prometheus/CHANGELOG.md

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## 1.6.3 / 2017-05-18
2017-05-18 02:06:29 -07:00
* [BUGFIX] Fix disappearing Alertmanger targets in Alertmanager discovery.
* [BUGFIX] Fix panic with remote_write on ARMv7.
* [BUGFIX] Fix stacked graphs to adapt min/max values.
## 1.6.2 / 2017-05-11
2017-05-11 04:58:18 -07:00
* [BUGFIX] Fix potential memory leak in Kubernetes service discovery
## 1.6.1 / 2017-04-19
2017-04-19 06:23:56 -07:00
* [BUGFIX] Don't panic if storage has no FPs even after initial wait
## 1.6.0 / 2017-04-14
2017-04-13 16:53:20 -07:00
* [CHANGE] Replaced the remote write implementations for various backends by a
generic write interface with example adapter implementation for various
backends. Note that both the previous and the current remote write
implementations are **experimental**.
* [FEATURE] New flag `-storage.local.target-heap-size` to tell Prometheus about
the desired heap size. This deprecates the flags
`-storage.local.memory-chunks` and `-storage.local.max-chunks-to-persist`,
which are kept for backward compatibility.
* [FEATURE] Add `check-metrics` to `promtool` to lint metric names.
* [FEATURE] Add Joyent Triton discovery.
* [FEATURE] `X-Prometheus-Scrape-Timeout-Seconds` header in HTTP scrape
requests.
* [FEATURE] Remote read interface, including example for InfluxDB. **Experimental.**
* [FEATURE] Enable Consul SD to connect via TLS.
* [FEATURE] Marathon SD supports multiple ports.
* [FEATURE] Marathon SD supports bearer token for authentication.
* [FEATURE] Custom timeout for queries.
* [FEATURE] Expose `buildQueryUrl` in `graph.js`.
* [FEATURE] Add `rickshawGraph` property to the graph object in console
templates.
* [FEATURE] New metrics exported by Prometheus itself:
* Summary `prometheus_engine_query_duration_seconds`
* Counter `prometheus_evaluator_iterations_missed_total`
* Counter `prometheus_evaluator_iterations_total`
* Gauge `prometheus_local_storage_open_head_chunks`
* Gauge `prometheus_local_storage_target_heap_size`
* [ENHANCEMENT] Reduce shut-down time by interrupting an ongoing checkpoint
before starting the final checkpoint.
* [ENHANCEMENT] Auto-tweak times between checkpoints to limit time spent in
checkpointing to 50%.
* [ENHANCEMENT] Improved crash recovery deals better with certain index
corruptions.
* [ENHANCEMENT] Graphing deals better with constant time series.
* [ENHANCEMENT] Retry remote writes on recoverable errors.
* [ENHANCEMENT] Evict unused chunk descriptors during crash recovery to limit
memory usage.
* [ENHANCEMENT] Smoother disk usage during series maintenance.
* [ENHANCEMENT] Targets on targets page sorted by instance within a job.
* [ENHANCEMENT] Sort labels in federation.
* [ENHANCEMENT] Set `GOGC=40` by default, which results in much better memory
utilization at the price of slightly higher CPU usage. If `GOGC` is set by
the user, it is still honored as usual.
* [ENHANCEMENT] Close head chunks after being idle for the duration of the
configured staleness delta. This helps to persist and evict head chunk of
stale series more quickly.
* [ENHANCEMENT] Stricter checking of relabel config.
* [ENHANCEMENT] Cache busters for static web content.
* [ENHANCEMENT] Send Prometheus-specific user-agent header during scrapes.
* [ENHANCEMENT] Improved performance of series retention cut-off.
* [ENHANCEMENT] Mitigate impact of non-atomic sample ingestion on
`histogram_quantile` by enforcing buckets to be monotonic.
* [ENHANCEMENT] Released binaries built with Go 1.8.1.
* [BUGFIX] Send `instance=""` with federation if `instance` not set.
* [BUGFIX] Update to new `client_golang` to get rid of unwanted quantile
metrics in summaries.
* [BUGFIX] Introduce several additional guards against data corruption.
* [BUGFIX] Mark storage dirty and increment
`prometheus_local_storage_persist_errors_total` on all relevant errors.
* [BUGFIX] Propagate storage errors as 500 in the HTTP API.
* [BUGFIX] Fix int64 overflow in timestamps in the HTTP API.
* [BUGFIX] Fix deadlock in Zookeeper SD.
* [BUGFIX] Fix fuzzy search problems in the web-UI auto-completion.
## 1.5.3 / 2017-05-11
2017-05-11 05:35:17 -07:00
* [BUGFIX] Fix potential memory leak in Kubernetes service discovery
## 1.5.2 / 2017-02-10
2017-02-10 04:16:17 -08:00
* [BUGFIX] Fix series corruption in a special case of series maintenance where
the minimum series-file-shrink-ratio kicks in.
* [BUGFIX] Fix two panic conditions both related to processing a series
scheduled to be quarantined.
* [ENHANCEMENT] Binaries built with Go1.7.5.
## 1.5.1 / 2017-02-07
* [BUGFIX] Don't lose fully persisted memory series during checkpointing.
* [BUGFIX] Fix intermittently failing relabeling.
* [BUGFIX] Make `-storage.local.series-file-shrink-ratio` work.
* [BUGFIX] Remove race condition from TestLoop.
## 1.5.0 / 2017-01-23
2017-01-23 02:09:42 -08:00
* [CHANGE] Use lexicographic order to sort alerts by name.
* [FEATURE] Add Joyent Triton discovery.
* [FEATURE] Add scrape targets and alertmanager targets API.
* [FEATURE] Add various persistence related metrics.
* [FEATURE] Add various query engine related metrics.
* [FEATURE] Add ability to limit scrape samples, and related metrics.
* [FEATURE] Add labeldrop and labelkeep relabelling actions.
* [FEATURE] Display current working directory on status-page.
* [ENHANCEMENT] Strictly use ServiceAccount for in cluster configuration on Kubernetes.
* [ENHANCEMENT] Various performance and memory-management improvements.
* [BUGFIX] Fix basic auth for alertmanagers configured via flag.
* [BUGFIX] Don't panic on decoding corrupt data.
* [BUGFIX] Ignore dotfiles in data directory.
* [BUGFIX] Abort on intermediate federation errors.
## 1.4.1 / 2016-11-28
2016-11-28 00:29:23 -08:00
* [BUGFIX] Fix Consul service discovery
## 1.4.0 / 2016-11-25
2016-11-25 04:28:29 -08:00
* [FEATURE] Allow configuring Alertmanagers via service discovery
* [FEATURE] Display used Alertmanagers on runtime page in the UI
* [FEATURE] Support profiles in AWS EC2 service discovery configuration
* [ENHANCEMENT] Remove duplicated logging of Kubernetes client errors
* [ENHANCEMENT] Add metrics about Kubernetes service discovery
* [BUGFIX] Update alert annotations on re-evaluation
* [BUGFIX] Fix export of group modifier in PromQL queries
* [BUGFIX] Remove potential deadlocks in several service discovery implementations
* [BUGFIX] Use proper float64 modulo in PromQL `%` binary operations
* [BUGFIX] Fix crash bug in Kubernetes service discovery
## 1.3.1 / 2016-11-04
2016-11-04 13:08:26 -07:00
This bug-fix release pulls in the fixes from the 1.2.3 release.
2016-11-04 13:08:26 -07:00
* [BUGFIX] Correctly handle empty Regex entry in relabel config.
* [BUGFIX] MOD (`%`) operator doesn't panic with small floating point numbers.
* [BUGFIX] Updated miekg/dns vendoring to pick up upstream bug fixes.
* [ENHANCEMENT] Improved DNS error reporting.
## 1.2.3 / 2016-11-04
Note that this release is chronologically after 1.3.0.
* [BUGFIX] Correctly handle end time before start time in range queries.
* [BUGFIX] Error on negative `-storage.staleness-delta`
* [BUGFIX] Correctly handle empty Regex entry in relabel config.
* [BUGFIX] MOD (`%`) operator doesn't panic with small floating point numbers.
* [BUGFIX] Updated miekg/dns vendoring to pick up upstream bug fixes.
* [ENHANCEMENT] Improved DNS error reporting.
## 1.3.0 / 2016-11-01
2016-10-18 06:12:32 -07:00
This is a breaking change to the Kubernetes service discovery.
* [CHANGE] Rework Kubernetes SD.
* [FEATURE] Add support for interpolating `target_label`.
* [FEATURE] Add GCE metadata as Prometheus meta labels.
* [ENHANCEMENT] Add EC2 SD metrics.
* [ENHANCEMENT] Add Azure SD metrics.
* [ENHANCEMENT] Add fuzzy search to `/graph` textarea.
* [ENHANCEMENT] Always show instance labels on target page.
2016-11-01 07:45:09 -07:00
* [BUGFIX] Validate query end time is not before start time.
* [BUGFIX] Error on negative `-storage.staleness-delta`
2016-10-30 16:06:23 -07:00
## 1.2.2 / 2016-10-30
2016-10-28 06:15:29 -07:00
2016-10-18 06:12:32 -07:00
* [BUGFIX] Correctly handle on() in alerts.
2016-10-28 06:15:29 -07:00
* [BUGFIX] UI: Deal properly with aborted requests.
* [BUGFIX] UI: Decode URL query parameters properly.
* [BUGFIX] Storage: Deal better with data corruption (non-monotonic timestamps).
* [BUGFIX] Remote storage: Re-add accidentally removed timeout flag.
* [BUGFIX] Updated a number of vendored packages to pick up upstream bug fixes.
2016-10-18 06:12:32 -07:00
## 1.2.1 / 2016-10-10
2016-10-10 07:54:19 -07:00
* [BUGFIX] Count chunk evictions properly so that the server doesn't
assume it runs out of memory and subsequencly throttles ingestion.
* [BUGFIX] Use Go1.7.1 for prebuilt binaries to fix issues on MacOS Sierra.
## 1.2.0 / 2016-10-07
2016-10-06 12:28:51 -07:00
* [FEATURE] Cleaner encoding of query parameters in `/graph` URLs.
2016-10-06 12:28:51 -07:00
* [FEATURE] PromQL: Add `minute()` function.
* [FEATURE] Add GCE service discovery.
* [FEATURE] Allow any valid UTF-8 string as job name.
2016-10-06 12:28:51 -07:00
* [FEATURE] Allow disabling local storage.
* [FEATURE] EC2 service discovery: Expose `ec2_instance_state`.
* [ENHANCEMENT] Various performance improvements in local storage.
2016-10-06 12:28:51 -07:00
* [BUGFIX] Zookeeper service discovery: Remove deleted nodes.
* [BUGFIX] Zookeeper service discovery: Resync state after Zookeeper failure.
* [BUGFIX] Remove JSON from HTTP Accept header.
* [BUGFIX] Fix flag validation of Alertmanager URL.
* [BUGFIX] Fix race condition on shutdown.
2016-10-06 12:28:51 -07:00
* [BUGFIX] Do not fail Consul discovery on Prometheus startup when Consul
is down.
* [BUGFIX] Handle NaN in `changes()` correctly.
* [CHANGE] **Experimental** remote write path: Remove use of gRPC.
* [CHANGE] **Experimental** remote write path: Configuration via config file
rather than command line flags.
* [FEATURE] **Experimental** remote write path: Add HTTP basic auth and TLS.
* [FEATURE] **Experimental** remote write path: Support for relabelling.
2016-10-06 12:28:51 -07:00
## 1.1.3 / 2016-09-16
2016-09-16 04:08:16 -07:00
* [ENHANCEMENT] Use golang-builder base image for tests in CircleCI.
* [ENHANCEMENT] Added unit tests for federation.
* [BUGFIX] Correctly de-dup metric families in federation output.
## 1.1.2 / 2016-09-08
2016-09-08 05:17:49 -07:00
* [BUGFIX] Allow label names that coincide with keywords.
## 1.1.1 / 2016-09-07
2016-09-07 02:16:45 -07:00
* [BUGFIX] Fix IPv6 escaping in service discovery integrations
* [BUGFIX] Fix default scrape port assignment for IPv6
## 1.1.0 / 2016-09-03
2016-09-01 10:11:01 -07:00
* [FEATURE] Add `quantile` and `quantile_over_time`.
* [FEATURE] Add `stddev_over_time` and `stdvar_over_time`.
* [FEATURE] Add various time and date functions.
* [FEATURE] Added `toUpper` and `toLower` formatting to templates.
* [FEATURE] Allow relabeling of alerts.
* [FEATURE] Allow URLs in targets defined via a JSON file.
* [FEATURE] Add idelta function.
* [FEATURE] 'Remove graph' button on the /graph page.
* [FEATURE] Kubernetes SD: Add node name and host IP to pod discovery.
* [FEATURE] New remote storage write path. EXPERIMENTAL!
* [ENHANCEMENT] Improve time-series index lookups.
* [ENHANCEMENT] Forbid invalid relabel configurations.
* [ENHANCEMENT] Improved various tests.
* [ENHANCEMENT] Add crash recovery metric 'started_dirty'.
* [ENHANCEMENT] Fix (and simplify) populating series iterators.
* [ENHANCEMENT] Add job link on target page.
* [ENHANCEMENT] Message on empty Alerts page.
* [ENHANCEMENT] Various internal code refactorings and clean-ups.
* [ENHANCEMENT] Various improvements in the build system.
* [BUGFIX] Catch errors when unmarshalling delta/doubleDelta encoded chunks.
* [BUGFIX] Fix data race in lexer and lexer test.
* [BUGFIX] Trim stray whitespace from bearer token file.
* [BUGFIX] Avoid divide-by-zero panic on query_range?step=0.
* [BUGFIX] Detect invalid rule files at startup.
* [BUGFIX] Fix counter reset treatment in PromQL.
* [BUGFIX] Fix rule HTML escaping issues.
* [BUGFIX] Remove internal labels from alerts sent to AM.
## 1.0.2 / 2016-08-24
2016-08-24 03:04:10 -07:00
* [BUGFIX] Clean up old targets after config reload.
## 1.0.1 / 2016-07-21
2016-07-21 05:08:31 -07:00
* [BUGFIX] Exit with error on non-flag command-line arguments.
* [BUGFIX] Update example console templates to new HTTP API.
* [BUGFIX] Re-add logging flags.
## 1.0.0 / 2016-07-18
* [CHANGE] Remove deprecated query language keywords
* [CHANGE] Change Kubernetes SD to require specifying Kubernetes role
* [CHANGE] Use service address in Consul SD if available
* [CHANGE] Standardize all Prometheus internal metrics to second units
* [CHANGE] Remove unversioned legacy HTTP API
* [CHANGE] Remove legacy ingestion of JSON metric format
* [CHANGE] Remove deprecated `target_groups` configuration
* [FEATURE] Add binary power operation to PromQL
* [FEATURE] Add `count_values` aggregator
* [FEATURE] Add `-web.route-prefix` flag
* [FEATURE] Allow `on()`, `by()`, `without()` in PromQL with empty label sets
* [ENHANCEMENT] Make `topk/bottomk` query functions aggregators
* [BUGFIX] Fix annotations in alert rule printing
* [BUGFIX] Expand alert templating at evaluation time
* [BUGFIX] Fix edge case handling in crash recovery
* [BUGFIX] Hide testing package flags from help output
## 0.20.0 / 2016-06-15
2016-06-15 08:31:26 -07:00
This release contains multiple breaking changes to the configuration schema.
* [FEATURE] Allow configuring multiple Alertmanagers
* [FEATURE] Add server name to TLS configuration
* [FEATURE] Add labels for all node addresses and discover node port if available in Kubernetes SD
* [ENHANCEMENT] More meaningful configuration errors
* [ENHANCEMENT] Round scraping timestamps to milliseconds in web UI
* [ENHANCEMENT] Make number of storage fingerprint locks configurable
* [BUGFIX] Fix date parsing in console template graphs
* [BUGFIX] Fix static console files in Docker images
* [BUGFIX] Fix console JS XHR requests for IE11
* [BUGFIX] Add missing path prefix in new status page
* [CHANGE] Rename `target_groups` to `static_configs` in config files
* [CHANGE] Rename `names` to `files` in file SD configuration
* [CHANGE] Remove kubelet port config option in Kubernetes SD configuration
## 0.19.3 / 2016-06-14
2016-06-14 05:19:31 -07:00
* [BUGFIX] Handle Marathon apps with zero ports
* [BUGFIX] Fix startup panic in retrieval layer
## 0.19.2 / 2016-05-29
* [BUGFIX] Correctly handle `GROUP_LEFT` and `GROUP_RIGHT` without labels in
string representation of expressions and in rules.
* [BUGFIX] Use `-web.external-url` for new status endpoints.
## 0.19.1 / 2016-05-25
2016-05-25 17:26:44 -07:00
* [BUGFIX] Handle service discovery panic affecting Kubernetes SD
* [BUGFIX] Fix web UI display issue in some browsers
## 0.19.0 / 2016-05-24
2016-05-24 14:04:58 -07:00
This version contains a breaking change to the query language. Please read
the documentation on the grouping behavior of vector matching:
2016-05-24 14:50:30 -07:00
https://prometheus.io/docs/querying/operators/#vector-matching
2016-05-24 14:04:58 -07:00
* [FEATURE] Add experimental Microsoft Azure service discovery
* [FEATURE] Add `ignoring` modifier for binary operations
* [FEATURE] Add pod discovery to Kubernetes service discovery
* [CHANGE] Vector matching takes grouping labels from one-side
* [ENHANCEMENT] Support time range on /api/v1/series endpoint
2016-05-24 15:11:46 -07:00
* [ENHANCEMENT] Partition status page into individual pages
2016-05-24 14:04:58 -07:00
* [BUGFIX] Fix issue of hanging target scrapes
## 0.18.0 / 2016-04-18
2016-04-07 07:11:00 -07:00
* [BUGFIX] Fix operator precedence in PromQL
2016-04-18 00:45:18 -07:00
* [BUGFIX] Never drop still open head chunk
* [BUGFIX] Fix missing 'keep_common' when printing AST node
2016-04-07 07:11:00 -07:00
* [CHANGE/BUGFIX] Target identity considers path and parameters additionally to host and port
* [CHANGE] Rename metric `prometheus_local_storage_invalid_preload_requests_total` to `prometheus_local_storage_non_existent_series_matches_total`
2016-04-09 03:55:49 -07:00
* [CHANGE] Support for old alerting rule syntax dropped
2016-04-07 07:11:00 -07:00
* [FEATURE] Deduplicate targets within the same scrape job
* [FEATURE] Add varbit chunk encoding (higher compression, more CPU usage disabled by default)
* [FEATURE] Add `holt_winters` query function
* [FEATURE] Add relative complement `unless` operator to PromQL
* [ENHANCEMENT] Quarantine series file if data corruption is encountered (instead of crashing)
* [ENHANCEMENT] Validate Alertmanager URL
* [ENHANCEMENT] Use UTC for build timestamp
* [ENHANCEMENT] Improve index query performance (especially for active time series)
* [ENHANCEMENT] Instrument configuration reload duration
* [ENHANCEMENT] Instrument retrieval layer
* [ENHANCEMENT] Add Go version to `prometheus_build_info` metric
## 0.17.0 / 2016-03-02
2016-01-27 07:09:38 -08:00
This version no longer works with Alertmanager 0.0.4 and earlier!
2016-01-27 07:09:38 -08:00
The alerting rule syntax has changed as well but the old syntax is supported
up until version 0.18.
2016-01-27 07:09:38 -08:00
All regular expressions in PromQL are anchored now, matching the behavior of
2016-03-02 08:58:01 -08:00
regular expressions in config files.
* [CHANGE] Integrate with Alertmanager 0.1.0 and higher
2016-01-27 07:09:38 -08:00
* [CHANGE] Degraded storage mode renamed to rushed mode
* [CHANGE] New alerting rule syntax
* [CHANGE] Add label validation on ingestion
* [CHANGE] Regular expression matchers in PromQL are anchored
2016-03-02 08:45:43 -08:00
* [FEATURE] Add `without` aggregation modifier
2016-01-27 07:09:38 -08:00
* [FEATURE] Send alert resolved notifications to Alertmanager
* [FEATURE] Allow millisecond precision in configuration file
* [FEATURE] Support AirBnB's Smartstack Nerve for service discovery
* [ENHANCEMENT] Storage switches less often between regular and rushed mode.
* [ENHANCEMENT] Storage switches into rushed mode if there are too many memory chunks.
* [ENHANCEMENT] Added more storage instrumentation
* [ENHANCEMENT] Improved instrumentation of notification handler
* [BUGFIX] Do not count head chunks as chunks waiting for persistence
2016-01-27 08:37:40 -08:00
* [BUGFIX] Handle OPTIONS HTTP requests to the API correctly
2016-01-27 07:09:38 -08:00
* [BUGFIX] Parsing of ranges in PromQL fixed
2016-01-27 08:37:40 -08:00
* [BUGFIX] Correctly validate URL flag parameters
2016-03-02 08:45:43 -08:00
* [BUGFIX] Log argument parse errors
* [BUGFIX] Properly handle creation of target with bad TLS config
* [BUGFIX] Fix of checkpoint timing issue
2016-01-27 07:09:38 -08:00
## 0.16.2 / 2016-01-18
2016-01-27 07:09:38 -08:00
* [FEATURE] Multiple authentication options for EC2 discovery added
* [FEATURE] Several meta labels for EC2 discovery added
* [FEATURE] Allow full URLs in static target groups (used e.g. by the `blackbox_exporter`)
* [FEATURE] Add Graphite remote-storage integration
* [FEATURE] Create separate Kubernetes targets for services and their endpoints
* [FEATURE] Add `clamp_{min,max}` functions to PromQL
* [FEATURE] Omitted time parameter in API query defaults to now
* [ENHANCEMENT] Less frequent time series file truncation
* [ENHANCEMENT] Instrument number of manually deleted time series
* [ENHANCEMENT] Ignore lost+found directory during storage version detection
* [CHANGE] Kubernetes `masters` renamed to `api_servers`
* [CHANGE] "Healthy" and "unhealthy" targets are now called "up" and "down" in the web UI
* [CHANGE] Remove undocumented 2nd argument of the `delta` function.
(This is a BREAKING CHANGE for users of the undocumented 2nd argument.)
* [BUGFIX] Return proper HTTP status codes on API errors
* [BUGFIX] Fix Kubernetes authentication configuration
* [BUGFIX] Fix stripped OFFSET from in rule evaluation and display
* [BUGFIX] Do not crash on failing Consul SD initialization
* [BUGFIX] Revert changes to metric auto-completion
* [BUGFIX] Add config overflow validation for TLS configuration
* [BUGFIX] Skip already watched Zookeeper nodes in serverset SD
* [BUGFIX] Don't federate stale samples
* [BUGFIX] Move NaN to end of result for `topk/bottomk/sort/sort_desc/min/max`
* [BUGFIX] Limit extrapolation of `delta/rate/increase`
* [BUGFIX] Fix unhandled error in rule evaluation
Some changes to the Kubernetes service discovery were integration since
it was released as a beta feature.
## 0.16.1 / 2015-10-16
2015-10-16 04:40:12 -07:00
* [FEATURE] Add `irate()` function.
* [ENHANCEMENT] Improved auto-completion in expression browser.
* [CHANGE] Kubernetes SD moves node label to instance label.
* [BUGFIX] Escape regexes in console templates.
## 0.16.0 / 2015-10-09
2015-09-11 08:29:25 -07:00
BREAKING CHANGES:
* Release tarballs now contain the built binaries in a nested directory.
* The `hash_mod` relabeling action now uses MD5 hashes instead of FNV hashes to
achieve a better distribution.
* The DNS-SD meta label `__meta_dns_srv_name` was renamed to `__meta_dns_name`
2015-10-08 12:12:21 -07:00
to reflect support for DNS record types other than `SRV`.
2015-09-11 08:29:25 -07:00
* The default full refresh interval for the file-based service discovery has been
increased from 30 seconds to 5 minutes.
* In relabeling, parts of a source label that weren't matched by
2015-10-08 12:12:21 -07:00
the specified regular expression are no longer included in the replacement
output.
2015-09-11 08:29:25 -07:00
* Queries no longer interpolate between two data points. Instead, the resulting
value will always be the latest value before the evaluation query timestamp.
* Regular expressions supplied via the configuration are now anchored to match
full strings instead of substrings.
* Global labels are not appended upon storing time series anymore. Instead,
they are only appended when communicating with external systems
2015-10-08 12:12:21 -07:00
(Alertmanager, remote storages, federation). They have thus also been renamed
from `global.labels` to `global.external_labels`.
2015-09-11 08:29:25 -07:00
* The names and units of metrics related to remote storage sample appends have
been changed.
* The experimental support for writing to InfluxDB has been updated to work
with InfluxDB 0.9.x. 0.8.x versions of InfluxDB are not supported anymore.
2015-10-08 12:12:21 -07:00
* Escape sequences in double- and single-quoted string literals in rules or query
expressions are now interpreted like escape sequences in Go string literals
(https://golang.org/ref/spec#String_literals).
Future breaking changes / deprecated features:
* The `delta()` function had an undocumented optional second boolean argument
to make it behave like `increase()`. This second argument will be removed in
the future. Migrate any occurrences of `delta(x, 1)` to use `increase(x)`
instead.
* Support for filter operators between two scalar values (like `2 > 1`) will be
removed in the future. These will require a `bool` modifier on the operator,
e.g. `2 > bool 1`.
2015-09-11 08:29:25 -07:00
All changes:
2015-10-08 12:12:21 -07:00
* [CHANGE] Renamed `global.labels` to `global.external_labels`.
2015-09-11 08:29:25 -07:00
* [CHANGE] Vendoring is now done via govendor instead of godep.
* [CHANGE] Change web UI root page to show the graphing interface instead of
the server status page.
* [CHANGE] Append global labels only when communicating with external systems
instead of storing them locally.
* [CHANGE] Change all regexes in the configuration to do full-string matches
instead of substring matches.
* [CHANGE] Remove interpolation of vector values in queries.
* [CHANGE] For alert `SUMMARY`/`DESCRIPTION` template fields, cast the alert
value to `float64` to work with common templating functions.
* [CHANGE] In relabeling, don't include unmatched source label parts in the
replacement.
* [CHANGE] Change default full refresh interval for the file-based service
discovery from 30 seconds to 5 minutes.
* [CHANGE] Rename the DNS-SD meta label `__meta_dns_srv_name` to
`__meta_dns_name` to reflect support for other record types than `SRV`.
* [CHANGE] Release tarballs now contain the binaries in a nested directory.
* [CHANGE] Update InfluxDB write support to work with InfluxDB 0.9.x.
2015-10-08 12:12:21 -07:00
* [FEATURE] Support full "Go-style" escape sequences in strings and add raw
string literals.
* [FEATURE] Add EC2 service discovery support.
2015-09-11 08:29:25 -07:00
* [FEATURE] Allow configuring TLS options in scrape configurations.
* [FEATURE] Add instrumentation around configuration reloads.
* [FEATURE] Add `bool` modifier to comparison operators to enable boolean
(`0`/`1`) output instead of filtering.
* [FEATURE] In Zookeeper serverset discovery, provide `__meta_serverset_shard`
label with the serverset shard number.
* [FEATURE] Provide `__meta_consul_service_id` meta label in Consul service
discovery.
* [FEATURE] Allow scalar expressions in recording rules to enable use cases
such as building constant metrics.
2015-09-18 04:10:02 -07:00
* [FEATURE] Add `label_replace()` and `vector()` query language functions.
2015-09-11 08:29:25 -07:00
* [FEATURE] In Consul service discovery, fill in the `__meta_consul_dc`
datacenter label from the Consul agent when it's not set in the Consul SD
config.
* [FEATURE] Scrape all services upon empty services list in Consul service
discovery.
* [FEATURE] Add `labelmap` relabeling action to map a set of input labels to a
set of output labels using regular expressions.
* [FEATURE] Introduce `__tmp` as a relabeling label prefix that is guaranteed
to not be used by Prometheus internally.
* [FEATURE] Kubernetes-based service discovery.
* [FEATURE] Marathon-based service discovery.
* [FEATURE] Support multiple series names in console graphs JavaScript library.
* [FEATURE] Allow reloading configuration via web handler at `/-/reload`.
* [FEATURE] Updates to promtool to reflect new Prometheus configuration
features.
* [FEATURE] Add `proxy_url` parameter to scrape configurations to enable use of
proxy servers.
* [FEATURE] Add console templates for Prometheus itself.
* [FEATURE] Allow relabeling the protocol scheme of targets.
* [FEATURE] Add `predict_linear()` query language function.
* [FEATURE] Support for authentication using bearer tokens, client certs, and
CA certs.
* [FEATURE] Implement unary expressions for vector types (`-foo`, `+foo`).
* [FEATURE] Add console templates for the SNMP exporter.
* [FEATURE] Make it possible to relabel target scrape query parameters.
* [FEATURE] Add support for `A` and `AAAA` records in DNS service discovery.
2015-10-08 12:12:21 -07:00
* [ENHANCEMENT] Fix several flaky tests.
* [ENHANCEMENT] Switch to common routing package.
* [ENHANCEMENT] Use more resilient metric decoder.
2015-09-11 08:29:25 -07:00
* [ENHANCEMENT] Update vendored dependencies.
* [ENHANCEMENT] Add compression to more HTTP handlers.
* [ENHANCEMENT] Make -web.external-url flag help string more verbose.
* [ENHANCEMENT] Improve metrics around remote storage queues.
* [ENHANCEMENT] Use Go 1.5.1 instead of Go 1.4.2 in builds.
* [ENHANCEMENT] Update the architecture diagram in the `README.md`.
* [ENHANCEMENT] Time out sample appends in retrieval layer if the storage is
backlogging.
* [ENHANCEMENT] Make `hash_mod` relabeling action use MD5 instead of FNV to
enable better hash distribution.
* [ENHANCEMENT] Better tracking of targets between same service discovery
mechanisms in one scrape configuration.
* [ENHANCEMENT] Handle parser and query evaluation runtime panics more
gracefully.
* [ENHANCEMENT] Add IDs to H2 tags on status page to allow anchored linking.
2015-10-08 12:12:21 -07:00
* [BUGFIX] Fix watching multiple paths with Zookeeper serverset discovery.
* [BUGFIX] Fix high CPU usage on configuration reload.
* [BUGFIX] Fix disappearing `__params` on configuration reload.
* [BUGFIX] Make `labelmap` action available through configuration.
* [BUGFIX] Fix direct access of protobuf fields.
* [BUGFIX] Fix panic on Consul request error.
* [BUGFIX] Redirect of graph endpoint for prefixed setups.
2015-09-11 08:29:25 -07:00
* [BUGFIX] Fix series file deletion behavior when purging archived series.
* [BUGFIX] Fix error checking and logging around checkpointing.
* [BUGFIX] Fix map initialization in target manager.
* [BUGFIX] Fix draining of file watcher events in file-based service discovery.
* [BUGFIX] Add `POST` handler for `/debug` endpoints to fix CPU profiling.
* [BUGFIX] Fix several flaky tests.
* [BUGFIX] Fix busylooping in case a scrape configuration has no target
providers defined.
* [BUGFIX] Fix exit behavior of static target provider.
* [BUGFIX] Fix configuration reloading loop upon shutdown.
* [BUGFIX] Add missing check for nil expression in expression parser.
* [BUGFIX] Fix error handling bug in test code.
* [BUGFIX] Fix Consul port meta label.
* [BUGFIX] Fix lexer bug that treated non-Latin Unicode digits as digits.
2015-10-08 12:12:21 -07:00
* [CLEANUP] Remove obsolete federation example from console templates.
* [CLEANUP] Remove duplicated Bootstrap JS inclusion on graph page.
* [CLEANUP] Switch to common log package.
2015-09-11 08:29:25 -07:00
* [CLEANUP] Update build environment scripts and Makefiles to work better with
native Go build mechanisms and new Go 1.5 experimental vendoring support.
* [CLEANUP] Remove logged notice about 0.14.x configuration file format change.
* [CLEANUP] Move scrape-time metric label modification into SampleAppenders.
* [CLEANUP] Switch from `github.com/client_golang/model` to
`github.com/common/model` and related type cleanups.
* [CLEANUP] Switch from `github.com/client_golang/extraction` to
`github.com/common/expfmt` and related type cleanups.
* [CLEANUP] Exit Prometheus when the web server encounters a startup error.
* [CLEANUP] Remove non-functional alert-silencing links on alerting page.
* [CLEANUP] General cleanups to comments and code, derived from `golint`,
`go vet`, or otherwise.
* [CLEANUP] When entering crash recovery, tell users how to cleanly shut down
Prometheus.
* [CLEANUP] Remove internal support for multi-statement queries in query engine.
* [CLEANUP] Update AUTHORS.md.
* [CLEANUP] Don't warn/increment metric upon encountering equal timestamps for
the same series upon append.
* [CLEANUP] Resolve relative paths during configuration loading.
## 0.15.1 / 2015-07-27
2015-07-27 08:11:35 -07:00
* [BUGFIX] Fix vector matching behavior when there is a mix of equality and
non-equality matchers in a vector selector and one matcher matches no series.
* [ENHANCEMENT] Allow overriding `GOARCH` and `GOOS` in Makefile.INCLUDE.
* [ENHANCEMENT] Update vendored dependencies.
## 0.15.0 / 2015-07-21
2015-07-16 07:23:43 -07:00
BREAKING CHANGES:
2015-07-27 08:11:35 -07:00
* 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`
to `data` in the local directory.
2015-07-27 08:11:35 -07:00
* The `rule_checker` tool has been replaced by `promtool` with
different flags and more functionality.
2015-07-27 08:11:35 -07:00
* 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 have
`label` set at all).
2015-07-27 08:11:35 -07:00
* The special `__meta_consul_tags` label in Consul service discovery
now starts and ends with tag separators to enable easier regex
matching.
2015-07-27 08:11:35 -07:00
* The default scrape interval has been changed back from 1 minute to
10 seconds.
2015-07-16 07:23:43 -07:00
2015-09-11 08:29:25 -07:00
All changes:
2015-07-16 07:23:43 -07:00
2015-07-27 08:11:35 -07:00
* [CHANGE] Change default storage directory to `data` in the current
working directory.
2015-07-27 08:11:35 -07:00
* [CHANGE] Consolidate external reachability flags (`-web.*`)into one.
* [CHANGE] Deprecate `keeping_extra` modifier keyword, rename it to
`keep_common`.
2015-07-27 08:11:35 -07:00
* [CHANGE] Improve label matching performance and treat unset labels
like empty labels in label matchers.
2015-07-27 08:11:35 -07:00
* [CHANGE] Remove `rule_checker` tool and add generic `promtool` CLI
tool which allows checking rules and configuration files.
2015-07-27 08:11:35 -07:00
* [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`, and `ServicePort` as
meta labels to enable setting a custom scrape address if needed.
2015-07-27 08:11:35 -07:00
* [FEATURE] Add `hashmod` relabel action to allow for horizontal
sharding of Prometheus servers.
2015-07-27 08:11:35 -07:00
* [FEATURE] Add `honor_labels` scrape configuration option to not
overwrite any labels exposed by the target.
2015-07-27 08:11:35 -07:00
* [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.
2015-07-27 08:11:35 -07:00
* [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.
2015-07-27 08:11:35 -07:00
* [ENHANCEMENT] Start HUP signal handler earlier to not exit upon HUP
during startup.
2015-07-27 08:11:35 -07:00
* [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.
2015-07-27 08:11:35 -07:00
* [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.
2015-07-27 08:11:35 -07:00
* [BUGFIX] Periodically refresh services in Consul to recover from
missing events.
2015-07-27 08:11:35 -07:00
* [BUGFIX] Prevent overwrite of default global config when loading a
configuration.
2015-07-27 08:11:35 -07:00
* [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` and `golint` 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.
2015-07-27 08:11:35 -07:00
* [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.
2015-06-24 07:58:36 -07:00
## 0.14.0 / 2015-06-01
2015-06-24 07:58:36 -07:00
* [CHANGE] Configuration format changed and switched to YAML.
2015-06-01 09:19:04 -07:00
(See the provided [migration tool](https://github.com/prometheus/migrate/releases).)
* [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
2015-06-01 09:19:04 -07:00
* [BUGFIX] Fix a race while checkpointing fingerprint mappings.
## 0.13.3 / 2015-05-11
2015-05-11 08:55:42 -07:00
* [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
2015-10-20 22:25:24 -07:00
* [MAINTENANCE] Updated vendored dependencies to their newest versions.
2015-05-05 11:29:23 -07:00
* [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
2015-04-09 07:36:04 -07:00
* [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
2015-04-08 09:40:14 -07:00
* [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
2015-03-04 04:50:58 -08:00
* [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,
2015-02-27 02:47:43 -08:00
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.
2015-04-08 09:40:14 -07:00
## 0.11.0 / 2015-02-23
2015-02-23 09:26:51 -08:00
* [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
2015-01-26 06:35:57 -08:00
* [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
2015-01-23 07:13:01 -08:00
* [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.
2015-01-23 07:13:01 -08:00
* [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.