diff --git a/src/plugins/sched/backfill/backfill.c b/src/plugins/sched/backfill/backfill.c
index a48951bba627592f4481d1263bd94b04638295a2..a08d4d4243bbfcd66f4b28fb4857bf62263bd132 100644
--- a/src/plugins/sched/backfill/backfill.c
+++ b/src/plugins/sched/backfill/backfill.c
@@ -1635,6 +1635,11 @@ next_task:
 		     slurmctld_diag_stats.bf_last_depth,
 		     job_test_count, TIME_STR);
 	}
+	if (slurmctld_config.server_thread_count >= 150) {
+		info("backfill: %d pending RPCs at cycle end, consider "
+		     "configuring max_rpc_cnt",
+		     slurmctld_config.server_thread_count);
+	}
 	return rc;
 }
 
diff --git a/src/slurmctld/job_scheduler.c b/src/slurmctld/job_scheduler.c
index 24ecb60cc25ddac7be34e42a109c5c9c2615c91a..765ba066db69cc73046782583710e64f991543ad 100644
--- a/src/slurmctld/job_scheduler.c
+++ b/src/slurmctld/job_scheduler.c
@@ -1763,6 +1763,11 @@ next_task:
 	}
 	xfree(sched_part_ptr);
 	xfree(sched_part_jobs);
+	if (slurmctld_config.server_thread_count >= 150) {
+		info("sched: %d pending RPCs at cycle end, consider "
+		     "configuring max_rpc_cnt",
+		     slurmctld_config.server_thread_count);
+	}
 	unlock_slurmctld(job_write_lock);
 	END_TIMER2("schedule");