Here is another take at this:
Started CAS with -Xms2048m -Xmx4096m about 12 days ago.
Interesting things from stats file is that jvm.memory.heap.committed &
jvm.memory.heap.init haven't changed since beginning. 2147483648 is the
same value from the beginning. jvm.memory.heap.usage has varied from 5% to
40%.
jvm.memory.heap.committed, value=2147483648
jvm.memory.heap.init, value=2147483648
jvm.memory.heap.max, value=4294967296
jvm.memory.heap.usage, value=0.33496101573109627
jvm.memory.heap.used, value=1438646608
Weirdest observation (free -m)
12 days ago (when started)
Mem: 6472 2257 749 48 2161
3851
Swap: 4095 0 4095
now:
Mem: 6472 3561 749 48 2161
2547
Swap: 4095 0 4095
Used memory started from 2257 to 3561m.
top -> m
694 javauser 20 0 7381748 3.263g 17792 S 0.8 51.6 288:34.34 java
So, top command tells that jvm takes 3.263g. I was thinking that JVM takes
only 2G {2147483648 of jvm.memory.heap.committed}.
Does this make any sense ? Thoughts?
On Sat, Aug 19, 2017 at 5:20 AM, <[email protected]> wrote:
> OK,
>
> there is a significant memory leak in the version of Thymeleaf layout
> dialect used by versions of CAS prior to 5.0.7. Since 5.0.7 it's been
> updated to the layout dialect version containing the memory leak fix.
>
> This is most likely what you are experiencing.
>
> Cheers,
> D.
>
>
>
>
> On Sat, Aug 19, 2017 at 4:53 AM -0400, "David Malia" <[email protected]>
> wrote:
>
> It probably is a good idea to move Hazelcast to its own jvm at a minimum.
>> It looks like the default behavior is to fill the cache until its at 85% of
>> heap space.
>> I got this by looking at
>> https://apereo.github.io/cas/5.0.x/installation/
>> Configuration-Properties.html#hazelcast-ticket-registry,
>> so I could be wrong.
>>
>>
>> On Fri, Aug 18, 2017 at 10:51 AM, Oschwald Robert <
>> [email protected]> wrote:
>>
>>> You can get the amount of objects in Hazelcast using Hazelcast
>>> Management Center or VM tools like visualvm.
>>> I’m not sure if Hazelcast Management Center is available for Open Source
>>> License usage, or in Hazelcast Enterprise, only.
>>>
>>> I strongly recommend to NOT use the Hazelcast embedded mode, as it is
>>> not optimal for production.
>>> Better to setup a hazelcast Cluster, so run a Hazelcast “Client Plus
>>> Member” Topology.
>>>
>>> See https://hazelcast.com/resources/hazelcast-deployment-
>>> operations-guide/
>>>
>>> Robert
>>>
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