https://s3.amazonaws.com/clickhouse-test-reports/0/10dc83b7a9c18228c4a4fc0dcfe6b18d2427462e/stress_test__debug__actions_.html

I found weird exception while investigating why ephemeral nodes were not removed for a long time:
https://pastila.nl/?00ec9776/d8858e442f8453f9b9e31a2f1da3cc8b
{
    setThreadName("KeeperReqT");
    
    RaftAppendResult prev_result = nullptr;
    
    
    KeeperStorage::RequestsForSessions prev_batch;
    while (!shutdown_called)
    {
        KeeperStorage::RequestForSession request;
        auto coordination_settings = configuration_and_settings->coordination_settings;
        uint64_t max_wait = coordination_settings->operation_timeout_ms.totalMilliseconds();
        uint64_t max_batch_size = coordination_settings->max_requests_batch_size;
        
        
        
        
        
        
        try
        {
            if (requests_queue->tryPop(request, max_wait))
            {
                if (shutdown_called)
                    break;
                KeeperStorage::RequestsForSessions current_batch;
                bool has_read_request = false;