openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

ceph: connect to export targets if mds is laggy 

If an MDS we are talking to may have failed, we need to open sessions to
its potential export targets to ensure that any in-progress migration that
may have involved some of our caps is properly handled.

Signed-off-by: Sage Weil <sage@newdream.net>
This commit is contained in:
Sage Weil 2010-06-21 13:38:35 -07:00
parent ed0552a1a2
commit cb170a2215
1 changed files with 15 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
fs/ceph/mds_client.c
View File

@ -2470,6 +2470,21 @@ static void check_new_map(struct ceph_mds_client *mdsc,
wake_up_session_caps(s, 1);
}
}
for (i = 0; i < newmap->m_max_mds && i < mdsc->max_sessions; i++) {
s = mdsc->sessions[i];
if (!s)
continue;
if (!ceph_mdsmap_is_laggy(newmap, i))
continue;
if (s->s_state == CEPH_MDS_SESSION_OPEN ||
s->s_state == CEPH_MDS_SESSION_HUNG ||
s->s_state == CEPH_MDS_SESSION_CLOSING) {
dout(" connecting to export targets of laggy mds%d\n",
i);
__open_export_target_sessions(mdsc, s);
}
}
}