Line data Source code
1 : use std::collections::{HashMap, HashSet};
2 : use std::str::FromStr;
3 : use std::sync::Arc;
4 : use std::time::Duration;
5 :
6 : use super::safekeeper_reconciler::ScheduleRequest;
7 : use crate::heartbeater::SafekeeperState;
8 : use crate::persistence::{
9 : DatabaseError, SafekeeperTimelineOpKind, TimelinePendingOpPersistence, TimelinePersistence,
10 : };
11 : use crate::safekeeper::Safekeeper;
12 : use anyhow::Context;
13 : use http_utils::error::ApiError;
14 : use pageserver_api::controller_api::{SafekeeperDescribeResponse, SkSchedulingPolicy};
15 : use pageserver_api::models::{self, SafekeeperInfo, SafekeepersInfo, TimelineInfo};
16 : use safekeeper_api::membership::{MemberSet, SafekeeperId};
17 : use tokio::task::JoinSet;
18 : use tokio_util::sync::CancellationToken;
19 : use utils::id::{NodeId, TenantId, TimelineId};
20 : use utils::logging::SecretString;
21 :
22 : use super::Service;
23 :
24 : impl Service {
25 : /// Timeline creation on safekeepers
26 : ///
27 : /// Returns `Ok(left)` if the timeline has been created on a quorum of safekeepers,
28 : /// where `left` contains the list of safekeepers that didn't have a successful response.
29 : /// Assumes tenant lock is held while calling this function.
30 0 : pub(super) async fn tenant_timeline_create_safekeepers_quorum(
31 0 : &self,
32 0 : tenant_id: TenantId,
33 0 : timeline_id: TimelineId,
34 0 : pg_version: u32,
35 0 : timeline_persistence: &TimelinePersistence,
36 0 : ) -> Result<Vec<NodeId>, ApiError> {
37 0 : // If quorum is reached, return if we are outside of a specified timeout
38 0 : let jwt = self
39 0 : .config
40 0 : .safekeeper_jwt_token
41 0 : .clone()
42 0 : .map(SecretString::from);
43 0 : let mut joinset = JoinSet::new();
44 0 :
45 0 : let safekeepers = {
46 0 : let locked = self.inner.read().unwrap();
47 0 : locked.safekeepers.clone()
48 0 : };
49 0 :
50 0 : let mut members = Vec::new();
51 0 : for sk_id in timeline_persistence.sk_set.iter() {
52 0 : let sk_id = NodeId(*sk_id as u64);
53 0 : let Some(safekeeper) = safekeepers.get(&sk_id) else {
54 0 : return Err(ApiError::InternalServerError(anyhow::anyhow!(
55 0 : "couldn't find entry for safekeeper with id {sk_id}"
56 0 : )))?;
57 : };
58 0 : members.push(SafekeeperId {
59 0 : id: sk_id,
60 0 : host: safekeeper.skp.host.clone(),
61 0 : pg_port: safekeeper.skp.port as u16,
62 0 : });
63 : }
64 0 : let mset = MemberSet::new(members).map_err(ApiError::InternalServerError)?;
65 0 : let mconf = safekeeper_api::membership::Configuration::new(mset);
66 0 :
67 0 : let req = safekeeper_api::models::TimelineCreateRequest {
68 0 : commit_lsn: None,
69 0 : mconf,
70 0 : pg_version,
71 0 : start_lsn: timeline_persistence.start_lsn.0,
72 0 : system_id: None,
73 0 : tenant_id,
74 0 : timeline_id,
75 0 : wal_seg_size: None,
76 0 : };
77 : const SK_CREATE_TIMELINE_RECONCILE_TIMEOUT: Duration = Duration::from_secs(30);
78 0 : for sk in timeline_persistence.sk_set.iter() {
79 0 : let sk_id = NodeId(*sk as u64);
80 0 : let safekeepers = safekeepers.clone();
81 0 : let http_client = self.http_client.clone();
82 0 : let jwt = jwt.clone();
83 0 : let req = req.clone();
84 0 : joinset.spawn(async move {
85 0 : // Unwrap is fine as we already would have returned error above
86 0 : let sk_p = safekeepers.get(&sk_id).unwrap();
87 0 : let res = sk_p
88 0 : .with_client_retries(
89 0 : |client| {
90 0 : let req = req.clone();
91 0 : async move { client.create_timeline(&req).await }
92 0 : },
93 0 : &http_client,
94 0 : &jwt,
95 0 : 3,
96 0 : 3,
97 0 : SK_CREATE_TIMELINE_RECONCILE_TIMEOUT,
98 0 : &CancellationToken::new(),
99 0 : )
100 0 : .await;
101 0 : (sk_id, sk_p.skp.host.clone(), res)
102 0 : });
103 0 : }
104 : // After we have built the joinset, we now wait for the tasks to complete,
105 : // but with a specified timeout to make sure we return swiftly, either with
106 : // a failure or success.
107 0 : let reconcile_deadline = tokio::time::Instant::now() + SK_CREATE_TIMELINE_RECONCILE_TIMEOUT;
108 0 :
109 0 : // Wait until all tasks finish or timeout is hit, whichever occurs
110 0 : // first.
111 0 : let mut reconcile_results = Vec::new();
112 : loop {
113 0 : if let Ok(res) = tokio::time::timeout_at(reconcile_deadline, joinset.join_next()).await
114 : {
115 0 : let Some(res) = res else { break };
116 0 : match res {
117 0 : Ok(res) => {
118 0 : tracing::info!(
119 0 : "response from safekeeper id:{} at {}: {:?}",
120 : res.0,
121 : res.1,
122 : res.2
123 : );
124 0 : reconcile_results.push(res);
125 : }
126 0 : Err(join_err) => {
127 0 : tracing::info!("join_err for task in joinset: {join_err}");
128 : }
129 : }
130 : } else {
131 0 : tracing::info!(
132 0 : "timeout for creation call after {} responses",
133 0 : reconcile_results.len()
134 : );
135 0 : break;
136 : }
137 : }
138 :
139 : // Now check now if quorum was reached in reconcile_results.
140 0 : let total_result_count = reconcile_results.len();
141 0 : let remaining = reconcile_results
142 0 : .into_iter()
143 0 : .filter_map(|res| res.2.is_err().then_some(res.0))
144 0 : .collect::<Vec<_>>();
145 0 : tracing::info!(
146 0 : "Got {} non-successful responses from initial creation request of total {total_result_count} responses",
147 0 : remaining.len()
148 : );
149 0 : if remaining.len() >= 2 {
150 : // Failure
151 0 : return Err(ApiError::InternalServerError(anyhow::anyhow!(
152 0 : "not enough successful reconciliations to reach quorum, please retry: {} errored",
153 0 : remaining.len()
154 0 : )));
155 0 : }
156 0 :
157 0 : Ok(remaining)
158 0 : }
159 :
160 : /// Create timeline in controller database and on safekeepers.
161 : /// `timeline_info` is result of timeline creation on pageserver.
162 : ///
163 : /// All actions must be idempotent as the call is retried until success. It
164 : /// tries to create timeline in the db and on at least majority of
165 : /// safekeepers + queue creation for safekeepers which missed it in the db
166 : /// for infinite retries; after that, call returns Ok.
167 : ///
168 : /// The idea is that once this is reached as long as we have alive majority
169 : /// of safekeepers it is expected to get eventually operational as storcon
170 : /// will be able to seed timeline on nodes which missed creation by making
171 : /// pull_timeline from peers. On the other hand we don't want to fail
172 : /// timeline creation if one safekeeper is down.
173 0 : pub(super) async fn tenant_timeline_create_safekeepers(
174 0 : self: &Arc<Self>,
175 0 : tenant_id: TenantId,
176 0 : timeline_info: &TimelineInfo,
177 0 : create_mode: models::TimelineCreateRequestMode,
178 0 : ) -> Result<SafekeepersInfo, ApiError> {
179 0 : let timeline_id = timeline_info.timeline_id;
180 0 : let pg_version = timeline_info.pg_version * 10000;
181 : // Initially start_lsn is determined by last_record_lsn in pageserver
182 : // response as it does initdb. However, later we persist it and in sk
183 : // creation calls replace with the value from the timeline row if it
184 : // previously existed as on retries in theory endpoint might have
185 : // already written some data and advanced last_record_lsn, while we want
186 : // safekeepers to have consistent start_lsn.
187 0 : let start_lsn = match create_mode {
188 0 : models::TimelineCreateRequestMode::Bootstrap { .. } => timeline_info.last_record_lsn,
189 0 : models::TimelineCreateRequestMode::Branch { .. } => timeline_info.last_record_lsn,
190 : models::TimelineCreateRequestMode::ImportPgdata { .. } => {
191 0 : return Err(ApiError::InternalServerError(anyhow::anyhow!(
192 0 : "import pgdata doesn't specify the start lsn, aborting creation on safekeepers"
193 0 : )))?;
194 : }
195 : };
196 : // Choose initial set of safekeepers respecting affinity
197 0 : let sks = self.safekeepers_for_new_timeline().await?;
198 0 : let sks_persistence = sks.iter().map(|sk| sk.id.0 as i64).collect::<Vec<_>>();
199 0 : // Add timeline to db
200 0 : let mut timeline_persist = TimelinePersistence {
201 0 : tenant_id: tenant_id.to_string(),
202 0 : timeline_id: timeline_id.to_string(),
203 0 : start_lsn: start_lsn.into(),
204 0 : generation: 0,
205 0 : sk_set: sks_persistence.clone(),
206 0 : new_sk_set: None,
207 0 : cplane_notified_generation: 0,
208 0 : deleted_at: None,
209 0 : };
210 0 : let inserted = self
211 0 : .persistence
212 0 : .insert_timeline(timeline_persist.clone())
213 0 : .await?;
214 0 : if !inserted {
215 0 : if let Some(existent_persist) = self
216 0 : .persistence
217 0 : .get_timeline(tenant_id, timeline_id)
218 0 : .await?
219 0 : {
220 0 : // Replace with what we have in the db, to get stuff like the generation right.
221 0 : // We do still repeat the http calls to the safekeepers. After all, we could have
222 0 : // crashed right after the wrote to the DB.
223 0 : timeline_persist = existent_persist;
224 0 : } else {
225 0 : return Err(ApiError::InternalServerError(anyhow::anyhow!(
226 0 : "insertion said timeline already in db, but looking it up, it was gone"
227 0 : )));
228 : }
229 0 : }
230 : // Create the timeline on a quorum of safekeepers
231 0 : let remaining = self
232 0 : .tenant_timeline_create_safekeepers_quorum(
233 0 : tenant_id,
234 0 : timeline_id,
235 0 : pg_version,
236 0 : &timeline_persist,
237 0 : )
238 0 : .await?;
239 :
240 : // For the remaining safekeepers, take care of their reconciliation asynchronously
241 0 : for &remaining_id in remaining.iter() {
242 0 : let pending_op = TimelinePendingOpPersistence {
243 0 : tenant_id: tenant_id.to_string(),
244 0 : timeline_id: timeline_id.to_string(),
245 0 : generation: timeline_persist.generation,
246 0 : op_kind: crate::persistence::SafekeeperTimelineOpKind::Pull,
247 0 : sk_id: remaining_id.0 as i64,
248 0 : };
249 0 : tracing::info!("writing pending op for sk id {remaining_id}");
250 0 : self.persistence.insert_pending_op(pending_op).await?;
251 : }
252 0 : if !remaining.is_empty() {
253 0 : let mut locked = self.inner.write().unwrap();
254 0 : for remaining_id in remaining {
255 0 : let Some(sk) = locked.safekeepers.get(&remaining_id) else {
256 0 : return Err(ApiError::InternalServerError(anyhow::anyhow!(
257 0 : "Couldn't find safekeeper with id {remaining_id}"
258 0 : )));
259 : };
260 0 : let Ok(host_list) = sks
261 0 : .iter()
262 0 : .map(|sk| {
263 0 : Ok((
264 0 : sk.id,
265 0 : locked
266 0 : .safekeepers
267 0 : .get(&sk.id)
268 0 : .ok_or_else(|| {
269 0 : ApiError::InternalServerError(anyhow::anyhow!(
270 0 : "Couldn't find safekeeper with id {} to pull from",
271 0 : sk.id
272 0 : ))
273 0 : })?
274 0 : .base_url(),
275 : ))
276 0 : })
277 0 : .collect::<Result<_, ApiError>>()
278 : else {
279 0 : continue;
280 : };
281 0 : let req = ScheduleRequest {
282 0 : safekeeper: Box::new(sk.clone()),
283 0 : host_list,
284 0 : tenant_id,
285 0 : timeline_id: Some(timeline_id),
286 0 : generation: timeline_persist.generation as u32,
287 0 : kind: crate::persistence::SafekeeperTimelineOpKind::Pull,
288 0 : };
289 0 : locked.safekeeper_reconcilers.schedule_request(self, req);
290 : }
291 0 : }
292 :
293 0 : Ok(SafekeepersInfo {
294 0 : generation: timeline_persist.generation as u32,
295 0 : safekeepers: sks,
296 0 : tenant_id,
297 0 : timeline_id,
298 0 : })
299 0 : }
300 : /// Perform timeline deletion on safekeepers. Will return success: we persist the deletion into the reconciler.
301 0 : pub(super) async fn tenant_timeline_delete_safekeepers(
302 0 : self: &Arc<Self>,
303 0 : tenant_id: TenantId,
304 0 : timeline_id: TimelineId,
305 0 : ) -> Result<(), ApiError> {
306 0 : let tl = self
307 0 : .persistence
308 0 : .get_timeline(tenant_id, timeline_id)
309 0 : .await?;
310 0 : let Some(tl) = tl else {
311 0 : tracing::info!(
312 0 : "timeline {tenant_id}/{timeline_id} doesn't exist in timelines table, no deletions on safekeepers needed"
313 : );
314 0 : return Ok(());
315 : };
316 0 : let all_sks = tl
317 0 : .new_sk_set
318 0 : .iter()
319 0 : .flat_map(|sks| {
320 0 : sks.iter()
321 0 : .map(|sk| (*sk, SafekeeperTimelineOpKind::Exclude))
322 0 : })
323 0 : .chain(
324 0 : tl.sk_set
325 0 : .iter()
326 0 : .map(|v| (*v, SafekeeperTimelineOpKind::Delete)),
327 0 : )
328 0 : .collect::<HashMap<_, _>>();
329 0 :
330 0 : // Schedule reconciliations
331 0 : {
332 0 : let mut locked = self.inner.write().unwrap();
333 0 : for (sk_id, kind) in all_sks {
334 0 : let sk_id = NodeId(sk_id as u64);
335 0 : let Some(sk) = locked.safekeepers.get(&sk_id) else {
336 0 : return Err(ApiError::InternalServerError(anyhow::anyhow!(
337 0 : "Couldn't find safekeeper with id {sk_id}"
338 0 : )));
339 : };
340 :
341 0 : let req = ScheduleRequest {
342 0 : safekeeper: Box::new(sk.clone()),
343 0 : // we don't use this for this kind, put a dummy value
344 0 : host_list: Vec::new(),
345 0 : tenant_id,
346 0 : timeline_id: Some(timeline_id),
347 0 : generation: tl.generation as u32,
348 0 : kind,
349 0 : };
350 0 : locked.safekeeper_reconcilers.schedule_request(self, req);
351 : }
352 : }
353 0 : Ok(())
354 0 : }
355 :
356 : /// Perform tenant deletion on safekeepers.
357 0 : pub(super) async fn tenant_delete_safekeepers(
358 0 : self: &Arc<Self>,
359 0 : tenant_id: TenantId,
360 0 : ) -> Result<(), ApiError> {
361 0 : let timeline_list = self
362 0 : .persistence
363 0 : .list_timelines_for_tenant(tenant_id)
364 0 : .await?;
365 :
366 0 : if timeline_list.is_empty() {
367 : // Early exit: the tenant is either empty or not migrated to the storcon yet
368 0 : tracing::info!("Skipping tenant delete as the timeline doesn't exist in db");
369 0 : return Ok(());
370 0 : }
371 :
372 0 : let timeline_list = timeline_list
373 0 : .into_iter()
374 0 : .map(|timeline| {
375 0 : let timeline_id = TimelineId::from_str(&timeline.timeline_id)
376 0 : .context("timeline id loaded from db")
377 0 : .map_err(ApiError::InternalServerError)?;
378 0 : Ok((timeline_id, timeline))
379 0 : })
380 0 : .collect::<Result<Vec<_>, ApiError>>()?;
381 :
382 : // Remove pending ops from db.
383 : // We cancel them in a later iteration once we hold the state lock.
384 0 : for (timeline_id, _timeline) in timeline_list.iter() {
385 0 : self.persistence
386 0 : .remove_pending_ops_for_timeline(tenant_id, Some(*timeline_id))
387 0 : .await?;
388 : }
389 :
390 0 : let mut locked = self.inner.write().unwrap();
391 0 :
392 0 : // The list of safekeepers that have any of the timelines
393 0 : let mut sk_list = HashSet::new();
394 :
395 : // List all pending ops for all timelines, cancel them
396 0 : for (timeline_id, timeline) in timeline_list.iter() {
397 0 : let sk_iter = timeline
398 0 : .sk_set
399 0 : .iter()
400 0 : .chain(timeline.new_sk_set.iter().flatten())
401 0 : .map(|id| NodeId(*id as u64));
402 0 : for sk_id in sk_iter.clone() {
403 0 : locked
404 0 : .safekeeper_reconcilers
405 0 : .cancel_reconciles_for_timeline(sk_id, tenant_id, Some(*timeline_id));
406 0 : }
407 0 : sk_list.extend(sk_iter);
408 : }
409 :
410 : // unwrap is safe: we return above for an empty timeline list
411 0 : let max_generation = timeline_list
412 0 : .iter()
413 0 : .map(|(_tl_id, tl)| tl.generation as u32)
414 0 : .max()
415 0 : .unwrap();
416 :
417 0 : for sk_id in sk_list {
418 0 : let Some(safekeeper) = locked.safekeepers.get(&sk_id) else {
419 0 : tracing::warn!("Couldn't find safekeeper with id {sk_id}");
420 0 : continue;
421 : };
422 : // Add pending op for tenant deletion
423 0 : let req = ScheduleRequest {
424 0 : generation: max_generation,
425 0 : host_list: Vec::new(),
426 0 : kind: SafekeeperTimelineOpKind::Delete,
427 0 : safekeeper: Box::new(safekeeper.clone()),
428 0 : tenant_id,
429 0 : timeline_id: None,
430 0 : };
431 0 : locked.safekeeper_reconcilers.schedule_request(self, req);
432 : }
433 0 : Ok(())
434 0 : }
435 :
436 : /// Choose safekeepers for the new timeline: 3 in different azs.
437 0 : pub(crate) async fn safekeepers_for_new_timeline(
438 0 : &self,
439 0 : ) -> Result<Vec<SafekeeperInfo>, ApiError> {
440 0 : // Number of safekeepers in different AZs we are looking for
441 0 : let wanted_count = 3;
442 0 : let mut all_safekeepers = {
443 0 : let locked = self.inner.read().unwrap();
444 0 : locked
445 0 : .safekeepers
446 0 : .iter()
447 0 : .filter_map(|sk| {
448 0 : if sk.1.scheduling_policy() != SkSchedulingPolicy::Active {
449 : // If we don't want to schedule stuff onto the safekeeper, respect that.
450 0 : return None;
451 0 : }
452 0 : let utilization_opt = if let SafekeeperState::Available {
453 : last_seen_at: _,
454 0 : utilization,
455 0 : } = sk.1.availability()
456 : {
457 0 : Some(utilization)
458 : } else {
459 : // non-available safekeepers still get a chance for new timelines,
460 : // but put them last in the list.
461 0 : None
462 : };
463 0 : let info = SafekeeperInfo {
464 0 : hostname: sk.1.skp.host.clone(),
465 0 : id: NodeId(sk.1.skp.id as u64),
466 0 : };
467 0 : Some((utilization_opt, info, sk.1.skp.availability_zone_id.clone()))
468 0 : })
469 0 : .collect::<Vec<_>>()
470 0 : };
471 0 : all_safekeepers.sort_by_key(|sk| {
472 0 : (
473 0 : sk.0.as_ref()
474 0 : .map(|ut| ut.timeline_count)
475 0 : .unwrap_or(u64::MAX),
476 0 : // Use the id to decide on equal scores for reliability
477 0 : sk.1.id.0,
478 0 : )
479 0 : });
480 0 : let mut sks = Vec::new();
481 0 : let mut azs = HashSet::new();
482 0 : for (_sk_util, sk_info, az_id) in all_safekeepers.iter() {
483 0 : if !azs.insert(az_id) {
484 0 : continue;
485 0 : }
486 0 : sks.push(sk_info.clone());
487 0 : if sks.len() == wanted_count {
488 0 : break;
489 0 : }
490 : }
491 0 : if sks.len() == wanted_count {
492 0 : Ok(sks)
493 : } else {
494 0 : Err(ApiError::InternalServerError(anyhow::anyhow!(
495 0 : "couldn't find {wanted_count} safekeepers in different AZs for new timeline (found: {}, total active: {})",
496 0 : sks.len(),
497 0 : all_safekeepers.len(),
498 0 : )))
499 : }
500 0 : }
501 :
502 0 : pub(crate) async fn safekeepers_list(
503 0 : &self,
504 0 : ) -> Result<Vec<SafekeeperDescribeResponse>, DatabaseError> {
505 0 : let locked = self.inner.read().unwrap();
506 0 : let mut list = locked
507 0 : .safekeepers
508 0 : .iter()
509 0 : .map(|sk| sk.1.describe_response())
510 0 : .collect::<Result<Vec<_>, _>>()?;
511 0 : list.sort_by_key(|v| v.id);
512 0 : Ok(list)
513 0 : }
514 :
515 0 : pub(crate) async fn get_safekeeper(
516 0 : &self,
517 0 : id: i64,
518 0 : ) -> Result<SafekeeperDescribeResponse, DatabaseError> {
519 0 : let locked = self.inner.read().unwrap();
520 0 : let sk = locked
521 0 : .safekeepers
522 0 : .get(&NodeId(id as u64))
523 0 : .ok_or(diesel::result::Error::NotFound)?;
524 0 : sk.describe_response()
525 0 : }
526 :
527 0 : pub(crate) async fn upsert_safekeeper(
528 0 : &self,
529 0 : record: crate::persistence::SafekeeperUpsert,
530 0 : ) -> Result<(), ApiError> {
531 0 : let node_id = NodeId(record.id as u64);
532 0 : let use_https = self.config.use_https_safekeeper_api;
533 0 :
534 0 : if use_https && record.https_port.is_none() {
535 0 : return Err(ApiError::PreconditionFailed(
536 0 : format!(
537 0 : "cannot upsert safekeeper {node_id}: \
538 0 : https is enabled, but https port is not specified"
539 0 : )
540 0 : .into(),
541 0 : ));
542 0 : }
543 0 :
544 0 : self.persistence.safekeeper_upsert(record.clone()).await?;
545 : {
546 0 : let mut locked = self.inner.write().unwrap();
547 0 : let mut safekeepers = (*locked.safekeepers).clone();
548 0 : match safekeepers.entry(node_id) {
549 0 : std::collections::hash_map::Entry::Occupied(mut entry) => entry
550 0 : .get_mut()
551 0 : .update_from_record(record)
552 0 : .expect("all preconditions should be checked before upsert to database"),
553 0 : std::collections::hash_map::Entry::Vacant(entry) => {
554 0 : entry.insert(
555 0 : Safekeeper::from_persistence(
556 0 : crate::persistence::SafekeeperPersistence::from_upsert(
557 0 : record,
558 0 : SkSchedulingPolicy::Pause,
559 0 : ),
560 0 : CancellationToken::new(),
561 0 : use_https,
562 0 : )
563 0 : .expect("all preconditions should be checked before upsert to database"),
564 0 : );
565 0 : }
566 : }
567 0 : locked.safekeepers = Arc::new(safekeepers);
568 0 : }
569 0 : Ok(())
570 0 : }
571 :
572 0 : pub(crate) async fn set_safekeeper_scheduling_policy(
573 0 : &self,
574 0 : id: i64,
575 0 : scheduling_policy: SkSchedulingPolicy,
576 0 : ) -> Result<(), DatabaseError> {
577 0 : self.persistence
578 0 : .set_safekeeper_scheduling_policy(id, scheduling_policy)
579 0 : .await?;
580 0 : let node_id = NodeId(id as u64);
581 0 : // After the change has been persisted successfully, update the in-memory state
582 0 : {
583 0 : let mut locked = self.inner.write().unwrap();
584 0 : let mut safekeepers = (*locked.safekeepers).clone();
585 0 : let sk = safekeepers
586 0 : .get_mut(&node_id)
587 0 : .ok_or(DatabaseError::Logical("Not found".to_string()))?;
588 0 : sk.set_scheduling_policy(scheduling_policy);
589 0 :
590 0 : match scheduling_policy {
591 0 : SkSchedulingPolicy::Active => (),
592 0 : SkSchedulingPolicy::Decomissioned | SkSchedulingPolicy::Pause => {
593 0 : locked.safekeeper_reconcilers.cancel_safekeeper(node_id);
594 0 : }
595 : }
596 :
597 0 : locked.safekeepers = Arc::new(safekeepers);
598 0 : }
599 0 : Ok(())
600 0 : }
601 : }
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