JR44480: SIGNIFICANT PERFORMANCE DEGRADE WHILE TOOLKIT UPDATE AFTER BPM 8.0 MIGRATION.

Version 7.5.1 Fix Pack 2 for the IBM Business Process Manager products

APAR status

• Closed as program error.

Error description

• Customer has migrated from BPM Advanced
  v7.5.0.1 to v8.0. In process designer when customer tries to
  update the v7.5.0.1 toolkits to v8.0, it takes about an hour
  for the updates the finish.
  

Local fix

• Need ifix.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  Customer who wants to update the v75        *
  *                  toolkits to v80 toolkits.                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: Customer has migrated from BPM          *
  *                      Advanced v7.5.0.1 to v8.0. In process   *
  *                      designer when customer tries to         *
  *                      update the v7.5.0.1 toolkits to v8.0,   *
  *                      it takes about an hour for the          *
  *                      updates to finish.                      *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Looking at the instrumentation logs, there are numerous calls
  that are taking a long amount of time.
  >> THREAD WebContainer : 8 <<
  09:42:28.982 period 4062ms 'EJB Calls'
  Method=AuthorizationAPIFacadeCore.canExecuteTasksActions {
  09:42:28.982    period 4062ms 'Transaction' {
  >> THREAD WebContainer : 8 <<
  09:42:34.935 period 3938ms 'Transaction' {
  09:42:34.966    period 3891ms 'EJB Calls'
  Method=ScoreboardAPICore.getScoreboardContent {
  >> THREAD WebContainer : 1 <<
  09:42:55.404 period 1312ms 'EJB Calls'
  Method=RepositoryServicesCore.canDeleteProject {
  >> THREAD WebContainer : 6 <<
  09:43:01.247 period 1016ms 'EJB Calls'
  Method=AuthorizationAPIFacadeCore.canExecuteTasksActions {
  09:43:01.247    period 1016ms 'Transaction' {
  >> THREAD WebContainer : 10 <<
  09:43:05.669 period 2953ms 'EJB Calls'
  Method=AuthorizationAPIFacadeCore.canExecuteBpdInstancesActions
  {
  09:43:05.685    period 2937ms 'Transaction' {
  >> THREAD WebContainer : 10 <<
  09:43:10.372 period 1688ms 'EJB Calls'
  Method=PersistenceServicesCore.findByFilter {
  09:43:10.372    period 1688ms 'findByFilter' type=Snapshot {
  >> THREAD WebContainer : 10 <<
  09:43:12.872 period 13172ms 'EJB Calls'
  Method=BPDEngineServicesCore.startBPD {
  Additionally, there are numerous calls that are taking an
  'incomplete'
  amount of time.
  >> THREAD WebContainer : 14 <<
  10:39:08.985 period (incomplete) 'EJB Calls'
  Method=AuthorizationAPIFacadeCore.canViewTask {
  10:39:08.985    point 'With retry support'
  10:39:08.985    period (incomplete) 'Transaction' {
  Additionally, there are numerous exceptions in systemOut.log,
  but the 1
  that seems relevant is -
  com.lombardisoftware.core.TeamWorksDecoratingException: at
  com.lombardisoftware.bpd.runtime.engine.BPDEngine.executeTreeNod
  e(BPDEng
  ine.java:367) at
  com.lombardisoftware.bpd.runtime.engine.BPDEngine.resume(BPDEngi
  ne.java:
  142) at
  com.lombardisoftware.server.ejb.bpd.BPDEngineServicesCore$4.doEx
  ecuteDur
  ingLock(BPDEngineServicesCore.java:602) at
  com.lombardisoftware.server.ejb.bpd.BPDEngineServicesCore$4.doEx
  ecuteDur
  ingLock(BPDEngineServicesCore.java:600) at
  com.lombardisoftware.bpd.runtime.engine.util.LockBPDInstanceComm
  and$1.do
  InTransaction(LockBPDInstanceCommand.java:62)
  Caused by: com.lombardisoftware.server.core.CoreException: at
  com.lombardisoftware.server.core.TaskCore.createTask(TaskCore.ja
  va:1079)
  at
  com.lombardisoftware.server.core.TaskCore.createNewTasks(TaskCor
  e.java:2
  289) at
  com.lombardisoftware.server.ejb.taskservices.TaskServicesCore.cr
  eateTask
  s(TaskServicesCore.java:162) at
  sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
  sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessor
  Impl.jav
  a:60) at
  sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethod
  Accessor
  Impl.java:37)
  

Problem conclusion

• The problem is likely to happen when user groups have many
  users. The code logic did redundant DB access and invoke other
  activities (sometimes unnecessary) internally. The fix
  optimized the logic from these aspects. The performance
  improvement was impressive (from over an hour to a few
  minutes).
  
  For details of install/uninstall instructions, please check
  the README file which can be downloaded together with the ifix
  from Fix Central.
  

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

  BPM ADVANCED

• Fixed component ID

  5725C9400

Applicable component levels

• R800 PSY

     UP