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feat: persistent gc blocking (#8600)

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Currently, we do not have facilities to persistently block GC on a
tenant for whatever reason. We could do a tenant configuration update,
but that is risky for generation numbers and would also be transient.
Introduce a `gc_block` facility in the tenant, which manages per
timeline blocking reasons.

Additionally, add HTTP endpoints for enabling/disabling manual gc
blocking for a specific timeline. For debugging, individual tenant
status now includes a similar string representation logged when GC is
skipped.

Cc: #6994
This commit is contained in:
Joonas Koivunen
2024-08-06 12:09:56 +03:00
committed by John Spray
parent c89ee814e1
commit b2bc5795be
11 changed files with 718 additions and 0 deletions
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16
test_runner/fixtures/pageserver/http.py
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@@ -556,6 +556,22 @@ class PageserverHttpClient(requests.Session, MetricsGetter):
assert isinstance(res_json, dict)
return res_json
def timeline_block_gc(self, tenant_id: Union[TenantId, TenantShardId], timeline_id: TimelineId):
res = self.post(
f"http://localhost:{self.port}/v1/tenant/{tenant_id}/timeline/{timeline_id}/block_gc",
)
log.info(f"Got GC request response code: {res.status_code}")
self.verbose_error(res)
def timeline_unblock_gc(
self, tenant_id: Union[TenantId, TenantShardId], timeline_id: TimelineId
):
res = self.post(
f"http://localhost:{self.port}/v1/tenant/{tenant_id}/timeline/{timeline_id}/unblock_gc",
)
log.info(f"Got GC request response code: {res.status_code}")
self.verbose_error(res)
def timeline_compact(
self,
tenant_id: Union[TenantId, TenantShardId],