iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

staging: lustre: obd: MDT mount fails on MDS w/o MGS on it

Browse Source 
If we specify multiple --mgsnode for a MDT, when we start MDS upon
it while MGS is no the other node, the MGC import connection will
always select the local nid (which is one of the candidate mgsnode)
since it think its the closest connection.

This patch treats further --mgsnode nids as failover nids, so that
multiple import connections are added for the MGC import.

Signed-off-by: Bobi Jam <bobijam.xu@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3829
Reviewed-on: http://review.whamcloud.com/7509
Reviewed-by: Liang Zhen <liang.zhen@intel.com>
Reviewed-by: Lai Siyao <lai.siyao@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bobi Jam 2016-04-12 16:14:08 -04:00 committed by Greg Kroah-Hartman
parent 32cc01c42f
commit 489d82fcd8
1 changed files with 8 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
drivers/staging/lustre/lustre/obdclass/obd_mount.c
View File

@ -307,7 +307,8 @@ int lustre_start_mgc(struct super_block *sb)
while (class_parse_nid(ptr, &nid, &ptr) == 0) {
rc = do_lcfg(mgcname, nid,
LCFG_ADD_UUID, niduuid, NULL, NULL, NULL);
i++;
if (!rc)
i++;
/* Stop at the first failover nid */
if (*ptr == ':')
break;
@ -345,16 +346,18 @@ int lustre_start_mgc(struct super_block *sb)
sprintf(niduuid, "%s_%x", mgcname, i);
j = 0;
while (class_parse_nid_quiet(ptr, &nid, &ptr) == 0) {
j++;
rc = do_lcfg(mgcname, nid,
LCFG_ADD_UUID, niduuid, NULL, NULL, NULL);
rc = do_lcfg(mgcname, nid, LCFG_ADD_UUID, niduuid,
NULL, NULL, NULL);
if (!rc)
++j;
if (*ptr == ':')
break;
}
if (j > 0) {
rc = do_lcfg(mgcname, 0, LCFG_ADD_CONN,
niduuid, NULL, NULL, NULL);
i++;
if (!rc)
i++;
} else {
/* at ":/fsname" */
break;