exporter: avoid stoi for empty pid_str

Fixes: https://tracker.ceph.com/issues/57619
Signed-off-by: Avan Thakkar <athakkar@redhat.com>
(cherry picked from commit cff3cf1d31342be759cdd848cd074a247b56b238)

diff --git a/src/exporter/DaemonMetricCollector.cc b/src/exporter/DaemonMetricCollector.cc
index 7f88113b9905690e6abc426041b64fef70654190..6eb11b1225cff661d60e454c0c1dfb23050591ed 100644 (file)
--- a/src/exporter/DaemonMetricCollector.cc
+++ b/src/exporter/DaemonMetricCollector.cc
@@ -114,7 +114,9 @@ void DaemonMetricCollector::dump_asok_metrics() {
     if (!pid_path.size()) {
       continue;
     }
-    daemon_pids.push_back({daemon_name, std::stoi(pid_str)});
+    if (!pid_str.empty()) {
+      daemon_pids.push_back({daemon_name, std::stoi(pid_str)});
+    }
     json_object dump = boost::json::parse(perf_dump_response).as_object();
     json_object schema = boost::json::parse(perf_schema_response).as_object();
     for (auto &perf : schema) {