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Time monotonicity violation after restore a logical backup in a new cluster

Description

If you restore a backup into a new k8s cluster you will get Time monotonicity violation errors on cfg servers and mongos and the pods will start to restart:

 

Time monotonicity violation error:

{"t":{"$date":"2025-04-02T18:12:27.649+00:00"},"s":"E", "c":"ASSERT", "id":4457000, "ctx":"CatalogCache-3","msg":"Tripwire assertion","attr":{"error":{"code":6493100, "codeName":"Location6493100","errmsg":"Time monotonicity violation: lookup time { chunkVersion: { e: ObjectId('67ed72e8739da6f4f6c648d6'), t: Timestamp(1743614696, 13), v: Timestamp(1, 0) }, forcedRefreshSequenceNum: 9, epochDisambiguatingSequenceNum: 340 } which is less than the earliest expected timeInStore { chunkVersion: { e: Object Id('67ed778e6982c61201c9628f'), t: Timestamp(1743615886, 10), v: Timestamp(1, 0) }, forcedRefreshSequenceNum: 9, epochDisambiguatingSequenceNum: 8 }."},"location":"{file Name:\"src/mongo/util/read_through_cache.h\", line:549, functionName:\"operator()\"}"}}

 

zelmar@LAPTOP-MD0FVN06:~/CS0053759/CS0053759_oldcluster-dump/cluster-dump/dbaas-mongodb-rs-mongodb$ kubectl get pods NAME READY STATUS RESTARTS AGE percona-server-mongodb-operator-7f7764cd57-rzmjq 1/1 Running 0 84m my-cluster-name-rs0-1 2/2 Running 0 81m my-cluster-name-rs0-0 2/2 Running 1 (79m ago) 84m my-cluster-name-rs0-2 2/2 Running 0 79m my-cluster-name-cfg-0 2/2 Running 7 (9m36s ago) 84m my-cluster-name-cfg-1 2/2 Running 7 (7m23s ago) 81m my-cluster-name-mongos-0 1/1 Running 9 (2m44s ago) 59m my-cluster-name-cfg-2 2/2 Running 5 (2m17s ago) 79m my-cluster-name-mongos-1 1/1 Running 9 (2m19s ago) 58m my-cluster-name-mongos-2 1/1 Running 9 (2m9s ago) 58m

 

To reproduce:

  1. Deploy a cluster (Operator 1.19.1 and percona-server-mongodb:7.0.16-10)

  2. Insert some data

  3. Take a backup

  4. Deploy a new cluster

  5. Restore the backup.

Environment

None

AFFECTED CS IDs

CS0053759

Details

Assignee

Reporter

Needs QA

Yes

Affects versions

Priority

Smart Checklist

Created 3 days ago
Updated 2 days ago

Activity