pub struct ShardUsageAudit {
pub current_state_batches_bytes: u64,
pub current_state_rollups_bytes: u64,
pub referenced_not_current_state_bytes: u64,
pub not_leaked_not_referenced_bytes: u64,
pub leaked_bytes: u64,
}Expand description
A breakdown of the size of various contributions to a shard’s blob (S3) usage.
This is structured as a “funnel”, in which the steps are additive.
Specifically 1=2a+2b, 2a=3a+3b, 3a=4a+4b, 4a=5a+5b (so the “a“s are
the funnel and the “b“s are places where data splits out of the funnel).
Fields§
§current_state_batches_bytes: u645a: Data in batches/parts referenced by the most recent version of state.
current_state_rollups_bytes: u645b: Data in rollups referenced by the most recent version of state.
referenced_not_current_state_bytes: u644b: Data referenced by a live version of state that is not the most recent.
Possible causes:
- SeqNo hold
- Waiting for a GC run
not_leaked_not_referenced_bytes: u643b: Data not referenced by any live version of state.
Possible causes:
- A batch or rollup that’s about to be linked into state
- A batch leaked by a crash, but the writer has not yet been force expired
- A rollup leaked by a crash, but GC has not yet advanced past the SeqNo
leaked_bytes: u642b: Data that is eligible for reclamation by a (future) leaked blob cleanup task (database-issues#5018).
Possible causes:
- A batch or rollup written by a process which crashed (or was rolled) before it could be linked into state.
Implementations§
Source§impl ShardUsageAudit
impl ShardUsageAudit
Sourcepub fn current_state_bytes(&self) -> u64
pub fn current_state_bytes(&self) -> u64
4a: Data referenced by the most recent version of state.
Sourcepub fn referenced_bytes(&self) -> u64
pub fn referenced_bytes(&self) -> u64
3a: Data referenced by any live version of state.
Sourcepub fn not_leaked_bytes(&self) -> u64
pub fn not_leaked_bytes(&self) -> u64
2a: Data that would not be reclaimed by a (future) leaked blob cleanup task (database-issues#5018).
Sourcepub fn total_bytes(&self) -> u64
pub fn total_bytes(&self) -> u64
1: Raw blob (S3) usage.
NB: Due to race conditions between reads of blob and consensus in the usage code, this might be a slight under-counting.
Trait Implementations§
Source§impl Clone for ShardUsageAudit
impl Clone for ShardUsageAudit
Source§fn clone(&self) -> ShardUsageAudit
fn clone(&self) -> ShardUsageAudit
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
source. Read moreSource§impl Debug for ShardUsageAudit
impl Debug for ShardUsageAudit
Source§impl Display for ShardUsageAudit
impl Display for ShardUsageAudit
Source§impl From<ShardUsageCumulativeMaybeRacy<'_>> for ShardUsageAudit
impl From<ShardUsageCumulativeMaybeRacy<'_>> for ShardUsageAudit
Source§fn from(x: ShardUsageCumulativeMaybeRacy<'_>) -> Self
fn from(x: ShardUsageCumulativeMaybeRacy<'_>) -> Self
Auto Trait Implementations§
impl Freeze for ShardUsageAudit
impl RefUnwindSafe for ShardUsageAudit
impl Send for ShardUsageAudit
impl Sync for ShardUsageAudit
impl Unpin for ShardUsageAudit
impl UnwindSafe for ShardUsageAudit
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