Increase table size about fabric-tna HOT 4 OPEN

Just providing numbers for record - in current scale, we have ~ 120 groups in a leaf switch. The group limit is 1024, which means we will hit the limit if ONOS is restarted 8~9 times.

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Any chance we can make ONOS remove extraneous groups?

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Just providing numbers for record - in current scale, we have ~ 120 groups in a leaf switch. The group limit is 1024, which means we will hit the limit if ONOS is restarted 8~9 times.

Correction: 120 groups is likely caused by ONOS pod being restarted by k8s without restarting Atomix as well.
In a clean setup, the group count should look like this:

karaf@root > groups -c                                                                                                                                                       03:17:38
deviceId=device:leaf1, groupCount=12
deviceId=device:leaf2, groupCount=6
deviceId=device:spine2, groupCount=4

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Any chance we can make ONOS remove extraneous groups?

We can try a feature that remove groups with 0 reference count. However, the reference count is not reported correctly today so we have to fix that first. Every group has 0 reference count.

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