From: Samuel Just <sjust@redhat.com>
Date: Fri, 15 May 2015 20:05:40 +0000 (-0700)
Subject: OSDMonitor: disallow ec pools as tiers
X-Git-Tag: v0.94.3~67^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=refs%2Fpull%2F4961%2Fhead;p=ceph.git

OSDMonitor: disallow ec pools as tiers

Fixes: 11650
Signed-off-by: Samuel Just <sjust@redhat.com>
(cherry picked from commit 11b7801bb57cb25cd2d26d58722d49691747725b)
---

diff --git a/qa/workunits/cephtool/test.sh b/qa/workunits/cephtool/test.sh
index e1773f20cf87..081d13b97d22 100755
--- a/qa/workunits/cephtool/test.sh
+++ b/qa/workunits/cephtool/test.sh
@@ -325,6 +325,13 @@ function test_tiering()
   ceph osd pool delete snap_base snap_base --yes-i-really-really-mean-it
   ceph osd pool delete snap_cache snap_cache --yes-i-really-really-mean-it
 
+  # make sure we can't create an ec pool tier
+  ceph osd pool create eccache 2 2 erasure
+  ceph osd pool create repbase 2
+  expect_false ceph osd tier add repbase eccache
+  ceph osd pool delete repbase repbase --yes-i-really-really-mean-it
+  ceph osd pool delete eccache eccache --yes-i-really-really-mean-it
+
   # convenient add-cache command
   ceph osd pool create cache3 2
   ceph osd tier add-cache slow cache3 1024000
diff --git a/src/mon/OSDMonitor.cc b/src/mon/OSDMonitor.cc
index dc9b8784b662..79b519a06391 100644
--- a/src/mon/OSDMonitor.cc
+++ b/src/mon/OSDMonitor.cc
@@ -6112,6 +6112,12 @@ done:
       err = -ENOTEMPTY;
       goto reply;
     }
+    if (tp->ec_pool()) {
+      ss << "tier pool '" << tierpoolstr
+	 << "' is an ec pool, which cannot be a tier";
+      err = -ENOTSUP;
+      goto reply;
+    }
     if (!tp->removed_snaps.empty() || !tp->snaps.empty()) {
       ss << "tier pool '" << tierpoolstr << "' has snapshot state; it cannot be added as a tier without breaking the pool";
       err = -ENOTEMPTY;