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73 commits

Author SHA1 Message Date
Goutham Veeramachaneni 178f840295 Fix panic caused by 0 division 
Introduced in #108

Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-08-18 07:45:29 +02:00
Fabian Reinartz 905af27cf9 Refactor compactor 2017-08-09 11:10:29 +02:00
Fabian Reinartz 66ff7b12e9 Pool Chunk objects during compaction 2017-08-08 17:35:34 +02:00
Fabian Reinartz 2644c8665c Don't allocate ChunkMetas, reuse postings slices 2017-08-06 20:41:24 +02:00
Fabian Reinartz 96d7f540d4 Persist series without allocating the full set 
Change index persistence for series to not be accumulated in memory
before being written as one large batch. `Labels` and `ChunkMeta`
objects are reused.
This cuts down memory spikes during compaction of multiple blocks
significantly.

As part of the the Index{Reader,Writer} now have an explicit notion of
symbols and series must be inserted in order.
 2017-08-06 12:06:41 +02:00
Fabian Reinartz 3951d8cc29 Fix selection of compactable blocks 2017-08-04 12:02:34 +02:00
Fabian Reinartz 5d7b5994d6 Fix compaction range selection 2017-07-13 16:13:59 +02:00
Goutham Veeramachaneni 401bdfd4a6 Make Chunks return the number of samples inside 
Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-07-12 18:45:12 +02:00
Goutham Veeramachaneni 1263a68875 Recompact blocks with large number of tombstones 
Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-07-12 18:27:31 +02:00
Goutham Veeramachaneni 9a2ab732b5 Choose ranges by retention and min-block-duration 
Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-07-12 17:30:34 +02:00
Goutham Veeramachaneni ce23adb579 Initial compaction implementation for block-ranges 
Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-07-07 16:32:18 +02:00
Fabian Reinartz 03f95ee096 Fix directory file descriptor leak. 2017-06-12 00:05:04 +02:00
Fabian Reinartz 05e411a8eb Improve heuristic to spread chunks across block 2017-06-08 11:30:32 +02:00
Fabian Reinartz f006e2d1ab Merge pull request #92 from prometheus/sources 
Add list of source head blocks to meta.json
 2017-06-07 11:50:44 +02:00
Fabian Reinartz 683b4c8c2a Add list of source head blocks to meta.json 2017-06-07 11:06:45 +02:00
Goutham Veeramachaneni a1c8425357
Initial implementation of HeadBlock Snapshots 
Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-06-05 13:48:31 +05:30
Goutham Veeramachaneni 3a5ae6b1a4 Merge pull request #82 from Gouthamve/deletes-1 
Implement deletions
 2017-05-27 22:06:45 +05:30
Goutham Veeramachaneni 44e9ae38b5
Incorporate PR feedback. 
* Expose Stone as it is used in an exported method.
* Move from tombstoneReader to []Stone for the same reason as above.
* Make WAL reading a little cleaner.

Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-05-26 21:26:31 +05:30
Fabian Reinartz b3b9245ad6 Add and fix metrics 2017-05-26 15:13:03 +02:00
Goutham Veeramachaneni 6febabeb28
Final delete fixes. 
* Make sure no reads happen on the block when delete is in progress.
* Fix bugs in compaction.

Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-05-26 16:31:45 +05:30
Goutham Veeramachaneni f29fb62fba
Make TombstoneReader a Getter. 
Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-05-24 11:24:24 +05:30
Goutham Veeramachaneni 244b73fce1
Rename for clarity and consistency. 
Misc. changes for code cleanliness.

Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-05-22 16:42:36 +05:30
Goutham Veeramachaneni 8434019ad9
Merge branch 'master' into deletes-1 
Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-05-22 12:58:38 +05:30
Goutham Veeramachaneni 0b70333ef6
Add tests for tombstones. 
Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-05-21 23:20:05 +05:30
Goutham Veeramachaneni 3dbb400bef
Initial implementation of Delete on DB. 
Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-05-20 00:35:50 +05:30
Fabian Reinartz 7e6961b4ac Fix import and var name 2017-05-18 17:30:52 +02:00
Fabian Reinartz d2673d8659 Completely drop empty blocks 2017-05-18 16:12:17 +02:00
Fabian Reinartz 39df7e2bba Switch blocks to ULID directories, drop sequenc numbers 2017-05-18 16:09:30 +02:00
Goutham Veeramachaneni 22c1b5b492
Make SeriesSets use tombstones. 
Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-05-17 14:49:42 +05:30
Goutham Veeramachaneni 5579efbd5b
Initial implentation of Deletes on persistedBlock 
Very much a WIP

Signed-off-by: Goutham Veeramachaneni <cs14btech11014@iith.ac.in>
 2017-05-14 14:36:26 +05:30
Fabian Reinartz 778103b450 Add liecence file and headers 2017-04-10 20:59:45 +02:00
Fabian Reinartz 10c7c9acbe Adjust import names to new repository organisation 2017-04-04 11:27:26 +02:00
Fabian Reinartz 789e8224ff Fix wrong comparison in head block resorting 2017-03-21 12:12:33 +01:00
Fabian Reinartz 9c93f8f2aa Fix various races 
This fixes different race condition encoutnered when running Prometheus.
It reduces the overall performance in the synthetic benchmark a fair bit
but has no indiciations of impacting a real-world setup notably.
 2017-03-20 14:45:27 +01:00
Fabian Reinartz 3635569257 Trigger reload correctly on interrupted compaction 2017-03-20 10:41:43 +01:00
Fabian Reinartz a8e8903350 Use ChunkMeta references for clarity 
This has been a common source of hard to debug issues. Its a premature
and unbenchmarked optimization and semantically, we want ChunkMetas to
be references in all changed cases.
 2017-03-14 15:40:16 +01:00
Fabian Reinartz 04783831e2 Correctly close compacted blocks. 2017-03-06 09:33:55 +01:00
Fabian Reinartz 21b97d1e04 Fix compaction selection procedure 2017-03-02 15:10:13 +01:00
Fabian Reinartz 327e07e8d0 Properly sync moves and removes in compactor 2017-03-02 14:35:06 +01:00
Fabian Reinartz 92120448c2 Properly cleanup compacted dirs, fixes, docs 2017-03-02 14:32:09 +01:00
Fabian Reinartz 2c3e778d90 Compactor interface 2017-03-02 09:17:30 +01:00
Fabian Reinartz 2c3b56350a Write meta.json file atomically 2017-03-01 17:19:57 +01:00
Fabian Reinartz db5c88ea9a Misc compaction fixes 2017-02-28 08:40:51 +01:00
Fabian Reinartz 306831f151 Add per-block state ULID 2017-02-27 10:46:15 +01:00
Fabian Reinartz 9a5dfadb09 Tweak IndexWriter interface, serialize directly into dir 2017-02-25 07:24:20 +01:00
Fabian Reinartz 78780cd2ba Segment chunk file 
This adds write path support for segmented chunk data files.
Files of 512MB are pre-allocated and written to. If the file size
is exceeded, the next file is started. On completion, files
are truncated to their final size.
 2017-02-23 10:50:22 +01:00
Fabian Reinartz a3b47c4929 Create default logger for DB 2017-02-19 16:04:37 +01:00
Fabian Reinartz f734773214 Replace per-file locking with single PID lock file 
File locks have a multitude of problems that make them hard to use
correctly. As they are just advisory, they are only meaningful to
prevent accidents like running the same process twice.
A simple PID file lock works reliably in those cases and is simpler.
 2017-02-19 13:01:19 +01:00
Fabian Reinartz c808928b90 SeriesWriter -> ChunkWriter 
This commit simplifies a SeriesWriter into a ChunkWriter and detaches
it entirely from the notion of a series and the series index.
 2017-02-19 11:27:31 +01:00
Fabian Reinartz a61a31a5d7 compaction: add fast-path for compacting mem blocks 2017-01-30 09:49:36 +01:00