Sadanand Shenoy created HDDS-7689:
-------------------------------------
Summary: SnapshotChainManager fails to successfully load snapshots
on restart.
Key: HDDS-7689
URL: https://issues.apache.org/jira/browse/HDDS-7689
Project: Apache Ozone
Issue Type: Bug
Components: Ozone Manager
Reporter: Sadanand Shenoy
If snapshotChainManager is enabled , then on restart it tries to load up the
snapshots from the rocksdb and gives the following error.
{code:java}
Error: org.apache.hadoop.ozone.freon.TestOMSnapshotDAG.testDAGReconstruction
Time elapsed: 22.661 s <<< ERROR!
3170java.io.IOException: Snapshot Chain corruption: previous snapshotID given
but no associated snapshot found in snapshot chain: SnapshotID
2454ada9-2134-489f-8b97-d1ecadc80b74
3171 at
org.apache.hadoop.ozone.om.SnapshotChainManager.addSnapshotGlobal(SnapshotChainManager.java:81)
3172 at
org.apache.hadoop.ozone.om.SnapshotChainManager.addSnapshot(SnapshotChainManager.java:274)
3173 at
org.apache.hadoop.ozone.om.SnapshotChainManager.loadFromSnapshotInfoTable(SnapshotChainManager.java:265)
3174 at
org.apache.hadoop.ozone.om.SnapshotChainManager.<init>(SnapshotChainManager.java:61)
3175 at
org.apache.hadoop.ozone.om.OzoneManager.instantiateServices(OzoneManager.java:731)
3176 at
org.apache.hadoop.ozone.om.OzoneManager.restart(OzoneManager.java:1575)
3177 at
org.apache.hadoop.ozone.MiniOzoneClusterImpl.restartOzoneManager(MiniOzoneClusterImpl.java:362)
3178 at
org.apache.hadoop.ozone.freon.TestOMSnapshotDAG.testDAGReconstruction(TestOMSnapshotDAG.java:257)
{code}
Github CI run :
[https://github.com/apache/ozone/actions/runs/3688005945/jobs/6264032149#step:5:3171]
The order in which rocksdb loads up the in memory snapshot chain causes this
issue
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