This is the promised cleanup. This structure gets rid of a lot of
intermediate structures and encodes through associated types how the
object stores and path types are related.
The enums are still necessary to avoid having generics leak all over
the place, but the object store variants and path variants should always
match because they'll always come from the object store trait
implementations that use the associated types.
* chore: Update arrow + tokio deps
* chore: Use bleeding edge azure
* chore: Update aws + other deps
* fix: fmt
* fix: Switch to in-house version of routerify
* fix: Upgrade to hyper 0.14
The hyper::error module is now private; hyper::Error is the public
re-export
* fix: Upgrade cloud storage to get tokio upgrade
* fix: Upgrade open_telemetry
* fix: Do not call `panic::set_hook` during another panic
Doing so leads to a double panic which aborts the process.
* fix: new h2 error who dis
Co-authored-by: Carol (Nichols || Goulding) <carol.nichols@integer32.com>
Co-authored-by: Jake Goulding <jake.goulding@integer32.com>
* feat: Chunk Migration APIs and query data in the read buffer via SQL
* fix: Make code more consistent
* fix: fmt / clippy
* chore: Apply suggestions from code review
Co-authored-by: Carol (Nichols || Goulding) <193874+carols10cents@users.noreply.github.com>
* refactor: Remove unecessary Result and make chunks() infallable
* chore: Apply more suggestions from code review
Co-authored-by: Edd Robinson <me@edd.io>
Co-authored-by: Carol (Nichols || Goulding) <193874+carols10cents@users.noreply.github.com>
Co-authored-by: Carol (Nichols || Goulding) <193874+carols10cents@users.noreply.github.com>
Co-authored-by: Edd Robinson <me@edd.io>
* refactor: consolidate line protocol schema creation into data_types, and port code to use it
refactor: Port mutable buffer to use SchemaBuilder
* fix: doctest
* refactor: remove unecessary clippyisms
* docs: Improve comments via suggestions from code review
Co-authored-by: Edd Robinson <me@edd.io>
* refactor: use more idomatic try_ naming and TryInto trait
* docs: Change from line protocol data model to InfluxDB data model
* refactor: rename LP --> Influx in code
* feat: add support for UInteger type
Co-authored-by: Edd Robinson <me@edd.io>
Adds serialization with compression and checksum for WAL buffer segments.
This required a weird structure where the flatbuffer bytes of ReplicatedWrite were kept as a raw payload. I did this because otherwise each of the replicated writes would have been rebuilt in the segment.
The other thing that isn't ideal is that deserializing a segment actually marshals it into a Rust struct as opposed to keeping the entire thing as raw flatbuffers. We could update this later to have a concept of an open segment (regular rust stuct) and closed segments that are just the flatbuffers.
Refactors the API method errors.
The user of the API client needs to be able to distinguish between various error
states when an API request fails. The most ergonomic way of exposing this
information is by returning an error enum that is specific to each API method
(or at least the important ones with well defined failure modes) - currently
only the `create_database()` method has significant error states, so this is
the only one with a specific error type in this impl.
This change defines a bunch of API error codes in the API client, adds them to
the IOx API error response body, and maps them in the API client. Due to error
wrapping the error code mapping in the IOx server is less exhaustive than I had
hoped however.
* feat: implement chunk listing and snapshotting in mutable buffer
* fix: update to use latest version of string interner and remove custom clone
* docs: fix comment
Initialises a new library crate and implements a basic IOx API client.
The API client supports:
- ping
- create database
Care has been taken to abstract away the underlying HTTP client used
(reqwest) and avoid leaking it into the public API (error types is a
common leak!) This makes updating the HTTP client and/or swapping it for
something else a backwards compatible change for end users of the crate.
Outstanding items:
- move shared API types into a sensible location
- discriminate between various IOx error responses
The former doesn't need doing until we publish the crate and will likely
be rather invasive / conlict prone so aiming to merge this PR and then
move things around in a follow-up.
The latter would allow us to expose error conditions to the user such
that they can take actions to remidy the situation / know if the request
can or should be retried / etc. Currently we expose a string error
message when requests fail, requiring string matching and/or passing the
string higher in the stack (and thus punting the problem to the caller).
It would be very nice to have typed errors, but a detail I have left for
later.
Replaces the hand-rolled config system with a StructOpt managed config struct.
I've got most of it ported across, but the interaction between all the logging
config bits is complex! I've left what is there and hooked in the value from
the config struct (which directly replaces the env var in usage, as it also
sources from the env).
Closes#528
This patch adds support for Microsfot Azure Blob storage. The
implementations requires an account, a key and container name. They can
be configured via the environment variables `AZURE_STORAGE_ACCOUNT`,
`AZURE_STORAGE_MASTER_KEY` and `AZURE_STORAGE_CONTAINER`.
This adds a new function list_with_delimiter to the object store. This commit contains just the implementation for S3, leaving the others to be completed in follow on commits.
This has a fixed delimiter to ensure a directory structure is created. This delimiter should be dependent on platform and which object store is used. For any of the cloud object stores or in memory, the delimiter should be /. For the future disk based implementation it should be dependendent on if you're running on Windows or Linux.
I didn't use Stream for the return type because I found it difficult to work with and I don't think it actually added anything useful. The return ListResult struct has the next token and I prefer that the caller explicitly makes calls that go over the network so they're more aware of what's going on, where a Stream abstracts that away so it's hidden behind the scenes. We can easilsy add a Stream based version on top of this existing API if we want.
* feat: Create configuration system, port IOx to use it
* docs: Apply suggestions from code review
Co-authored-by: Paul Dix <paul@influxdata.com>
* fix: fix test for setting values
Co-authored-by: Paul Dix <paul@influxdata.com>
This adds benchmarks to the data_types crate for ReplicatedWrite. This is the first in a series to test benchmarking Flatbuffers vs. JSON for the WAL Segment format.
* refactor: Update docs, remove unused field
* refactor: rename partition -> chunk
* feat: Introduce new partition, which is a holder for Chunks
* refactor: Remove use of wal from mutable database
* refactor: cleanups, remove last direct use of chunks
* fix: delete old benchmarks
* fix: clippy sacrifice
* docs: tidy up comments
* refactor: remove unused error types
* chore: remove commented out tests
This moves the HTTP API over to Routerify, which has the basic route parsing logic that will enable the API design for IOx.
I had a little trouble with the error handling in Routerify so I ended up creating a macro for constructing error responses in the HTTP API. I'm not sure what I think of this pattern so I'm interested in what others think. Another option would be to have two functions for each API endpoint. One which is x_handler with a Routerify function signature. Then another which is just x that has the Result<Response<Body>, ApplicationError> return type, which would make using the ? operator work in those functions. That would eliminate the need for the return_err macro.
I'm happy to refactor to that if people prefer it.
This commit swaps out the std library `HashMap` for the implementation
provided by the `hashbrown` crate. Not only does this allow us to use
the raw entry API, but it increases performance through the use of a
faster non-crytographically safe hashing function. We do not need an
expensive hash function for this code path.
Benchmark improvements are roughly 20-40%.
Benchmarking segment_read_group_all_time_vary_cardinality/cardinality_20_columns_2_rows_500000
Benchmarking segment_read_group_all_time_vary_cardinality/cardinality_20_columns_2_rows_500000: Warming up for 3.0000 s
Benchmarking segment_read_group_all_time_vary_cardinality/cardinality_20_columns_2_rows_500000: Collecting 100 samples in estimated 6.5961 s (400 iterations)
Benchmarking segment_read_group_all_time_vary_cardinality/cardinality_20_columns_2_rows_500000: Analyzing
segment_read_group_all_time_vary_cardinality/cardinality_20_columns_2_rows_500000
time: [16.502 ms 16.527 ms 16.558 ms]
thrpt: [1.2079 Kelem/s 1.2101 Kelem/s 1.2120 Kelem/s]
change:
time: [-40.808% -40.616% -40.428%] (p = 0.00 < 0.05)
thrpt: [+67.863% +68.394% +68.942%]
Performance has improved.
Found 8 outliers among 100 measurements (8.00%)
4 (4.00%) high mild
4 (4.00%) high severe
Benchmarking segment_read_group_all_time_vary_cardinality/cardinality_200_columns_2_rows_500000
Benchmarking segment_read_group_all_time_vary_cardinality/cardinality_200_columns_2_rows_500000: Warming up for 3.0000 s
Benchmarking segment_read_group_all_time_vary_cardinality/cardinality_200_columns_2_rows_500000: Collecting 100 samples in estimated 5.0698 s (300 iterations)
Benchmarking segment_read_group_all_time_vary_cardinality/cardinality_200_columns_2_rows_500000: Analyzing
segment_read_group_all_time_vary_cardinality/cardinality_200_columns_2_rows_500000
time: [16.531 ms 16.542 ms 16.555 ms]
thrpt: [12.081 Kelem/s 12.090 Kelem/s 12.099 Kelem/s]
change:
time: [-43.304% -43.047% -42.810%] (p = 0.00 < 0.05)
thrpt: [+74.856% +75.582% +76.378%]
Performance has improved.
Found 8 outliers among 100 measurements (8.00%)
5 (5.00%) high mild
3 (3.00%) high severe
Benchmarking segment_read_group_all_time_vary_cardinality/cardinality_2000_columns_2_rows_500000
Benchmarking segment_read_group_all_time_vary_cardinality/cardinality_2000_columns_2_rows_500000: Warming up for 3.0000 s
Benchmarking segment_read_group_all_time_vary_cardinality/cardinality_2000_columns_2_rows_500000: Collecting 100 samples in estimated 5.2590 s (300 iterations)
Benchmarking segment_read_group_all_time_vary_cardinality/cardinality_2000_columns_2_rows_500000: Analyzing
segment_read_group_all_time_vary_cardinality/cardinality_2000_columns_2_rows_500000
time: [17.497 ms 17.568 ms 17.648 ms]
thrpt: [113.33 Kelem/s 113.84 Kelem/s 114.30 Kelem/s]
change:
time: [-38.468% -38.188% -37.880%] (p = 0.00 < 0.05)
thrpt: [+60.978% +61.782% +62.518%]
Performance has improved.
Found 12 outliers among 100 measurements (12.00%)
12 (12.00%) high severe
Benchmarking segment_read_group_all_time_vary_cardinality/cardinality_20000_columns_3_rows_500000
Benchmarking segment_read_group_all_time_vary_cardinality/cardinality_20000_columns_3_rows_500000: Warming up for 3.0000 s
Benchmarking segment_read_group_all_time_vary_cardinality/cardinality_20000_columns_3_rows_500000: Collecting 100 samples in estimated 7.0471 s (300 iterations)
Benchmarking segment_read_group_all_time_vary_cardinality/cardinality_20000_columns_3_rows_500000: Analyzing
segment_read_group_all_time_vary_cardinality/cardinality_20000_columns_3_rows_500000
time: [23.305 ms 23.320 ms 23.336 ms]
thrpt: [857.05 Kelem/s 857.64 Kelem/s 858.20 Kelem/s]
change:
time: [-35.933% -35.778% -35.648%] (p = 0.00 < 0.05)
thrpt: [+55.396% +55.711% +56.087%]
Performance has improved.
Found 3 outliers among 100 measurements (3.00%)
3 (3.00%) high mild
Benchmarking segment_read_group_all_time_vary_columns/cardinality_20000_columns_2_rows_500000
Benchmarking segment_read_group_all_time_vary_columns/cardinality_20000_columns_2_rows_500000: Warming up for 3.0000 s
Benchmarking segment_read_group_all_time_vary_columns/cardinality_20000_columns_2_rows_500000: Collecting 100 samples in estimated 6.8058 s (300 iterations)
Benchmarking segment_read_group_all_time_vary_columns/cardinality_20000_columns_2_rows_500000: Analyzing
segment_read_group_all_time_vary_columns/cardinality_20000_columns_2_rows_500000
time: [22.475 ms 22.540 ms 22.622 ms]
thrpt: [884.10 Kelem/s 887.31 Kelem/s 889.87 Kelem/s]
change:
time: [-34.249% -34.051% -33.768%] (p = 0.00 < 0.05)
thrpt: [+50.984% +51.633% +52.089%]
Performance has improved.
Found 11 outliers among 100 measurements (11.00%)
2 (2.00%) high mild
9 (9.00%) high severe
Benchmarking segment_read_group_all_time_vary_columns/cardinality_20000_columns_3_rows_500000
Benchmarking segment_read_group_all_time_vary_columns/cardinality_20000_columns_3_rows_500000: Warming up for 3.0000 s
Benchmarking segment_read_group_all_time_vary_columns/cardinality_20000_columns_3_rows_500000: Collecting 100 samples in estimated 7.0631 s (300 iterations)
Benchmarking segment_read_group_all_time_vary_columns/cardinality_20000_columns_3_rows_500000: Analyzing
segment_read_group_all_time_vary_columns/cardinality_20000_columns_3_rows_500000
time: [23.683 ms 23.724 ms 23.779 ms]
thrpt: [841.08 Kelem/s 843.02 Kelem/s 844.49 Kelem/s]
change:
time: [-34.575% -34.419% -34.241%] (p = 0.00 < 0.05)
thrpt: [+52.070% +52.482% +52.847%]
Performance has improved.
Found 9 outliers among 100 measurements (9.00%)
6 (6.00%) high mild
3 (3.00%) high severe
Benchmarking segment_read_group_all_time_vary_columns/cardinality_20000_columns_4_rows_500000
Benchmarking segment_read_group_all_time_vary_columns/cardinality_20000_columns_4_rows_500000: Warming up for 3.0000 s
Benchmarking segment_read_group_all_time_vary_columns/cardinality_20000_columns_4_rows_500000: Collecting 100 samples in estimated 5.1007 s (200 iterations)
Benchmarking segment_read_group_all_time_vary_columns/cardinality_20000_columns_4_rows_500000: Analyzing
segment_read_group_all_time_vary_columns/cardinality_20000_columns_4_rows_500000
time: [25.379 ms 25.456 ms 25.545 ms]
thrpt: [782.93 Kelem/s 785.67 Kelem/s 788.06 Kelem/s]
change:
time: [-37.254% -36.988% -36.701%] (p = 0.00 < 0.05)
thrpt: [+57.981% +58.699% +59.373%]
Performance has improved.
Found 10 outliers among 100 measurements (10.00%)
2 (2.00%) high mild
8 (8.00%) high severe
Benchmarking segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_250000
Benchmarking segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_250000: Warming up for 3.0000 s
Benchmarking segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_250000: Collecting 100 samples in estimated 5.7756 s (400 iterations)
Benchmarking segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_250000: Analyzing
segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_250000
time: [14.404 ms 14.411 ms 14.419 ms]
thrpt: [1.3870 Melem/s 1.3878 Melem/s 1.3885 Melem/s]
change:
time: [-28.007% -27.893% -27.798%] (p = 0.00 < 0.05)
thrpt: [+38.500% +38.683% +38.903%]
Performance has improved.
Found 7 outliers among 100 measurements (7.00%)
3 (3.00%) high mild
4 (4.00%) high severe
Benchmarking segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_500000
Benchmarking segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_500000: Warming up for 3.0000 s
Benchmarking segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_500000: Collecting 100 samples in estimated 6.9256 s (300 iterations)
Benchmarking segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_500000: Analyzing
segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_500000
time: [23.191 ms 23.299 ms 23.419 ms]
thrpt: [854.02 Kelem/s 858.42 Kelem/s 862.40 Kelem/s]
change:
time: [-32.647% -32.302% -31.912%] (p = 0.00 < 0.05)
thrpt: [+46.868% +47.715% +48.471%]
Performance has improved.
Found 11 outliers among 100 measurements (11.00%)
11 (11.00%) high severe
Benchmarking segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_750000
Benchmarking segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_750000: Warming up for 3.0000 s
Benchmarking segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_750000: Collecting 100 samples in estimated 6.1544 s (200 iterations)
Benchmarking segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_750000: Analyzing
segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_750000
time: [30.813 ms 30.859 ms 30.916 ms]
thrpt: [646.92 Kelem/s 648.10 Kelem/s 649.07 Kelem/s]
change:
time: [-37.155% -36.779% -36.436%] (p = 0.00 < 0.05)
thrpt: [+57.322% +58.174% +59.121%]
Performance has improved.
Found 12 outliers among 100 measurements (12.00%)
5 (5.00%) high mild
7 (7.00%) high severe
Benchmarking segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_1000000
Benchmarking segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_1000000: Warming up for 3.0000 s
Benchmarking segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_1000000: Collecting 100 samples in estimated 7.8548 s (200 iterations)
Benchmarking segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_1000000: Analyzing
segment_read_group_all_time_vary_rows/cardinality_20000_columns_2_rows_1000000
time: [39.303 ms 39.349 ms 39.405 ms]
thrpt: [507.55 Kelem/s 508.27 Kelem/s 508.86 Kelem/s]
change:
time: [-36.857% -36.699% -36.576%] (p = 0.00 < 0.05)
thrpt: [+57.669% +57.975% +58.371%]
Performance has improved.
Found 14 outliers among 100 measurements (14.00%)
8 (8.00%) high mild
6 (6.00%) high severe
This commit provides functionality on top of the `GroupKey` type (a
vector of materialised values), which allows them to be comparable by
implementing `Ord`.
Then, using the `permutation` crate, it is possible sort all rows in a
result set based on the group keys, which will be useful for testing.
Adds telemetry / tracing with support for a Jaeger backend, and changes the
logger from env_logger to a tracing subscriber to collect the log entries.
Events are batched and then emitted asynchronosuly via UDP to the Jaeger
collector using the tokio runtime. There's a bunch of settings (env
vars) related to batch sizes and flush frequency etc - they're all using
their default values at the moment (if it ain't broke...) See the docs
for more info:
https://github.com/open-telemetry/opentelemetry-specification/blob/master/specification/sdk-environment-variables.md#opentelemetry-environment-variable-specification
This is only part 1 of telemetry - it does NOT propagate traces across RPC
boundaries as we're still defining how all this should work. I've created #541
to track this.
Closes#202 and closes#203.
This commit adds benchmarks to track the performance of `read_group`
when aggregating across columns that support pre-computed bit-sets of
row_ids for each distinct column value. Currently this is limited to the
RLE columns, and only makes sense when grouping by low-cardinality
columns.
The benchmarks are in three groups:
* one group fixes the number of rows in the segment but varies the
cardinality (that is, how many groups the query produces).
* another groups fixes the cardinality and the number of rows but varies
the number of columns needed to be grouped to produce the fixed
cardinality.
* a final group fixes the number of columns being grouped, the
cardinality, and instead varies the number of rows in the segment.
Some initial results from my development box are as follows:
```
time: [51.099 ms 51.119 ms 51.140 ms]
thrpt: [39.108 Kelem/s 39.125 Kelem/s 39.140
Kelem/s]
Found 5 outliers among 100 measurements (5.00%)
3 (3.00%) high mild
2 (2.00%) high severe
segment_read_group_pre_computed_groups_no_predicates_group_cols/1
time: [93.162 us 93.219 us 93.280 us]
thrpt: [10.720 Kelem/s 10.727 Kelem/s 10.734
Kelem/s]
Found 4 outliers among 100 measurements (4.00%)
2 (2.00%) high mild
2 (2.00%) high severe
segment_read_group_pre_computed_groups_no_predicates_group_cols/2
time: [571.72 us 572.31 us 572.98 us]
thrpt: [3.4905 Kelem/s 3.4946 Kelem/s 3.4982
Kelem/s]
Found 12 outliers among 100 measurements (12.00%)
5 (5.00%) high mild
7 (7.00%) high severe
Benchmarking
segment_read_group_pre_computed_groups_no_predicates_group_cols/3:
Warming up for 3.0000 s
Warning: Unable to complete 100 samples in 5.0s. You may wish to
increase target time to 8.9s, enable flat sampling, or reduce sample
count to 50.
segment_read_group_pre_computed_groups_no_predicates_group_cols/3
time: [1.7292 ms 1.7313 ms 1.7340 ms]
thrpt: [1.7301 Kelem/s 1.7328 Kelem/s 1.7349
Kelem/s]
Found 8 outliers among 100 measurements (8.00%)
1 (1.00%) low mild
6 (6.00%) high mild
1 (1.00%) high severe
segment_read_group_pre_computed_groups_no_predicates_rows/250000
time: [562.29 us 565.19 us 568.80 us]
thrpt: [439.52 Melem/s 442.33 Melem/s 444.61
Melem/s]
Found 18 outliers among 100 measurements (18.00%)
6 (6.00%) high mild
12 (12.00%) high severe
segment_read_group_pre_computed_groups_no_predicates_rows/500000
time: [561.32 us 561.85 us 562.47 us]
thrpt: [888.93 Melem/s 889.92 Melem/s 890.76
Melem/s]
Found 11 outliers among 100 measurements (11.00%)
5 (5.00%) high mild
6 (6.00%) high severe
segment_read_group_pre_computed_groups_no_predicates_rows/750000
time: [573.75 us 574.27 us 574.85 us]
thrpt: [1.3047 Gelem/s 1.3060 Gelem/s 1.3072
Gelem/s]
Found 13 outliers among 100 measurements (13.00%)
5 (5.00%) high mild
8 (8.00%) high severe
segment_read_group_pre_computed_groups_no_predicates_rows/1000000
time: [586.36 us 586.74 us 587.19 us]
thrpt: [1.7030 Gelem/s 1.7043 Gelem/s 1.7054
Gelem/s]
Found 9 outliers among 100 measurements (9.00%)
4 (4.00%) high mild
5 (5.00%) high severe
```
* feat: Implement write buffer to Parquet snapshotting
This introduces snapshot to the server packages to manage snapshotting. It also introduces a new trait for representing a Partition. There is a very crude API wired up in http_routes for testing purposes. Follow on work will bring the server package into http_routes and rework the snapshot API.
* chore(server): add logs for dropped WAL segments
Added logging for dropped writes and old segments in rollover scenarios
Also including a dep on tracing and dev-dep on test_helpers
Refs: #466
* chore(server): Add more context to logs
Minor cleanup around remove_oldest_segment usage
Suggestions from @alamb's review
This splits the cluster package out into server and buffer modules. The WAL buffer is in-memory and split into segments. Follow on commits will implement it in the server and add persistence to object storage.
* feat: Port enough of Window and Duration to implement window_bounds
* fix: clippy
* fix: Add a few more source links
* fix: Eust --> Rust in comments :(
* fix: add comments about remainder, and add test demonstraitng behavior
* fix: Apply suggestions from code review
This adds basic API calls for persisting and loading the server configuratioon of database rules and host groups to and from object storage. It stores all the data in a single JSON file.
This commit refactors the flatbuffers data types from the wal to a new crate where they can be used by storage, write buffer, and cluster. It also refactors cluster to move the configuration types out to the data types crate so they can be used across storage and elsewhere.
Finally, it adds a new method to store replicated writes on a database in the database trait and implements it.
This commit implements partition templates as a struct that can be serialized and deserialzed. It is comprised of parts that can include the table name, a column name and its value, a formatted time, or a string column and regex captures of its value.
This updates cluster so that the concept of replication and subscriptions for handling queries are separated. It also adds flatbuffer structure that can be used as a common format for replication.
* feat: write_database support for predicates
* fix: temporarily pull in arrow fork to pick up fix for ARROW-10136
* fix: Update mutex usage based on PR feedback
* fix: more mutex polish and use OptionExt
* fix: update comments
* fix: rust-fu the table lookup
* fix: update docs
* fix: more idomatic rust types
* fix: better usage of reference types
* test: traits for database and tests for http handler
* refactor: Use generics and trait bounds instead of trait objects
* refactor: Replace trait objects with an associated type
* refactor: Extract an associated Error type on the Database traits
* refactor: Remove some explicit conversions to_string that Snafu takes care of
* docs: add comments
* refactor: move traits into storage module
Co-authored-by: Carol (Nichols || Goulding) <carol.nichols@integer32.com>
This is the initial prototype of the WriteBuffer and WAL. This does the following:
* accepts a slice of ParsedLine into the DB
* writes those into an in memory structure with tags represented as u32 dictionaries and all field types supported
* persists those writes into the WAL as Flatbuffer blobs (one WAL entry per slice of lines written, or WriteBatch)
* has a method to return a table from the buffer as an Arrow RecordBatch
* recovers the WAL after the database is closed and opened back up again
* has a single test that covers the end-to-end from the DB side
* It doesn't include partitioning yet. Although the write_lines method does actually try to do partitions on time. That'll get changed to be something more general defined by a per database configuration.
* hooked up to the v2 HTTP write API
* hooked up to a read API which will execute a SQL query against the data in the buffer
This includes a refactor of the WAL:
Refactors the WAL to remove async and threading so that it can be moved higher up. This simplifies the API while keeping just about the same amount of code in ParitionStore to handle the asynchronous writes.
This also modifies the WAL to remove the SideFile implementation, which was causing significant performance problems and write amplification. The downside is that WAL writes are no longer guarranteed atomic.
Further, this modifies the WAL to keep the active segement file handle open. Appends now don't have to list the directory contents and look for the latest file and open the file handle to do appends, which should also improve performance and reduce iops.
The `/api/v2/create_bucket` API was delorean-specific for testing
purposes. This change makes it match the [Influx 2.0 API][influx] and
adds a method to the client for creating buckets.
The client will always send an empty array of `retentionRules` because
that is a required parameter for the Influx API. Delorean always ignores
`retentionRules`. The `description` and `rp` parameters are optional and
are never sent.
[influx]: https://v2.docs.influxdata.com/v2.0/api/#operation/PostBuckets
I believe the gRPC create bucket is also delorean-specific and perhaps
not needed, but I'm leaving it in for now with a note.
Jake dug into why the end-to-end tests fail with delorean running in the
Docker image I built, and it appears to be a crash with an illegal
instruction from CRoaring.
We think it's this issue: https://github.com/saulius/croaring-rs/pull/62
which was merged and released, so let's try updating CRoaring.
* refactor: move all dstool code into delorean binary
* fix: Move code/mods to make it compile and run
* fix: warn if db dir does not exist
* refactor: Match argument subcommands w/ more idomatic rust
* fix: Apply suggestions from code review
Co-authored-by: Carol (Nichols || Goulding) <193874+carols10cents@users.noreply.github.com>
fix: restore hyper logging
fix: Apply suggestions from code review
Co-authored-by: Carol (Nichols || Goulding) <193874+carols10cents@users.noreply.github.com>
* fix: update expected code
Co-authored-by: Carol (Nichols || Goulding) <193874+carols10cents@users.noreply.github.com>
* feat: Add parquet writer, hook up conversion in dstool
* fix: use bigger executor for test
* fix: less cloning
* fix: make unsupported messages less pejorative
* fix: fmt
* fix: Rename writer and do not require std::File, add example
* fix: clippy and fmt
* fix: remove unnecessary module in end to end tests
* fix: remove strange use of tempfile
* fix: Apply suggestions from code review
Co-authored-by: Carol (Nichols || Goulding) <193874+carols10cents@users.noreply.github.com>
* fix: Apply suggestions from code review
Co-authored-by: Carol (Nichols || Goulding) <193874+carols10cents@users.noreply.github.com>
* fix: cleanup use
* fix: Use more specific error messages
* fix: comment tweak
* fix: touchup temp path creation
* fix: clippy!
Co-authored-by: Carol (Nichols || Goulding) <193874+carols10cents@users.noreply.github.com>
* refactor: rename the module containing generated types
The nested `delorean` was confusing anyway, and this will make more
sense when we extract a new crate.
* refactor: Move the generated types to their own crate
This allows us to have more lax warnings in that crate alone, keeping
the main crate more strict.
* style: Re-enable elided lifetimes lint in the main crate
This commit adds benchmarks for the float encoder and decoder. The
following scenarios are benchmarked:
- sequential values;
- random values;
- real CPU values (from Telegraf output).
Each scenario is benchmarked with a variety of block sizes.
This commit adds a basic read endpoint to pull data out of the database. In order to provide the basic functionality a few things were added:
* Time package with limited support for parsing Flux style durations
* API endpoint at /api/v2/read with query paramters of org_id, bucket_name, predicate, start, and stop
The start and stop query parameters only support relative durations.
The predicate parameter supports what is possible in the parse_predicate method and in the RocksDB implementation (only == comparisons on tags and AND or OR)
This commit brings in a Roaring Bitmap implementation to keep postings lists of tag key/value pairs to the set of series ids that have those pairs. The croaring implementation was used becasue the Treemap was required for u64 support for series ids and it was serializable (unlike the other pure Rust roaring implementation).
This doesn't shard the postings lists based on size. It also doesn't implement the time/index levels.
The predicate matching currently only works for a simple key = "value" match.
This updates to build system to use Prost to build the protobuf objects.
It adds tests for creating, storing and loading bucket definitions.
The tests use an actual on disk RocksDB implementation to ensure that its tested all the way to persistence.
Raphael Taylor-Davies
Jake Goulding
Andrew Lamb
Carol (Nichols || Goulding)
Carol (Nichols || Goulding)
Andrew Lamb
Dom
Paul Dix
Edd Robinson
Karsten Jeschkies
Paul Dix
Matt Freitas-Stavola