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https://issues.apache.org/jira/browse/HDDS-9665?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17788485#comment-17788485
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George Jahad edited comment on HDDS-9665 at 11/21/23 5:31 PM:
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After looking at the flame graphs, we determined that this was created by the
SelectorOutputStream which is invoked when "ratis streaming" is enabled with
the ozone.fs.datastream.enabled flag.
We will open a separate ticket for that, but we can close this one now.
was (Author: georgejahad):
After looking at the flame graphs, we determined that this was created by the
SelectorOutputStream which is invoked when "ratis streaming" with the
ozone.fs.datastream.enabled flag.
We will open a separate ticket for that, but we can close this one now.
> DFS/ofs writes have very low performance
> ----------------------------------------
>
> Key: HDDS-9665
> URL: https://issues.apache.org/jira/browse/HDDS-9665
> Project: Apache Ozone
> Issue Type: Improvement
> Reporter: Christos Bisias
> Priority: Major
>
> This command is very slow
> {code:java}
> ozone freon dfsg -s10240000 -n10000 -t10 --path=ofs://om/pe-ofs/
> --prefix="ofs-100GB"{code}
>
> In contrast with this, which is fast
> {code:java}
> ozone freon ockg -s10240000 -n10000 -t10 -b pe-ofs -v vol1
> --prefix="ofs-100GB" {code}
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