From: Radoslaw Zarzynski <rzarzyns@redhat.com>
Date: Thu, 9 Jun 2022 18:44:10 +0000 (+0000)
Subject: osd: log the number of 'dups' entries in a PG Log
X-Git-Tag: v16.2.11~507^2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=f9cdf5919f08e2954f22bcf38fa847cfaad47e69;p=ceph.git

osd: log the number of 'dups' entries in a PG Log

We really want to have the ability to know how many
entries `PGLog::IndexedLog::dups` has inside.
The current ways are either invasive (stopping an OSD)
or indirect (examination of `dump_mempools`).

The code comes from Nitzan Mordechai (part of
ede37edd79a9d5560dfb417ec176327edfc0e4a3).

Fixes: https://tracker.ceph.com/issues/55982
Signed-off-by: Radoslaw Zarzynski <rzarzyns@redhat.com>
(cherry picked from commit 8f1c8a7309976098644bb978d2c1095089522846)
---

diff --git a/src/osd/PeeringState.cc b/src/osd/PeeringState.cc
index c8483ac55c46..9709f3ce1444 100644
--- a/src/osd/PeeringState.cc
+++ b/src/osd/PeeringState.cc
@@ -4234,6 +4234,8 @@ void PeeringState::append_log(
 
   psdout(10) << __func__ << " approx pg log length =  "
 	     << pg_log.get_log().approx_size() << dendl;
+  psdout(10) << __func__ << " dups pg log length =  "
+	     << pg_log.get_log().dups.size() << dendl;
   psdout(10) << __func__ << " transaction_applied = "
 	     << transaction_applied << dendl;
   if (!transaction_applied || async)