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glusterfs/SOURCES/0139-ec-shd-Cleanup-self-he...

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From edc238e40060773f5f5fd59fcdad8ae27d65749f Mon Sep 17 00:00:00 2001
From: Mohammed Rafi KC <rkavunga@redhat.com>
Date: Mon, 29 Apr 2019 13:22:32 +0530
Subject: [PATCH 139/141] ec/shd: Cleanup self heal daemon resources during ec
fini
We were not properly cleaning self-heal daemon resources
during ec fini. With shd multiplexing, it is absolutely
necessary to cleanup all the resources during ec fini.
Back port of
upstream patch: https://review.gluster.org/#/c/glusterfs/+/22644/
>Change-Id: Iae4f1bce7d8c2e1da51ac568700a51088f3cc7f2
>fixes: bz#1703948
>Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
BUG: 1703434
Change-Id: I98ae03178d3176772c62e34baa08a5c35b8f7217
Signed-off-by: Mohammed Rafi KC <rkavunga@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/169994
Tested-by: RHGS Build Bot <nigelb@redhat.com>
Reviewed-by: Sunil Kumar Heggodu Gopala Acharya <sheggodu@redhat.com>
---
libglusterfs/src/syncop-utils.c | 2 +
xlators/cluster/afr/src/afr-self-heald.c | 5 +++
xlators/cluster/ec/src/ec-heald.c | 77 +++++++++++++++++++++++++++-----
xlators/cluster/ec/src/ec-heald.h | 3 ++
xlators/cluster/ec/src/ec-messages.h | 3 +-
xlators/cluster/ec/src/ec.c | 47 +++++++++++++++++++
6 files changed, 124 insertions(+), 13 deletions(-)
diff --git a/libglusterfs/src/syncop-utils.c b/libglusterfs/src/syncop-utils.c
index b842142..4167db4 100644
--- a/libglusterfs/src/syncop-utils.c
+++ b/libglusterfs/src/syncop-utils.c
@@ -354,6 +354,8 @@ syncop_mt_dir_scan(call_frame_t *frame, xlator_t *subvol, loc_t *loc, int pid,
if (frame) {
this = frame->this;
+ } else {
+ this = THIS;
}
/*For this functionality to be implemented in general, we need
diff --git a/xlators/cluster/afr/src/afr-self-heald.c b/xlators/cluster/afr/src/afr-self-heald.c
index 8bc4720..522fe5d 100644
--- a/xlators/cluster/afr/src/afr-self-heald.c
+++ b/xlators/cluster/afr/src/afr-self-heald.c
@@ -524,6 +524,11 @@ afr_shd_full_heal(xlator_t *subvol, gf_dirent_t *entry, loc_t *parent,
afr_private_t *priv = NULL;
priv = this->private;
+
+ if (this->cleanup_starting) {
+ return -ENOTCONN;
+ }
+
if (!priv->shd.enabled)
return -EBUSY;
diff --git a/xlators/cluster/ec/src/ec-heald.c b/xlators/cluster/ec/src/ec-heald.c
index cba111a..edf5e11 100644
--- a/xlators/cluster/ec/src/ec-heald.c
+++ b/xlators/cluster/ec/src/ec-heald.c
@@ -71,6 +71,11 @@ disabled_loop:
break;
}
+ if (ec->shutdown) {
+ healer->running = _gf_false;
+ return -1;
+ }
+
ret = healer->rerun;
healer->rerun = 0;
@@ -241,9 +246,11 @@ ec_shd_index_sweep(struct subvol_healer *healer)
goto out;
}
+ _mask_cancellation();
ret = syncop_mt_dir_scan(NULL, subvol, &loc, GF_CLIENT_PID_SELF_HEALD,
healer, ec_shd_index_heal, xdata,
ec->shd.max_threads, ec->shd.wait_qlength);
+ _unmask_cancellation();
out:
if (xdata)
dict_unref(xdata);
@@ -263,6 +270,11 @@ ec_shd_full_heal(xlator_t *subvol, gf_dirent_t *entry, loc_t *parent,
int ret = 0;
ec = this->private;
+
+ if (this->cleanup_starting) {
+ return -ENOTCONN;
+ }
+
if (ec->xl_up_count <= ec->fragments) {
return -ENOTCONN;
}
@@ -305,11 +317,15 @@ ec_shd_full_sweep(struct subvol_healer *healer, inode_t *inode)
{
ec_t *ec = NULL;
loc_t loc = {0};
+ int ret = -1;
ec = healer->this->private;
loc.inode = inode;
- return syncop_ftw(ec->xl_list[healer->subvol], &loc,
- GF_CLIENT_PID_SELF_HEALD, healer, ec_shd_full_heal);
+ _mask_cancellation();
+ ret = syncop_ftw(ec->xl_list[healer->subvol], &loc,
+ GF_CLIENT_PID_SELF_HEALD, healer, ec_shd_full_heal);
+ _unmask_cancellation();
+ return ret;
}
void *
@@ -317,13 +333,16 @@ ec_shd_index_healer(void *data)
{
struct subvol_healer *healer = NULL;
xlator_t *this = NULL;
+ int run = 0;
healer = data;
THIS = this = healer->this;
ec_t *ec = this->private;
for (;;) {
- ec_shd_healer_wait(healer);
+ run = ec_shd_healer_wait(healer);
+ if (run == -1)
+ break;
if (ec->xl_up_count > ec->fragments) {
gf_msg_debug(this->name, 0, "starting index sweep on subvol %s",
@@ -352,16 +371,12 @@ ec_shd_full_healer(void *data)
rootloc.inode = this->itable->root;
for (;;) {
- pthread_mutex_lock(&healer->mutex);
- {
- run = __ec_shd_healer_wait(healer);
- if (!run)
- healer->running = _gf_false;
- }
- pthread_mutex_unlock(&healer->mutex);
-
- if (!run)
+ run = ec_shd_healer_wait(healer);
+ if (run < 0) {
break;
+ } else if (run == 0) {
+ continue;
+ }
if (ec->xl_up_count > ec->fragments) {
gf_msg(this->name, GF_LOG_INFO, 0, EC_MSG_FULL_SWEEP_START,
@@ -562,3 +577,41 @@ out:
dict_del(output, this->name);
return ret;
}
+
+void
+ec_destroy_healer_object(xlator_t *this, struct subvol_healer *healer)
+{
+ if (!healer)
+ return;
+
+ pthread_cond_destroy(&healer->cond);
+ pthread_mutex_destroy(&healer->mutex);
+}
+
+void
+ec_selfheal_daemon_fini(xlator_t *this)
+{
+ struct subvol_healer *healer = NULL;
+ ec_self_heald_t *shd = NULL;
+ ec_t *priv = NULL;
+ int i = 0;
+
+ priv = this->private;
+ if (!priv)
+ return;
+
+ shd = &priv->shd;
+ if (!shd->iamshd)
+ return;
+
+ for (i = 0; i < priv->nodes; i++) {
+ healer = &shd->index_healers[i];
+ ec_destroy_healer_object(this, healer);
+
+ healer = &shd->full_healers[i];
+ ec_destroy_healer_object(this, healer);
+ }
+
+ GF_FREE(shd->index_healers);
+ GF_FREE(shd->full_healers);
+}
diff --git a/xlators/cluster/ec/src/ec-heald.h b/xlators/cluster/ec/src/ec-heald.h
index 2eda2a7..8184cf4 100644
--- a/xlators/cluster/ec/src/ec-heald.h
+++ b/xlators/cluster/ec/src/ec-heald.h
@@ -24,4 +24,7 @@ ec_selfheal_daemon_init(xlator_t *this);
void
ec_shd_index_healer_wake(ec_t *ec);
+void
+ec_selfheal_daemon_fini(xlator_t *this);
+
#endif /* __EC_HEALD_H__ */
diff --git a/xlators/cluster/ec/src/ec-messages.h b/xlators/cluster/ec/src/ec-messages.h
index 7c28808..ce299bb 100644
--- a/xlators/cluster/ec/src/ec-messages.h
+++ b/xlators/cluster/ec/src/ec-messages.h
@@ -55,6 +55,7 @@ GLFS_MSGID(EC, EC_MSG_INVALID_CONFIG, EC_MSG_HEAL_FAIL,
EC_MSG_CONFIG_XATTR_INVALID, EC_MSG_EXTENSION, EC_MSG_EXTENSION_NONE,
EC_MSG_EXTENSION_UNKNOWN, EC_MSG_EXTENSION_UNSUPPORTED,
EC_MSG_EXTENSION_FAILED, EC_MSG_NO_GF, EC_MSG_MATRIX_FAILED,
- EC_MSG_DYN_CREATE_FAILED, EC_MSG_DYN_CODEGEN_FAILED);
+ EC_MSG_DYN_CREATE_FAILED, EC_MSG_DYN_CODEGEN_FAILED,
+ EC_MSG_THREAD_CLEANUP_FAILED);
#endif /* !_EC_MESSAGES_H_ */
diff --git a/xlators/cluster/ec/src/ec.c b/xlators/cluster/ec/src/ec.c
index 3c8013e..264582a 100644
--- a/xlators/cluster/ec/src/ec.c
+++ b/xlators/cluster/ec/src/ec.c
@@ -429,6 +429,51 @@ ec_disable_delays(ec_t *ec)
}
void
+ec_cleanup_healer_object(ec_t *ec)
+{
+ struct subvol_healer *healer = NULL;
+ ec_self_heald_t *shd = NULL;
+ void *res = NULL;
+ int i = 0;
+ gf_boolean_t is_join = _gf_false;
+
+ shd = &ec->shd;
+ if (!shd->iamshd)
+ return;
+
+ for (i = 0; i < ec->nodes; i++) {
+ healer = &shd->index_healers[i];
+ pthread_mutex_lock(&healer->mutex);
+ {
+ healer->rerun = 1;
+ if (healer->running) {
+ pthread_cond_signal(&healer->cond);
+ is_join = _gf_true;
+ }
+ }
+ pthread_mutex_unlock(&healer->mutex);
+ if (is_join) {
+ pthread_join(healer->thread, &res);
+ is_join = _gf_false;
+ }
+
+ healer = &shd->full_healers[i];
+ pthread_mutex_lock(&healer->mutex);
+ {
+ healer->rerun = 1;
+ if (healer->running) {
+ pthread_cond_signal(&healer->cond);
+ is_join = _gf_true;
+ }
+ }
+ pthread_mutex_unlock(&healer->mutex);
+ if (is_join) {
+ pthread_join(healer->thread, &res);
+ is_join = _gf_false;
+ }
+ }
+}
+void
ec_pending_fops_completed(ec_t *ec)
{
if (ec->shutdown) {
@@ -544,6 +589,7 @@ ec_notify(xlator_t *this, int32_t event, void *data, void *data2)
/* If there aren't pending fops running after we have waken up
* them, we immediately propagate the notification. */
propagate = ec_disable_delays(ec);
+ ec_cleanup_healer_object(ec);
goto unlock;
}
@@ -759,6 +805,7 @@ failed:
void
fini(xlator_t *this)
{
+ ec_selfheal_daemon_fini(this);
__ec_destroy_private(this);
}
--
1.8.3.1