mirror of
https://github.com/neondatabase/neon.git
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7480a0338a
This API is rather pointless, as sane choice anyway requires knowledge of peers status and leaders lifetime in any case can intersect, which is fine for us -- so manual elections are straightforward. Here, we deterministically choose among the reasonably caught up safekeepers, shifting by timeline id to spread the load. A step towards custom broker https://github.com/neondatabase/neon/issues/2394
39 lines
1.3 KiB
Rust
39 lines
1.3 KiB
Rust
//! Module for the values to put into etcd.
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use serde::{Deserialize, Serialize};
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use serde_with::{serde_as, DisplayFromStr};
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use utils::lsn::Lsn;
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/// Data about safekeeper's timeline. Fields made optional for easy migrations.
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#[serde_as]
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#[derive(Debug, Clone, Deserialize, Serialize)]
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pub struct SkTimelineInfo {
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/// Term of the last entry.
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pub last_log_term: Option<u64>,
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/// LSN of the last record.
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#[serde_as(as = "Option<DisplayFromStr>")]
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#[serde(default)]
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pub flush_lsn: Option<Lsn>,
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/// Up to which LSN safekeeper regards its WAL as committed.
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#[serde_as(as = "Option<DisplayFromStr>")]
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#[serde(default)]
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pub commit_lsn: Option<Lsn>,
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/// LSN up to which safekeeper has backed WAL.
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#[serde_as(as = "Option<DisplayFromStr>")]
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#[serde(default)]
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pub backup_lsn: Option<Lsn>,
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/// LSN of last checkpoint uploaded by pageserver.
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#[serde_as(as = "Option<DisplayFromStr>")]
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#[serde(default)]
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pub remote_consistent_lsn: Option<Lsn>,
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#[serde_as(as = "Option<DisplayFromStr>")]
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#[serde(default)]
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pub peer_horizon_lsn: Option<Lsn>,
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#[serde_as(as = "Option<DisplayFromStr>")]
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#[serde(default)]
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pub local_start_lsn: Option<Lsn>,
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/// A connection string to use for WAL receiving.
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#[serde(default)]
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pub safekeeper_connstr: Option<String>,
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}
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