3325913 - Cloud Connector returned Selector.select() returned prematurely

Symptom

Customer's SCC system is frequently getting alert/warming messages, which are flooding the trace files:

2023-04-20 10:01:31,467 -0400#WARN#com.sap.core.connectivity.tunnel.client.sso.SSOClientProcessor#tunnel-client-75-3#0x1b23d8f6#SLOW Opening connection validate token took: 64
2023-04-20 10:02:26,843 -0400#WARN#io.netty.channel.nio.NioEventLoop#tunnel-client-25-10# #Selector.select() returned prematurely 512 times in a row; rebuilding Selector io.netty.channel.nio.SelectedSelectionKeySetSelector@6b1d0268.
2023-04-20 10:04:56,806 -0400#WARN#io.netty.channel.nio.NioEventLoop#tunnel-client-25-10# #Selector.select() returned prematurely 512 times in a row; rebuilding Selector io.netty.channel.nio.SelectedSelectionKeySetSelector@58899efe.
2023-04-20 10:08:56,812 -0400#WARN#io.netty.channel.nio.NioEventLoop#tunnel-client-25-10# #Selector.select() returned prematurely 512 times in a row; rebuilding Selector io.netty.channel.nio.SelectedSelectionKeySetSelector@7039288e.

Environment

SAP Cloud Connector

Product

SAP Cloud Portal service all versions

Keywords

Selector.select() returned prematurely, rebuilding Selector, SelectedSelectionKeySetSelector , KBA , BC-MID-SCC , SAP Cloud Connector On-Demand/On-Premise Connectivity , Known Error

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