Hi Engcoder,

Please consider that if the Items subscribed in COMMAND mode involve a very large snapshot, such as an Item with a huge number of associated keys and/or with very large fields, a significant memory consumption should be expected.

Nevertheless you should be able to determine whether this consumption is appropriate to the size of the snapshot or abnormal.
For example, did you observe some regular pattern in memory consuption, ie. linear growth of consumed memory with the number of COMMAND subscriptions?

Furthermore, please could you confirm if you are using Java in-process Adapters, in this case you should investigate also your Adapters code since the heap memory is shared.

As a last resort you may consider to perform a heap dump during a crisis.

HTH,
Giuseppe