PI44057: There is an increased performance overhead for users of the SSL feature in Liberty profile

8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

APAR status

• Closed as program error.

Error description

• Customers migrating to WebSphere Application Server Liberty
  profile V8.5.5.5 will encounter an increased CPU load for
  certain SSL (Secure Sockets Layer) handshakes relating to
  SSL peer certificate processing.  This is because the
  WebContainer was updated to use
  javax.net.ssl.SSLSession.getPeerCertificateChain() - it
  should have continued using the newer
  javax.net.ssl.SSLSession.getPeerCertificates(). The
  increased CPU load is only during session initialization.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server Liberty Profile using the Secure     *
  *                  Sockets Layer (SSL) feature                 *
  ****************************************************************
  * PROBLEM DESCRIPTION: There is an increased performance       *
  *                      overhead for users of the SSL feature   *
  *                      in WebSphere Liberty 8.5.5.5 or         *
  *                      8.5.5.6                                 *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Customers migrating to WebSphere Application Server Liberty
  profile 8.5.5.5 or 8.5.5.6 will encounter an increased CPU load
  for certain SSL handshakes when initializing a connection.
  

Problem conclusion

• The Liberty Profile WebContainer was updated to process SSL peer
  certificates more efficiently by using the correct SSL peer
  certificate API method.
  
  The fix for this APAR is currently targeted for inclusion in fix
  pack 8.5.5.7.  Please refer to the Recommended Updates page for
  delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

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:

Fix information

• Fixed component name

  WAS LIBERTY COR

• Fixed component ID

  5725L2900

Applicable component levels

• R855 PSY

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