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Move PageserverFeedback to utils.

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It allows to replace u64 with proper Lsn and pretty print PageserverFeedback
with serde(_json). Now walsenders on safekeepers queried with debug_dump look
like

"walsenders": [
  {
    "ttid": "fafe0cf39a99c608c872706149de9d2a/b4fb3be6f576935e7f0fcb84bdb909a1",
    "addr": "127.0.0.1:48774",
    "conn_id": 3,
    "appname": "pageserver",
    "feedback": {
      "Pageserver": {
	"current_timeline_size": 32096256,
	"last_received_lsn": "0/2415298",
	"disk_consistent_lsn": "0/1696628",
	"remote_consistent_lsn": "0/0",
	"replytime": "2023-04-12T13:54:53.958856+00:00"
      }
    }
  }
],
This commit is contained in:
Arseny Sher
2023-04-12 17:58:19 +04:00
committed by Arseny Sher
parent b2a3981ead
commit fdacfaabfd
12 changed files with 222 additions and 195 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
pageserver/src/tenant/timeline/walreceiver/walreceiver_connection.rs
View File

@@ -37,8 +37,8 @@ use crate::{
use postgres_backend::is_expected_io_error;
use postgres_connection::PgConnectionConfig;
use postgres_ffi::waldecoder::WalStreamDecoder;
use pq_proto::PageserverFeedback;
use utils::lsn::Lsn;
use utils::pageserver_feedback::PageserverFeedback;
/// Status of the connection.
#[derive(Debug, Clone, Copy)]
@@ -319,12 +319,12 @@ pub(super) async fn handle_walreceiver_connection(
timeline.get_remote_consistent_lsn().unwrap_or(Lsn(0));
// The last LSN we processed. It is not guaranteed to survive pageserver crash.
let last_received_lsn = u64::from(last_lsn);
let last_received_lsn = last_lsn;
// `disk_consistent_lsn` is the LSN at which page server guarantees local persistence of all received data
let disk_consistent_lsn = u64::from(timeline.get_disk_consistent_lsn());
let disk_consistent_lsn = timeline.get_disk_consistent_lsn();
// The last LSN that is synced to remote storage and is guaranteed to survive pageserver crash
// Used by safekeepers to remove WAL preceding `remote_consistent_lsn`.
let remote_consistent_lsn = u64::from(timeline_remote_consistent_lsn);
let remote_consistent_lsn = timeline_remote_consistent_lsn;
let ts = SystemTime::now();
// Update the status about what we just received. This is shown in the mgmt API.