Yongjun Zhang created HDFS-10919:
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Summary: Provide admin/debug tool to dump out info of a given block
Key: HDFS-10919
URL: https://issues.apache.org/jira/browse/HDFS-10919
Project: Hadoop HDFS
Issue Type: New Feature
Components: hdfs
Reporter: Yongjun Zhang
We have fsck to find out blocks associated with a file, which is nice.
Sometimes, we saw trouble with a specific block, we'd like to collect info
about this block, such as
* what file this block belong to,
* where the replicas of this block are located,
* whether the block is EC coded;
* if a block is EC coded, whether it's a data block, or code
* if a block is EC coded, what's the codec.
* if a block is EC coded, what's the block group
* for the block group, what are the other blocks
Create this jira to provide such a util, as dfsadmin, or a debug tool.
Thanks.
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