Gargi Jaiswal created HDDS-13023:
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Summary: [DiskBalancer] Fix DiskBalancer failure due to checksum
mismatch during container import
Key: HDDS-13023
URL: https://issues.apache.org/jira/browse/HDDS-13023
Project: Apache Ozone
Issue Type: Sub-task
Reporter: Gargi Jaiswal
Assignee: Gargi Jaiswal
After the changes introduced in
[HDDS-12233][https://github.com/apache/ozone/pull/7934], DiskBalancer is
failing to move containers due to a checksum mismatch error during container
import.
The root cause is a regression introduced in the
*{{KeyValueContainer#importContainerData}}* method. The method was modified to
call *{{KeyValueContainerUtil.parseKVContainerData(...)}} before* setting the
container state and metadata (which includes the expected checksum).
Since the checksum is not yet populated in {{containerData}} at the time of
parsing, the call to {{ContainerUtils.verifyChecksum(...)}} inside
{{parseKVContainerData}} fails with the following error:
```2025-04-10 15:58:41 2025-04-10 10:28:41,115 [DiskBalancerService#0] WARN
diskbalancer.DiskBalancerService: Failed to move container
KeyValueContainerData #8 (CLOSED, non-empty, ri=0,
origin=[dn_b916c228-6ce7-4f89-8de3-b29b1d967af1,
pipeline_efeea169-e8f7-43fb-9003-270fa058adb2]): {} 2025-04-10 15:58:41
org.apache.hadoop.hdds.scm.container.common.helpers.StorageContainerException:
Container checksum error for ContainerID: 8. 2025-04-10 15:58:41 Stored
Checksum: 2025-04-10 15:58:41 Expected Checksum:
7a0ec671d9f43c8d6dd303961776f383ce767bfa2e365de7119d1c6c7d2c1359 2025-04-10
15:58:41 at
org.apache.hadoop.ozone.container.common.helpers.ContainerUtils.verifyChecksum(ContainerUtils.java:214)
2025-04-10 15:58:41 at
org.apache.hadoop.ozone.container.keyvalue.helpers.KeyValueContainerUtil.parseKVContainerData(KeyValueContainerUtil.java:210)
2025-04-10 15:58:41 at
org.apache.hadoop.ozone.container.keyvalue.KeyValueContainer.importContainerData(KeyValueContainer.java:683)
2025-04-10 15:58:41 at
org.apache.hadoop.ozone.container.keyvalue.KeyValueContainer.importContainerData(KeyValueContainer.java:708)```
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