Jan Čermák
a2015ad126
Since 435c372ce5 added in v256,
num_entries part of the Range header is mandatory and error is returned
when it's not filled in. This makes using the "follow" argument clumsy,
because for an indefinite following of the logs, arbitrary high number
must be specified. This change makes it possible to omit it again and
documents this behavior in the man page.
Moreover, as the cursor part of the header was never mandatory, enclose
it in square brackets in the documentation as well and elaborate how
indexing works.
Following are some concrete examples of the Range header which are now
accepted:
entries= (or entries=:)
- everything starting from the first event
entries=cursor
- everything starting from `cursor`
entries=:-9:10
- last 10 events and close the connection
If the follow flag is set:
entries=:-4:10
- last 5 events, wait for 5 new and close connection
entries=:-9:
- last 10 events and keep streaming
Note that only the very last one is changing current behavior, but
reintroduces pre-v256 compatibility.
Fixes #37172
System and Service Manager
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