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Posted to hdfs-issues@hadoop.apache.org by "Xiaoyu Yao (JIRA)" <ji...@apache.org> on 2017/06/23 00:14:00 UTC
[jira] [Created] (HDFS-12016) Ozone: SCM: Container metadata are
not loaded properly after datanode restart
Xiaoyu Yao created HDFS-12016:
---------------------------------
Summary: Ozone: SCM: Container metadata are not loaded properly after datanode restart
Key: HDFS-12016
URL: https://issues.apache.org/jira/browse/HDFS-12016
Project: Hadoop HDFS
Issue Type: Sub-task
Components: ozone, scm
Affects Versions: HDFS-7240
Reporter: Nandakumar
Assignee: Xiaoyu Yao
Repro steps (Credit to [~nandakumar131])
1. create volume/bucket/key
2. putkey
3. restart DN
4. getkey will hit error on container not found like below.
{code}
2017-06-22 15:28:29,950 [Thread-48] INFO (OzoneExceptionMapper.java:39) vol-2/bucket-1/key-1 xyao 8727acc4-c1e9-4ba3-a819-4c0e16957079 - Returning exception. ex: {"httpCode":500,"shortMessage":"internalServerError","resource":"xyao","message":"org.apache.hadoop.scm.container.common.helpers.StorageContainerException: Unable to find the container. Name: 48cb0c3d-0537-4cff-b716-a7f69ebf50bc","requestID":"8
{code}
The root cause is OzoneContainer#OzoneContainer does not load containers from repository properly when ozone.container.metadata.dirs are specified.
The fix is to append the CONTAINER_ROOT_PREFIX when looking for containers on the datanode.
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