Our IS server crashed suddenly and i could see a core file generated in IS home directory. I can see the following logs in the server log.

pub.sap.transport.ALE:OutboundProcess [SAP.116.9551] Adapter service error: (104) RFC_ERROR_SYSTEM_FAILURE - CPIC-CALL: ‘CMRCV’ LOCATION CPIC (TCP/IP) on local host ERROR connection to partner broken TIME Mon Jan 24 08:56:13 2011 RELEASE 640 COMPONENT NI (network interface) VERSION 37 RC -6 MODULE niuxi_mt.c LINE 928 DETAIL NiPRead (10.2.124.216/3336, hdl 19) SYSTEM CALL recv ERRNO 131 ERRNO TEXT Connection reset by peer COUNTER 4

Any idea what might be the cause?

Hi Murali,

   It looks like Native libraries associated with adapter running on the integration server(custom native services developed by users or SAP Adapter JCO libraries). Since Native code libraries are non-java components will not have garbage collection mechanism hence they will not release memory. Since IS crash refers to sudden exit of the JVM Process in which the integration server was running. even JVM defect is also a problem with this issue. 

Another possibility for this issue is a defect in native libraries code(sap JCO Libraries) can cause JVM crash.

Please let me know in case of any concerns. 

Thanks,
Venkata.