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349 lines
18 KiB
349 lines
18 KiB
## 0.15.1 / 2015-07-27
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* [BUGFIX] Fix vector matching behavior when there is a mix of equality and
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non-equality matchers in a vector selector and one matcher matches no series.
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* [ENHANCEMENT] Allow overriding `GOARCH` and `GOOS` in Makefile.INCLUDE.
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* [ENHANCEMENT] Update vendored dependencies.
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## 0.15.0 / 2015-07-21
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BREAKING CHANGES:
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* Relative paths for rule files are now evaluated relative to the config file.
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* External reachability flags (`-web.*`) consolidated.
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* The default storage directory has been changed from `/tmp/metrics`
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to `data` in the local directory.
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* The `rule_checker` tool has been replaced by `promtool` with
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different flags and more functionality.
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* Empty labels are now removed upon ingestion into the
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storage. Matching empty labels is now equivalent to matching unset
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labels (`mymetric{label=""}` now matches series that don't have
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`label` set at all).
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* The special `__meta_consul_tags` label in Consul service discovery
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now starts and ends with tag separators to enable easier regex
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matching.
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* The default scrape interval has been changed back from 1 minute to
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10 seconds.
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ALL CHANGES:
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* [CHANGE] Change default storage directory to `data` in the current
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working directory.
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* [CHANGE] Consolidate external reachability flags (`-web.*`)into one.
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* [CHANGE] Deprecate `keeping_extra` modifier keyword, rename it to
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`keep_common`.
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* [CHANGE] Improve label matching performance and treat unset labels
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like empty labels in label matchers.
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* [CHANGE] Remove `rule_checker` tool and add generic `promtool` CLI
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tool which allows checking rules and configuration files.
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* [CHANGE] Resolve rule files relative to config file.
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* [CHANGE] Restore default ScrapeInterval of 1 minute instead of 10 seconds.
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* [CHANGE] Surround `__meta_consul_tags` value with tag separators.
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* [CHANGE] Update node disk console for new filesystem labels.
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* [FEATURE] Add Consul's `ServiceAddress`, `Address`, and `ServicePort` as
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meta labels to enable setting a custom scrape address if needed.
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* [FEATURE] Add `hashmod` relabel action to allow for horizontal
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sharding of Prometheus servers.
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* [FEATURE] Add `honor_labels` scrape configuration option to not
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overwrite any labels exposed by the target.
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* [FEATURE] Add basic federation support on `/federate`.
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* [FEATURE] Add optional `RUNBOOK` field to alert statements.
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* [FEATURE] Add pre-relabel target labels to status page.
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* [FEATURE] Add version information endpoint under `/version`.
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* [FEATURE] Added initial stable API version 1 under `/api/v1`,
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including ability to delete series and query more metadata.
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* [FEATURE] Allow configuring query parameters when scraping metrics endpoints.
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* [FEATURE] Allow deleting time series via the new v1 API.
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* [FEATURE] Allow individual ingested metrics to be relabeled.
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* [FEATURE] Allow loading rule files from an entire directory.
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* [FEATURE] Allow scalar expressions in range queries, improve error messages.
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* [FEATURE] Support Zookeeper Serversets as a service discovery mechanism.
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* [ENHANCEMENT] Add circleci yaml for Dockerfile test build.
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* [ENHANCEMENT] Always show selected graph range, regardless of available data.
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* [ENHANCEMENT] Change expression input field to multi-line textarea.
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* [ENHANCEMENT] Enforce strict monotonicity of time stamps within a series.
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* [ENHANCEMENT] Export build information as metric.
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* [ENHANCEMENT] Improve UI of `/alerts` page.
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* [ENHANCEMENT] Improve display of target labels on status page.
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* [ENHANCEMENT] Improve initialization and routing functionality of web service.
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* [ENHANCEMENT] Improve target URL handling and display.
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* [ENHANCEMENT] New dockerfile using alpine-glibc base image and make.
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* [ENHANCEMENT] Other minor fixes.
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* [ENHANCEMENT] Preserve alert state across reloads.
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* [ENHANCEMENT] Prettify flag help output even more.
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* [ENHANCEMENT] README.md updates.
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* [ENHANCEMENT] Raise error on unknown config parameters.
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* [ENHANCEMENT] Refine v1 HTTP API output.
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* [ENHANCEMENT] Show original configuration file contents on status
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page instead of serialized YAML.
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* [ENHANCEMENT] Start HUP signal handler earlier to not exit upon HUP
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during startup.
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* [ENHANCEMENT] Updated vendored dependencies.
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* [BUGFIX] Do not panic in `StringToDuration()` on wrong duration unit.
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* [BUGFIX] Exit on invalid rule files on startup.
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* [BUGFIX] Fix a regression in the `.Path` console template variable.
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* [BUGFIX] Fix chunk descriptor loading.
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* [BUGFIX] Fix consoles "Prometheus" link to point to /
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* [BUGFIX] Fix empty configuration file cases
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* [BUGFIX] Fix float to int conversions in chunk encoding, which were
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broken for some architectures.
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* [BUGFIX] Fix overflow detection for serverset config.
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* [BUGFIX] Fix race conditions in retrieval layer.
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* [BUGFIX] Fix shutdown deadlock in Consul SD code.
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* [BUGFIX] Fix the race condition targets in the Makefile.
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* [BUGFIX] Fix value display error in web console.
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* [BUGFIX] Hide authentication credentials in config `String()` output.
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* [BUGFIX] Increment dirty counter metric in storage only if
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`setDirty(true)` is called.
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* [BUGFIX] Periodically refresh services in Consul to recover from
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missing events.
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* [BUGFIX] Prevent overwrite of default global config when loading a
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configuration.
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* [BUGFIX] Properly lex `\r` as whitespace in expression language.
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* [BUGFIX] Validate label names in JSON target groups.
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* [BUGFIX] Validate presence of regex field in relabeling configurations.
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* [CLEANUP] Clean up initialization of remote storage queues.
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* [CLEANUP] Fix `go vet` and `golint` violations.
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* [CLEANUP] General cleanup of rules and query language code.
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* [CLEANUP] Improve and simplify Dockerfile build steps.
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* [CLEANUP] Improve and simplify build infrastructure, use go-bindata
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for web assets. Allow building without git.
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* [CLEANUP] Move all utility packages into common `util` subdirectory.
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* [CLEANUP] Refactor main, flag handling, and web package.
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* [CLEANUP] Remove unused methods from `Rule` interface.
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* [CLEANUP] Simplify default config handling.
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* [CLEANUP] Switch human-readable times on web UI to UTC.
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* [CLEANUP] Use `templates.TemplateExpander` for all page templates.
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* [CLEANUP] Use new v1 HTTP API for querying and graphing.
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## 0.14.0 / 2015-06-01
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* [CHANGE] Configuration format changed and switched to YAML.
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(See the provided [migration tool](https://github.com/prometheus/migrate/releases).)
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* [ENHANCEMENT] Redesign of state-preserving target discovery.
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* [ENHANCEMENT] Allow specifying scrape URL scheme and basic HTTP auth for non-static targets.
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* [FEATURE] Allow attaching meaningful labels to targets via relabeling.
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* [FEATURE] Configuration/rule reloading at runtime.
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* [FEATURE] Target discovery via file watches.
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* [FEATURE] Target discovery via Consul.
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* [ENHANCEMENT] Simplified binary operation evaluation.
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* [ENHANCEMENT] More stable component initialization.
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* [ENHANCEMENT] Added internal expression testing language.
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* [BUGFIX] Fix graph links with path prefix.
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* [ENHANCEMENT] Allow building from source without git.
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* [ENHANCEMENT] Improve storage iterator performance.
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* [ENHANCEMENT] Change logging output format and flags.
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* [BUGFIX] Fix memory alignment bug for 32bit systems.
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* [ENHANCEMENT] Improve web redirection behavior.
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* [ENHANCEMENT] Allow overriding default hostname for Prometheus URLs.
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* [BUGFIX] Fix double slash in URL sent to alertmanager.
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* [FEATURE] Add resets() query function to count counter resets.
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* [FEATURE] Add changes() query function to count the number of times a gauge changed.
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* [FEATURE] Add increase() query function to calculate a counter's increase.
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* [ENHANCEMENT] Limit retrievable samples to the storage's retention window.
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## 0.13.4 / 2015-05-23
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* [BUGFIX] Fix a race while checkpointing fingerprint mappings.
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## 0.13.3 / 2015-05-11
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* [BUGFIX] Handle fingerprint collisions properly.
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* [CHANGE] Comments in rules file must start with `#`. (The undocumented `//`
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and `/*...*/` comment styles are no longer supported.)
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* [ENHANCEMENT] Switch to custom expression language parser and evaluation
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engine, which generates better error messages, fixes some parsing edge-cases,
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and enables other future enhancements (like the ones below).
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* [ENHANCEMENT] Limit maximum number of concurrent queries.
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* [ENHANCEMENT] Terminate running queries during shutdown.
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## 0.13.2 / 2015-05-05
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* [MAINTENANCE] Updated vendored dependcies to their newest versions.
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* [MAINTENANCE] Include rule_checker and console templates in release tarball.
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* [BUGFIX] Sort NaN as the lowest value.
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* [ENHANCEMENT] Add square root, stddev and stdvar functions.
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* [BUGFIX] Use scrape_timeout for scrape timeout, not scrape_interval.
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* [ENHANCEMENT] Improve chunk and chunkDesc loading, increase performance when
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reading from disk.
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* [BUGFIX] Show correct error on wrong DNS response.
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## 0.13.1 / 2015-04-09
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* [BUGFIX] Treat memory series with zero chunks correctly in series maintenance.
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* [ENHANCEMENT] Improve readability of usage text even more.
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## 0.13.0 / 2015-04-08
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* [ENHANCEMENT] Double-delta encoding for chunks, saving typically 40% of
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space, both in RAM and on disk.
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* [ENHANCEMENT] Redesign of chunk persistence queuing, increasing performance
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on spinning disks significantly.
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* [ENHANCEMENT] Redesign of sample ingestion, increasing ingestion performance.
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* [FEATURE] Added ln, log2, log10 and exp functions to the query language.
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* [FEATURE] Experimental write support to InfluxDB.
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* [FEATURE] Allow custom timestamps in instant query API.
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* [FEATURE] Configurable path prefix for URLs to support proxies.
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* [ENHANCEMENT] Increase of rule_checker CLI usability.
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* [CHANGE] Show special float values as gaps.
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* [ENHANCEMENT] Made usage output more readable.
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* [ENHANCEMENT] Increased resilience of the storage against data corruption.
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* [ENHANCEMENT] Various improvements around chunk encoding.
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* [ENHANCEMENT] Nicer formatting of target health table on /status.
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* [CHANGE] Rename UNREACHABLE to UNHEALTHY, ALIVE to HEALTHY.
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* [BUGFIX] Strip trailing slash in alertmanager URL.
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* [BUGFIX] Avoid +InfYs and similar, just display +Inf.
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* [BUGFIX] Fixed HTML-escaping at various places.
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* [BUGFIX] Fixed special value handling in division and modulo of the query
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language.
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* [BUGFIX] Fix embed-static.sh.
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* [CLEANUP] Added intial HTTP API tests.
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* [CLEANUP] Misc. other code cleanups.
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* [MAINTENANCE] Updated vendored dependcies to their newest versions.
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## 0.12.0 / 2015-03-04
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* [CHANGE] Use client_golang v0.3.1. THIS CHANGES FINGERPRINTING AND INVALIDATES
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ALL PERSISTED FINGERPRINTS. You have to wipe your storage to use this or
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later versions. There is a version guard in place that will prevent you to
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run Prometheus with the stored data of an older Prometheus.
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* [BUGFIX] The change above fixes a weakness in the fingerprinting algorithm.
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* [ENHANCEMENT] The change above makes fingerprinting faster and less allocation
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intensive.
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* [FEATURE] OR operator and vector matching options. See docs for details.
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* [ENHANCEMENT] Scientific notation and special float values (Inf, NaN) now
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supported by the expression language.
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* [CHANGE] Dockerfile makes Prometheus use the Docker volume to store data
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(rather than /tmp/metrics).
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* [CHANGE] Makefile uses Go 1.4.2.
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## 0.11.1 / 2015-02-27
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* [BUGFIX] Make series maintenance complete again. (Ever since 0.9.0rc4,
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or commit 0851945, series would not be archived, chunk descriptors would
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not be evicted, and stale head chunks would never be closed. This happened
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due to accidental deletion of a line calling a (well tested :) function.
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* [BUGFIX] Do not double count head chunks read from checkpoint on startup.
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Also fix a related but less severe bug in counting chunk descriptors.
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* [BUGFIX] Check last time in head chunk for head chunk timeout, not first.
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* [CHANGE] Update vendoring due to vendoring changes in client_golang.
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* [CLEANUP] Code cleanups.
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* [ENHANCEMENT] Limit the number of 'dirty' series counted during checkpointing.
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## 0.11.0 / 2015-02-23
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* [FEATURE] Introduce new metric type Histogram with server-side aggregation.
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* [FEATURE] Add offset operator.
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* [FEATURE] Add floor, ceil and round functions.
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* [CHANGE] Change instance identifiers to be host:port.
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* [CHANGE] Dependency management and vendoring changed/improved.
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* [CHANGE] Flag name changes to create consistency between various Prometheus
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binaries.
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* [CHANGE] Show unlimited number of metrics in autocomplete.
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* [CHANGE] Add query timeout.
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* [CHANGE] Remove labels on persist error counter.
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* [ENHANCEMENT] Various performance improvements for sample ingestion.
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* [ENHANCEMENT] Various Makefile improvements.
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* [ENHANCEMENT] Various console template improvements, including
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proof-of-concept for federation via console templates.
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* [ENHANCEMENT] Fix graph JS glitches and simplify graphing code.
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* [ENHANCEMENT] Dramatically decrease resources for file embedding.
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* [ENHANCEMENT] Crash recovery saves lost series data in 'orphaned' directory.
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* [BUGFIX] Fix aggregation grouping key calculation.
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* [BUGFIX] Fix Go download path for various architectures.
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* [BUGFIX] Fixed the link of the Travis build status image.
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* [BUGFIX] Fix Rickshaw/D3 version mismatch.
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* [CLEANUP] Various code cleanups.
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## 0.10.0 / 2015-01-26
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* [CHANGE] More efficient JSON result format in query API. This requires
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up-to-date versions of PromDash and prometheus_cli, too.
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* [ENHANCEMENT] Excluded non-minified Bootstrap assets and the Bootstrap maps
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from embedding into the binary. Those files are only used for debugging,
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and then you can use -web.use-local-assets. By including fewer files, the
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RAM usage during compilation is much more manageable.
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* [ENHANCEMENT] Help link points to http://prometheus.github.io now.
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* [FEATURE] Consoles for haproxy and cloudwatch.
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* [BUGFIX] Several fixes to graphs in consoles.
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* [CLEANUP] Removed a file size check that did not check anything.
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## 0.9.0 / 2015-01-23
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* [CHANGE] Reworked command line flags, now more consistent and taking into
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account needs of the new storage backend (see below).
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* [CHANGE] Metric names are dropped after certain transformations.
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* [CHANGE] Changed partitioning of summary metrics exported by Prometheus.
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* [CHANGE] Got rid of Gerrit as a review tool.
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* [CHANGE] 'Tabular' view now the default (rather than 'Graph') to avoid
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running very expensive queries accidentally.
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* [CHANGE] On-disk format for stored samples changed. For upgrading, you have
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to nuke your old files completely. See "Complete rewrite of the storage
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* [CHANGE] Removed 2nd argument from `delta`.
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* [FEATURE] Added a `deriv` function.
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* [FEATURE] Console templates.
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* [FEATURE] Added `absent` function.
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* [FEATURE] Allow omitting the metric name in queries.
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* [BUGFIX] Removed all known race conditions.
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* [BUGFIX] Metric mutations now handled correctly in all cases.
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* [ENHANCEMENT] Proper double-start protection.
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* [ENHANCEMENT] Complete rewrite of the storage layer. Benefits include:
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* Better query performance.
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* More samples in less RAM.
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* Better memory management.
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* Scales up to millions of time series and thousands of samples ingested
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per second.
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* Purging of obsolete samples much cleaner now, up to completely
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"forgetting" obsolete time series.
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* Proper instrumentation to diagnose the storage layer with... well...
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Prometheus.
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* Pure Go implementation, no need for cgo and shared C libraries anymore.
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* Better concurrency.
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* [ENHANCEMENT] Copy-on-write semantics in the AST layer.
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* [ENHANCEMENT] Switched from Go 1.3 to Go 1.4.
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* [ENHANCEMENT] Vendored external dependencies with godeps.
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* [ENHANCEMENT] Numerous Web UI improvements, moved to Bootstrap3 and
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Rickshaw 1.5.1.
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* [ENHANCEMENT] Improved Docker integration.
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* [ENHANCEMENT] Simplified the Makefile contraption.
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* [CLEANUP] Put meta-data files into proper shape (LICENSE, README.md etc.)
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* [CLEANUP] Removed all legitimate 'go vet' and 'golint' warnings.
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* [CLEANUP] Removed dead code.
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## 0.8.0 / 2014-09-04
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* [ENHANCEMENT] Stagger scrapes to spread out load.
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* [BUGFIX] Correctly quote HTTP Accept header.
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## 0.7.0 / 2014-08-06
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* [FEATURE] Added new functions: abs(), topk(), bottomk(), drop_common_labels().
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* [FEATURE] Let console templates get graph links from expressions.
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* [FEATURE] Allow console templates to dynamically include other templates.
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* [FEATURE] Template consoles now have access to their URL.
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* [BUGFIX] Fixed time() function to return evaluation time, not wallclock time.
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* [BUGFIX] Fixed HTTP connection leak when targets returned a non-200 status.
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* [BUGFIX] Fixed link to console templates in UI.
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* [PERFORMANCE] Removed extra memory copies while scraping targets.
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* [ENHANCEMENT] Switched from Go 1.2.1 to Go 1.3.
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* [ENHANCEMENT] Made metrics exported by Prometheus itself more consistent.
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* [ENHANCEMENT] Removed incremental backoffs for unhealthy targets.
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* [ENHANCEMENT] Dockerfile also builds Prometheus support tools now.
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## 0.6.0 / 2014-06-30
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* [FEATURE] Added console and alert templates support, along with various template functions.
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* [PERFORMANCE] Much faster and more memory-efficient flushing to disk.
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* [ENHANCEMENT] Query results are now only logged when debugging.
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* [ENHANCEMENT] Upgraded to new Prometheus client library for exposing metrics.
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* [BUGFIX] Samples are now kept in memory until fully flushed to disk.
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* [BUGFIX] Non-200 target scrapes are now treated as an error.
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* [BUGFIX] Added installation step for missing dependency to Dockerfile.
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* [BUGFIX] Removed broken and unused "User Dashboard" link.
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## 0.5.0 / 2014-05-28
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* [BUGFIX] Fixed next retrieval time display on status page.
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* [BUGFIX] Updated some variable references in tools subdir.
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* [FEATURE] Added support for scraping metrics via the new text format.
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* [PERFORMANCE] Improved label matcher performance.
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* [PERFORMANCE] Removed JSON indentation in query API, leading to smaller response sizes.
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* [ENHANCEMENT] Added internal check to verify temporal order of streams.
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* [ENHANCEMENT] Some internal refactorings.
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## 0.4.0 / 2014-04-17
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* [FEATURE] Vectors and scalars may now be reversed in binary operations (`<scalar> <binop> <vector>`).
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* [FEATURE] It's possible to shutdown Prometheus via a `/-/quit` web endpoint now.
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* [BUGFIX] Fix for a deadlock race condition in the memory storage.
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* [BUGFIX] Mac OS X build fixed.
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* [BUGFIX] Built from Go 1.2.1, which has internal fixes to race conditions in garbage collection handling.
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* [ENHANCEMENT] Internal storage interface refactoring that allows building e.g. the `rule_checker` tool without LevelDB dynamic library dependencies.
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* [ENHANCEMENT] Cleanups around shutdown handling.
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* [PERFORMANCE] Preparations for better memory reuse during marshalling / unmarshalling.
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