SnapshotMetricsResult

public interface SnapshotMetricsResult

Stores the metrics results for a SnapshotReport

Method Summary

Modifier and Type

Method

Description

Optional<Long>

getComputeTimestampToVersionTotalDurationNs()

long

getLoadCrcTotalDurationNs()

long

getLoadLogSegmentTotalDurationNs()

long

getLoadProtocolMetadataTotalDurationNs()

long

getLoadSnapshotTotalDurationNs()

Method Details
- getComputeTimestampToVersionTotalDurationNs
  
  Optional<Long> getComputeTimestampToVersionTotalDurationNs()
  
  Returns:
  
  the duration (ns) to resolve the provided timestamp to a table version for timestamp time-travel queries. Empty for time-travel by version or non-time-travel queries.
- getLoadSnapshotTotalDurationNs
  
  long getLoadSnapshotTotalDurationNs()
  
  Returns:
  
  the total duration (ns) to load the snapshot, including all steps such as resolving timestamp to version, LISTing the _delta_log, building the log segment, and determining the latest protocol and metadata.
- getLoadProtocolMetadataTotalDurationNs
  
  long getLoadProtocolMetadataTotalDurationNs()
  
  Returns:
  
  the duration (ns) to load the initial delta actions for the snapshot (such as the table protocol and metadata). 0 if snapshot construction fails before log replay.
- getLoadLogSegmentTotalDurationNs
  
  long getLoadLogSegmentTotalDurationNs()
  
  Returns:
  
  the duration (ns) to build the log segment for the specified version during snapshot construction. 0 if snapshot construction fails before this step.
- getLoadCrcTotalDurationNs
  
  long getLoadCrcTotalDurationNs()
  
  Returns:
  
  the duration (ns) to get CRC information during snapshot construction. 0 if snapshot construction fails before this step or if CRC is not read in loading snapshot.