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https://issues.apache.org/jira/browse/HDDS-8377?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17709049#comment-17709049
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Devesh Kumar Singh commented on HDDS-8377:
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[~erose] - I analyzed HDDS-8377 and found that Recon API already provides
containers all unhealthy replicas and will not consider and put them in
category of missing if API is provided that filter parameter with value
"ALL_REPLICAS_UNHEALTHY" because if this filter is provided in API, then below
logic is being used , as per below logic it provides those containers which are
marked as under replicated and container's actual replica count is zero.{{{}if
(state.equals(ALL_REPLICAS_UNHEALTHY)) {{}}}
{{ query.addConditions(UNHEALTHY_CONTAINERS.CONTAINER_STATE}}
{{ .eq(UNDER_REPLICATED.toString()));}}
{{{}
query.addConditions(UNHEALTHY_CONTAINERS.ACTUAL_REPLICA_COUNT.eq(0));{}}}Containers
are marked as {{UNDER_REPLICATED}} by Recon, when some healthy replicas are
present for a container and {{replicaDelta > 0}} where {{replicaDelta =
repFactor - this.healthyReplicas.size(); }}Pls let me know if I am not clear or
my understanding is not correct..
> Do not count containers with all unhealthy replicas as missing in Recon
> -----------------------------------------------------------------------
>
> Key: HDDS-8377
> URL: https://issues.apache.org/jira/browse/HDDS-8377
> Project: Apache Ozone
> Issue Type: Improvement
> Components: Ozone Recon
> Reporter: Ethan Rose
> Assignee: Devesh Kumar Singh
> Priority: Major
>
> Currently, if all replicas of a container are unhealthy, Recon will consider
> that container missing. When all replicas are unhealthy, some or all of the
> data in those containers could still be readable. This is different from all
> replicas being lost, where all the data is definitely not readable. This jira
> proposes adding a new category to Recon for containers where all replicas are
> unhealthy, and to not reuse the missing category for these containers.
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