Workspaces sometimes are not removed after inactivity

[chrismwendt]

Check out the disk usage climbing over the last 15 days 👆

Most of the space is used by the cpp language server (/tmp/proxy-cache in that container is 80+ gigs):

The timestamps on /tmp/proxy-cache/* are roughly evenly spread across the past 15 days. The logs don't show that many workspaces in active use, so these directories must have been leaked by lsp-adapter somehow.

I have some hunches:

• Maybe lsp-adapter is crashing and not cleaning up the cache directory https://sourcegraph.com/github.com/sourcegraph/lsp-adapter@014109a9fa735cc2ae43426b4a70bc34e998d083/-/blob/proxy.go#L112
• Maybe lsp-adapter is not receiving a disconnect notification, preventing it from cleaning up unused workspaces https://sourcegraph.com/github.com/sourcegraph/lsp-adapter@014109a9fa735cc2ae43426b4a70bc34e998d083/-/blob/proxy.go#L180

Feel free to ask me for SSH access to the machine to investigate further.