 @@ out:
return NULL;
abort:
+ LOCK (&priv->lock);
+ {
+ priv->health_check_active = _gf_false;
+ }
+ UNLOCK (&priv->lock);
+
/* health-check failed */
gf_msg (this->name, GF_LOG_EMERG, 0, P_MSG_HEALTHCHECK_FAILED,
"health-check failed, going down");
@@ -1961,18 +1967,18 @@ abort:
for (trav_p = &top->children; *trav_p;
trav_p = &(*trav_p)->next) {
victim = (*trav_p)->xlator;
- if (victim &&
- strcmp (victim->name, priv->base_path) == 0) {
+ if (!victim->call_cleanup &&
+ strcmp (victim->name, priv->base_path) == 0) {
victim_found = _gf_true;
break;
}
}
UNLOCK (&ctx->volfile_lock);
- if (victim_found) {
+ if (victim_found && !victim->cleanup_starting) {
gf_log (THIS->name, GF_LOG_INFO, "detaching not-only "
" child %s", priv->base_path);
+ victim->cleanup_starting = 1;
top->notify (top, GF_EVENT_CLEANUP, victim);
- xlator_mem_cleanup (victim);
}
}
diff --git a/xlators/storage/posix/src/posix.c b/xlators/storage/posix/src/posix.c
index 74ee98f..c680e3f 100644
--- a/xlators/storage/posix/src/posix.c
+++ b/xlators/storage/posix/src/posix.c
@@ -7899,12 +7899,13 @@ fini (xlator_t *this)
struct posix_private *priv = this->private;
if (!priv)
return;
- this->private = NULL;
- if (priv->health_check) {
+ LOCK (&priv->lock);
+ if (priv->health_check_active) {
priv->health_check_active = _gf_false;
pthread_cancel (priv->health_check);
priv->health_check = 0;
}
+ UNLOCK (&priv->lock);
if (priv->disk_space_check) {
priv->disk_space_check_active = _gf_false;
pthread_cancel (priv->disk_space_check);
@@ -7929,6 +7930,7 @@ fini (xlator_t *this)
GF_FREE (priv->hostname);
GF_FREE (priv->trash_path);
GF_FREE (priv);
+ this->private = NULL;
return;
}
--
1.8.3.1
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