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Posted to hdfs-dev@hadoop.apache.org by "Walter Su (JIRA)" <ji...@apache.org> on 2015/06/11 13:44:01 UTC

[jira] [Created] (HDFS-8580) Erasure coding: Persist cellSize in BlockInfoStriped and StripedBlockProto

Walter Su created HDFS-8580:
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             Summary: Erasure coding: Persist cellSize in BlockInfoStriped and StripedBlockProto
                 Key: HDFS-8580
                 URL: https://issues.apache.org/jira/browse/HDFS-8580
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Walter Su
            Assignee: Walter Su


Zhe Zhang, Kai Zheng and I had a offline discussion. Here is what we thought:  Add a cellSize field in BlockInfoStriped as a workaround, and deal with memory usage in follow-on.

discussion in HDFS-8494:
from [~jingzhao]
{quote}
Also, we should consider adding a chunk size field to StripedBlockProto and removing the cell size field from HdfsFileStatus. In this way we can access the chunk size information in the storage layer.
{quote}



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