Commit graph

10 commits

Author SHA1 Message Date
beorn7 6f33ab2b35 Merge branch 'main' into sparsehistogram 2021-12-15 13:49:33 +01:00
detailyang 3e482c905f
fix:storage:avoid panic when iterater exhauested (#9945)
Signed-off-by: detailyang <detailyang@gmail.com>
2021-12-07 19:50:00 +05:30
beorn7 e4e24453fa Merge branch 'main' into beorn7/merge2 2021-11-30 17:19:06 +01:00
Björn Rabenstein 4ce01e9770
storage: Rename ...Values methods to At... (#9889)
This mirrors #9888 for the richer iterators we have with histograms in
the game.

Signed-off-by: beorn7 <beorn@grafana.com>
2021-11-29 16:23:04 +05:30
Björn Rabenstein d677aa4b29
storage: Consolidate iterator method names (Values -> At) (#9888)
`BufferedSeriesIterator` and `MemoizedSeriesIterator` use a method
called `Values` for exactly the purpose for which all other iterators
of the same kind use a method called `At`. That alone is confusing,
but on top of that, the `Values` method only returns a single sample,
not multiple values. I assume the naming has historical reasons. This
commit makes it more consistent. It is now easier to read, and now
`BufferedSeriesIterator` and `MemoizedSeriesIterator` implement
`chunkenc.Iterator` like many other iterators, too.

Signed-off-by: beorn7 <beorn@grafana.com>
2021-11-29 11:16:40 +01:00
Björn Rabenstein 7e42acd3b1
tsdb: Rework iterators (#9877)
- Pick At... method via return value of Next/Seek.
- Do not clobber returned buckets.
- Add partial FloatHistogram suppert.

Note that the promql package is now _only_ dealing with
FloatHistograms, following the idea that PromQL only knows float
values.

As a byproduct, I have removed the histogramSeries metric. In my
understanding, series can have both float and histogram samples, so
that metric doesn't make sense anymore.

As another byproduct, I have converged the sampleBuf and the
histogramSampleBuf in memSeries into one. The sample type stored in
the sampleBuf has been extended to also contain histograms even before
this commit.

Signed-off-by: beorn7 <beorn@grafana.com>
2021-11-29 13:24:23 +05:30
beorn7 73858d7f82 storage: histogram support in memoized_iterator
Signed-off-by: beorn7 <beorn@grafana.com>
2021-11-15 21:55:58 +01:00
beorn7 9b30ca2598 promql: Support histogram in value string representation
Signed-off-by: beorn7 <beorn@grafana.com>
2021-11-15 20:36:44 +01:00
Marco Pracucci 6f050f66c7
Update storage/memoized_iterator.go
Signed-off-by: Marco Pracucci <marco@pracucci.com>

Co-authored-by: Julien Pivotto <roidelapluie@gmail.com>
2021-03-15 09:27:20 +01:00
Marco Pracucci b92c03023d
Optimized vector selector
Signed-off-by: Marco Pracucci <marco@pracucci.com>
2021-03-11 14:32:56 +01:00