SAP Knowledge Base Article - Preview

2862414 - Failed to open a socket/Too many open files : SCC error

Symptom

Application deployed on the SAP Cloud Platform (SCP) fails to load and the below error is populated in the SAP Cloud Connector (SCC) traces:

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#Unable to open connection to backend system: Unable to create Channel from class class io.netty.channel.socket.nio.NioSocketChannel
io.netty.channel.ChannelException: Unable to create Channel from class class io.netty.channel.socket.nio.NioSocketChannel
Caused by: java.lang.reflect.InvocationTargetException
Caused by: io.netty.channel.ChannelException: Failed to open a socket.
Caused by: java.net.SocketException: Too many open files

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Environment

  • SAP Cloud Connector
  • Release Independent

Product

Identity Authentication all versions ; SAP Business Technology Platform 1.0 ; SAP Connectivity service 2.0 ; SAP HANA 1.0, platform edition

Keywords

Production ABAP R/3 ERP SRM CRM ERP PPM SEM APO XI PI PORTAL Test development QA KBA On Premise HANA Database SAP Cloud Platform Cloud Connector xsodata On-Premise Access Control HANA DB Cloud to On-Premise HTTPS connection ABAP com.sap.scc.rt SccEndpointValidator , KBA , BC-MID-SCC , SAP Cloud Connector On-Demand/On-Premise Connectivity , BC-OP-LNX , Linux , BC-NEO-CON , Neo to On-premise Connectivity service , Problem

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