APAR status
Closed as program error.
Error description
If the OS clock on a Traveler HA server is moving such that it becomes more than a few seconds out of time sync with the other servers in a pool (and the enterprise DB servers) AND some data in the internal logon path with TSSDate is sufficiently far in the future, the Heartbeat logic will mark servers as not being alive because the Heartbeat time will not be within the specified time period (normally 1 minute).
Local fix
The OS clock should not be moving very much, so the system itself should be changed to use a time service (such as NTP) to keep the clocks in sync across the servers. If the OS clock is moved and you start getting load balancing errors or all your servers are marked as not alive because of the heartbeat value when they really are alive and have heartbeated within the past minutes, you can workaround the issue by restarting the Traveler and HTTP tasks (or the whole Domino server). Before you restarting, you should fix the OS clock, but that is not known to be required (just recommended).
Problem summary
This is not at all common, but if the System clock wanders on a Traveler server it could result in the server being marked as not available to the other Traveler servers in the HA Pool.
Problem conclusion
The Notes Traveler server has been updated to be more tollerant of a changing system clock, though in general it is best to use a time service to ensure accurate time is kept on the servers.
Temporary fix
This fix is included in Notes Traveler 8.5.3 UP2 IF7, 9.0.0.1 If7 and 9.0.1 IF6 and will be included in any future releases. See this technote for the latest maintenance infomation: http://www.ibm.com/support/docview.wss?uid=swg24019529
Comments
APAR Information
APAR number
LO81574
Reported component name
LOTUS NOTES TRA
Reported component ID
5724E6204
Reported release
853
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2014-08-12
Closed date
2014-09-14
Last modified date
2014-09-14
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
LOTUS NOTES TRA
Fixed component ID
5724E6204
Applicable component levels
R853 PSY
UP
R900 PSY
UP
R901 PSY
UP
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Document Information
Modified date:
14 September 2014