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## Problem We want to extract safekeeper http client to separate crate for use in storage controller and neon_local. However, many types used in the API are internal to safekeeper. ## Summary of changes Move them to safekeeper_api crate. No functional changes. ref https://github.com/neondatabase/neon/issues/9011
675 lines
28 KiB
Rust
675 lines
28 KiB
Rust
//! Code to deal with safekeeper control file upgrades
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use crate::{
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safekeeper::{AcceptorState, PgUuid, TermHistory, TermLsn},
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state::{EvictionState, PersistedPeers, TimelinePersistentState},
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wal_backup_partial,
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};
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use anyhow::{bail, Result};
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use pq_proto::SystemId;
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use safekeeper_api::{ServerInfo, Term};
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use serde::{Deserialize, Serialize};
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use tracing::*;
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use utils::{
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bin_ser::LeSer,
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id::{TenantId, TimelineId},
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lsn::Lsn,
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};
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/// Persistent consensus state of the acceptor.
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#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
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struct AcceptorStateV1 {
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/// acceptor's last term it voted for (advanced in 1 phase)
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term: Term,
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/// acceptor's epoch (advanced, i.e. bumped to 'term' when VCL is reached).
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epoch: Term,
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}
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#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
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struct SafeKeeperStateV1 {
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/// persistent acceptor state
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acceptor_state: AcceptorStateV1,
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/// information about server
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server: ServerInfoV2,
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/// Unique id of the last *elected* proposer we dealt with. Not needed
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/// for correctness, exists for monitoring purposes.
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proposer_uuid: PgUuid,
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/// part of WAL acknowledged by quorum and available locally
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commit_lsn: Lsn,
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/// minimal LSN which may be needed for recovery of some safekeeper (end_lsn
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/// of last record streamed to everyone)
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truncate_lsn: Lsn,
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// Safekeeper starts receiving WAL from this LSN, zeros before it ought to
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// be skipped during decoding.
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wal_start_lsn: Lsn,
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}
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#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
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pub struct ServerInfoV2 {
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/// Postgres server version
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pub pg_version: u32,
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pub system_id: SystemId,
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pub tenant_id: TenantId,
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pub timeline_id: TimelineId,
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pub wal_seg_size: u32,
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}
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#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
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pub struct SafeKeeperStateV2 {
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/// persistent acceptor state
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pub acceptor_state: AcceptorState,
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/// information about server
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pub server: ServerInfoV2,
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/// Unique id of the last *elected* proposer we dealt with. Not needed
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/// for correctness, exists for monitoring purposes.
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pub proposer_uuid: PgUuid,
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/// part of WAL acknowledged by quorum and available locally
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pub commit_lsn: Lsn,
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/// minimal LSN which may be needed for recovery of some safekeeper (end_lsn
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/// of last record streamed to everyone)
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pub truncate_lsn: Lsn,
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// Safekeeper starts receiving WAL from this LSN, zeros before it ought to
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// be skipped during decoding.
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pub wal_start_lsn: Lsn,
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}
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#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
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pub struct ServerInfoV3 {
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/// Postgres server version
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pub pg_version: u32,
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pub system_id: SystemId,
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#[serde(with = "hex")]
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pub tenant_id: TenantId,
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#[serde(with = "hex")]
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pub timeline_id: TimelineId,
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pub wal_seg_size: u32,
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}
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#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
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pub struct SafeKeeperStateV3 {
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/// persistent acceptor state
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pub acceptor_state: AcceptorState,
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/// information about server
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pub server: ServerInfoV3,
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/// Unique id of the last *elected* proposer we dealt with. Not needed
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/// for correctness, exists for monitoring purposes.
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#[serde(with = "hex")]
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pub proposer_uuid: PgUuid,
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/// part of WAL acknowledged by quorum and available locally
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pub commit_lsn: Lsn,
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/// minimal LSN which may be needed for recovery of some safekeeper (end_lsn
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/// of last record streamed to everyone)
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pub truncate_lsn: Lsn,
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// Safekeeper starts receiving WAL from this LSN, zeros before it ought to
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// be skipped during decoding.
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pub wal_start_lsn: Lsn,
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}
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#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
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pub struct SafeKeeperStateV4 {
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#[serde(with = "hex")]
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pub tenant_id: TenantId,
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#[serde(with = "hex")]
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pub timeline_id: TimelineId,
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/// persistent acceptor state
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pub acceptor_state: AcceptorState,
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/// information about server
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pub server: ServerInfo,
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/// Unique id of the last *elected* proposer we dealt with. Not needed
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/// for correctness, exists for monitoring purposes.
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#[serde(with = "hex")]
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pub proposer_uuid: PgUuid,
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/// Part of WAL acknowledged by quorum and available locally. Always points
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/// to record boundary.
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pub commit_lsn: Lsn,
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/// First LSN not yet offloaded to s3. Useful to persist to avoid finding
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/// out offloading progress on boot.
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pub s3_wal_lsn: Lsn,
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/// Minimal LSN which may be needed for recovery of some safekeeper (end_lsn
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/// of last record streamed to everyone). Persisting it helps skipping
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/// recovery in walproposer, generally we compute it from peers. In
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/// walproposer proto called 'truncate_lsn'.
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pub peer_horizon_lsn: Lsn,
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/// LSN of the oldest known checkpoint made by pageserver and successfully
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/// pushed to s3. We don't remove WAL beyond it. Persisted only for
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/// informational purposes, we receive it from pageserver (or broker).
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pub remote_consistent_lsn: Lsn,
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// Peers and their state as we remember it. Knowing peers themselves is
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// fundamental; but state is saved here only for informational purposes and
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// obviously can be stale. (Currently not saved at all, but let's provision
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// place to have less file version upgrades).
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pub peers: PersistedPeers,
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}
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#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
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pub struct SafeKeeperStateV7 {
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#[serde(with = "hex")]
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pub tenant_id: TenantId,
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#[serde(with = "hex")]
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pub timeline_id: TimelineId,
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/// persistent acceptor state
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pub acceptor_state: AcceptorState,
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/// information about server
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pub server: ServerInfo,
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/// Unique id of the last *elected* proposer we dealt with. Not needed
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/// for correctness, exists for monitoring purposes.
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#[serde(with = "hex")]
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pub proposer_uuid: PgUuid,
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/// Since which LSN this timeline generally starts. Safekeeper might have
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/// joined later.
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pub timeline_start_lsn: Lsn,
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/// Since which LSN safekeeper has (had) WAL for this timeline.
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/// All WAL segments next to one containing local_start_lsn are
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/// filled with data from the beginning.
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pub local_start_lsn: Lsn,
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/// Part of WAL acknowledged by quorum *and available locally*. Always points
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/// to record boundary.
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pub commit_lsn: Lsn,
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/// LSN that points to the end of the last backed up segment. Useful to
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/// persist to avoid finding out offloading progress on boot.
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pub backup_lsn: Lsn,
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/// Minimal LSN which may be needed for recovery of some safekeeper (end_lsn
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/// of last record streamed to everyone). Persisting it helps skipping
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/// recovery in walproposer, generally we compute it from peers. In
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/// walproposer proto called 'truncate_lsn'. Updates are currently drived
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/// only by walproposer.
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pub peer_horizon_lsn: Lsn,
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/// LSN of the oldest known checkpoint made by pageserver and successfully
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/// pushed to s3. We don't remove WAL beyond it. Persisted only for
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/// informational purposes, we receive it from pageserver (or broker).
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pub remote_consistent_lsn: Lsn,
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// Peers and their state as we remember it. Knowing peers themselves is
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// fundamental; but state is saved here only for informational purposes and
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// obviously can be stale. (Currently not saved at all, but let's provision
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// place to have less file version upgrades).
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pub peers: PersistedPeers,
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}
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/// Persistent information stored on safekeeper node about timeline.
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/// On disk data is prefixed by magic and format version and followed by checksum.
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#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
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pub struct SafeKeeperStateV8 {
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#[serde(with = "hex")]
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pub tenant_id: TenantId,
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#[serde(with = "hex")]
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pub timeline_id: TimelineId,
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/// persistent acceptor state
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pub acceptor_state: AcceptorState,
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/// information about server
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pub server: ServerInfo,
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/// Unique id of the last *elected* proposer we dealt with. Not needed
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/// for correctness, exists for monitoring purposes.
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#[serde(with = "hex")]
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pub proposer_uuid: PgUuid,
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/// Since which LSN this timeline generally starts. Safekeeper might have
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/// joined later.
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pub timeline_start_lsn: Lsn,
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/// Since which LSN safekeeper has (had) WAL for this timeline.
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/// All WAL segments next to one containing local_start_lsn are
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/// filled with data from the beginning.
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pub local_start_lsn: Lsn,
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/// Part of WAL acknowledged by quorum *and available locally*. Always points
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/// to record boundary.
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pub commit_lsn: Lsn,
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/// LSN that points to the end of the last backed up segment. Useful to
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/// persist to avoid finding out offloading progress on boot.
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pub backup_lsn: Lsn,
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/// Minimal LSN which may be needed for recovery of some safekeeper (end_lsn
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/// of last record streamed to everyone). Persisting it helps skipping
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/// recovery in walproposer, generally we compute it from peers. In
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/// walproposer proto called 'truncate_lsn'. Updates are currently drived
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/// only by walproposer.
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pub peer_horizon_lsn: Lsn,
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/// LSN of the oldest known checkpoint made by pageserver and successfully
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/// pushed to s3. We don't remove WAL beyond it. Persisted only for
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/// informational purposes, we receive it from pageserver (or broker).
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pub remote_consistent_lsn: Lsn,
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/// Peers and their state as we remember it. Knowing peers themselves is
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/// fundamental; but state is saved here only for informational purposes and
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/// obviously can be stale. (Currently not saved at all, but let's provision
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/// place to have less file version upgrades).
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pub peers: PersistedPeers,
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/// Holds names of partial segments uploaded to remote storage. Used to
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/// clean up old objects without leaving garbage in remote storage.
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pub partial_backup: wal_backup_partial::State,
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}
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pub fn upgrade_control_file(buf: &[u8], version: u32) -> Result<TimelinePersistentState> {
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// migrate to storing full term history
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if version == 1 {
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info!("reading safekeeper control file version {}", version);
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let oldstate = SafeKeeperStateV1::des(&buf[..buf.len()])?;
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let ac = AcceptorState {
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term: oldstate.acceptor_state.term,
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term_history: TermHistory(vec![TermLsn {
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term: oldstate.acceptor_state.epoch,
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lsn: Lsn(0),
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}]),
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};
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return Ok(TimelinePersistentState {
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tenant_id: oldstate.server.tenant_id,
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timeline_id: oldstate.server.timeline_id,
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acceptor_state: ac,
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server: ServerInfo {
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pg_version: oldstate.server.pg_version,
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system_id: oldstate.server.system_id,
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wal_seg_size: oldstate.server.wal_seg_size,
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},
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proposer_uuid: oldstate.proposer_uuid,
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timeline_start_lsn: Lsn(0),
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local_start_lsn: Lsn(0),
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commit_lsn: oldstate.commit_lsn,
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backup_lsn: Lsn(0),
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peer_horizon_lsn: oldstate.truncate_lsn,
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remote_consistent_lsn: Lsn(0),
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peers: PersistedPeers(vec![]),
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partial_backup: wal_backup_partial::State::default(),
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eviction_state: EvictionState::Present,
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});
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// migrate to hexing some ids
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} else if version == 2 {
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info!("reading safekeeper control file version {}", version);
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let oldstate = SafeKeeperStateV2::des(&buf[..buf.len()])?;
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let server = ServerInfo {
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pg_version: oldstate.server.pg_version,
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system_id: oldstate.server.system_id,
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wal_seg_size: oldstate.server.wal_seg_size,
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};
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return Ok(TimelinePersistentState {
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tenant_id: oldstate.server.tenant_id,
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timeline_id: oldstate.server.timeline_id,
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acceptor_state: oldstate.acceptor_state,
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server,
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proposer_uuid: oldstate.proposer_uuid,
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timeline_start_lsn: Lsn(0),
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local_start_lsn: Lsn(0),
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commit_lsn: oldstate.commit_lsn,
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backup_lsn: Lsn(0),
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peer_horizon_lsn: oldstate.truncate_lsn,
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remote_consistent_lsn: Lsn(0),
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peers: PersistedPeers(vec![]),
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partial_backup: wal_backup_partial::State::default(),
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eviction_state: EvictionState::Present,
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});
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// migrate to moving tenant_id/timeline_id to the top and adding some lsns
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} else if version == 3 {
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info!("reading safekeeper control file version {version}");
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let oldstate = SafeKeeperStateV3::des(&buf[..buf.len()])?;
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let server = ServerInfo {
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pg_version: oldstate.server.pg_version,
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system_id: oldstate.server.system_id,
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wal_seg_size: oldstate.server.wal_seg_size,
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};
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return Ok(TimelinePersistentState {
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tenant_id: oldstate.server.tenant_id,
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timeline_id: oldstate.server.timeline_id,
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acceptor_state: oldstate.acceptor_state,
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server,
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proposer_uuid: oldstate.proposer_uuid,
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timeline_start_lsn: Lsn(0),
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local_start_lsn: Lsn(0),
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commit_lsn: oldstate.commit_lsn,
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backup_lsn: Lsn(0),
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peer_horizon_lsn: oldstate.truncate_lsn,
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remote_consistent_lsn: Lsn(0),
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peers: PersistedPeers(vec![]),
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partial_backup: wal_backup_partial::State::default(),
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eviction_state: EvictionState::Present,
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});
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// migrate to having timeline_start_lsn
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} else if version == 4 {
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info!("reading safekeeper control file version {}", version);
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let oldstate = SafeKeeperStateV4::des(&buf[..buf.len()])?;
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let server = ServerInfo {
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pg_version: oldstate.server.pg_version,
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system_id: oldstate.server.system_id,
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wal_seg_size: oldstate.server.wal_seg_size,
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};
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return Ok(TimelinePersistentState {
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tenant_id: oldstate.tenant_id,
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timeline_id: oldstate.timeline_id,
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acceptor_state: oldstate.acceptor_state,
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server,
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proposer_uuid: oldstate.proposer_uuid,
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timeline_start_lsn: Lsn(0),
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local_start_lsn: Lsn(0),
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commit_lsn: oldstate.commit_lsn,
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backup_lsn: Lsn::INVALID,
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peer_horizon_lsn: oldstate.peer_horizon_lsn,
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remote_consistent_lsn: Lsn(0),
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peers: PersistedPeers(vec![]),
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partial_backup: wal_backup_partial::State::default(),
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eviction_state: EvictionState::Present,
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});
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} else if version == 5 {
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info!("reading safekeeper control file version {}", version);
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let mut oldstate = TimelinePersistentState::des(&buf[..buf.len()])?;
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if oldstate.timeline_start_lsn != Lsn(0) {
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return Ok(oldstate);
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}
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// set special timeline_start_lsn because we don't know the real one
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info!("setting timeline_start_lsn and local_start_lsn to Lsn(1)");
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oldstate.timeline_start_lsn = Lsn(1);
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oldstate.local_start_lsn = Lsn(1);
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return Ok(oldstate);
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} else if version == 6 {
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info!("reading safekeeper control file version {}", version);
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let mut oldstate = TimelinePersistentState::des(&buf[..buf.len()])?;
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if oldstate.server.pg_version != 0 {
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return Ok(oldstate);
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}
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// set pg_version to the default v14
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info!("setting pg_version to 140005");
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oldstate.server.pg_version = 140005;
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return Ok(oldstate);
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} else if version == 7 {
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info!("reading safekeeper control file version {}", version);
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let oldstate = SafeKeeperStateV7::des(&buf[..buf.len()])?;
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return Ok(TimelinePersistentState {
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tenant_id: oldstate.tenant_id,
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timeline_id: oldstate.timeline_id,
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acceptor_state: oldstate.acceptor_state,
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server: oldstate.server,
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proposer_uuid: oldstate.proposer_uuid,
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timeline_start_lsn: oldstate.timeline_start_lsn,
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local_start_lsn: oldstate.local_start_lsn,
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commit_lsn: oldstate.commit_lsn,
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backup_lsn: oldstate.backup_lsn,
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peer_horizon_lsn: oldstate.peer_horizon_lsn,
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remote_consistent_lsn: oldstate.remote_consistent_lsn,
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peers: oldstate.peers,
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partial_backup: wal_backup_partial::State::default(),
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eviction_state: EvictionState::Present,
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});
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} else if version == 8 {
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let oldstate = SafeKeeperStateV8::des(&buf[..buf.len()])?;
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return Ok(TimelinePersistentState {
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tenant_id: oldstate.tenant_id,
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timeline_id: oldstate.timeline_id,
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acceptor_state: oldstate.acceptor_state,
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server: oldstate.server,
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proposer_uuid: oldstate.proposer_uuid,
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timeline_start_lsn: oldstate.timeline_start_lsn,
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local_start_lsn: oldstate.local_start_lsn,
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commit_lsn: oldstate.commit_lsn,
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backup_lsn: oldstate.backup_lsn,
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peer_horizon_lsn: oldstate.peer_horizon_lsn,
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remote_consistent_lsn: oldstate.remote_consistent_lsn,
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peers: oldstate.peers,
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partial_backup: oldstate.partial_backup,
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eviction_state: EvictionState::Present,
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});
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}
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// TODO: persist the file back to the disk after upgrade
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// TODO: think about backward compatibility and rollbacks
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bail!("unsupported safekeeper control file version {}", version)
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}
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pub fn downgrade_v9_to_v8(state: &TimelinePersistentState) -> SafeKeeperStateV8 {
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assert!(state.eviction_state == EvictionState::Present);
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SafeKeeperStateV8 {
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tenant_id: state.tenant_id,
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timeline_id: state.timeline_id,
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acceptor_state: state.acceptor_state.clone(),
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server: state.server.clone(),
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proposer_uuid: state.proposer_uuid,
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timeline_start_lsn: state.timeline_start_lsn,
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local_start_lsn: state.local_start_lsn,
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commit_lsn: state.commit_lsn,
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backup_lsn: state.backup_lsn,
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peer_horizon_lsn: state.peer_horizon_lsn,
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remote_consistent_lsn: state.remote_consistent_lsn,
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peers: state.peers.clone(),
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partial_backup: state.partial_backup.clone(),
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}
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}
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#[cfg(test)]
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mod tests {
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use std::str::FromStr;
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use utils::{id::NodeId, Hex};
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use crate::safekeeper::PersistedPeerInfo;
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use super::*;
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#[test]
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fn roundtrip_v1() {
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let tenant_id = TenantId::from_str("cf0480929707ee75372337efaa5ecf96").unwrap();
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let timeline_id = TimelineId::from_str("112ded66422aa5e953e5440fa5427ac4").unwrap();
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let state = SafeKeeperStateV1 {
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acceptor_state: AcceptorStateV1 {
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term: 42,
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epoch: 43,
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},
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server: ServerInfoV2 {
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pg_version: 14,
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system_id: 0x1234567887654321,
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tenant_id,
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timeline_id,
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wal_seg_size: 0x12345678,
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},
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proposer_uuid: {
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let mut arr = timeline_id.as_arr();
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arr.reverse();
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arr
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},
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commit_lsn: Lsn(1234567800),
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truncate_lsn: Lsn(123456780),
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wal_start_lsn: Lsn(1234567800 - 8),
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};
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let ser = state.ser().unwrap();
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#[rustfmt::skip]
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let expected = [
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// term
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0x2a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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// epoch
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0x2b, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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// pg_version
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0x0e, 0x00, 0x00, 0x00,
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// system_id
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0x21, 0x43, 0x65, 0x87, 0x78, 0x56, 0x34, 0x12,
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// tenant_id
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0xcf, 0x04, 0x80, 0x92, 0x97, 0x07, 0xee, 0x75, 0x37, 0x23, 0x37, 0xef, 0xaa, 0x5e, 0xcf, 0x96,
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// timeline_id
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0x11, 0x2d, 0xed, 0x66, 0x42, 0x2a, 0xa5, 0xe9, 0x53, 0xe5, 0x44, 0x0f, 0xa5, 0x42, 0x7a, 0xc4,
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// wal_seg_size
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0x78, 0x56, 0x34, 0x12,
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// proposer_uuid
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0xc4, 0x7a, 0x42, 0xa5, 0x0f, 0x44, 0xe5, 0x53, 0xe9, 0xa5, 0x2a, 0x42, 0x66, 0xed, 0x2d, 0x11,
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// commit_lsn
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0x78, 0x02, 0x96, 0x49, 0x00, 0x00, 0x00, 0x00,
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// truncate_lsn
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0x0c, 0xcd, 0x5b, 0x07, 0x00, 0x00, 0x00, 0x00,
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// wal_start_lsn
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0x70, 0x02, 0x96, 0x49, 0x00, 0x00, 0x00, 0x00,
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];
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assert_eq!(Hex(&ser), Hex(&expected));
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let deser = SafeKeeperStateV1::des(&ser).unwrap();
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assert_eq!(state, deser);
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}
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#[test]
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fn roundtrip_v2() {
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let tenant_id = TenantId::from_str("cf0480929707ee75372337efaa5ecf96").unwrap();
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let timeline_id = TimelineId::from_str("112ded66422aa5e953e5440fa5427ac4").unwrap();
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let state = SafeKeeperStateV2 {
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acceptor_state: AcceptorState {
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term: 42,
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term_history: TermHistory(vec![TermLsn {
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lsn: Lsn(0x1),
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term: 41,
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}]),
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},
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server: ServerInfoV2 {
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pg_version: 14,
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system_id: 0x1234567887654321,
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tenant_id,
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timeline_id,
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wal_seg_size: 0x12345678,
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},
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proposer_uuid: {
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let mut arr = timeline_id.as_arr();
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arr.reverse();
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arr
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},
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commit_lsn: Lsn(1234567800),
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truncate_lsn: Lsn(123456780),
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wal_start_lsn: Lsn(1234567800 - 8),
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};
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let ser = state.ser().unwrap();
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let expected = [
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0x2a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x29, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x00, 0x00, 0x21, 0x43, 0x65, 0x87, 0x78, 0x56,
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0x34, 0x12, 0xcf, 0x04, 0x80, 0x92, 0x97, 0x07, 0xee, 0x75, 0x37, 0x23, 0x37, 0xef,
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0xaa, 0x5e, 0xcf, 0x96, 0x11, 0x2d, 0xed, 0x66, 0x42, 0x2a, 0xa5, 0xe9, 0x53, 0xe5,
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0x44, 0x0f, 0xa5, 0x42, 0x7a, 0xc4, 0x78, 0x56, 0x34, 0x12, 0xc4, 0x7a, 0x42, 0xa5,
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0x0f, 0x44, 0xe5, 0x53, 0xe9, 0xa5, 0x2a, 0x42, 0x66, 0xed, 0x2d, 0x11, 0x78, 0x02,
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0x96, 0x49, 0x00, 0x00, 0x00, 0x00, 0x0c, 0xcd, 0x5b, 0x07, 0x00, 0x00, 0x00, 0x00,
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0x70, 0x02, 0x96, 0x49, 0x00, 0x00, 0x00, 0x00,
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];
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assert_eq!(Hex(&ser), Hex(&expected));
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let deser = SafeKeeperStateV2::des(&ser).unwrap();
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assert_eq!(state, deser);
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}
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#[test]
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fn roundtrip_v3() {
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let tenant_id = TenantId::from_str("cf0480929707ee75372337efaa5ecf96").unwrap();
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let timeline_id = TimelineId::from_str("112ded66422aa5e953e5440fa5427ac4").unwrap();
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let state = SafeKeeperStateV3 {
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acceptor_state: AcceptorState {
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term: 42,
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term_history: TermHistory(vec![TermLsn {
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lsn: Lsn(0x1),
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term: 41,
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}]),
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},
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server: ServerInfoV3 {
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pg_version: 14,
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system_id: 0x1234567887654321,
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tenant_id,
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timeline_id,
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wal_seg_size: 0x12345678,
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},
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proposer_uuid: {
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let mut arr = timeline_id.as_arr();
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arr.reverse();
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arr
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},
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commit_lsn: Lsn(1234567800),
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truncate_lsn: Lsn(123456780),
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wal_start_lsn: Lsn(1234567800 - 8),
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};
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let ser = state.ser().unwrap();
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let expected = [
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0x2a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x29, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x0e, 0x00, 0x00, 0x00, 0x21, 0x43, 0x65, 0x87, 0x78, 0x56,
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0x34, 0x12, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x66, 0x30, 0x34,
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0x38, 0x30, 0x39, 0x32, 0x39, 0x37, 0x30, 0x37, 0x65, 0x65, 0x37, 0x35, 0x33, 0x37,
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0x32, 0x33, 0x33, 0x37, 0x65, 0x66, 0x61, 0x61, 0x35, 0x65, 0x63, 0x66, 0x39, 0x36,
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0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x31, 0x31, 0x32, 0x64, 0x65, 0x64,
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0x36, 0x36, 0x34, 0x32, 0x32, 0x61, 0x61, 0x35, 0x65, 0x39, 0x35, 0x33, 0x65, 0x35,
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0x34, 0x34, 0x30, 0x66, 0x61, 0x35, 0x34, 0x32, 0x37, 0x61, 0x63, 0x34, 0x78, 0x56,
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0x34, 0x12, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x34, 0x37, 0x61,
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0x34, 0x32, 0x61, 0x35, 0x30, 0x66, 0x34, 0x34, 0x65, 0x35, 0x35, 0x33, 0x65, 0x39,
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0x61, 0x35, 0x32, 0x61, 0x34, 0x32, 0x36, 0x36, 0x65, 0x64, 0x32, 0x64, 0x31, 0x31,
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0x78, 0x02, 0x96, 0x49, 0x00, 0x00, 0x00, 0x00, 0x0c, 0xcd, 0x5b, 0x07, 0x00, 0x00,
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0x00, 0x00, 0x70, 0x02, 0x96, 0x49, 0x00, 0x00, 0x00, 0x00,
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];
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assert_eq!(Hex(&ser), Hex(&expected));
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let deser = SafeKeeperStateV3::des(&ser).unwrap();
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assert_eq!(state, deser);
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}
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#[test]
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fn roundtrip_v4() {
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let tenant_id = TenantId::from_str("cf0480929707ee75372337efaa5ecf96").unwrap();
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let timeline_id = TimelineId::from_str("112ded66422aa5e953e5440fa5427ac4").unwrap();
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let state = SafeKeeperStateV4 {
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tenant_id,
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timeline_id,
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acceptor_state: AcceptorState {
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term: 42,
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term_history: TermHistory(vec![TermLsn {
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lsn: Lsn(0x1),
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term: 41,
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}]),
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},
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server: ServerInfo {
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pg_version: 14,
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system_id: 0x1234567887654321,
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wal_seg_size: 0x12345678,
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},
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proposer_uuid: {
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let mut arr = timeline_id.as_arr();
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arr.reverse();
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arr
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},
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peers: PersistedPeers(vec![(
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NodeId(1),
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PersistedPeerInfo {
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backup_lsn: Lsn(1234567000),
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term: 42,
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flush_lsn: Lsn(1234567800 - 8),
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commit_lsn: Lsn(1234567600),
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},
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)]),
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commit_lsn: Lsn(1234567800),
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s3_wal_lsn: Lsn(1234567300),
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peer_horizon_lsn: Lsn(9999999),
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remote_consistent_lsn: Lsn(1234560000),
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};
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let ser = state.ser().unwrap();
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let expected = [
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0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x66, 0x30, 0x34, 0x38, 0x30,
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0x39, 0x32, 0x39, 0x37, 0x30, 0x37, 0x65, 0x65, 0x37, 0x35, 0x33, 0x37, 0x32, 0x33,
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0x33, 0x37, 0x65, 0x66, 0x61, 0x61, 0x35, 0x65, 0x63, 0x66, 0x39, 0x36, 0x20, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x31, 0x31, 0x32, 0x64, 0x65, 0x64, 0x36, 0x36,
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0x34, 0x32, 0x32, 0x61, 0x61, 0x35, 0x65, 0x39, 0x35, 0x33, 0x65, 0x35, 0x34, 0x34,
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0x30, 0x66, 0x61, 0x35, 0x34, 0x32, 0x37, 0x61, 0x63, 0x34, 0x2a, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x29, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
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0x0e, 0x00, 0x00, 0x00, 0x21, 0x43, 0x65, 0x87, 0x78, 0x56, 0x34, 0x12, 0x78, 0x56,
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0x34, 0x12, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x63, 0x34, 0x37, 0x61,
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0x34, 0x32, 0x61, 0x35, 0x30, 0x66, 0x34, 0x34, 0x65, 0x35, 0x35, 0x33, 0x65, 0x39,
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0x61, 0x35, 0x32, 0x61, 0x34, 0x32, 0x36, 0x36, 0x65, 0x64, 0x32, 0x64, 0x31, 0x31,
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0x78, 0x02, 0x96, 0x49, 0x00, 0x00, 0x00, 0x00, 0x84, 0x00, 0x96, 0x49, 0x00, 0x00,
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0x00, 0x00, 0x7f, 0x96, 0x98, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe4, 0x95, 0x49,
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0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x58, 0xff, 0x95, 0x49, 0x00, 0x00, 0x00, 0x00,
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0x2a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x70, 0x02, 0x96, 0x49, 0x00, 0x00,
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0x00, 0x00, 0xb0, 0x01, 0x96, 0x49, 0x00, 0x00, 0x00, 0x00,
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];
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assert_eq!(Hex(&ser), Hex(&expected));
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let deser = SafeKeeperStateV4::des(&ser).unwrap();
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assert_eq!(state, deser);
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}
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}
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