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OpenAtomFoundation / pika

Pika is a Redis-Compatible database developed by Qihoo's infrastructure team.
BSD 3-Clause "New" or "Revised" License
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fix: Revised RocksDB-Related Parameters in Pika #2728

Closed cheniujh closed 3 months ago

cheniujh commented 3 months ago

1 set the default value of rate-limiter to 1024GB and make it dynamically changeable 2 allow user to config max-background-flushes and max-background-compactions to -1 while max-background-jobs is given 3 add conf item delayed-write-rate and make it dynamically changeable 4 add conf item max-compaction-bytes and make it dynamically changeable 4 revised the comment of rate-limiter-auto-tuned in pika.conf

Summary by CodeRabbit

coderabbitai[bot] commented 3 months ago

Walkthrough

The recent updates to the Pika configuration and codebase introduce detailed comments, new settings for controlling background jobs, write rates, and compaction bytes, as well as dynamic rate-limiter adjustments. The enhancements aim to fine-tune and dynamically manage the performance and scalability of the database, ensuring smoother operations and better resource management.

Changes

Files Change Summaries
conf/pika.conf Added comments, new settings (max-background-jobs, delayed-write-rate, max-compaction-bytes), and dynamic rate limiter adjustments.
include/pika_conf.h Introduced new methods and variables related to compaction bytes and write rates, updated default values, and improved initialization.
src/pika_admin.cc Enhanced ConfigCmd for new configurations handling (delayed-write-rate, max-compaction-bytes), including encoding/decoding and validation.
src/pika_server.cc Updated InitStorageOptions to leverage new configurations (max_compaction_bytes, delayed_write_rate).

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant PikaAdmin
    participant PikaConf
    participant PikaServer

    User ->> PikaAdmin: ConfigSet (delayed-write-rate, max-compaction-bytes)
    PikaAdmin ->> PikaConf: SetDelayedWriteRate(value), SetMaxCompactionBytes(value)
    PikaConf ->> PikaServer: Update Configuration
    PikaServer -) User: Configuration Updated

    User ->> PikaAdmin: ConfigGet
    PikaAdmin ->> PikaConf: GetDelayedWriteRate(), GetMaxCompactionBytes()
    PikaConf -) PikaAdmin: Return Values
    PikaAdmin -) User: Return Configuration Values

Poem

In the land of code, where bytes do play,
With new configs here to save the day.
Subcompactions rise, background jobs do twirl,
Writes flow gracefully, like a dance in a swirl.
From flushes to rates, new changes align,
Oh, code and configs, a harmony divine.

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