From 548895f0333a0706ec9475efc3b28456d591f093 Mon Sep 17 00:00:00 2001

From: Gaurav Yadav <gyadav@redhat.com>

Date: Fri, 27 Oct 2017 16:04:46 +0530

Subject: [PATCH 41/74] glusterd: persist brickinfo's port change into

 glusterd's store

Problem:

Consider a case where node reboot is performed and prior to reboot

brick was listening to 49153. Post reboot glusterd assigned 49152

to brick and started the brick process but the new port was never

persisted. Now when glusterd restarts glusterd always read the port

from its persisted store i.e 49153 however pmap signin happens with

the correct port i.e 49152.

Fix:

Make sure when glusterd_brick_start is called, glusterd_store_volinfo is

eventually invoked.

>upstream mainline patch : https://review.gluster.org/#/c/18579/

Change-Id: Ic0efbd48c51d39729ed951a42922d0e59f7115a1

Signed-off-by: Gaurav Yadav <gyadav@redhat.com>

Reviewed-on: https://code.engineering.redhat.com/gerrit/121878

Reviewed-by: Atin Mukherjee <amukherj@redhat.com>

Tested-by: Atin Mukherjee <amukherj@redhat.com>

Tested-by: RHGS Build Bot <nigelb@redhat.com>

---

 xlators/mgmt/glusterd/src/glusterd-handshake.c      | 18 +++++++++---------

 xlators/mgmt/glusterd/src/glusterd-op-sm.c          |  9 ++++++++-

 xlators/mgmt/glusterd/src/glusterd-server-quorum.c  | 16 ++++++++++++++++

 xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c | 10 ++++++++++

 xlators/mgmt/glusterd/src/glusterd-utils.c          | 19 +++++++++++++++++++

 5 files changed, 62 insertions(+), 10 deletions(-)

diff --git a/xlators/mgmt/glusterd/src/glusterd-handshake.c b/xlators/mgmt/glusterd/src/glusterd-handshake.c

index c7e419c..8dfb528 100644

--- a/xlators/mgmt/glusterd/src/glusterd-handshake.c

+++ b/xlators/mgmt/glusterd/src/glusterd-handshake.c

@@ -658,6 +658,15 @@ glusterd_create_missed_snap (glusterd_missed_snap_info *missed_snapinfo,

         }

         brickinfo->snap_status = 0;

+        ret = glusterd_brick_start (snap_vol, brickinfo, _gf_false);

+        if (ret) {

+                gf_msg (this->name, GF_LOG_WARNING, 0,

+                        GD_MSG_BRICK_DISCONNECTED, "starting the "

+                        "brick %s:%s for the snap %s failed",

+                        brickinfo->hostname, brickinfo->path,

+                        snap->snapname);

+                goto out;

+        }

         ret = glusterd_store_volinfo (snap_vol,

                                       GLUSTERD_VOLINFO_VER_AC_NONE);

         if (ret) {

@@ -668,15 +677,6 @@ glusterd_create_missed_snap (glusterd_missed_snap_info *missed_snapinfo,

                 goto out;

         }

-        ret = glusterd_brick_start (snap_vol, brickinfo, _gf_false);

-        if (ret) {

-                gf_msg (this->name, GF_LOG_WARNING, 0,

-                        GD_MSG_BRICK_DISCONNECTED, "starting the "

-                        "brick %s:%s for the snap %s failed",

-                        brickinfo->hostname, brickinfo->path,

-                        snap->snapname);

-                goto out;

-        }

 out:

         if (device)

                 GF_FREE (device);

diff --git a/xlators/mgmt/glusterd/src/glusterd-op-sm.c b/xlators/mgmt/glusterd/src/glusterd-op-sm.c

index 96e0860..9641b4f 100644

--- a/xlators/mgmt/glusterd/src/glusterd-op-sm.c

+++ b/xlators/mgmt/glusterd/src/glusterd-op-sm.c

@@ -2415,8 +2415,15 @@ glusterd_start_bricks (glusterd_volinfo_t *volinfo)

                                   brickinfo->path);

                         goto out;

                 }

-        }

+        }

+        ret = glusterd_store_volinfo (volinfo, GLUSTERD_VOLINFO_VER_AC_NONE);

+        if (ret) {

+                gf_msg (THIS->name, GF_LOG_ERROR, 0, GD_MSG_VOLINFO_STORE_FAIL,

+                        "Failed to write volinfo for volume %s",

+                        volinfo->volname);

+                goto out;

+        }

         ret = 0;

 out:

         return ret;

diff --git a/xlators/mgmt/glusterd/src/glusterd-server-quorum.c b/xlators/mgmt/glusterd/src/glusterd-server-quorum.c

index a4637f8..659ff9d 100644

--- a/xlators/mgmt/glusterd/src/glusterd-server-quorum.c

+++ b/xlators/mgmt/glusterd/src/glusterd-server-quorum.c

@@ -12,6 +12,7 @@

 #include "glusterd-utils.h"

 #include "glusterd-messages.h"

 #include "glusterd-server-quorum.h"

+#include "glusterd-store.h"

 #include "glusterd-syncop.h"

 #include "glusterd-op-sm.h"

@@ -309,6 +310,7 @@ void

 glusterd_do_volume_quorum_action (xlator_t *this, glusterd_volinfo_t *volinfo,

                                   gf_boolean_t meets_quorum)

 {

+        int                   ret           = -1;

         glusterd_brickinfo_t *brickinfo     = NULL;

         gd_quorum_status_t   quorum_status  = NOT_APPLICABLE_QUORUM;

         gf_boolean_t         follows_quorum = _gf_false;

@@ -365,6 +367,20 @@ glusterd_do_volume_quorum_action (xlator_t *this, glusterd_volinfo_t *volinfo,

                         glusterd_brick_start (volinfo, brickinfo, _gf_false);

         }

         volinfo->quorum_status = quorum_status;

+        if (quorum_status == MEETS_QUORUM) {

+                /* bricks might have been restarted and so as the port change

+                 * might have happened

+                 */

+                ret = glusterd_store_volinfo (volinfo,

+                                              GLUSTERD_VOLINFO_VER_AC_NONE);

+                if (ret) {

+                        gf_msg (this->name, GF_LOG_ERROR, 0,

+                                GD_MSG_VOLINFO_STORE_FAIL,

+                                "Failed to write volinfo for volume %s",

+                                volinfo->volname);

+                        goto out;

+                }

+        }

 out:

         return;

 }

diff --git a/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c b/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c

index 6fb49c3..4cbade1 100644

--- a/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c

+++ b/xlators/mgmt/glusterd/src/glusterd-snapshot-utils.c

@@ -1680,6 +1680,16 @@ glusterd_import_friend_snap (dict_t *peer_data, int32_t snap_count,

                 }

                 if (glusterd_is_volume_started (snap_vol)) {

                         (void) glusterd_start_bricks (snap_vol);

+                        ret = glusterd_store_volinfo

+                                               (snap_vol,

+                                                GLUSTERD_VOLINFO_VER_AC_NONE);

+                        if (ret) {

+                                gf_msg (this->name, GF_LOG_ERROR, 0,

+                                        GD_MSG_VOLINFO_STORE_FAIL, "Failed to "

+                                        "write volinfo for volume %s",

+                                        snap_vol->volname);

+                                goto out;

+                        }

                 } else {

                         (void) glusterd_stop_bricks(snap_vol);

                 }

diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c

index f34e218..bb236df 100644

--- a/xlators/mgmt/glusterd/src/glusterd-utils.c

+++ b/xlators/mgmt/glusterd/src/glusterd-utils.c

@@ -6003,6 +6003,15 @@ glusterd_restart_bricks (glusterd_conf_t *conf)

                                 glusterd_brick_start (volinfo, brickinfo,

                                                      _gf_false);

                         }

+                        ret = glusterd_store_volinfo

+                                (volinfo, GLUSTERD_VOLINFO_VER_AC_NONE);

+                        if (ret) {

+                                gf_msg (this->name, GF_LOG_ERROR, 0,

+                                        GD_MSG_VOLINFO_STORE_FAIL, "Failed to "

+                                        "write volinfo for volume %s",

+                                        volinfo->volname);

+                                goto out;

+                        }

                 }

         }

@@ -6034,6 +6043,16 @@ glusterd_restart_bricks (glusterd_conf_t *conf)

                                 glusterd_brick_start (volinfo, brickinfo,

                                                       _gf_false);

                         }

+                        ret = glusterd_store_volinfo

+                                (volinfo, GLUSTERD_VOLINFO_VER_AC_NONE);

+                        if (ret) {

+                                gf_msg (this->name, GF_LOG_ERROR, 0,

+                                        GD_MSG_VOLINFO_STORE_FAIL, "Failed to "

+                                        "write volinfo for volume %s",

+                                        volinfo->volname);

+                                goto out;

+                        }

+

                 }

         }

         ret = 0;

-- 

1.8.3.1