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Move constants related to metadata file to metadata.rs.

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They're not used anywhere else, so seems like a better place.
This commit is contained in:
Heikki Linnakangas
2021-12-13 14:43:56 +02:00
committed by Kirill Bulatov
parent 72ef59c378
commit e0d41ac6a3
2 changed files with 6 additions and 9 deletions
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5
pageserver/src/layered_repository.rs
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@@ -86,11 +86,6 @@ static ZERO_PAGE: Bytes = Bytes::from_static(&[0u8; 8192]);
// Timeout when waiting for WAL receiver to catch up to an LSN given in a GetPage@LSN call.
static TIMEOUT: Duration = Duration::from_secs(60);
// Taken from PG_CONTROL_MAX_SAFE_SIZE
const METADATA_MAX_SAFE_SIZE: usize = 512;
const METADATA_CHECKSUM_SIZE: usize = std::mem::size_of::<u32>();
const METADATA_MAX_DATA_SIZE: usize = METADATA_MAX_SAFE_SIZE - METADATA_CHECKSUM_SIZE;
// Metrics collected on operations on the storage repository.
lazy_static! {
static ref STORAGE_TIME: HistogramVec = register_histogram_vec!(

10
pageserver/src/layered_repository/metadata.rs
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@@ -15,10 +15,12 @@ use zenith_utils::{
zid::{ZTenantId, ZTimelineId},
};
use crate::{
layered_repository::{METADATA_CHECKSUM_SIZE, METADATA_MAX_DATA_SIZE, METADATA_MAX_SAFE_SIZE},
PageServerConf,
};
use crate::PageServerConf;
// Taken from PG_CONTROL_MAX_SAFE_SIZE
const METADATA_MAX_SAFE_SIZE: usize = 512;
const METADATA_CHECKSUM_SIZE: usize = std::mem::size_of::<u32>();
const METADATA_MAX_DATA_SIZE: usize = METADATA_MAX_SAFE_SIZE - METADATA_CHECKSUM_SIZE;
/// The name of the metadata file pageserver creates per timeline.
pub const METADATA_FILE_NAME: &str = "metadata";