In the Message retention and expiry
page, we are explaining that set-retention can be invoked with either --size , --time or both, though the only allowed option is to pass both.
The meaning of the size is to give a max retention size after which data will start to get discarded, even though the time period has not expired yet.
This is to protect in cases where the "time" was wrongly estimated, or a big increase in traffic would require an unexpected (and possibly unavailable) amount of storage capacity.
cc/ @lucperkins
In the Message retention and expiry
page, we are explaining that
set-retentioncan be invoked with either--size,--timeor both, though the only allowed option is to pass both.The meaning of the size is to give a max retention size after which data will start to get discarded, even though the time period has not expired yet.
This is to protect in cases where the "time" was wrongly estimated, or a big increase in traffic would require an unexpected (and possibly unavailable) amount of storage capacity.
cc/ @lucperkins