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https://issues.apache.org/jira/browse/HDFS-11196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15893179#comment-15893179
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Xiaoyu Yao commented on HDFS-11196:
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Thanks [~anu] for working on this. The patch looks pretty good to me. It will
help us a lot trouble shooting container layer issues in future.
I just have a few minor issues below. +1 otherwise.
1. We seems to have an extra StorageContainerException defined in
hadoop-hdfs-client/src/main/java/org/apache/hadoop/scm/container/common/helpers/StorageContainerException.java.
Can we just keep the one in
hadoop-hdfs-project/hadoop-hdfs-client/src/main/java/org/apache/hadoop/scm/container/common/helpers/StorageContainerException.java
only for org.apache.hadoop.scm.container.common.helpers package.
2. NIT: StorageContainerException.java
Line 42/63/83: missing javadoc for parameter result
3. ContainerProtocolCall.java
Line 295: can we remove the TODO if this patch has taken care of the right
exception thrown issue? Ignore this comment if we still have pending work on
this.
Line 300: do we need to plumb the traceID into the StorageContianerException as
described in the ticket? Looks like it is unused here.
4. ChunkUtils.java
Line 167/255: NIT: javadoc throws does not match with the code
Line 293: do we need to throw StorageContainerException with
CONTAINER_INTERNAL_ERROR like Line 214?
6. ContainerUtils.java
Line 310: NIT: javadoc throws declaration
Line 319: can we include the path in the exception message for trouble shooting?
7. KeyUtils.java
Line 67: NIT: @throws StorageContainerException
Line 82: can we include the db path and container name in the exception message
for trouble shooting?
8. ContainerManagerImpl.java
Line 102/107/156/277: throws StorageContainerException
Line 210: should we rethrow StorageContainerException here?
9. Dispatcher.java
Line 519/561: throws StorageContainerException
Line 552: Not sure if PROTOC_DECODING_ERROR is the only IOException in the try
block. Can you confirm?
Maybe adding more specific PUT_SMALLFILE_ERROR/GET_SMALLFILE_ERROR?
10. KeyManager.java
Line 50: throws StorageContainerException
> Ozone: Improve logging and error handling in the container layer
> ----------------------------------------------------------------
>
> Key: HDFS-11196
> URL: https://issues.apache.org/jira/browse/HDFS-11196
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Affects Versions: HDFS-7240
> Reporter: Anu Engineer
> Assignee: Anu Engineer
> Fix For: HDFS-7240
>
> Attachments: HDFS-11196-HDFS-7240.001.patch
>
>
> Improve logging and error handling in container layer.
> * With this change Storage Containers return StorageContainerException.
> * Precondition checks fail with a human readable error.
> * All failed requests are logged with traceID in the dispatcher.
> * Returns proper error codes for corresponding failures.
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