I have a Java question about Domino.
I have a notes.ini setting which works differently on one lpar than on
another. I can understand the possibilities: Memory differences, etc.
From the case:
The default for os400 is 1G for all defaults so it is not clear on why we
got a 256 meg setting, the only way that could happen is if
HTTPJVMMaxHeapSize does not exist or cannot be found and the other JVM
setting for the Agent manager is set JavaMaxHeapSize=256, then
HTTPJVMMaxHeapSize will be set to the JavaMaxHeapSize.
This setting is not touched if it already exists, if the setting does not
exist it will be initialized to something (either the default of 1 gig or
if JavaMaxHeapSize.is present then the value specified by JavaMaxHeapSize.
With regard to the 4G setting failing, the reason for that is the JVM will
try and allocate the heap (4g) at startup, if it cannot allocate that much
memory then one will get a too large setting, the possibility is that the
OS400 JVM may be limited to 2 gig heap, one could try and specify 2148M
(instead of 2048) and see if that works, if that works then the issue will
be the JVM could not allocate a 4G heap.

Both lpars are IBM i 7.3 at same PTF levels.
Both are Power 9's. One is on a 41A and the other is on a 42A. The 42A
works at 4G, the 41A only works at 2G. Both lpars are setup for Domino.


Sys Pool Reserved Max ------DB------- ----Non-DB-----
Pool Size M Size M Act Faults Pages Faults Pages
1 2217.94 1148.35 +++++ .0 .0 .0 .0
2 28467.86 12.14 393 .0 .0 .0 4.2
3 1645.16 .00 82 .0 .0 2.4 2.6
4 81.02 .00 5 .0 .0 .0 .0

System Pool Reserved Max -------DB------- -----Non-DB-----
Pool Size (M) Size (M) Active Faults Pages Faults Pages
1 8102.97 1184.71 +++++ .0 .0 .0 .0
2 19086.12 16.43 373 .0 .0 .0 .0
3 4898.78 .00 163 .0 .0 4.0 5.2
4 324.11 .00 5 .0 .0 .0 .0

Is there some other Java setting I am missing?

Rob Berendt

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