We could see that the Data Aggregator service RAM and SWAP space is 100%, when checked with the OS team they have informed that application related java services are consuming lot of space.
Release : 20.2.x
Component : IM Data Aggregator
Inodes on the var partition got exhausted
df -i
Have the Operating System team check the free inodes
df -i
clean up the space in the partition
now try to start the services