CloneArchive safely clones an archive.

NewTagQueryContext takes a tag query and wraps it into all the context structs necessary to execute the query on the indexes.

NewTimeLimiter creates a new TimeLimiter.

NewWriteQueue creates a new writeQueue that will add archives to the passed UnpartitionedMemoryIdx in batches.

number of workers to spin up when evaluation tag expressions.

FindCache is a caching layer for the in-memory index.

Implements the the "MetricIndex" interface.

TagQueryContext runs a set of pattern or string matches on tag keys and values against the index.

TimeLimiter limits the rate of a set of serial operations.

interface implemented by both UnpartitionedMemoryIdx and PartitionedMemoryIdx this is needed to support unit tests.