Andrew Wang created HDFS-11565:
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Summary: Use compact identifiers for built-in ECPolicies in
HdfsFileStatus
Key: HDFS-11565
URL: https://issues.apache.org/jira/browse/HDFS-11565
Project: Hadoop HDFS
Issue Type: Improvement
Components: erasure-coding
Affects Versions: 3.0.0-alpha2
Reporter: Andrew Wang
Assignee: Andrew Wang
Discussed briefly on HDFS-7337 with Kai Zheng. Quoting our convo:
{quote}
>From looking at the protos, one other question I had is about the overhead of
>these protos when using the hardcoded policies. There are a bunch of strings
>and ints, which can be kind of heavy since they're added to each
>HdfsFileStatus. Should we make the built-in ones identified by purely an ID,
>with these fully specified protos used for the pluggable policies?
{quote}
{quote}
Sounds like this could be considered separately because, either built-in
policies or plugged-in polices, the full meta info is maintained either by the
codes or in the fsimage persisted, so identifying them by purely an ID should
works fine. If agree, we could refactor the codes you mentioned above
separately.
{quote}
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