Cardano-Node 1.35.2 on testnet connection reset error

cnode[527487]: [vmi88546:cardano.node.ErrorPolicy:Warning:72] [2022-07-28 16:37:33.58 UTC] IP ErrorPolicySuspendPeer (Just (ApplicationExceptionTrace (MuxError (MuxIOException writev: resource vanished (Connection reset by peer)) “(sendAll errored)”))) 20s 20s

I am getting this error not all the time but it seems to get worse over time when trying to rebuild the ledger db v1.35.2 anybody have any suggestions? x86_64 ubuntu 30gb ram 8cores