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Assigned Teams:

Catalog and Routing
Backwards Compatibility:
Fully Compatible
Operating System:
ALL
Backport Requested:

v8.0, v7.0, v6.0
Steps To Reproduce:

Hide

db.foo1.insert({});
db.foo2.insert({});
db.foo3.insert({});

const cursor = db.getSiblingDB("admin").aggregate(
[{
$_internalAllCollectionStats:
{stats: {storageStats: {}, queryExecStats: {}, latencyStats: {}}}
}],
{cursor: {batchSize: 2}});

cursor.next();
db.foo3.drop();
cursor.itcount();

Show
db.foo1.insert({}); db.foo2.insert({}); db.foo3.insert({}); const cursor = db.getSiblingDB("admin").aggregate( [{ $_internalAllCollectionStats: {stats: {storageStats: {}, queryExecStats: {}, latencyStats: {}}} }], {cursor: {batchSize: 2}}); cursor.next(); db.foo3.drop(); cursor.itcount();
Sprint:
CAR Team 2024-05-27
Linked BF Score:
0
Confidence Status:
None
Work Order:
3

DocumentSourceInternalAllCollectionStats first retrieves a list of existing collections from the catalog and next it iterates over them to get the collection stats for each one. If a collection that gets put in the list is dropped before the stage iterates over it, then the whole aggregation will fail with NamespaceNotFound.

Instead, this no longer existent collection should just be skipped.

is caused by

SERVER-67891 Implement basic structure of $shardedDataDistribution stage