FiloDB 0.8.7

Release 0.8.7

New features / Enhancements

• [PromQL] Rate and increase functions for HistogramColumn
• [PromQL] Operator precedence
• [PromQL] Support for “changes” function
• [PromQL] Sort and sort desc functions
• [TSDB] More progress towards full multi-schema support
• [TSDB] Ability to respond to gauge-related PromQL queries from downsampled data
• [TSDB] Routing queries based on failure time ranges across pods/cluster, and routing for instant queries

Bug fixes

• [TSDB] Release IndexSearchers after each use, reducing disk usage and host termination
• [TSDB] More fixes for memory management issues which can lead to “match errors”, which in turn cause queries to fail
• [Gateway] Honor order in copyTags

Reliability / Tooling improvements

• [TSDB] Additional memory management tracing for diagnosing “match error” corruption issues
• [TSDB] Trusty build in travis

For more details, please view the git change log.

FiloDB 0.8.5

Release 0.8.5

New features / Enhancements

• Optimize Aggregate over vector function by 2x for no grouping
• Allow metric name as tag in promQL and allow escape chars in tag values
• ExplainPlan support in FiloDB HTTP
• Add multiline query support
• Query Support for Label Join
• Spread override and non metric shard keys based spread support
• Made FiloDB and Query Service connection more reliable

Bug fixes

• Fix very rare partition ID collision
• Fix edge case for DDV encoding where first value != the rest
• Including missed time bucket during index recovery
• Fix DeltaDelta bug where slope(int) multiply overflowed
• Fix corner cases in indexing of intermittent time series
• Fix race conditions with internal bloom filter
• Schedule flush tasks in the correct thread, to preventing lock conflicts with ingestion
• Improve handling of ingestion recovery exceptions
• Binary join having ignoring/on bug fix
• Comparison operator returns empty metric bug fix
• Topk/bottomk function bug fix

Reliability / Tooling improvements

• Detailed ingestion logging for matching subset of records
• Full shard state command to resync shard mapping
• Use shared ingestion buffer memory, to prevent out of memory errors when shards are imbalanced
• Return extra WriteBuffer memory back for reuse
• Add shared lock debugging checks for ingestion thread

For more details, please view the git change log.

FiloDB 0.8.4.1

Release 0.8.4

Bug fixe(s)

• Added batching logic on lucene query

FiloDB 0.8.4

Release 0.8.4

New features / Enhancements

• Foundational features for non-increasing type HistogramColumn along with relevant query functions
• Improved support for intermittently publishing time series
• Support for stitching query results when spread changes
• Query Support for Label Replace, Comparison Operators
• Optimize index recovery for long term retention

Bug fixes

• Various bug fixes and improvements in Query Engine
• Demand page from Cassandra only if Lucene index indicates that there is data

Reliability / Tooling improvements

• Reduced query bottlenecks by further parallelizing query steps
• Several stabilization fixes for memory handling and locking

For more details, please view the git change log.

FiloDB 0.8.3

Release 0.8.3

New features / Enhancements

• Simplify in-memory chunk index data structure

• Bug fixes

• Fix cases where binary joins could return incorrect results

• Handle no data cases in {aggregate}_over_time functions

• Fix minor bug in resets function

• Reliability / Tooling improvements

• Added bounds check to correctly access off-heap memory

• Several stabilization fixes for memory handling and locking

• Fixes for edge cases that could potentially corrupt data

• Integrate with tracing infrastructure

For more details, please view the git change log.

Release of FiloDB v0.8.2

This release covers 89 commits total.

• New query functionality: histogram_quantile, resets, deriv, idelta, irate
• New metadata query capabilities, support for listing time series matching certain criteria
• Major query performance improvements, especially for *_over_time functions. Functions which use last sample windowing and *_over_time run up to 7.5x faster.
• Many fixes to query functionality
• Fixes and stabilization around memory handling, locking, and preventing data corruption
• Internal debugging query function: _filodb_chunkmeta_all()