[CP] print core file size when CRASH ERROR

src/observer/main.cpp

@@ -348,6 +348,9 @@ static void print_limit(const char *name, const int resource)
       _OB_LOG(INFO, "[%s] %-24s = %ld", __func__, name, limit.rlim_cur);
     }
   }
+  if (RLIMIT_CORE == resource) {
+    g_rlimit_core = limit.rlim_cur;
+  }
 }
 
 static void print_all_limits()