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pageserver: return 429 on timeline creation in progress #7225

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merged 2 commits into from
Mar 26, 2024
Merged

pageserver: return 429 on timeline creation in progress #7225

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269513a
pageserver: return 429 on timeline creation in progress
jcsp Mar 25, 2024
f51adfc
update test for 429
jcsp Mar 25, 2024
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10 changes: 8 additions & 2 deletions pageserver/src/http/openapi_spec.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -1038,7 +1038,7 @@ paths:
format: hex
responses:
"201":
description: TimelineInfo
description: Timeline was created, or already existed with matching parameters
content:
application/json:
schema:
Expand Down Expand Up @@ -1068,11 +1068,17 @@ paths:
schema:
$ref: "#/components/schemas/Error"
"409":
description: Timeline already exists, creation skipped
description: Timeline already exists, with different parameters. Creation cannot proceed.
content:
application/json:
schema:
$ref: "#/components/schemas/ConflictError"
"429":
description: A creation request was sent for the same Timeline Id while a creation was already in progress. Back off and retry.
content:
application/json:
schema:
$ref: "#/components/schemas/Error"
"500":
description: Generic operation error
content:
Expand Down
11 changes: 7 additions & 4 deletions pageserver/src/http/routes.rs
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Expand Up @@ -535,10 +535,13 @@ async fn timeline_create_handler(
HttpErrorBody::from_msg("Tenant shutting down".to_string()),
)
}
Err(
e @ tenant::CreateTimelineError::Conflict
| e @ tenant::CreateTimelineError::AlreadyCreating,
) => json_response(StatusCode::CONFLICT, HttpErrorBody::from_msg(e.to_string())),
Err(e @ tenant::CreateTimelineError::Conflict) => {
json_response(StatusCode::CONFLICT, HttpErrorBody::from_msg(e.to_string()))
}
Err(e @ tenant::CreateTimelineError::AlreadyCreating) => json_response(
StatusCode::TOO_MANY_REQUESTS,
HttpErrorBody::from_msg(e.to_string()),
),
Err(tenant::CreateTimelineError::AncestorLsn(err)) => json_response(
StatusCode::NOT_ACCEPTABLE,
HttpErrorBody::from_msg(format!("{err:#}")),
Expand Down
3 changes: 3 additions & 0 deletions test_runner/regress/test_tenants.py
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Expand Up @@ -389,6 +389,9 @@ def create_bg(delay_ms):
if e.status_code == 409:
log.info(f"delay_ms={delay_ms} 409")
pass
elif e.status_code == 429:
log.info(f"delay_ms={delay_ms} 429")
pass
elif e.status_code == 400:
if "is less than existing" in e.message:
# We send creation requests very close together in time: it is expected that these
Expand Down