prometheus

Author	SHA1	Message	Date
Chris Marchbanks	b40cc43958	Provide option to compress WAL records (#609 ) In running Prometheus instances, compressing the records was shown to reduce disk usage by half while incurring a negligible CPU cost. Signed-off-by: Chris Marchbanks <csmarchbanks@gmail.com>	2019-06-19 16:46:24 +03:00
Frederic Branczyk	e708ba1d14	wal: Add `_total` suffix as metric is a counter Signed-off-by: Frederic Branczyk <fbranczyk@gmail.com>	2019-06-05 09:24:25 +02:00
Frederic Branczyk	abd15845e2	wal: Replace promauto with injected registry Signed-off-by: Frederic Branczyk <fbranczyk@gmail.com>	2019-06-03 12:29:52 +02:00
Tom Wilkie	77d5a7d47a	LiveReader can get into an infinite loop on corrupt WALs. (#524 ) Make WAL live tailer return EOF when the there is a half-written record at the end of the file. Previously, this would cause an infinite loop as we ignored EOFs when filling the buffer. We now differentiate between EOFs that read >0 bytes, and EOFs that didn't. Add some more unit tests for tailing a corrupt WAL, and unify interfaces Reader and LiveReader for the purposes of testing. Signed-off-by: Tom Wilkie <tom.wilkie@gmail.com>	2019-02-19 14:33:57 +00:00