Thread 1 (Thread 0x7fbd181bfac0 (LWP 10006)):
#0  0x00007fbcda37761a in mongoc_stream_get_root_stream () from /usr/lib/libmongoc-1.0.so.0
#1  0x00007fbcda37772f in mongoc_stream_poll () from /usr/lib/libmongoc-1.0.so.0
#2  0x00007fbcda32f626 in mongoc_async_run () from /usr/lib/libmongoc-1.0.so.0
#3  0x00007fbcda38029d in mongoc_topology_scanner_work () from /usr/lib/libmongoc-1.0.so.0
#4  0x00007fbcda379c07 in mongoc_topology_scan_once () from /usr/lib/libmongoc-1.0.so.0
#5  0x00007fbcda379c93 in _mongoc_topology_do_blocking_scan () from /usr/lib/libmongoc-1.0.so.0
#6  0x00007fbcda37a21d in mongoc_topology_select_server_id () from /usr/lib/libmongoc-1.0.so.0
#7  0x00007fbcda33aae4 in _mongoc_client_end_sessions () from /usr/lib/libmongoc-1.0.so.0
#8  0x00007fbcda337353 in mongoc_client_destroy () from /usr/lib/libmongoc-1.0.so.0
#9  0x00007fbcdb3d3bfb in MongoClientOps::destroy_client (this=0x2b456f8) at /localdisk/jenkins-j5-ssh1/spot_debug__ub16/rel_6.1.1c/systemtest/modules/core/rwvx/rwlog/rwlogd/sinkapi/plugin/rwlogd_eventsdb_sink/mongo_client_ops.cpp:294
#10 0x00007fbcdb3c67c6 in EventsDBHASink::stop_sending_events (this=0x2b455f0) at /localdisk/jenkins-j5-ssh1/spot_debug__ub16/rel_6.1.1c/systemtest/modules/core/rwvx/rwlog/rwlogd/sinkapi/plugin/rwlogd_eventsdb_sink/rwlogd_eventsdb_ha_sink.cpp:124

void MongoClientOps::destroy_client()
{
  RWMEMLOG (get_memlog_ptr(), RWMEMLOG_MEM2, "Destroy client connection");

  if (bulk_) {
    // Destroys mongo bulk in the destructor
    delete bulk_;
    bulk_ = nullptr;
  }
  //collection should be destroyed with the client
  if (collection_) {
    mongoc_collection_destroy(collection_);
    collection_ = nullptr;
  }
  if (database_) {
    mongoc_database_destroy(database_);
    database_ = nullptr;
  }
  if (client_) {
    mongoc_client_destroy(client_);
    client_ = nullptr;
  }
  return;
}