From b1d047caeacbcfac4222759af9d5936b7cfd1d7c Mon Sep 17 00:00:00 2001 From: Atin Mukherjee Date: Thu, 3 Dec 2015 14:54:32 +0530 Subject: glusterd: Disallow peer with existing volumes to be probed in cluster As of now we do allow peer to get added in the trusted storage pool even if it has a volume configured. This is definitely not a supported configuration and can lead to issues as we never claim to support merging clusters. A single node running a standalone volume can be considered as a cluster. Change-Id: Id0cf42d6e5f20d6bfdb7ee19d860eee67c7c45be BUG: 1287992 Signed-off-by: Atin Mukherjee Reviewed-on: http://review.gluster.org/12864 Tested-by: NetBSD Build System Reviewed-by: Kaushal M Tested-by: Gluster Build System --- xlators/mgmt/glusterd/src/glusterd-handler.c | 5 +++-- xlators/mgmt/glusterd/src/glusterd-handshake.c | 4 ++-- xlators/mgmt/glusterd/src/glusterd-utils.c | 19 +++++++++++++++++++ xlators/mgmt/glusterd/src/glusterd-utils.h | 3 +++ 4 files changed, 27 insertions(+), 4 deletions(-) (limited to 'xlators/mgmt/glusterd/src') diff --git a/xlators/mgmt/glusterd/src/glusterd-handler.c b/xlators/mgmt/glusterd/src/glusterd-handler.c index fca5857cc93..3c4516b76e0 100644 --- a/xlators/mgmt/glusterd/src/glusterd-handler.c +++ b/xlators/mgmt/glusterd/src/glusterd-handler.c @@ -3826,8 +3826,9 @@ set_probe_error_str (int op_ret, int op_errno, char *op_errstr, char *errstr, } else { switch (op_errno) { case GF_PROBE_ANOTHER_CLUSTER: - snprintf (errstr, len, "%s is already part of " - "another cluster", hostname); + snprintf (errstr, len, "%s is either already " + "part of another cluster or having " + "volumes configured", hostname); break; case GF_PROBE_VOLUME_CONFLICT: diff --git a/xlators/mgmt/glusterd/src/glusterd-handshake.c b/xlators/mgmt/glusterd/src/glusterd-handshake.c index 755b7aab555..756e48965c2 100644 --- a/xlators/mgmt/glusterd/src/glusterd-handshake.c +++ b/xlators/mgmt/glusterd/src/glusterd-handshake.c @@ -987,7 +987,7 @@ out: /* Validate if glusterd can serve the management handshake request * * Requests are allowed if, - * - glusterd has no peers, or + * - glusterd has no peers & no volumes, or * - the request came from a known peer * A known peer is identified using the following steps * - the dict is checked for a peer uuid, which if present is matched with the @@ -1007,7 +1007,7 @@ gd_validate_mgmt_hndsk_req (rpcsvc_request_t *req, dict_t *dict) this = THIS; GF_ASSERT (this); - if (!glusterd_have_peers ()) + if (!glusterd_have_peers () && !glusterd_have_volumes ()) return _gf_true; ret = dict_get_str (dict, GD_PEER_ID_KEY, &uuid_str); diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c index 1c32201202a..848d0cce462 100644 --- a/xlators/mgmt/glusterd/src/glusterd-utils.c +++ b/xlators/mgmt/glusterd/src/glusterd-utils.c @@ -4542,6 +4542,25 @@ glusterd_all_volumes_with_quota_stopped () return _gf_true; } +gf_boolean_t +glusterd_have_volumes () +{ + xlator_t *this = NULL; + glusterd_conf_t *priv = NULL; + gf_boolean_t volumes_exist = _gf_false; + + this = THIS; + GF_VALIDATE_OR_GOTO ("glusterd", (this != NULL), out); + + priv = this->private; + GF_VALIDATE_OR_GOTO (this->name, (priv != NULL), out); + + + volumes_exist = !cds_list_empty (&priv->volumes); +out: + return volumes_exist; +} + int glusterd_volume_count_get (void) { diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.h b/xlators/mgmt/glusterd/src/glusterd-utils.h index 8636e46bf57..622a6352b22 100644 --- a/xlators/mgmt/glusterd/src/glusterd-utils.h +++ b/xlators/mgmt/glusterd/src/glusterd-utils.h @@ -626,6 +626,9 @@ glusterd_check_client_op_version_support (char *volname, uint32_t op_version, gf_boolean_t glusterd_have_peers (); +gf_boolean_t +glusterd_have_volumes (); + void glusterd_get_rebalance_volfile (glusterd_volinfo_t *volinfo, char *path, int path_len); -- cgit