upgrading logger component makes previous version logs unavailable

[Sivaram Mothiki]

This is an existing behavior in logger, logs are not persistent. If we update the logger the logs from the previous logger version are not available.

Just opening this issue to keep track of this behavior

[Matt Boersma]

Maybe we could figure out and document a way to save and restore the logger data during a Workflow upgrade? Although that doesn't address the general problem: loss of data if a logger pod exits.

[Jonathan Chauncey]

We now back logger by redis so this isnt a problem