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authorSaravanakumar Arumugam <sarumuga@redhat.com>2016-06-06 14:44:35 +0530
committerAravinda VK <avishwan@redhat.com>2016-06-10 00:20:17 -0700
commitc62493efadbcf5085bbd65a409eed9391301c154 (patch)
treed13f573215812f2a807c41a69f5246628a15e6cc /xlators/mgmt/glusterd/src/glusterd-geo-rep.c
parent79dfe7d197ced45bd3b84f71d5c889e95f4dec1a (diff)
glusterd/geo-rep: Avoid started status check if same host
After carrying out add-brick, session creation is carried out again, to involve new brick in the session. This needs to be done, even if the session is in Started state. While involving slave uuid as part of a session, User is warned if session is in Started state. This check needs to be avoided if it is same slave host and session creation needs to be proceeded. Change-Id: Ic73edd5bd9e3ee55da96f5aceec0bafa14d3f3dd BUG: 1342979 Signed-off-by: Saravanakumar Arumugam <sarumuga@redhat.com> Reviewed-on: http://review.gluster.org/14653 CentOS-regression: Gluster Build System <jenkins@build.gluster.com> Smoke: Gluster Build System <jenkins@build.gluster.com> NetBSD-regression: NetBSD Build System <jenkins@build.gluster.org> Reviewed-by: Aravinda VK <avishwan@redhat.com>
Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd-geo-rep.c')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-geo-rep.c91
1 files changed, 65 insertions, 26 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-geo-rep.c b/xlators/mgmt/glusterd/src/glusterd-geo-rep.c
index 341e2f91b8d..ba047ede642 100644
--- a/xlators/mgmt/glusterd/src/glusterd-geo-rep.c
+++ b/xlators/mgmt/glusterd/src/glusterd-geo-rep.c
@@ -583,6 +583,7 @@ struct dictidxmark {
struct slave_vol_config {
char old_slvhost[_POSIX_HOST_NAME_MAX+1];
+ char old_slvuser[_POSIX_LOGIN_NAME_MAX];
unsigned old_slvidx;
char slave_voluuid[GF_UUID_BUF_SIZE];
};
@@ -2879,8 +2880,14 @@ get_slavehost_from_voluuid (dict_t *dict, char *key, data_t *value, void *data)
/* To go past username in non-root geo-rep session */
tmp = strchr (slave_host, '@');
- if (tmp)
+ if (tmp) {
+ strncpy (slave_vol->old_slvuser, slave_host,
+ (tmp - slave_host));
+ slave_vol->old_slvuser[(tmp - slave_host) + 1]
+ = '\0';
slave_host = tmp + 1;
+ } else
+ strcpy (slave_vol->old_slvuser, "root");
tmp = strchr (slave_host, ':');
if (!tmp) {
@@ -2893,7 +2900,7 @@ get_slavehost_from_voluuid (dict_t *dict, char *key, data_t *value, void *data)
strncpy (slave_vol->old_slvhost, slave_host,
(tmp - slave_host));
- slave_vol->old_slvhost[(tmp - slave_host)+1] = '\0';
+ slave_vol->old_slvhost[(tmp - slave_host) + 1] = '\0';
goto out;
}
@@ -2965,6 +2972,11 @@ glusterd_op_stage_gsync_create (dict_t *dict, char **op_errstr)
int ret_status = 0;
char *statedir = NULL;
char statefiledir[PATH_MAX] = {0,};
+ gf_boolean_t is_different_slavehost = _gf_false;
+ gf_boolean_t is_different_username = _gf_false;
+ char *slave_user = NULL;
+ char *save_ptr = NULL;
+ char *slave_url_buf = NULL;
this = THIS;
GF_ASSERT (this);
@@ -3226,32 +3238,57 @@ glusterd_op_stage_gsync_create (dict_t *dict, char **op_errstr)
slave_vol, slave_host);
goto out;
}
- /* Now, check whether session is already started, if so, warn!*/
- ret = snprintf (old_confpath, sizeof(old_confpath) - 1,
- "%s/"GEOREP"/%s_%s_%s/gsyncd.conf",
- conf->workdir, volinfo->volname,
- slave1.old_slvhost, slave_vol);
- /* construct old slave url with (old) slave host */
- old_slave_url = old_slave_url_info;
- strncpy (old_slave_url, slave1.old_slvhost,
- sizeof(old_slave_url_info));
- old_slave_url = strcat (old_slave_url, "::");
- old_slave_url = strncat (old_slave_url, slave_vol,
- sizeof(old_slave_url_info));
+ /* Now, check whether session is already started.If so, warn!*/
+ is_different_slavehost =
+ (strcmp (slave_host, slave1.old_slvhost) != 0)
+ ? _gf_true : _gf_false;
- ret = glusterd_check_gsync_running_local (volinfo->volname,
- old_slave_url,
- old_confpath,
- &is_running);
- if (_gf_true == is_running) {
- snprintf (errmsg, sizeof(errmsg), "Geo"
- " -replication session between %s and %s"
- " is still active. Please stop the "
- "session and retry.",
- volinfo->volname, old_slave_url);
- ret = -1;
- goto out;
+ if (strstr (slave_url, "@")) {
+ slave_url_buf = gf_strdup (slave_url);
+ if (!slave_url_buf) {
+ gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
+ GD_MSG_NO_MEMORY,
+ "Unable to allocate memory");
+ ret = -1;
+ goto out;
+ }
+ slave_user = strtok_r (slave_url_buf, "@", &save_ptr);
+ } else
+ slave_user = "root";
+ is_different_username =
+ (strcmp (slave_user, slave1.old_slvuser) != 0)
+ ? _gf_true : _gf_false;
+
+ /* Do the check, only if different slave host/slave user */
+ if (is_different_slavehost || is_different_username) {
+ ret = snprintf (old_confpath, sizeof(old_confpath) - 1,
+ "%s/"GEOREP"/%s_%s_%s/gsyncd.conf",
+ conf->workdir, volinfo->volname,
+ slave1.old_slvhost, slave_vol);
+
+ /* construct old slave url with (old) slave host */
+ old_slave_url = old_slave_url_info;
+ strncpy (old_slave_url, slave1.old_slvhost,
+ sizeof(old_slave_url_info));
+ old_slave_url = strcat (old_slave_url, "::");
+ old_slave_url = strncat (old_slave_url, slave_vol,
+ sizeof(old_slave_url_info));
+
+ ret = glusterd_check_gsync_running_local (
+ volinfo->volname,
+ old_slave_url,
+ old_confpath,
+ &is_running);
+ if (_gf_true == is_running) {
+ snprintf (errmsg, sizeof(errmsg), "Geo"
+ "-replication session between %s and %s"
+ " is still active. Please stop the "
+ "session and retry.",
+ volinfo->volname, old_slave_url);
+ ret = -1;
+ goto out;
+ }
}
ret = dict_set_dynstr_with_alloc (dict, "old_slavehost",
@@ -3292,6 +3329,8 @@ out:
if (ret && errmsg[0] != '\0')
*op_errstr = gf_strdup (errmsg);
+ if (slave_url_buf)
+ GF_FREE (slave_url_buf);
gf_msg_debug (this->name, 0, "Returning %d", ret);
return ret;