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https://issues.apache.org/jira/browse/HDFS-10195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15210632#comment-15210632
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Jing Zhao commented on HDFS-10195:
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Thanks a lot for the detailed comments and explanation, [~anu]!
bq. so ideally we should be having a DB per pipeline
For a container's metadata db replication, I think it may be better to
replicate the log/ops instead of replicating the db itself. Looks to me this
can avoid the too many db issue, and also support metadata update ops better.
We may need to have a separate metadata related log file for each container in
this case (which may still have some advantage compared with writing individual
leveldb logs/files I guess).
For this jira I think we do not need to make any change to the current db
design/impl. If you think it's worth further exploration and discussion, we can
use a separate jira.
> Ozone: Add container persistence
> --------------------------------
>
> Key: HDFS-10195
> URL: https://issues.apache.org/jira/browse/HDFS-10195
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Affects Versions: HDFS-7240
> Reporter: Anu Engineer
> Assignee: Anu Engineer
> Fix For: HDFS-7240
>
> Attachments: HDFS-10195-HDFS-7240.001.patch
>
>
> Adds file based persistence for containers.
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