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From 85d0f78a989304cfe4ee74840f22bacf6685a659 Mon Sep 17 00:00:00 2001
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From: Sunny Kumar <sunkumar@redhat.com>
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Date: Tue, 2 Jan 2018 12:25:33 +0530
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Subject: [PATCH 118/128] snapshot : after brick reset/replace snapshot
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 creation fails
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Problem : after brick reset/replace snapshot creation fails
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Solution : During brick reset/replace when we validate and aggrigate
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           dictionary data from another node it was rewriting
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           'mount_dir' value to NULL which is critical for snapshot
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           creation.
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Upstream patch : https://review.gluster.org/c/19049/
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>BUG: 1512451
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>Signed-off-by: Sunny Kumar <sunkumar@redhat.com>
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Change-Id: Iabefbfcef7d8ac4cbd2a241e821c0e51492c093e
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BUG: 1507394
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Signed-off-by: Sunny Kumar <sunkumar@redhat.com>
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Reviewed-on: https://code.engineering.redhat.com/gerrit/126712
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Tested-by: RHGS Build Bot <nigelb@redhat.com>
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Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
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---
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 xlators/mgmt/glusterd/src/glusterd-replace-brick.c | 30 +++++++++++++++-------
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 xlators/mgmt/glusterd/src/glusterd-reset-brick.c   | 27 ++++++++++++-------
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 xlators/mgmt/glusterd/src/glusterd-utils.c         |  9 -------
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 3 files changed, 39 insertions(+), 27 deletions(-)
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diff --git a/xlators/mgmt/glusterd/src/glusterd-replace-brick.c b/xlators/mgmt/glusterd/src/glusterd-replace-brick.c
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index 0e28608..b11adf1 100644
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--- a/xlators/mgmt/glusterd/src/glusterd-replace-brick.c
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+++ b/xlators/mgmt/glusterd/src/glusterd-replace-brick.c
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@@ -309,16 +309,28 @@ glusterd_op_stage_replace_brick (dict_t *dict, char **op_errstr,
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                 /* A bricks mount dir is required only by snapshots which were
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                  * introduced in gluster-3.6.0
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                  */
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-                ret = glusterd_get_brick_mount_dir (dst_brickinfo->path,
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-                                                    dst_brickinfo->hostname,
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-                                                    dst_brickinfo->mount_dir);
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-                if (ret) {
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-                        gf_msg (this->name, GF_LOG_ERROR, 0,
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-                                GD_MSG_BRICK_MOUNTDIR_GET_FAIL,
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-                                "Failed to get brick mount_dir");
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-                        goto out;
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-                }
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+                if (!(gf_uuid_compare (dst_brickinfo->uuid, MY_UUID))) {
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+                        ret = glusterd_get_brick_mount_dir
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+                                        (dst_brickinfo->path,
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+                                         dst_brickinfo->hostname,
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+                                         dst_brickinfo->mount_dir);
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+                        if (ret) {
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+                                gf_msg (this->name, GF_LOG_ERROR, 0,
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+                                        GD_MSG_BRICK_MOUNTDIR_GET_FAIL,
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+                                        "Failed to get brick mount_dir");
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+                                goto out;
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+                        }
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+                        ret = dict_set_dynstr_with_alloc
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+                                        (rsp_dict, "brick1.mount_dir",
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+                                         dst_brickinfo->mount_dir);
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+                        if (ret) {
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+                                gf_msg (this->name, GF_LOG_ERROR, 0,
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+                                        GD_MSG_DICT_SET_FAILED,
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+                                        "Failed to set brick.mount_dir");
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+                                goto out;
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+                        }
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+                }
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                 ret = dict_set_int32 (rsp_dict, "brick_count", 1);
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                 if (ret) {
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diff --git a/xlators/mgmt/glusterd/src/glusterd-reset-brick.c b/xlators/mgmt/glusterd/src/glusterd-reset-brick.c
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index 10ee6f4..c1de043 100644
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--- a/xlators/mgmt/glusterd/src/glusterd-reset-brick.c
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+++ b/xlators/mgmt/glusterd/src/glusterd-reset-brick.c
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@@ -197,15 +197,24 @@ glusterd_reset_brick_prevalidate (dict_t *dict, char **op_errstr,
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         }
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-        ret = glusterd_get_brick_mount_dir
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-                        (dst_brickinfo->path,
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-                         dst_brickinfo->hostname,
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-                         dst_brickinfo->mount_dir);
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-        if (ret) {
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-                gf_msg (this->name, GF_LOG_ERROR, 0,
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-                        GD_MSG_BRICK_MOUNTDIR_GET_FAIL,
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-                        "Failed to get brick mount_dir.");
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-                goto out;
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+        if (!(gf_uuid_compare (dst_brickinfo->uuid, MY_UUID))) {
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+                ret = glusterd_get_brick_mount_dir (dst_brickinfo->path,
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+                                                    dst_brickinfo->hostname,
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+                                                    dst_brickinfo->mount_dir);
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+                if (ret) {
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+                        gf_msg (this->name, GF_LOG_ERROR, 0,
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+                                GD_MSG_BRICK_MOUNTDIR_GET_FAIL,
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+                                "Failed to get brick mount_dir");
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+                        goto out;
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+                }
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+                ret = dict_set_dynstr_with_alloc (rsp_dict, "brick1.mount_dir",
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+                                                  dst_brickinfo->mount_dir);
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+                if (ret) {
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+                        gf_msg (this->name, GF_LOG_ERROR, 0,
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+                                GD_MSG_DICT_SET_FAILED,
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+                                "Failed to set brick.mount_dir");
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+                        goto out;
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+                }
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         }
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         ret = dict_set_int32 (rsp_dict, "brick_count", 1);
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diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c
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index 4b53898..1b2cc43 100644
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--- a/xlators/mgmt/glusterd/src/glusterd-utils.c
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+++ b/xlators/mgmt/glusterd/src/glusterd-utils.c
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@@ -13696,15 +13696,6 @@ glusterd_brick_op_prerequisites (dict_t *dict,
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                                         (*src_brickinfo)->port);
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                         }
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                 }
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-                /* setting mount_dir */
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-                ret = dict_set_dynstr_with_alloc (rsp_dict, "brick1.mount_dir",
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-                                                  (*src_brickinfo)->mount_dir);
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-                if (ret) {
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-                        gf_msg (this->name, GF_LOG_ERROR, 0,
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-                                GD_MSG_DICT_SET_FAILED,
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-                                "Failed to set brick1.mount_dir");
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-                        goto out;
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-                }
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                 v = *volinfo;
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                 b = *src_brickinfo;
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-- 
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1.8.3.1
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