APAR status
Closed as program error.
Error description
When Checkpointing is turned ON it increases the Node synchronization times.
Local fix
n/a
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server version 8.5.5 or later * **************************************************************** * PROBLEM DESCRIPTION: When Checkpointing is turned ON in a * * Network Deployment environment, * * it increases the node synchronization * * time. * **************************************************************** * RECOMMENDATION: * **************************************************************** In the current scenario, when the checkpointing is ON in a Network Deployment(ND) environment, in addition to checkpoints being generated on the Deployment Manager they are also generated on the Nodes during node synchronization. And, when dealing with larger applications and greater checkpoint depths there is a significant delay in the node synchronization.
Problem conclusion
This fix provides an option through a custom property to avoid checkpoint generation on the Nodes when Checkpointing is turned ON the Deployment Manager. So, when the Checkpointing is ON and the custom property com.ibm.ws.checkpoint.bypass is set to TRUE on the Deplyoment Manager and all the Nodeagents then checkpoints will be generated on the Deployment Manager only and not on the Nodes during node sync. The fix for this APAR is targeted for inclusion in fix pack 8.5.5.18 and 9.0.5.4. For more information, see 'Recommended Updates for WebSphere Application Server': http://www.ibm.com/support/docview.wss? rs=180&uid=swg27004980
Temporary fix
Comments
APAR Information
APAR number
PH19392
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
850
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-11-19
Closed date
2020-02-12
Last modified date
2020-02-12
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
WEBS APP SERV N
Fixed component ID
5724H8800
Applicable component levels
R850 PSY
UP
R900 PSY
UP
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.5","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
02 November 2021