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500 Internal Server Error and Session Timeout Error

Hi,

When we entry a big Repair order in CRM web-ui, make a small change and save, we are getting 500 internal server error. No other information in the error. When I look into SM21 below errors I see. Most of the errors are for RFCUSER and some for end users.

VM 6 starts imprecise forced SGC (32ms) VM 6 ends SGC after 1157ms (reclaim 750ms) VM 6 starts imprecise forced SGC (32ms) VM 0 ends SGC after 860ms (reclaim 735ms) Java session error occurred: OutOfMemoryError storing Java session: not enough space to cre Delete session T109_U30441_M0 after error Execution was canceled (Softcancel) [Warning/Session] Delete session T421_U30355_M0 after error Execution was canceled (Softcancel) [Warning/Session] VM 2 starts imprecise forced SGC (31ms) VM 2 ends SGC after 891ms (reclaim 735ms) VM 2 starts imprecise forced SGC (16ms) VM 2 ends SGC after 782ms (reclaim 688ms) Java session error occurred: OutOfMemoryError storing Java session: not enough space to cre Delete session T132_U30731_M0 after error Execution was canceled (Softcancel) [Warning/Session] Delete session T190_U30710_M0 after error Execution was canceled (Softcancel) [Warning/Session]

The 2 errors we are getting constantly is session timeout-restart your session and the 500 internal server error. Someone help me resolve the issue. Below are some of our parameters.

vmcj/max_vm_heap_MB =128

vmcj/enable =on

vmcj/option/ps =2048M

vmcj/option/maxJavaHeap =600M

vmcj/memory_isolation =0

vmcj/option/extMTX =share

vmcj/option/internLock =1

vmcj/option/scnLock =3

vmcj/property/SESSION.MAX.SIZE =128M

vmcj/TRACE_1 =0x0, 0x0L, 0x0

vmcj/option/tmpHashtable =1

vmcj/option/gc/sharedGCPrecision =1000n

eg2/max_extend_size_MB = 4

rdisp/plugin_auto_logout = 28800

ICM = PROCTIMEOUT=32000

rdisp/max_vm_priv_time = SERVLET=300, RFC=300

rdisp/max_vm_priv_no = SERVLET=0, RFC=0

Thanks,

Kavitha Rajan

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1 Answer

  • Jul 24, 2017 at 01:59 PM

    Hello Kavitha

    As per your problem description this might be an http session handling issue which occurs in IC multisession scenarios. Can you follow the KBA note which addresses the error.

    1597836 - HTTP session handling in IC multi session scenarios

    It is recommended to set paramter is/HTTP/show_detailed_errors to TRUE. This will send an error message like "The maximum number of sessions has been reached" to the browser instead of a generic HTTP 500 internal server error. For further details you might also check SAP Note 1427190.


    Best Regards,
    David
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