state="Open / Suspect / None / 'channel down.' when send Batch request

Hello.

I'm trying to register 4,000 items with batch request.

But It failed with below message, event I deleted all consuming logics at out Application, it still happen.

I'm guessing there might be problem with EmaConfig.xml,, so I attached my config here.

            <Consumer>
                <Name value="LocalConsumer"/>
                <!-- channel is optional: defaulted to "RSSL_SOCKET + localhost + 14002" -->
                <Channel value="ChannelReplay1"/>
                <!-- logger is optional: defaulted to "Stdout + Success" -->
                <Logger value="LoggerFile"/>
                <ItemCountHint value="20000"/>
                <!--<ServiceCountHint value="655"/>-->
                <ObeyOpenWindow value="0"/>
                <PostAckTimeout value="10000"/>
                <RequestTimeout value="10000"/>
                <MaxOutstandingPosts value="90000"/>
                <DispatchTimeoutApiThread value="90"/>
                <MaxDispatchCountApiThread value="400"/>
                <MaxDispatchCountUserThread value="5"/>
                <!--ReactorEventFdPort value="75000" -->
                <PipePort value="7001"/>
                <ReconnectAttemptLimit value="10"/>
                <ReconnectMinDelay value="10000" />
                <ReconnectMaxDelay value="15000" />
                <XmlTraceFileName value="EmaMyTrace"/>
                <XmlTraceMaxFileSize value="66666666" />
                <XmlTraceToFile value="0" />
                <XmlTraceToStdout value="0" />
                <XmlTraceToMultipleFiles value="1" />
                <XmlTraceWrite value="1"/>
                <XmlTraceRead value="1"/>
                <XmlTracePing value="1"/>
                <XmlTraceHex value="1"/>
                <MsgKeyInUpdates value="1"/>
                <!-- dictionary is optional: defaulted to "ChannelDictionary" -->
                <Dictionary value="DictionaryFile"/>
            </Consumer>

<Channel>
    <Name value="ChannelReplay1"/>
    <!-- channelType possible values are: -->
    <!-- ChannelType::RSSL_SOCKET    - TCP IP connection type (supported in EAP) -->
    <!-- ChannelType::RSSL_HTTP      - Http tunnel connection type (not yet supported in EAP) -->
    <!-- ChannelType::RSSL_ENCRYPTED - Https tunnel connection type (not yet supported in EAP) -->
    <!-- ChannelType::RSSL_RELIABLE_MCAST - MCAST connection type (not yet supported in EAP) -->
    <ChannelType value="ChannelType::RSSL_SOCKET"/>
    <!-- compressionType is optional: defaulted to None -->
    <!-- possible values: None, ZLib, LZ4 -->
    <CompressionType value="CompressionType::None"/>
    <GuaranteedOutputBuffers value="100000"/>
    <NumInputBuffers value = "7000" />
    <SysRecvBufSize value= "569823" />
    <SysSendBufSize value= "569823" />
    <HighWaterMark value= "3000" />
    <CompressionThreshold value= "2048" />

    <!-- connectionPingTimeout is optional: defaulted to 30000 -->
    <ConnectionPingTimeout value="30000"/>

    <!-- tcpNodelay is optional: defaulted to 1 -->
    <!-- possible values: 1 (tcp_nodelay option set on the channel), 0 (tcp_nodelay not set on the channel) -->
    <TcpNodelay value="1"/>
    <Host value="10.121.56.11"/>
    <Port value="14002"/>
    <DirectWrite value= "1" />
</Channel>