PI49224: TCPIP STACK EVENTS (SUCH AS RESTART) CAN CAUSE PROBLEMS WITH CAE SERVER, CAN FILL SERVER LOG

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• If the TCPIP stack on the mainframe stops for any reason, the
  CAE Server will not function correctly after a restart, and the
  CAE Server log can fill up with java stack traces relating to
  RMI:
  .
  Aug 11, 2015 3:14:12 PM
  sun.rmi.transport.tcp.TCPTransport$AcceptLoop
  executeAcceptLoop
  WARNING: RMI TCP Accept-0: accept loop for
  ServerSocket[addr=0.0.0.0/0.0.0.0,port=0,localport=3445] throws
  Throwable occurred: java.net.SocketException: EDC5122I
  Input/output error.
   at java.net.PlainSocketImpl.socketAccept(Native Method)
   at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:449)
   at java.net.ServerSocket.implAccept(ServerSocket.java:473)
   at
  com.rocketsoft.net.RC4ServerSocket.accept(RC4ServerSocket.java:
  43)
  at
  sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(
  TCPTransport.java:381)
  at
  sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.j
  ava:353)
  at java.lang.Thread.run(Thread.java:736)
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED: Users of DB2 Query Monitor z/OS.             *
  ****************************************************************
  * PROBLEM DESCRIPTION: If the TCPIP stack on the mainframe     *
  *                      stops for any reason, the CAE Server    *
  *                      will not function correctly after a     *
  *                      restart, and the CAE Server log can     *
  *                      fill up with java stack traces          *
  *                      relating to RMI:                        *
  *                      Aug 11, 2015 3:14:12 PM                 *
  *                      sun.rmi.transport.tcp.TCPTrans          *
  *                      port$AcceptLoop executeAcceptLoop       *
  *                      WARNING: RMI TCP Accept-0: accept loop  *
  *                      for ServerSocket addr=0.0.0.0/0.0.0.0,  *
  *                      port=0,localport=3445  throws           *
  *                      Throwable occurred: java.net.           *
  *                      SocketException: EDC5122I               *
  *                      Input/output error.                     *
  *                       at java.net.PlainSocketImpl.           *
  *                      socketAccept(Native Method)             *
  *                       at java.net.PlainSocketImpl.           *
  *                      accept(PlainSocketImpl.java:449)        *
  *                       at java.net.ServerSocket.              *
  *                      implAccept(ServerSocket.java:473)       *
  *                       at com.rocketsoft.net.                 *
  *                      RC4ServerSocket.accept(RC4ServerSocket. *
  *                      java: 43) at                            *
  *                      sun.rmi.transport.tcp.                  *
  *                      TCPTransport$AcceptLoop.                *
  *                      executeAcceptLoop(TCPTransport.         *
  *                      java:381) at sun.rmi.transport.tcp.     *
  *                      TCPTransport$AcceptLoop.                *
  *                      run(TCPTransport.java:353)              *
  *                      at java.lang.Thread.run(Thread.java:    *
  *                      736)                                    *
  ****************************************************************
  * RECOMMENDATION: APPLY the PTF.                               *
  ****************************************************************
  Code has been changed to correct this condition.
  

Problem conclusion

• APPLY the PTF.
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

  UI36220

Modules/Macros

•    CQMBLOB  CQMCAEPT CQMJAR   CQMSSV   CQMSWD
  

Fix information

• Fixed component name

  DB2 QUERY MONIT

• Fixed component ID

  5655E6701

Applicable component levels

• R320 PSY UI36220

     UP16/03/18 P F603

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.