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https://issues.apache.org/jira/browse/HDFS-12521?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16215976#comment-16215976
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Anu Engineer edited comment on HDFS-12521 at 10/23/17 10:53 PM:
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bq. The listContainer json output changes after the patch as now the function
outputs a list of ContainerInfo instead of list of Pipelines. Therefore the
json now contains field from ContainerInfo class as well.
care to post a sample of how these changes look like?Is there any benefit for
the end-user due to this change?
I am +1 on these changes, but I am very nervous when we make format changes
like this JSON output. Can we please verify that hdfs oz command and corona
works properly after this patch. My apologies for being so finicky, we are
close to a merge and I would not want to any commit to cause a test failure.
plus, I have a very small nit: {{loadContainerMaps(containerMapping);}} Can we
call this function right after initializeContainerMaps, that way we don't need
to even modify the initilizeContainerMaps. You can even rename the
{{loadContainerMaps}} to {{loadExisitingContainers}}.
was (Author: anu):
bq. The listContainer json output changes after the patch as now the function
outputs a list of ContainerInfo instead of list of Pipelines. Therefore the
json now contains field from ContainerInfo class as well.
care to post a sample of how these changes look like?Is there any benefit for
the end-user due to this change?
> Ozone: SCM should read all Container info into memory when booting up
> ---------------------------------------------------------------------
>
> Key: HDFS-12521
> URL: https://issues.apache.org/jira/browse/HDFS-12521
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ozone
> Reporter: Anu Engineer
> Assignee: Lokesh Jain
> Labels: ozoneMerge
> Attachments: HDFS-12521-HDFS-7240.001.patch,
> HDFS-12521-HDFS-7240.002.patch, HDFS-12521-HDFS-7240.003.patch,
> HDFS-12521-HDFS-7240.004.patch, HDFS-12521-HDFS-7240.005.patch
>
>
> When SCM boots up it should read all containers into memory. This is a
> performance optimization that allows delays on SCM side. This JIRA tracks
> that issue.
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