From: Samuel Just <samuel.just@dreamhost.com>
Date: Wed, 18 May 2011 17:40:33 +0000 (-0700)
Subject: PG: prefer log with longer tail
X-Git-Tag: v0.28.1~26^2~21
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=9b9797978c88313f4d38f7dbfe6bb57263b8c0b4;p=ceph.git

PG: prefer log with longer tail

Signed-off-by: Samuel Just <samuel.just@dreamhost.com>
---

diff --git a/src/osd/PG.cc b/src/osd/PG.cc
index cf3565d27495..54966cfdd7e5 100644
--- a/src/osd/PG.cc
+++ b/src/osd/PG.cc
@@ -1342,7 +1342,9 @@ bool PG::choose_log_location(const PgPriorSet &prior_set,
     if (prior_set.cur.find(i->first) == prior_set.cur.end()) {
       continue;
     }
-    if (i->second.last_update > best_info->last_update) {
+    if (i->second.last_update > best_info->last_update ||
+	((i->second.last_update == best_info->last_update) &&
+	 (i->second.log_tail < best_info->log_tail))) {
       best_info = &(i->second);
       pull_from = i->first;
       newest_update = i->second.last_update;