* Dubbo version:  3.2.4

use tri protocol， it has this exception when service run many days，it can not resolve itself，we must restart the service
基本跑几天会出来，然后一直报错无法恢复，目前只能自动重启或者手动重启重连

the problem maybe is not reuse the （unary mode） stream
初步怀疑是unary的stream复用问题

String DISPATCHER_KEY = "dispatcher";
    String CHANNEL_ATTRIBUTE_READONLY_KEY = "channel.readonly";
    String CHANNEL_READONLYEVENT_SENT_KEY = "channel.readonly.sent";
    String CHANNEL_SEND_READONLYEVENT_KEY = "channel.readonly.send";
    String RECONNECT_KEY = "reconnect";
    int DEFAULT_RECONNECT_PERIOD = 2000;
    String CHANNEL_SHUTDOWN_TIMEOUT_KEY = "channel.shutdown.timeout";
    String SEND_RECONNECT_KEY = "send.reconnect";
    String CHECK_KEY = "check";
    String PROMPT_KEY = "prompt";
    String DEFAULT_PROMPT = "dubbo>";
    String TELNET_KEY = "telnet";
    String HEARTBEAT_KEY = "heartbeat";
    String HEARTBEAT_CONFIG_KEY = "dubbo.protocol.default-heartbeat";
    String CLOSE_TIMEOUT_CONFIG_KEY = "dubbo.protocol.default-close-timeout";
    int DEFAULT_HEARTBEAT = 60 * 1000;
    String HEARTBEAT_TIMEOUT_KEY = "heartbeat.timeout";
    String CLOSE_TIMEOUT_KEY = "close.timeout";
    String CONNECTIONS_KEY = "connections";
    int DEFAULT_BACKLOG = 1024;
    String CONNECTION = "Connection";
    String KEEP_ALIVE = "keep-alive";
    String KEEP_ALIVE_HEADER = "Keep-Alive";
    String OK_HTTP = "ok-http";
    String URL_CONNECTION = "url-connection";
    String APACHE_HTTP_CLIENT = "apache-http-client";
    String CONTENT_LENGTH_KEY = "content-length";
    String USE_SECURE_RANDOM_ID = "dubbo.application.use-secure-random-request-id";
}