Xiaoyu Yao created HDFS-11504:
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Summary: Ozone: SCM: Add AllocateBlock/DeleteBlock/GetBlock APIs
Key: HDFS-11504
URL: https://issues.apache.org/jira/browse/HDFS-11504
Project: Hadoop HDFS
Issue Type: Sub-task
Affects Versions: HDFS-7240
Reporter: Xiaoyu Yao
Assignee: Xiaoyu Yao
The signature of the APIs are listed below. This allows SCM to
1) allocateBlock for client and maintain the key->container mapping in level DB
in addition to the existing container to pipeline mapping in level DB.
2) return the pipeline of a block based on the key.
3) remove the block based on the key of the block.
{code}
<Pipeline,key> allocateBlock(long size)
<Pipeline> getBlock(key);
void deleteBlock(key);
{code}
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