[
https://issues.apache.org/jira/browse/HDDS-14697?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Siyao Meng resolved HDDS-14697.
-------------------------------
Assignee: Siyao Meng
Resolution: Duplicate
> Data integrity is missing for the snapshot after de-commissioning Leader OM
> node
> --------------------------------------------------------------------------------
>
> Key: HDDS-14697
> URL: https://issues.apache.org/jira/browse/HDDS-14697
> Project: Apache Ozone
> Issue Type: Bug
> Components: Ozone Manager
> Affects Versions: 2.0.0
> Reporter: Kodali Bhavya Sree
> Assignee: Siyao Meng
> Priority: Critical
>
> Data integrity is missing for the snapshot after de-commissioning Leader OM
> node. Below are the steps followed:
> {code:java}
> 1. Create a volume and bucket with different params. Generate keys over the
> bucket.
> 2. Calculate checksum of all the files.
> 3. Create two snapshot, delete one of them
> 4. Decommission a leader OM node
> 5. Validate the checksums of the file.
> 6. Create a snapshots after decommissioning and calculate snapdiff with the
> snapshot (created) before decommissioning{code}
> Checksum validation of snapshots after decommissioning is failing.
> Failing after below step → Copying all objects under snapshot {{snap-j0vp8}}
> of that bucket into
> {code:java}
> ozone fs -get
> ofs://ozone1771736427/vol-test-workload-om-decommission-recommission-1771752191/buck-test-workload-om-decommission-recommission-1771752191/.snapshot/snap-j0vp8/*
> /test_master_node_decommissioning_om_workload/workload_local1771752225{code}
> Below Null pointer exception is seen
> {code:java}
> 26/02/22 01:46:53 INFO retry.RetryInvocationHandler:
> com.google.protobuf.ServiceException:
> org.apache.hadoop.ipc_.RemoteException(java.lang.IllegalStateException):
> java.lang.NullPointerException: Cannot invoke
> "org.apache.hadoop.ozone.om.snapshot.OmSnapshotLocalDataManager$SnapshotVersionsMeta.getVersion()"
> because the return value of
> "org.apache.hadoop.ozone.om.snapshot.OmSnapshotLocalDataManager$ReadableOmSnapshotLocalDataMetaProvider.getMeta()"
> is nul{code}
>
> Where definition of getMeta() is below:
> {code:java}
> public synchronized SnapshotVersionsMeta getMeta() throws IOException {
> if (closed) {
> throw new IOException("Resource has already been closed.");
> }
> return meta;
> }
> {code}
>
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
