Prometheus v0.9.0 Release Notes
Release Date: 2015-01-23 // about 9 years ago-
- ๐ป [CHANGE] Reworked command line flags, now more consistent and taking into account needs of the new storage backend (see below).
- [CHANGE] Metric names are dropped after certain transformations.
- [CHANGE] Changed partitioning of summary metrics exported by Prometheus.
- [CHANGE] Got rid of Gerrit as a review tool.
- 0๏ธโฃ [CHANGE] 'Tabular' view now the default (rather than 'Graph') to avoid running very expensive queries accidentally.
- โฌ๏ธ [CHANGE] On-disk format for stored samples changed. For upgrading, you have to nuke your old files completely. See "Complete rewrite of the storage
- ๐ [CHANGE] Removed 2nd argument from
delta
. - [FEATURE] Added a
deriv
function. - [FEATURE] Console templates.
- [FEATURE] Added
absent
function. - [FEATURE] Allow omitting the metric name in queries.
- ๐ [BUGFIX] Removed all known race conditions.
- ๐ [BUGFIX] Metric mutations now handled correctly in all cases.
- [ENHANCEMENT] Proper double-start protection.
- [ENHANCEMENT] Complete rewrite of the storage layer. Benefits include:
- Better query performance.
- More samples in less RAM.
- Better memory management.
- Scales up to millions of time series and thousands of samples ingested per second.
- Purging of obsolete samples much cleaner now, up to completely "forgetting" obsolete time series.
- Proper instrumentation to diagnose the storage layer with... well... Prometheus.
- Pure Go implementation, no need for cgo and shared C libraries anymore.
- Better concurrency.
- [ENHANCEMENT] Copy-on-write semantics in the AST layer.
- [ENHANCEMENT] Switched from Go 1.3 to Go 1.4.
- [ENHANCEMENT] Vendored external dependencies with godeps.
- ๐ [ENHANCEMENT] Numerous Web UI improvements, moved to Bootstrap3 and Rickshaw 1.5.1.
- ๐ณ [ENHANCEMENT] Improved Docker integration.
- [ENHANCEMENT] Simplified the Makefile contraption.
- [CLEANUP] Put meta-data files into proper shape (LICENSE, README.md etc.)
- ๐ [CLEANUP] Removed all legitimate 'go vet' and 'golint' warnings.
- ๐ [CLEANUP] Removed dead code.