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52 commits

Author SHA1 Message Date
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
Fabian Reinartz c20cc44b06 Add docs, write sequence number to meta.json 2017-01-29 08:11:47 +01:00
Fabian Reinartz 30d8866c13 Limit compaction range, make cut and compact concurrent 2017-01-20 07:58:19 +01:00
Fabian Reinartz 67d185ceb9 Compact based on compaction generation 2017-01-19 19:45:52 +01:00
Fabian Reinartz d4779b374c Properly track and write meta file 2017-01-19 14:01:38 +01:00
Fabian Reinartz 9ddbd64d00 Move stats into meta.json file, cleanup, docs 2017-01-19 11:22:47 +01:00
Fabian Reinartz e006bc6dc6 Improve error messages, create regular dir for block 2017-01-19 08:40:15 +01:00
Fabian Reinartz d2322f6095 Improve compaction processing 2017-01-18 06:18:32 +01:00
Fabian Reinartz c32a94d409 Unexport HeadBlock, export Block interface 2017-01-10 15:41:57 +01:00
Fabian Reinartz 142c89b8b0 Fix/update metrics 2017-01-09 19:14:21 +01:00
Fabian Reinartz 1943f8d1bb Fix head block stats races 2017-01-07 18:02:17 +01:00
Fabian Reinartz c61b310210 Naive size-based compaction 
This adds naive compaction that tries to compact three
blocks of roughly equal size.
It decides based on samples present in a block and has no
safety measures considering the actual file size.
 2017-01-06 13:53:05 +01:00
Fabian Reinartz 96c2bd249f Handle compaction trigger and reinitializing in DB 2017-01-06 13:03:23 +01:00
Fabian Reinartz 3ed2c2a14b Rename Partition to regular DB, DB to PartitionedDB 2017-01-06 11:40:09 +01:00
Fabian Reinartz 4590b61343 Rename shard to partition 2017-01-06 08:08:02 +01:00
Fabian Reinartz 9790aa98ac Add postings wrapper that emits head postings in label set order 
This adds a position mapper that takes series from a head block
in the order they were appended and creates a mapping representing
them in order of their label sets.

Write-repair of the postings list would cause very expensive writing.
Hence, we keep them as they are and only apply the postition mapping
at the very end, after a postings list has been sufficienctly reduced
through intersections etc.
 2017-01-05 16:05:42 +01:00
Fabian Reinartz 5aa7f7cce8 Compact head block into persisted block 2017-01-04 21:11:15 +01:00
Fabian Reinartz ac49f8c15e Consolidate persistence and compaction 2017-01-03 16:49:37 +01:00
Fabian Reinartz e7f04d14d5 Lock mmapped files 2017-01-03 10:09:20 +01:00
Fabian Reinartz a648ef5252 Convert persister into function 2017-01-02 16:58:47 +01:00
Fabian Reinartz dbd2b21d2e Make persistence atomic 2017-01-02 14:41:13 +01:00
Fabian Reinartz 62b8ded0a5 Rename iterator value getters to At() 2017-01-02 13:33:06 +01:00