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From df8fdd1d7fab692169a667fcc07c652fcc5e2ad7 Mon Sep 17 00:00:00 2001
From: Atin Mukherjee <amukherj@redhat.com>
Date: Wed, 5 Oct 2016 14:59:51 +0530
Subject: [PATCH 317/361] glusterd: daemon restart logic should adhere server
 side quorum

Just like brick processes, other daemon services should also follow the same
logic of quorum checks to see if a particular service needs to come up if
glusterd is restarted or the incoming friend add/update request is received
(in glusterd_restart_bricks () function)

mainline:
> BUG: 1383893
> Reviewed-on: https://review.gluster.org/15626
> Smoke: Gluster Build System <jenkins@build.gluster.org>
> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org>
> CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
> Reviewed-by: Prashanth Pai <ppai@redhat.com>
(cherry picked from commit 5a6f509263a810ca21a22bbbd1e6ffcf43b70d18)

BUG: 1381825
Change-Id: I54a1fbdaa1571cc45eed627181b81463fead47a3
Signed-off-by: Atin Mukherjee <amukherj@redhat.com>
Reviewed-on: https://code.engineering.redhat.com/gerrit/101298
Tested-by: Milind Changire <mchangir@redhat.com>
---
 .../bug-1383893-daemons-to-follow-quorum.t         |  57 +++++
 xlators/mgmt/glusterd/src/glusterd-utils.c         | 235 +--------------------
 2 files changed, 64 insertions(+), 228 deletions(-)
 create mode 100644 tests/bugs/glusterd/bug-1383893-daemons-to-follow-quorum.t

diff --git a/tests/bugs/glusterd/bug-1383893-daemons-to-follow-quorum.t b/tests/bugs/glusterd/bug-1383893-daemons-to-follow-quorum.t
new file mode 100644
index 0000000..105292a
--- /dev/null
+++ b/tests/bugs/glusterd/bug-1383893-daemons-to-follow-quorum.t
@@ -0,0 +1,57 @@
+#!/bin/bash
+
+# This test checks for if shd or any other daemons brought down (apart from
+# brick processes) is not brought up automatically when glusterd on the other
+# node is (re)started
+
+. $(dirname $0)/../../include.rc
+. $(dirname $0)/../../volume.rc
+. $(dirname $0)/../../cluster.rc
+
+function shd_up_status_1 {
+        $CLI_1 volume status | grep "localhost" | grep "Self-heal Daemon" | awk '{print $7}'
+}
+
+function shd_up_status_2 {
+        $CLI_2 volume status | grep "localhost" | grep "Self-heal Daemon" | awk '{print $7}'
+}
+
+function get_shd_pid_2 {
+        $CLI_2 volume status | grep "localhost" | grep "Self-heal Daemon" | awk '{print $8}'
+}
+cleanup;
+
+TEST launch_cluster 3
+
+TEST $CLI_1 peer probe $H2;
+EXPECT_WITHIN $PROBE_TIMEOUT 1  peer_count
+
+TEST $CLI_1 peer probe $H3;
+EXPECT_WITHIN $PROBE_TIMEOUT 2  peer_count
+
+# Lets create the volume
+TEST $CLI_1 volume create $V0 replica 2 $H1:$B1/${V0}1 $H2:$B2/${V0}2
+
+# Start the volume
+TEST $CLI_1 volume start $V0
+
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "1" brick_up_status_1 $V0 $H1 $B1/${V0}1
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "1" brick_up_status_1 $V0 $H2 $B2/${V0}2
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "Y" shd_up_status_1
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "Y" shd_up_status_2
+
+# Bring down shd on 2nd node
+kill -15 $(get_shd_pid_2)
+
+# Bring down glusterd on 1st node
+TEST kill_glusterd 1
+
+#Bring back 1st glusterd
+TEST $glusterd_1
+
+# We need to wait till PROCESS_UP_TIMEOUT and then check shd service does not
+# come up on node 2
+sleep $PROCESS_UP_TIMEOUT
+EXPECT "N" shd_up_status_2
+
+cleanup;
diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c
index 9e9d609..91cc12e 100644
--- a/xlators/mgmt/glusterd/src/glusterd-utils.c
+++ b/xlators/mgmt/glusterd/src/glusterd-utils.c
@@ -4902,10 +4902,6 @@ glusterd_restart_bricks (glusterd_conf_t *conf)
         cds_list_for_each_entry (volinfo, &conf->volumes, vol_list) {
                 if (volinfo->status != GLUSTERD_STATUS_STARTED)
                         continue;
-                if (start_svcs == _gf_false) {
-                        start_svcs = _gf_true;
-                        glusterd_svcs_manager (NULL);
-                }
                 gf_msg_debug (this->name, 0, "starting the volume %s",
                         volinfo->volname);
 
@@ -4928,6 +4924,11 @@ glusterd_restart_bricks (glusterd_conf_t *conf)
                          */
                         continue;
                 } else {
+                        if (start_svcs == _gf_false) {
+                                start_svcs = _gf_true;
+                                glusterd_svcs_manager (NULL);
+                        }
+
                         cds_list_for_each_entry (brickinfo, &volinfo->bricks,
                                                  brick_list) {
                                 glusterd_brick_start (volinfo, brickinfo,
@@ -4940,8 +4941,8 @@ glusterd_restart_bricks (glusterd_conf_t *conf)
                 cds_list_for_each_entry (volinfo, &snap->volumes, vol_list) {
                         if (volinfo->status != GLUSTERD_STATUS_STARTED)
                                 continue;
-                        /* Check the quorum, if quorum is not met, don't start the
-                           bricks
+                        /* Check the quorum, if quorum is not met, don't start
+                         * the bricks
                         */
                         ret = check_quorum_for_brick_start (volinfo,
                                                             node_quorum);
@@ -9403,228 +9404,6 @@ out:
 }
 
 int
-<<<<<<< 07a9e00a5702e76932142e9d9cdc2df601632b7a
-=======
-glusterd_volume_tier_use_rsp_dict (dict_t *aggr, dict_t *rsp_dict)
-{
-        char                 key[256]      = {0,};
-        char                *node_uuid     = NULL;
-        char                *node_uuid_str = NULL;
-        char                *volname       = NULL;
-        dict_t              *ctx_dict      = NULL;
-        double               elapsed_time  = 0;
-        glusterd_volinfo_t  *volinfo       = NULL;
-        int                  ret           = 0;
-        int32_t              index         = 0;
-        int32_t              count         = 0;
-        int32_t              value32       = 0;
-        uint64_t             value         = 0;
-        xlator_t            *this           = NULL;
-        char                *task_id_str   = NULL;
-
-        this = THIS;
-        GF_VALIDATE_OR_GOTO (this->name, this, out);
-        GF_VALIDATE_OR_GOTO (this->name, rsp_dict, out);
-
-        if (aggr) {
-                ctx_dict = aggr;
-
-        } else {
-                 gf_msg (this->name, GF_LOG_ERROR, 0,
-                         GD_MSG_OPCTX_GET_FAIL,
-                         "Operation Context is not present");
-                goto out;
-        }
-
-        if (!ctx_dict)
-                goto out;
-
-        ret = dict_get_str (ctx_dict, "volname", &volname);
-        if (ret) {
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        GD_MSG_DICT_GET_FAILED,
-                        "Unable to get volume name");
-                goto out;
-        }
-
-        ret  = glusterd_volinfo_find (volname, &volinfo);
-
-        if (ret)
-                goto out;
-
-        ret = dict_get_int32 (rsp_dict, "count", &index);
-        if (ret)
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                        GD_MSG_DICT_GET_FAILED,
-                        "failed to get index");
-
-        memset (key, 0, 256);
-        snprintf (key, 256, "node-uuid-%d", index);
-        ret = dict_get_str (rsp_dict, key, &node_uuid);
-        if (!ret) {
-                node_uuid_str = gf_strdup (node_uuid);
-
-        }
-        ret = dict_get_int32 (ctx_dict, "count", &count);
-        count++;
-        ret = dict_set_int32 (ctx_dict, "count", count);
-        if (ret)
-                gf_msg (this->name, GF_LOG_ERROR, 0,
-                                GD_MSG_DICT_SET_FAILED,
-                                "Failed to set count");
-
-        memset (key, 0, 256);
-        snprintf (key, 256, "node-uuid-%d", count);
-        ret = dict_set_dynstr (ctx_dict, key, node_uuid_str);
-        if (ret) {
-                gf_msg_debug (this->name, 0,
-                                "failed to set node-uuid");
-        }
-
-        snprintf (key, 256, "files-%d", index);
-        ret = dict_get_uint64 (rsp_dict, key, &value);
-        if (!ret) {
-                memset (key, 0, 256);
-                snprintf (key, 256, "files-%d", count);
-                ret = dict_set_uint64 (ctx_dict, key, value);
-                if (ret) {
-                        gf_msg_debug (this->name, 0,
-                                "failed to set the file count");
-                }
-        }
-
-        memset (key, 0, 256);
-        snprintf (key, 256, "size-%d", index);
-        ret = dict_get_uint64 (rsp_dict, key, &value);
-        if (!ret) {
-                memset (key, 0, 256);
-                snprintf (key, 256, "size-%d", count);
-                ret = dict_set_uint64 (ctx_dict, key, value);
-                if (ret) {
-                        gf_msg_debug (this->name, 0,
-                                "failed to set the size of migration");
-                }
-        }
-
-        memset (key, 0, 256);
-        snprintf (key, 256, "lookups-%d", index);
-        ret = dict_get_uint64 (rsp_dict, key, &value);
-        if (!ret) {
-                memset (key, 0, 256);
-                snprintf (key, 256, "lookups-%d", count);
-                ret = dict_set_uint64 (ctx_dict, key, value);
-                if (ret) {
-                        gf_msg_debug (this->name, 0,
-                                "failed to set looked up file count");
-                }
-        }
-
-        memset (key, 0, 256);
-        snprintf (key, 256, "status-%d", index);
-        ret = dict_get_int32 (rsp_dict, key, &value32);
-        if (!ret) {
-                memset (key, 0, 256);
-                snprintf (key, 256, "status-%d", count);
-                ret = dict_set_int32 (ctx_dict, key, value32);
-                if (ret) {
-                        gf_msg_debug (this->name, 0,
-                                "failed to set status");
-                }
-        }
-
-        memset (key, 0, 256);
-        snprintf (key, 256, "failures-%d", index);
-        ret = dict_get_uint64 (rsp_dict, key, &value);
-        if (!ret) {
-                memset (key, 0, 256);
-                snprintf (key, 256, "failures-%d", count);
-                ret = dict_set_uint64 (ctx_dict, key, value);
-                if (ret) {
-                        gf_msg_debug (this->name, 0,
-                                "failed to set failure count");
-                }
-        }
-
-        memset (key, 0, 256);
-        snprintf (key, 256, "skipped-%d", index);
-        ret = dict_get_uint64 (rsp_dict, key, &value);
-        if (!ret) {
-                memset (key, 0, 256);
-                snprintf (key, 256, "skipped-%d", count);
-                ret = dict_set_uint64 (ctx_dict, key, value);
-                if (ret) {
-                        gf_msg_debug (this->name, 0,
-                                "failed to set skipped count");
-                }
-        }
-        memset (key, 0, 256);
-        snprintf (key, 256, "run-time-%d", index);
-        ret = dict_get_double (rsp_dict, key, &elapsed_time);
-        if (!ret) {
-                memset (key, 0, 256);
-                snprintf (key, 256, "run-time-%d", count);
-                ret = dict_set_double (ctx_dict, key, elapsed_time);
-                if (ret) {
-                        gf_msg_debug (this->name, 0,
-                                "failed to set run-time");
-                }
-        }
-
-        memset (key, 0, 256);
-        snprintf (key, 256, "demoted-%d", index);
-        ret = dict_get_uint64 (rsp_dict, key, &value);
-        if (!ret) {
-                memset (key, 0, 256);
-                snprintf (key, 256, "demoted-%d", count);
-                ret = dict_set_uint64 (ctx_dict, key, value);
-                if (ret) {
-                        gf_msg_debug (this->name, 0,
-                                "failed to set demoted count");
-                }
-        }
-        memset (key, 0, 256);
-        snprintf (key, 256, "promoted-%d", index);
-        ret = dict_get_uint64 (rsp_dict, key, &value);
-        if (!ret) {
-                memset (key, 0, 256);
-                snprintf (key, 256, "promoted-%d", count);
-                ret = dict_set_uint64 (ctx_dict, key, value);
-                if (ret) {
-                        gf_msg_debug (this->name, 0,
-                                "failed to set promoted count");
-                }
-        }
-
-        memset (key, 0, 256);
-        snprintf (key, 256, "time-left-%d", index);
-        ret = dict_get_uint64 (rsp_dict, key, &value);
-        if (!ret) {
-                memset (key, 0, 256);
-                snprintf (key, 256, "time-left-%d", count);
-                ret = dict_set_uint64 (ctx_dict, key, value);
-                if (ret) {
-                        gf_msg_debug (THIS->name, 0,
-                                "failed to set time-left");
-                }
-        }
-
-        ret = dict_get_str (rsp_dict, GF_REMOVE_BRICK_TID_KEY,
-                                &task_id_str);
-        if (ret) {
-                gf_msg_debug (this->name, errno,
-                                "Missing remove-brick-id");
-        } else
-                ret = dict_set_str (ctx_dict, GF_REMOVE_BRICK_TID_KEY,
-                                task_id_str);
-
-        ret = 0;
-
-out:
-        return ret;
-}
-
-int
->>>>>>> dht/rebalance Estimate time to complete rebalance
 glusterd_sys_exec_output_rsp_dict (dict_t *dst, dict_t *src)
 {
         char           output_name[PATH_MAX] = "";
-- 
1.8.3.1