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Posted to issues@ozone.apache.org by "Arpit Agarwal (Jira)" <ji...@apache.org> on 2023/05/30 18:38:00 UTC
[jira] [Reopened] (HDDS-7689) SnapshotChainManager fails to successfully load snapshots on restart.
[ https://issues.apache.org/jira/browse/HDDS-7689?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Arpit Agarwal reopened HDDS-7689:
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> 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: Sub-task
> Components: Ozone Manager
> Reporter: Sadanand Shenoy
> Priority: Major
>
> 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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