From 61e5ddbb1dd68f82cbf44d2be0e89d030e9aa42b Mon Sep 17 00:00:00 2001 From: Igor Golikov Date: Tue, 10 Feb 2026 08:10:09 +0000 Subject: [PATCH] mds: add comment re: rank0 perf metrics collection Signed-off-by: Igor Golikov --- src/mds/MetricsHandler.cc | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/mds/MetricsHandler.cc b/src/mds/MetricsHandler.cc index 61f5b88771a..c309eb1fd1d 100644 --- a/src/mds/MetricsHandler.cc +++ b/src/mds/MetricsHandler.cc @@ -64,6 +64,9 @@ Dispatcher::dispatch_result_t MetricsHandler::ms_dispatch2(const ref_t void MetricsHandler::init() { dout(10) << dendl; + // Create local perf counters for non-rank0 MDS only. Rank0's perf counters + // are created by MetricAggregator::update_rank_perf_metrics() to avoid + // duplicate counters (MetricAggregator creates counters for all ranks). if (mds->get_nodeid() != 0 && !rank_perf_counters) { std::string labels = ceph::perf_counters::key_create( "mds_rank_perf", -- 2.47.3