osd: calc_pg_upmaps() pick most overfull remap from try_pg_upmap()

Signed-off-by: David Zafman <dzafman@redhat.com>
(cherry picked from commit 3f132061fd33c82dc131e18ae80cbec067b53cae)

diff --git a/src/osd/OSDMap.cc b/src/osd/OSDMap.cc
index 5d3295855635861117b274fe33c337cf6b3ad78d..858b099e9be04f2546419ced742f876ee027e9ce 100644 (file)
--- a/src/osd/OSDMap.cc
+++ b/src/osd/OSDMap.cc
@@ -4262,13 +4262,24 @@ int OSDMap::calc_pg_upmaps(
          continue;
        }
        ceph_assert(orig != out);
+       int pos = -1;
+       float max_dev = 0;
        for (unsigned i = 0; i < out.size(); ++i) {
           if (orig[i] == out[i])
             continue; // skip invalid remappings
           if (existing.count(orig[i]) || existing.count(out[i]))
             continue; // we want new remappings only!
+         if (osd_deviation[orig[i]] > max_dev) {
+           max_dev = osd_deviation[orig[i]];
+           pos = i;
+           ldout(cct, 30) << "Max osd." << orig[i] << " pos " << i << " dev " << osd_deviation[orig[i]] << dendl;
+         }
+       }
+       if (pos != -1) {
+         int i = pos;
           ldout(cct, 10) << " will try adding new remapping pair "
                          << orig[i] << " -> " << out[i] << " for " << pg
+                        << (orig[i] != osd ? " NOT selected osd" : "")
                          << dendl;
           existing.insert(orig[i]);
           existing.insert(out[i]);