Can I kill the arweave process if it's taking too long to shutdown?

[JamesPiechota]

No. Avoid killing the arweave process if at all possible. I.e. don't do kill -9 arweave or kill -9 beam or kill -9 erl. To stop the arweave process, use ./bin/stop and then wait for as long as you can for the node to shutdown gracefully. Sometimes if can take a while for the node to shutdown, which we realize is frustrating, but if you kill the node abruptly it can cause rocksdb corruption that can be difficult to recover from. In the worst case you may need to resync and repack a partition.

See Running Your Node for more information