From: Sage Weil <sage@redhat.com>
Date: Thu, 27 Aug 2015 18:08:06 +0000 (-0400)
Subject: osd: refuse to boot if any pre-hammer or old hammer (<v0.94.4) are running
X-Git-Tag: v9.1.0~148^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=38465f0d7065c41070eab6b2326f8a1f0b8de332;p=ceph.git

osd: refuse to boot if any pre-hammer or old hammer (<v0.94.4) are running

Old OSDs don't understand us.

This is useful if the osd is upgraded before the mons.

Signed-off-by: Sage Weil <sage@redhat.com>
---

diff --git a/src/osd/OSD.cc b/src/osd/OSD.cc
index f6a1fed1b0cfc..26a640972a62a 100644
--- a/src/osd/OSD.cc
+++ b/src/osd/OSD.cc
@@ -4441,6 +4441,10 @@ void OSD::_maybe_boot(epoch_t oldest, epoch_t newest)
   } else if (!osdmap->test_flag(CEPH_OSDMAP_SORTBITWISE) &&
 	     !store->can_sort_nibblewise()) {
     dout(1) << "osdmap SORTBITWISE flag is NOT set but our backend does not support nibblewise sort" << dendl;
+  } else if (osdmap->get_num_up_osds() &&
+	     (osdmap->get_up_osd_features() & CEPH_FEATURE_HAMMER_0_94_4) == 0) {
+    dout(1) << "osdmap indicates one or more pre-v0.94.4 hammer OSDs is running"
+	    << dendl;
   } else if (is_waiting_for_healthy() || !_is_healthy()) {
     // if we are not healthy, do not mark ourselves up (yet)
     dout(1) << "not healthy; waiting to boot" << dendl;