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Posted to hdfs-dev@hadoop.apache.org by "Lokesh Jain (Jira)" <ji...@apache.org> on 2019/10/14 09:46:00 UTC

[jira] [Created] (HDDS-2299) BlockManager should allocate a block in excluded pipelines if none other left

Lokesh Jain created HDDS-2299:
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             Summary: BlockManager should allocate a block in excluded pipelines if none other left
                 Key: HDDS-2299
                 URL: https://issues.apache.org/jira/browse/HDDS-2299
             Project: Hadoop Distributed Data Store
          Issue Type: Bug
          Components: SCM
            Reporter: Lokesh Jain
            Assignee: Lokesh Jain


In SCM, BlockManager#allocateBlock does not allocate a block in the excluded pipelines or datanodes if requested by the client. But there can be cases where excluded pipelines are the only pipelines left. In such a case SCM should allocate a block in such pipelines and return to the client. The client can choose to use or discard the block.



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