A database on one IOx server can, exclusively:
- Not interact with Kafka at all
- Send writes to Kafka
- Read writes from Kafka
Notably, a database on a particular server will never write *and* read from Kafka at the same time.
This brings the persistence windows into the catalog partition. It adds a helper method on TableBatch to get the min and max times for a given write. Finally, it adds this logic to the db to update persistence windows on every write while the partition write lock is being held.
* refactor: add ChunkPath to describe location of chunk in catalog
* refactor: rename ChunkPath to ChunkAddr
* chore: further renames
* chore: even more renames
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>
* feat: only store ChunkSnapshot in Closed state
* chore: review feedback
* feat: record MUB size as closed size
* chore: document column ordering assumption
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>
* refactor: Rearrange to allow injection of the current time in tests
* test: Failing test showing a point can be in the wrong partition
* fix: Only get the default time once per ShardedEntry creation, in router
* fix: Add context to panic error on tools
* fix: log new unwrap that has snuck in
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>
This will allow us to:
- handle all-NULL columns correctly
- be in-line with Parquet (where min/max are optional)
- handle NaNs at least somewhat sane (they do not "poison" stats
anymore)
* feat: Expose the storage usage for each column in system.chunk_columns
* fix: fixup logical conflicts
* refactor: move coalsce logic into the read buffer
* fix: Update system_tables to not use coalese
* fix: Improve comments
Co-authored-by: Carol (Nichols || Goulding) <193874+carols10cents@users.noreply.github.com>
Co-authored-by: Carol (Nichols || Goulding) <193874+carols10cents@users.noreply.github.com>
* feat: add column_type and influxdb_column_type, remove row_count from system.columns
* fix: update tests
* fix: more test update
* fix: Apply suggestions from code review
Co-authored-by: Carol (Nichols || Goulding) <193874+carols10cents@users.noreply.github.com>
* fix: fmt
* fix: copy/paste type conversion to avoid cross dependency between data_types and internal_types
Co-authored-by: Carol (Nichols || Goulding) <193874+carols10cents@users.noreply.github.com>
This refactors the write buffer to use the sequenced entry structure and the new segment definition. It removes the old replicated write and write_buffer.fbs.
Finally, it updates the SequencedEntry wrapper type around the Flatbuffer structure to be a trait so that SequencedEntry can be initialized from a borrowed Flatbuffer or an owned Vec<u8>.
How writes go into segments in the buffer and any kind of validation will likely have to be updated based on what kinds of guarantees we want to make in the buffer. However, that should probably come after we've rethought the design a bit around the new layout of chunks in the Parquet persistence.
Paul Dix
Andrew Lamb
Carol (Nichols || Goulding)
Edd Robinson
Marko Mikulicic
Marco Neumann
Raphael Taylor-Davies
Jacob Marble
kodiakhq[bot]
Nga Tran
Carol (Nichols || Goulding)
Dom