From: Dan van der Ster <dan.vanderster@clyso.com>
Date: Tue, 9 Dec 2025 17:49:33 +0000 (-0800)
Subject: mds: enable osdc op throttles
X-Git-Tag: v21.0.0~168^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=e5abac30b2e8d024e5aab14de6e92e5781b17e1d;p=ceph.git

mds: enable osdc op throttles

The MDS has some internal throttles, e.g. via the Filer, but these
don't cover all ops, e.g. journal ops.
Enable the osdc op throttles to prevent the MDS from queuing up ops
without bound, which is a known cause of MDS OOMs.

Fixes: https://tracker.ceph.com/issues/71136
Signed-off-by: Dan van der Ster <dan.vanderster@clyso.com>
---

diff --git a/src/mds/MDSRank.cc b/src/mds/MDSRank.cc
index 02816d700c53..a21bdd4fd8b3 100644
--- a/src/mds/MDSRank.cc
+++ b/src/mds/MDSRank.cc
@@ -506,6 +506,7 @@ MDSRank::MDSRank(
   purge_queue.update_op_limit(*mdsmap);
 
   objecter->unset_honor_pool_full();
+  objecter->set_balanced_budget();
 
   finisher = new Finisher(cct, "MDSRank", "mds-rank-fin");