Hi,
I’ve been reading through this page ( https://apacheignite.readme.io/docs/write-ahead-log) on WAL files in Ignite. I’d like to understand what the purpose of the WAL archive is. I understand from the documentation that the WAL archive contains data that has been checkpointed, and so safely committed to the cache partition files. It seems to be optional in that it is possible to not have one by setting the WAL active and archive paths to be the same location. The documentation recommends doing this if ingest volumes mean time spent copying WAL files to the archive can cause node freezes. Is the WAL archive used in recovery operations when an Ignite node restarts? Is there a downside to not having WAL segments archived? Thanks, Raymond.
