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No changes to 0.15.0rc3. Only consolidated the CHANGELOG.md.
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18 KiB
0.15.0 / 2015-07-21
BREAKING CHANGES:
- Relative paths for rule files are now evaluated relative to the config file.
- External reachability flags (
-web.*
) consolidated. - The default storage directory has been changed from
/tmp/metrics
todata
in the local directory. - The
rule_checker
tool has been replaced bypromtool
with different flags and more functionality. - Empty labels are now removed upon ingestion into the
storage. Matching empty labels is now equivalent to matching unset
labels (
mymetric{label=""}
now matches series that don't havelabel
set at all). - The special
__meta_consul_tags
label in Consul service discovery now starts and ends with tag separators to enable easier regex matching. - The default scrape interval has been changed back from 1 minute to 10 seconds.
ALL CHANGES:
- [CHANGE] Change default storage directory to
data
in the current working directory. - [CHANGE] Consolidate external reachability flags (
-web.*
)into one. - [CHANGE] Deprecate
keeping_extra
modifier keyword, rename it tokeep_common
. - [CHANGE] Improve label matching performance and treat unset labels like empty labels in label matchers.
- [CHANGE] Remove
rule_checker
tool and add genericpromtool
CLI tool which allows checking rules and configuration files. - [CHANGE] Resolve rule files relative to config file.
- [CHANGE] Restore default ScrapeInterval of 1 minute instead of 10 seconds.
- [CHANGE] Surround
__meta_consul_tags
value with tag separators. - [CHANGE] Update node disk console for new filesystem labels.
- [FEATURE] Add Consul's
ServiceAddress
,Address
, andServicePort
as meta labels to enable setting a custom scrape address if needed. - [FEATURE] Add
hashmod
relabel action to allow for horizontal sharding of Prometheus servers. - [FEATURE] Add
honor_labels
scrape configuration option to not overwrite any labels exposed by the target. - [FEATURE] Add basic federation support on
/federate
. - [FEATURE] Add optional
RUNBOOK
field to alert statements. - [FEATURE] Add pre-relabel target labels to status page.
- [FEATURE] Add version information endpoint under
/version
. - [FEATURE] Added initial stable API version 1 under
/api/v1
, including ability to delete series and query more metadata. - [FEATURE] Allow configuring query parameters when scraping metrics endpoints.
- [FEATURE] Allow deleting time series via the new v1 API.
- [FEATURE] Allow individual ingested metrics to be relabeled.
- [FEATURE] Allow loading rule files from an entire directory.
- [FEATURE] Allow scalar expressions in range queries, improve error messages.
- [FEATURE] Support Zookeeper Serversets as a service discovery mechanism.
- [ENHANCEMENT] Add circleci yaml for Dockerfile test build.
- [ENHANCEMENT] Always show selected graph range, regardless of available data.
- [ENHANCEMENT] Change expression input field to multi-line textarea.
- [ENHANCEMENT] Enforce strict monotonicity of time stamps within a series.
- [ENHANCEMENT] Export build information as metric.
- [ENHANCEMENT] Improve UI of
/alerts
page. - [ENHANCEMENT] Improve display of target labels on status page.
- [ENHANCEMENT] Improve initialization and routing functionality of web service.
- [ENHANCEMENT] Improve target URL handling and display.
- [ENHANCEMENT] New dockerfile using alpine-glibc base image and make.
- [ENHANCEMENT] Other minor fixes.
- [ENHANCEMENT] Preserve alert state across reloads.
- [ENHANCEMENT] Prettify flag help output even more.
- [ENHANCEMENT] README.md updates.
- [ENHANCEMENT] Raise error on unknown config parameters.
- [ENHANCEMENT] Refine v1 HTTP API output.
- [ENHANCEMENT] Show original configuration file contents on status page instead of serialized YAML.
- [ENHANCEMENT] Start HUP signal handler earlier to not exit upon HUP during startup.
- [ENHANCEMENT] Updated vendored dependencies.
- [BUGFIX] Do not panic in
StringToDuration()
on wrong duration unit. - [BUGFIX] Exit on invalid rule files on startup.
- [BUGFIX] Fix a regression in the
.Path
console template variable. - [BUGFIX] Fix chunk descriptor loading.
- [BUGFIX] Fix consoles "Prometheus" link to point to /
- [BUGFIX] Fix empty configuration file cases
- [BUGFIX] Fix float to int conversions in chunk encoding, which were broken for some architectures.
- [BUGFIX] Fix overflow detection for serverset config.
- [BUGFIX] Fix race conditions in retrieval layer.
- [BUGFIX] Fix shutdown deadlock in Consul SD code.
- [BUGFIX] Fix the race condition targets in the Makefile.
- [BUGFIX] Fix value display error in web console.
- [BUGFIX] Hide authentication credentials in config
String()
output. - [BUGFIX] Increment dirty counter metric in storage only if
setDirty(true)
is called. - [BUGFIX] Periodically refresh services in Consul to recover from missing events.
- [BUGFIX] Prevent overwrite of default global config when loading a configuration.
- [BUGFIX] Properly lex
\r
as whitespace in expression language. - [BUGFIX] Validate label names in JSON target groups.
- [BUGFIX] Validate presence of regex field in relabeling configurations.
- [CLEANUP] Clean up initialization of remote storage queues.
- [CLEANUP] Fix
go vet
andgolint
violations. - [CLEANUP] General cleanup of rules and query language code.
- [CLEANUP] Improve and simplify Dockerfile build steps.
- [CLEANUP] Improve and simplify build infrastructure, use go-bindata for web assets. Allow building without git.
- [CLEANUP] Move all utility packages into common
util
subdirectory. - [CLEANUP] Refactor main, flag handling, and web package.
- [CLEANUP] Remove unused methods from
Rule
interface. - [CLEANUP] Simplify default config handling.
- [CLEANUP] Switch human-readable times on web UI to UTC.
- [CLEANUP] Use
templates.TemplateExpander
for all page templates. - [CLEANUP] Use new v1 HTTP API for querying and graphing.
0.14.0 / 2015-06-01
- [CHANGE] Configuration format changed and switched to YAML. (See the provided migration tool.)
- [ENHANCEMENT] Redesign of state-preserving target discovery.
- [ENHANCEMENT] Allow specifying scrape URL scheme and basic HTTP auth for non-static targets.
- [FEATURE] Allow attaching meaningful labels to targets via relabeling.
- [FEATURE] Configuration/rule reloading at runtime.
- [FEATURE] Target discovery via file watches.
- [FEATURE] Target discovery via Consul.
- [ENHANCEMENT] Simplified binary operation evaluation.
- [ENHANCEMENT] More stable component initialization.
- [ENHANCEMENT] Added internal expression testing language.
- [BUGFIX] Fix graph links with path prefix.
- [ENHANCEMENT] Allow building from source without git.
- [ENHANCEMENT] Improve storage iterator performance.
- [ENHANCEMENT] Change logging output format and flags.
- [BUGFIX] Fix memory alignment bug for 32bit systems.
- [ENHANCEMENT] Improve web redirection behavior.
- [ENHANCEMENT] Allow overriding default hostname for Prometheus URLs.
- [BUGFIX] Fix double slash in URL sent to alertmanager.
- [FEATURE] Add resets() query function to count counter resets.
- [FEATURE] Add changes() query function to count the number of times a gauge changed.
- [FEATURE] Add increase() query function to calculate a counter's increase.
- [ENHANCEMENT] Limit retrievable samples to the storage's retention window.
0.13.4 / 2015-05-23
- [BUGFIX] Fix a race while checkpointing fingerprint mappings.
0.13.3 / 2015-05-11
- [BUGFIX] Handle fingerprint collisions properly.
- [CHANGE] Comments in rules file must start with
#
. (The undocumented//
and/*...*/
comment styles are no longer supported.) - [ENHANCEMENT] Switch to custom expression language parser and evaluation engine, which generates better error messages, fixes some parsing edge-cases, and enables other future enhancements (like the ones below).
- [ENHANCEMENT] Limit maximum number of concurrent queries.
- [ENHANCEMENT] Terminate running queries during shutdown.
0.13.2 / 2015-05-05
- [MAINTENANCE] Updated vendored dependcies to their newest versions.
- [MAINTENANCE] Include rule_checker and console templates in release tarball.
- [BUGFIX] Sort NaN as the lowest value.
- [ENHANCEMENT] Add square root, stddev and stdvar functions.
- [BUGFIX] Use scrape_timeout for scrape timeout, not scrape_interval.
- [ENHANCEMENT] Improve chunk and chunkDesc loading, increase performance when reading from disk.
- [BUGFIX] Show correct error on wrong DNS response.
0.13.1 / 2015-04-09
- [BUGFIX] Treat memory series with zero chunks correctly in series maintenance.
- [ENHANCEMENT] Improve readability of usage text even more.
0.13.0 / 2015-04-08
- [ENHANCEMENT] Double-delta encoding for chunks, saving typically 40% of space, both in RAM and on disk.
- [ENHANCEMENT] Redesign of chunk persistence queuing, increasing performance on spinning disks significantly.
- [ENHANCEMENT] Redesign of sample ingestion, increasing ingestion performance.
- [FEATURE] Added ln, log2, log10 and exp functions to the query language.
- [FEATURE] Experimental write support to InfluxDB.
- [FEATURE] Allow custom timestamps in instant query API.
- [FEATURE] Configurable path prefix for URLs to support proxies.
- [ENHANCEMENT] Increase of rule_checker CLI usability.
- [CHANGE] Show special float values as gaps.
- [ENHANCEMENT] Made usage output more readable.
- [ENHANCEMENT] Increased resilience of the storage against data corruption.
- [ENHANCEMENT] Various improvements around chunk encoding.
- [ENHANCEMENT] Nicer formatting of target health table on /status.
- [CHANGE] Rename UNREACHABLE to UNHEALTHY, ALIVE to HEALTHY.
- [BUGFIX] Strip trailing slash in alertmanager URL.
- [BUGFIX] Avoid +InfYs and similar, just display +Inf.
- [BUGFIX] Fixed HTML-escaping at various places.
- [BUGFIX] Fixed special value handling in division and modulo of the query language.
- [BUGFIX] Fix embed-static.sh.
- [CLEANUP] Added intial HTTP API tests.
- [CLEANUP] Misc. other code cleanups.
- [MAINTENANCE] Updated vendored dependcies to their newest versions.
0.12.0 / 2015-03-04
- [CHANGE] Use client_golang v0.3.1. THIS CHANGES FINGERPRINTING AND INVALIDATES ALL PERSISTED FINGERPRINTS. You have to wipe your storage to use this or later versions. There is a version guard in place that will prevent you to run Prometheus with the stored data of an older Prometheus.
- [BUGFIX] The change above fixes a weakness in the fingerprinting algorithm.
- [ENHANCEMENT] The change above makes fingerprinting faster and less allocation intensive.
- [FEATURE] OR operator and vector matching options. See docs for details.
- [ENHANCEMENT] Scientific notation and special float values (Inf, NaN) now supported by the expression language.
- [CHANGE] Dockerfile makes Prometheus use the Docker volume to store data (rather than /tmp/metrics).
- [CHANGE] Makefile uses Go 1.4.2.
0.11.1 / 2015-02-27
- [BUGFIX] Make series maintenance complete again. (Ever since 0.9.0rc4,
or commit
0851945
, series would not be archived, chunk descriptors would not be evicted, and stale head chunks would never be closed. This happened due to accidental deletion of a line calling a (well tested :) function. - [BUGFIX] Do not double count head chunks read from checkpoint on startup. Also fix a related but less severe bug in counting chunk descriptors.
- [BUGFIX] Check last time in head chunk for head chunk timeout, not first.
- [CHANGE] Update vendoring due to vendoring changes in client_golang.
- [CLEANUP] Code cleanups.
- [ENHANCEMENT] Limit the number of 'dirty' series counted during checkpointing.
0.11.0 / 2015-02-23
- [FEATURE] Introduce new metric type Histogram with server-side aggregation.
- [FEATURE] Add offset operator.
- [FEATURE] Add floor, ceil and round functions.
- [CHANGE] Change instance identifiers to be host:port.
- [CHANGE] Dependency management and vendoring changed/improved.
- [CHANGE] Flag name changes to create consistency between various Prometheus binaries.
- [CHANGE] Show unlimited number of metrics in autocomplete.
- [CHANGE] Add query timeout.
- [CHANGE] Remove labels on persist error counter.
- [ENHANCEMENT] Various performance improvements for sample ingestion.
- [ENHANCEMENT] Various Makefile improvements.
- [ENHANCEMENT] Various console template improvements, including proof-of-concept for federation via console templates.
- [ENHANCEMENT] Fix graph JS glitches and simplify graphing code.
- [ENHANCEMENT] Dramatically decrease resources for file embedding.
- [ENHANCEMENT] Crash recovery saves lost series data in 'orphaned' directory.
- [BUGFIX] Fix aggregation grouping key calculation.
- [BUGFIX] Fix Go download path for various architectures.
- [BUGFIX] Fixed the link of the Travis build status image.
- [BUGFIX] Fix Rickshaw/D3 version mismatch.
- [CLEANUP] Various code cleanups.
0.10.0 / 2015-01-26
- [CHANGE] More efficient JSON result format in query API. This requires up-to-date versions of PromDash and prometheus_cli, too.
- [ENHANCEMENT] Excluded non-minified Bootstrap assets and the Bootstrap maps from embedding into the binary. Those files are only used for debugging, and then you can use -web.use-local-assets. By including fewer files, the RAM usage during compilation is much more manageable.
- [ENHANCEMENT] Help link points to http://prometheus.github.io now.
- [FEATURE] Consoles for haproxy and cloudwatch.
- [BUGFIX] Several fixes to graphs in consoles.
- [CLEANUP] Removed a file size check that did not check anything.
0.9.0 / 2015-01-23
- [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.
- [CHANGE] 'Tabular' view now the default (rather than 'Graph') to avoid running very expensive queries accidentally.
- [CHANGE] On-disk format for stored samples changed. For upgrading, you have to nuke your old files completely. See "Complete rewrite of the storage
- [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.
- [BUGFIX] Removed all known race conditions.
- [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.
- [ENHANCEMENT] Numerous Web UI improvements, moved to Bootstrap3 and Rickshaw 1.5.1.
- [ENHANCEMENT] Improved Docker integration.
- [ENHANCEMENT] Simplified the Makefile contraption.
- [CLEANUP] Put meta-data files into proper shape (LICENSE, README.md etc.)
- [CLEANUP] Removed all legitimate 'go vet' and 'golint' warnings.
- [CLEANUP] Removed dead code.
0.8.0 / 2014-09-04
- [ENHANCEMENT] Stagger scrapes to spread out load.
- [BUGFIX] Correctly quote HTTP Accept header.
0.7.0 / 2014-08-06
- [FEATURE] Added new functions: abs(), topk(), bottomk(), drop_common_labels().
- [FEATURE] Let console templates get graph links from expressions.
- [FEATURE] Allow console templates to dynamically include other templates.
- [FEATURE] Template consoles now have access to their URL.
- [BUGFIX] Fixed time() function to return evaluation time, not wallclock time.
- [BUGFIX] Fixed HTTP connection leak when targets returned a non-200 status.
- [BUGFIX] Fixed link to console templates in UI.
- [PERFORMANCE] Removed extra memory copies while scraping targets.
- [ENHANCEMENT] Switched from Go 1.2.1 to Go 1.3.
- [ENHANCEMENT] Made metrics exported by Prometheus itself more consistent.
- [ENHANCEMENT] Removed incremental backoffs for unhealthy targets.
- [ENHANCEMENT] Dockerfile also builds Prometheus support tools now.
0.6.0 / 2014-06-30
- [FEATURE] Added console and alert templates support, along with various template functions.
- [PERFORMANCE] Much faster and more memory-efficient flushing to disk.
- [ENHANCEMENT] Query results are now only logged when debugging.
- [ENHANCEMENT] Upgraded to new Prometheus client library for exposing metrics.
- [BUGFIX] Samples are now kept in memory until fully flushed to disk.
- [BUGFIX] Non-200 target scrapes are now treated as an error.
- [BUGFIX] Added installation step for missing dependency to Dockerfile.
- [BUGFIX] Removed broken and unused "User Dashboard" link.
0.5.0 / 2014-05-28
- [BUGFIX] Fixed next retrieval time display on status page.
- [BUGFIX] Updated some variable references in tools subdir.
- [FEATURE] Added support for scraping metrics via the new text format.
- [PERFORMANCE] Improved label matcher performance.
- [PERFORMANCE] Removed JSON indentation in query API, leading to smaller response sizes.
- [ENHANCEMENT] Added internal check to verify temporal order of streams.
- [ENHANCEMENT] Some internal refactorings.
0.4.0 / 2014-04-17
- [FEATURE] Vectors and scalars may now be reversed in binary operations (
<scalar> <binop> <vector>
). - [FEATURE] It's possible to shutdown Prometheus via a
/-/quit
web endpoint now. - [BUGFIX] Fix for a deadlock race condition in the memory storage.
- [BUGFIX] Mac OS X build fixed.
- [BUGFIX] Built from Go 1.2.1, which has internal fixes to race conditions in garbage collection handling.
- [ENHANCEMENT] Internal storage interface refactoring that allows building e.g. the
rule_checker
tool without LevelDB dynamic library dependencies. - [ENHANCEMENT] Cleanups around shutdown handling.
- [PERFORMANCE] Preparations for better memory reuse during marshalling / unmarshalling.