JR47388: MEMORY CANNOT BE RELEASED PROPERLY WITH TABLE CONTROL ON COACH

Download Version 8.0.1 Fix Pack 2 for the IBM Business Process Manager products
Version 8.5.0 Fix Pack 1 for the IBM Business Process Manager products
Version 8.5 Refresh Pack 5 for the IBM Business Process Manager products

APAR status

• Closed as program error.

Error description

• while executing the human task on portal, which contains coach
  including the table control;
  page,it is noticed that the memory usage not released properly
  after closing coach page, and very slow table rendering in 8.0.1
  coach view, observed in IE8
  

Local fix

• 1. Create a new toolkit. (Optional, see #2)
  2. Copy the Stock Table control from Coaches toolkit to the new
  toolkit. Alternatively, copy in your process app.
  3. Change the Table unload Event, in Behaviour tab, by adding
  the line between "//add" comments,
  
  <unload>
  Array.forEach(this.bindingHandles, function(handle)
  {handle.unbind(); });
  Array.forEach(this.connectHandles, function(handle) {
  connect.disconnect(handle);});
  Array.forEach(this.subscribeHandles, function(handle) {
  connect.unsubscribe(handle); });
  if (this.grid != undefined && this.grid._originalResize !=
  undefined) {
   delete this.grid._originalResize;
  }
  this.grid.setStore(this.createEmptyStore());
  //add
  this.grid._click = [];
  //add
  delete this.grid.tableView;
  
  4. Create a snapshot of the toolkit. (Optional, see #2)
  5. Put a dependency on the toolkit (Optional, see #2)
  6. In your Coaches, where you experience the issue, bind the
  View to the new Table, rather than the Stock control,
  
  a. Open the Human Service/Coach, or Coach view, and select the
  tab where the Coach is laid out.
  b. Select the Table
  c. In Properties view > General > Behavior,  press Select next
  to View,  and select the new Table from the pick list.
  

Problem summary

• Table control in IE does not release its memory use even after
  its containing task is unloaded and another task is loaded.
  
  USER AFFECTED:
  IE users who want to work with multiple tasks containing Tables
  within a single portal session.
  

Problem conclusion

• Table leaks because dojox.grid.EnhancedGrid, which Table builds
  on, stores references to the mouse click event objects when a
  user clicks inside it.
  
  Fix: insert the line between "//add" comments to Table.unload()
  to release those references:
  
  Array.forEach(this.bindingHandles, function(handle) {
   handle.unbind();
  });
  Array.forEach(this.connectHandles, function(handle) {
   connect.disconnect(handle);
  });
  Array.forEach(this.subscribeHandles, function(handle) {
   connect.unsubscribe(handle);
  });
  if (this.grid != undefined && this.grid._originalResize !=
  undefined) {
   delete this.grid._originalResize;
  }
  this.grid.setStore(this.createEmptyStore());
  //add
  this.grid._click = [];
  //add
  delete this.grid.tableView;
  delete this.grid;
  
  FIX AVAILABILITY:
  Fix for 8.0.1.1 is avaialable as part of cumulative Coaches
  toolkit fix for APAR JR47225. More info at
  http://www.ibm.com/support/docview.wss?uid=swg1JR47225.
  
  When downloading interim fixes, ensure that the complimentary
  readme is obtained and reviewed.
  

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

• R801 PSY

     UP