v0.16.0

v0.16.0 - March 2, 2017

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Features

• Support for protobuf3

Misc/Bugs

• siphash -> sip13 for hashing tags/metrics (minor performance improvement)
• fix missing pprof HTTP routes (/debug/pprof/{heap|profile|block|trace})
• stop materializing and release memory back to the OS once graceful restart is triggered: this creates space for the new instance to load up

v0.15.0

v0.15.0 - Feb 6, 2017

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Features

• Support for quoting pieces of text-match queries using < and >. This allows selecting pieces of metric that span dots, like so: text-match:<df.root.bytes_free>. This requires a carbonapi equal to or newer than 79f91477a.
• Graceful restart using a facebookgo/grace. Send SIGUSR2 to spawn a new carbonsearch. The old process will hand over to the new one once the new one has warmed up.
• Warmup period: carbonsearch will wait until it has ingested enough data to serve search queries. This is managed by the warm_threshold config setting on a per-consumer basis. This may be bypassed by passing -coldStart on the command line.

Config

• warm_threshold: a ratio (valid range: 0 to 1) that describes how much progress a consumer should make before considering itself warm. For the Kafka consumer this represents position in the buffer relative to first offset seen; the HTTP consumer must be informed of progress using a POST to /consumer/progress.

Misc/Bugs

• index materialization timings are now only logged under debug builds

v0.14.0

v0.14.0 - Dec 5, 2016

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This is the first tagged release, so changes are from previously deployed version (28fbc853).

Features

• autocomplete for queries that have a trailing glob. When deployed alongside carbonzipper 64a4933, carbonsearch queries can be auto-completed from the graphite-web UI.

Config

• change default search prefix to 'virt.v1.*.' for better graphite-web support (49b6a91 for details)
• support prefix in config file (rather than a CLI flag)
• split indexes mapping now associates multiple services with a single index (link)

Reporting

• new graphite metrics for index generation timings and index sizes
• request logging for all requests, query time + result counts for Find requests

Misc/Bugs

• various small tweaks to make carbonsearch clean against go-staticcheck, other cleanups based on various other linters/static checkers
• include BuildVersion in ExpVars