# Pbm restore failed, and says missing collection

**URL:** <https://forums.percona.com/t/pbm-restore-failed-and-says-missing-collection/22120>\
**Category:** Percona Backup for MongoDB\
**Created:** [May 18, 2023, 5:10am UTC](https://forums.percona.com/t/pbm-restore-failed-and-says-missing-collection/22120 "2023-05-18T05:10:10Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![Max\_Chen](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/max_chen/32/10212_2.png) [@Max\_Chen](https://forums.percona.com/u/Max_Chen)\
**Post date:** [May 18, 2023, 5:10am UTC](https://forums.percona.com/t/pbm-restore-failed-and-says-missing-collection/22120/1 "2023-05-18T05:10:10Z")

</div>

pbm 2.1.0  
when restore get the following error, but when I check, the collection config.image\_collection is exists.  
Any one know the reason?  
Or PBM support to exclude it when restore

```auto
Waiting to finish.................Error: operation failed with: replay chunk 1684373477.1684373857: apply oplog for chunk: applying an entry: op: {"Timestamp":{"T":1684373543,"I":109},"Term":4,"Hash":null,"Version":2,"Operation":"d","Namespace":"config.image_collection","Object":[{"Key":"_id","Value":[{"Key":"id","Value":{"Subtype":4,"Data":"bHYvIV15QB+4gqO7B8eWbg=="}},{"Key":"uid","Value":{"Subtype":0,"Data":"UeumqUwdLsJc+cN3Ttbz8oP13P7COat20SkZAY40CyY="}}]}],"Query":null,"UI":{"Subtype":4,"Data":"VEtKAE2XTIOppg3OV3IiOw=="},"LSID":null,"TxnNumber":null,"PrevOpTime":null} | merr <nil>: applyOps: (NamespaceNotFound) Failed to apply operation due to missing collection (544b4a00-4d97-4c83-a9a6-0dce5772223b): { ts: Timestamp(1684373543, 109), t: 4, h: null, v: 2, op: "d", ns: "config.image_collection", o: { _id: { id: UUID("6c762f21-5d79-401f-b882-a3bb07c7966e"), uid: BinData(0, 51EBA6A94C1D2EC25CF9C3774ED6F3F283F5DCFEC239AB76D12919018E340B26) } }, ui: UUID("544b4a00-4d97-4c83-a9a6-0dce5772223b"), wall: new Date(0) }

```

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<div class="post-metadata">

**Author:** ![Dmytro\_Zghoba](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/dmytro_zghoba/32/4721_2.png) [@Dmytro\_Zghoba](https://forums.percona.com/u/Dmytro_Zghoba)\
**Post date:** [May 18, 2023, 5:39am UTC](https://forums.percona.com/t/pbm-restore-failed-and-says-missing-collection/22120/2 "2023-05-18T05:39:54Z")

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Hi @Max_Chen ,

What is the MongoDB version? Is it full logical restore?

Even if there is `image_collection` collection, it may not be the same. MongoDB uses somewhere namespace and somewhere UUID to identify a collection.

Could you please check UUID of the collection?

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<div class="post-metadata">

**Author:** ![Dmytro\_Zghoba](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/dmytro_zghoba/32/4721_2.png) [@Dmytro\_Zghoba](https://forums.percona.com/u/Dmytro_Zghoba)\
**Post date:** [May 18, 2023, 5:40am UTC](https://forums.percona.com/t/pbm-restore-failed-and-says-missing-collection/22120/3 "2023-05-18T05:40:20Z")

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go to the mongod node and run `db.getSiblingDB('config').getCollectionInfos({name:'image_collection'})`

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<div class="post-metadata">

**Author:** ![Max\_Chen](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/max_chen/32/10212_2.png) [@Max\_Chen](https://forums.percona.com/u/Max_Chen)\
**Post date:** [May 18, 2023, 5:51am UTC](https://forums.percona.com/t/pbm-restore-failed-and-says-missing-collection/22120/4 "2023-05-18T05:51:06Z")

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> [@Dmytro\_Zghoba](#):
>
> db.getSiblingDB(‘config’).getCollectionInfos({name:‘image\_collection’})

@Dmytro_Zghoba

MongoDB server version: 6.0.3

```auto
rs0:PRIMARY> db.getSiblingDB('config').getCollectionInfos({name:'image_collection'})
[
	{
		"name" : "image_collection",
		"type" : "collection",
		"options" : {
			
		},
		"info" : {
			"readOnly" : false,
			"uuid" : UUID("1048e175-fc9e-45df-ab84-8f5f1a77efec")
		},
		"idIndex" : {
			"v" : 2,
			"key" : {
				"_id" : 1
			},
			"name" : "_id_"
		}
	}
]

```

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<div class="post-metadata">

**Author:** ![Dmytro\_Zghoba](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/dmytro_zghoba/32/4721_2.png) [@Dmytro\_Zghoba](https://forums.percona.com/u/Dmytro_Zghoba)\
**Post date:** [May 18, 2023, 6:15am UTC](https://forums.percona.com/t/pbm-restore-failed-and-says-missing-collection/22120/5 "2023-05-18T06:15:54Z")

</div>

the error contains `UUID("544b4a00-4d97-4c83-a9a6-0dce5772223b")`. But on the node, the collection has `UUID("1048e175-fc9e-45df-ab84-8f5f1a77efec")`.

Could you please create a ticket in [Percona JIRA](https://jira.percona.com/secure/Dashboard.jspa)?

just for now: the Op (`db.image_collection.deleteOne({ ... })`) has failed. It is part of the `applyOps` command, which uses UUID. During restore, the collection is dropped and created with a different UUID.

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<div class="post-metadata">

**Author:** ![Dmytro\_Zghoba](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/dmytro_zghoba/32/4721_2.png) [@Dmytro\_Zghoba](https://forums.percona.com/u/Dmytro_Zghoba)\
**Post date:** [May 18, 2023, 6:21am UTC](https://forums.percona.com/t/pbm-restore-failed-and-says-missing-collection/22120/6 "2023-05-18T06:21:24Z")

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No way to exclude the collection like `--exclude="config.image_collection"`. But you can try to run [Selective Restore](https://docs.percona.com/percona-backup-mongodb/usage/restore.html#restore-a-database) where you can specify comma separated list of dbs/collections to restore.

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<div class="post-metadata">

**Author:** ![Max\_Chen](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/max_chen/32/10212_2.png) [@Max\_Chen](https://forums.percona.com/u/Max_Chen)\
**Post date:** [May 18, 2023, 6:52am UTC](https://forums.percona.com/t/pbm-restore-failed-and-says-missing-collection/22120/7 "2023-05-18T06:52:52Z")

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[https://jira.percona.com/browse/PBM-1123](https://jira.percona.com/browse/PBM-1123)

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<div class="post-metadata">

**Author:** ![sohahm](https://avatars.discourse-cdn.com/v4/letter/s/bc79bd/32.png) [@sohahm](https://forums.percona.com/u/sohahm)\
**Post date:** [June 1, 2023, 5:27pm UTC](https://forums.percona.com/t/pbm-restore-failed-and-says-missing-collection/22120/8 "2023-06-01T17:27:07Z")

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Does it mean the cluster restore is failing or it is safe to ignore this error until it is fixed?

Thanks.

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<div class="post-metadata">

**Author:** ![Dmytro\_Zghoba](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/dmytro_zghoba/32/4721_2.png) [@Dmytro\_Zghoba](https://forums.percona.com/u/Dmytro_Zghoba)\
**Post date:** [June 2, 2023, 5:50am UTC](https://forums.percona.com/t/pbm-restore-failed-and-says-missing-collection/22120/9 "2023-06-02T05:50:30Z")

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hi @sohahm,

in short, if `pbm status` shows failed to restore then the cluster is in an inconsistency state - failed.