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authorKrishnan Parthasarathi <kp@gluster.com>2011-10-18 12:02:00 +0530
committerVijay Bellur <vijay@gluster.com>2011-10-19 03:19:56 -0700
commit7dcc94cf1f255aca043a27ae3bf3a99bfc37f785 (patch)
treea93271a91f76e7ad336623b1121e50e64a7267a0
parentb80a2a150b874031df35af8d4f06657906024861 (diff)
glusterd: Refactored rb subcmds code and fixed some minor issues.v3.2.5qa2
Change-Id: Ie14492451cab821e7ed60e68dbaff22d7d78fba9 BUG: 3709 Reviewed-on: http://review.gluster.com/609 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amar@gluster.com> Reviewed-by: Vijay Bellur <vijay@gluster.com>
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-op-sm.c400
1 files changed, 143 insertions, 257 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-op-sm.c b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
index 42aec46..de64e8b 100644
--- a/xlators/mgmt/glusterd/src/glusterd-op-sm.c
+++ b/xlators/mgmt/glusterd/src/glusterd-op-sm.c
@@ -3160,24 +3160,10 @@ rb_destroy_maintenance_client (glusterd_volinfo_t *volinfo,
glusterd_conf_t *priv = NULL;
char cmd_str[8192] = {0,};
char filename[PATH_MAX] = {0,};
- struct stat buf;
- char mount_point_path[PATH_MAX] = {0,};
int ret = -1;
priv = THIS->private;
- snprintf (mount_point_path, PATH_MAX, "%s/vols/%s/%s",
- priv->workdir, volinfo->volname,
- RB_CLIENT_MOUNTPOINT);
-
- ret = stat (mount_point_path, &buf);
- if (ret) {
- gf_log ("", GF_LOG_DEBUG,
- "stat failed. Cannot destroy maintenance "
- "client");
- goto out;
- }
-
snprintf (cmd_str, 8192, "/bin/umount -f %s/vols/%s/%s",
priv->workdir, volinfo->volname,
RB_CLIENT_MOUNTPOINT);
@@ -3270,186 +3256,6 @@ out:
}
static int
-rb_do_operation_start (glusterd_volinfo_t *volinfo,
- glusterd_brickinfo_t *src_brickinfo,
- glusterd_brickinfo_t *dst_brickinfo)
-{
- char start_value[8192] = {0,};
- int ret = -1;
-
-
- gf_log ("", GF_LOG_DEBUG,
- "replace-brick sending start xattr");
-
- ret = rb_spawn_maintenance_client (volinfo, src_brickinfo);
- if (ret) {
- gf_log ("", GF_LOG_DEBUG,
- "Could not spawn maintenance "
- "client");
- goto out;
- }
-
- gf_log ("", GF_LOG_DEBUG,
- "mounted the replace brick client");
-
- snprintf (start_value, 8192, "%s:%s:%d",
- dst_brickinfo->hostname,
- dst_brickinfo->path,
- dst_brickinfo->port);
-
-
- ret = rb_send_xattr_command (volinfo, src_brickinfo,
- dst_brickinfo, RB_PUMP_START_CMD,
- start_value);
- if (ret) {
- gf_log ("", GF_LOG_DEBUG,
- "Failed to send command to pump");
- }
-
- ret = rb_destroy_maintenance_client (volinfo, src_brickinfo);
- if (ret) {
- gf_log ("", GF_LOG_DEBUG,
- "Failed to destroy maintenance "
- "client");
- goto out;
- }
-
- gf_log ("", GF_LOG_DEBUG,
- "unmounted the replace brick client");
- ret = 0;
-
-out:
- return ret;
-}
-
-static int
-rb_do_operation_pause (glusterd_volinfo_t *volinfo,
- glusterd_brickinfo_t *src_brickinfo,
- glusterd_brickinfo_t *dst_brickinfo)
-{
- int ret = -1;
-
- gf_log ("", GF_LOG_INFO,
- "replace-brick send pause xattr");
-
- ret = rb_spawn_maintenance_client (volinfo, src_brickinfo);
- if (ret) {
- gf_log ("", GF_LOG_DEBUG,
- "Could not spawn maintenance "
- "client");
- goto out;
- }
-
- gf_log ("", GF_LOG_DEBUG,
- "mounted the replace brick client");
-
- ret = rb_send_xattr_command (volinfo, src_brickinfo,
- dst_brickinfo, RB_PUMP_PAUSE_CMD,
- "jargon");
- if (ret) {
- gf_log ("", GF_LOG_DEBUG,
- "Failed to send command to pump");
-
- }
-
- ret = rb_destroy_maintenance_client (volinfo, src_brickinfo);
- if (ret) {
- gf_log ("", GF_LOG_DEBUG,
- "Failed to destroy maintenance "
- "client");
- goto out;
- }
-
-
- gf_log ("", GF_LOG_DEBUG,
- "unmounted the replace brick client");
-
- ret = 0;
-
-out:
- if (!glusterd_is_local_addr (src_brickinfo->hostname)) {
- ret = rb_src_brick_restart (volinfo, src_brickinfo,
- 0);
- if (ret) {
- gf_log ("", GF_LOG_DEBUG,
- "Could not restart src-brick");
- }
- }
- return ret;
-}
-
-static int
-rb_kill_destination_brick (glusterd_volinfo_t *volinfo,
- glusterd_brickinfo_t *dst_brickinfo)
-{
- glusterd_conf_t *priv = NULL;
- char pidfile[PATH_MAX] = {0,};
-
- priv = THIS->private;
-
- snprintf (pidfile, PATH_MAX, "%s/vols/%s/%s",
- priv->workdir, volinfo->volname,
- RB_DSTBRICK_PIDFILE);
-
- return glusterd_service_stop ("brick", pidfile, SIGTERM, _gf_true);
-}
-
-static int
-rb_do_operation_abort (glusterd_volinfo_t *volinfo,
- glusterd_brickinfo_t *src_brickinfo,
- glusterd_brickinfo_t *dst_brickinfo)
-{
- int ret = -1;
-
- gf_log ("", GF_LOG_DEBUG,
- "replace-brick sending abort xattr");
-
- ret = rb_spawn_maintenance_client (volinfo, src_brickinfo);
- if (ret) {
- gf_log ("", GF_LOG_DEBUG,
- "Could not spawn maintenance "
- "client");
- goto out;
- }
-
- gf_log ("", GF_LOG_DEBUG,
- "mounted the replace brick client");
-
- ret = rb_send_xattr_command (volinfo, src_brickinfo,
- dst_brickinfo, RB_PUMP_ABORT_CMD,
- "jargon");
- if (ret) {
- gf_log ("", GF_LOG_DEBUG,
- "Failed to send command to pump");
- }
-
- ret = rb_destroy_maintenance_client (volinfo, src_brickinfo);
- if (ret) {
- gf_log ("", GF_LOG_DEBUG,
- "Failed to destroy maintenance "
- "client");
- goto out;
- }
-
- gf_log ("", GF_LOG_DEBUG,
- "unmounted the replace brick client");
-
- ret = 0;
-
-out:
- if (!glusterd_is_local_addr (src_brickinfo->hostname)) {
- ret = rb_src_brick_restart (volinfo, src_brickinfo,
- 0);
- if (ret) {
- gf_log ("", GF_LOG_DEBUG,
- "Could not restart src-brick");
- }
- }
- return ret;
-}
-
-
-static int
rb_get_xattr_command (glusterd_volinfo_t *volinfo,
glusterd_brickinfo_t *src_brickinfo,
glusterd_brickinfo_t *dst_brickinfo,
@@ -3492,78 +3298,132 @@ out:
}
static int
-rb_do_operation_status (glusterd_volinfo_t *volinfo,
- glusterd_brickinfo_t *src_brickinfo,
- glusterd_brickinfo_t *dst_brickinfo)
+rb_send_cmd (glusterd_volinfo_t *volinfo,
+ glusterd_brickinfo_t *src,
+ glusterd_brickinfo_t *dst,
+ int op)
{
- char status[8192] = {0,};
- char *status_reply = NULL;
- dict_t *ctx = NULL;
- int ret = 0;
- gf_boolean_t origin = _gf_false;
+ char start_value[8192] = {0,};
+ char status[8192] = {0,};
+ char *status_reply = NULL;
+ dict_t *ctx = NULL;
+ int ret = 0;
- ctx = glusterd_op_get_ctx (GD_OP_REPLACE_BRICK);
- if (!ctx) {
- gf_log ("", GF_LOG_ERROR,
- "Operation Context is not present");
- goto out;
- }
+ GF_ASSERT (volinfo);
+ GF_ASSERT (src);
+ GF_ASSERT (dst);
+ GF_ASSERT ((op > GF_REPLACE_OP_NONE)
+ && (op <= GF_REPLACE_OP_COMMIT_FORCE));
- origin = _gf_true;
+ switch (op) {
+ case GF_REPLACE_OP_START:
+ {
+ snprintf (start_value, 8192, "%s:%s:%d",
+ dst->hostname, dst->path, dst->port);
- if (origin) {
- ret = rb_spawn_maintenance_client (volinfo, src_brickinfo);
- if (ret) {
- gf_log ("", GF_LOG_DEBUG,
- "Could not spawn maintenance "
- "client");
- goto out;
+ ret = rb_send_xattr_command (volinfo, src, dst,
+ RB_PUMP_START_CMD,
+ start_value);
}
+ break;
- gf_log ("", GF_LOG_DEBUG,
- "mounted the replace brick client");
+ case GF_REPLACE_OP_PAUSE:
+ {
+ ret = rb_send_xattr_command (volinfo, src, dst,
+ RB_PUMP_PAUSE_CMD,
+ "jargon");
+ }
+ break;
- ret = rb_get_xattr_command (volinfo, src_brickinfo,
- dst_brickinfo, RB_PUMP_STATUS_CMD,
- status);
- if (ret) {
- gf_log ("", GF_LOG_DEBUG,
- "Failed to get status from pump");
- goto umount;
+ case GF_REPLACE_OP_ABORT:
+ {
+ ret = rb_send_xattr_command (volinfo, src, dst,
+ RB_PUMP_ABORT_CMD,
+ "jargon");
}
+ break;
- gf_log ("", GF_LOG_DEBUG,
- "pump status is %s", status);
+ case GF_REPLACE_OP_STATUS:
+ {
+ ret = rb_get_xattr_command (volinfo, src, dst,
+ RB_PUMP_STATUS_CMD,
+ status);
+ ctx = glusterd_op_get_ctx (GD_OP_REPLACE_BRICK);
+ GF_ASSERT (ctx);
+ if (!ctx) {
+ ret = -1;
+ gf_log (THIS->name, GF_LOG_CRITICAL,
+ "ctx is not present.");
+ goto out;
+ }
+ status_reply = gf_strdup (status);
+ ret = dict_set_dynstr (ctx, "status-reply",
+ status_reply);
+ if (ret)
+ gf_log (THIS->name, GF_LOG_ERROR, "Couldn't "
+ "set rb status response in context.");
+ }
+ break;
- status_reply = gf_strdup (status);
- if (!status_reply) {
- gf_log ("", GF_LOG_ERROR, "Out of memory");
+ default:
+ {
+ GF_ASSERT (0);
ret = -1;
- goto umount;
+ gf_log (THIS->name, GF_LOG_CRITICAL, "Invalid replace"
+ " brick subcommand.");
}
+ break;
+ }
- ret = dict_set_dynstr (ctx, "status-reply",
- status_reply);
- if (ret) {
- gf_log ("", GF_LOG_DEBUG,
- "failed to set pump status in ctx");
+out:
+ return ret;
+}
- }
+static int
+rb_do_operation (glusterd_volinfo_t *volinfo,
+ glusterd_brickinfo_t *src_brickinfo,
+ glusterd_brickinfo_t *dst_brickinfo,
+ int op)
+{
+ int ret = -1;
- umount:
- ret = rb_destroy_maintenance_client (volinfo, src_brickinfo);
- if (ret) {
- gf_log ("", GF_LOG_DEBUG,
- "Failed to destroy maintenance "
- "client");
- goto out;
- }
+ ret = rb_spawn_maintenance_client (volinfo, src_brickinfo);
+ if (ret) {
+ gf_log ("", GF_LOG_DEBUG,
+ "Could not spawn maintenance "
+ "client");
+ goto umount;
}
- gf_log ("", GF_LOG_DEBUG,
- "unmounted the replace brick client");
-out:
+ ret = rb_send_cmd (volinfo, src_brickinfo, dst_brickinfo, op);
+ if (ret)
+ gf_log (THIS->name, GF_LOG_DEBUG, "Sending replace-brick "
+ "subcmd failed.");
+
+umount:
+ if (rb_destroy_maintenance_client (volinfo, src_brickinfo))
+ gf_log ("", GF_LOG_DEBUG,
+ "Failed to destroy maintenance "
+ "client");
+
return ret;
+
+}
+
+static int
+rb_kill_destination_brick (glusterd_volinfo_t *volinfo,
+ glusterd_brickinfo_t *dst_brickinfo)
+{
+ glusterd_conf_t *priv = NULL;
+ char pidfile[PATH_MAX] = {0,};
+
+ priv = THIS->private;
+
+ snprintf (pidfile, PATH_MAX, "%s/vols/%s/%s",
+ priv->workdir, volinfo->volname,
+ RB_DSTBRICK_PIDFILE);
+
+ return glusterd_service_stop ("brick", pidfile, SIGTERM, _gf_true);
}
/* Set src-brick's port number to be used in the maintainance mount
@@ -3876,8 +3736,9 @@ glusterd_op_replace_brick (dict_t *dict, dict_t *rsp_dict)
"Received pause - doing nothing");
ctx = glusterd_op_get_ctx (GD_OP_REPLACE_BRICK);
if (ctx) {
- ret = rb_do_operation_pause (volinfo, src_brickinfo,
- dst_brickinfo);
+ ret = rb_do_operation (volinfo, src_brickinfo,
+ dst_brickinfo,
+ GF_REPLACE_OP_PAUSE);
if (ret) {
gf_log ("", GF_LOG_ERROR,
"Pause operation failed");
@@ -3885,6 +3746,16 @@ glusterd_op_replace_brick (dict_t *dict, dict_t *rsp_dict)
}
}
+ if (!glusterd_is_local_addr (src_brickinfo->hostname)) {
+ ret = rb_src_brick_restart (volinfo, src_brickinfo,
+ 0);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Couldn't restart src brick "
+ "with pump xlator disabled.");
+ goto out;
+ }
+ }
glusterd_set_rb_status (volinfo, GF_RB_STATUS_PAUSED);
}
break;
@@ -3910,13 +3781,25 @@ glusterd_op_replace_brick (dict_t *dict, dict_t *rsp_dict)
ctx = glusterd_op_get_ctx (GD_OP_REPLACE_BRICK);
if (ctx) {
- ret = rb_do_operation_abort (volinfo, src_brickinfo, dst_brickinfo);
+ ret = rb_do_operation (volinfo, src_brickinfo,
+ dst_brickinfo,
+ GF_REPLACE_OP_ABORT);
if (ret) {
gf_log ("", GF_LOG_ERROR,
"Abort operation failed");
goto out;
}
}
+ if (!glusterd_is_local_addr (src_brickinfo->hostname)) {
+ ret = rb_src_brick_restart (volinfo, src_brickinfo,
+ 0);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Couldn't restart src brick "
+ "with pump xlator disabled.");
+ goto out;
+ }
+ }
glusterd_set_rb_status (volinfo, GF_RB_STATUS_NONE);
glusterd_brickinfo_delete (volinfo->dst_brick);
volinfo->src_brick = volinfo->dst_brick = NULL;
@@ -3939,10 +3822,12 @@ glusterd_op_replace_brick (dict_t *dict, dict_t *rsp_dict)
goto out;
}
- ret = rb_do_operation_status (volinfo, src_brickinfo,
- dst_brickinfo);
+ ret = rb_do_operation (volinfo, src_brickinfo,
+ dst_brickinfo,
+ GF_REPLACE_OP_STATUS);
if (ret)
goto out;
+
}
}
@@ -6926,11 +6811,12 @@ glusterd_do_replace_brick (void *data)
goto out;
}
- ret = rb_do_operation_start (volinfo, src_brickinfo, dst_brickinfo);
- if (ret) {
- glusterd_set_rb_status (volinfo, GF_RB_STATUS_NONE);
+ ret = rb_do_operation (volinfo, src_brickinfo,
+ dst_brickinfo,
+ GF_REPLACE_OP_START);
+ if (ret)
goto out;
- }
+
break;
case GF_REPLACE_OP_PAUSE:
case GF_REPLACE_OP_ABORT: