[jira] [Updated] (SOLR-11833) Allow searchRate trigger to delete replicas
[
https://issues.apache.org/jira/browse/SOLR-11833?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Andrzej Bialecki updated SOLR-11833:
-
Attachment: SOLR-11833.patch
> Allow searchRate trigger to delete replicas
> ---
>
> Key: SOLR-11833
> URL: https://issues.apache.org/jira/browse/SOLR-11833
> Project: Solr
> Issue Type: Sub-task
> Security Level: Public(Default Security Level. Issues are Public)
> Components: AutoScaling
>Reporter: Andrzej Bialecki
>Assignee: Andrzej Bialecki
>Priority: Major
> Fix For: 7.4, master (8.0)
>
> Attachments: SOLR-11833.patch, SOLR-11833.patch
>
>
> Currently {{SearchRateTrigger}} generates events when search rate thresholds
> are exceeded, and {{ComputePlanAction}} computes ADDREPLICA actions in
> response - adding replicas should allow the search rate to be reduced across
> the increased number of replicas.
> However, once the peak load period is over the collection is left with too
> many replicas, which unnecessarily tie cluster resources.
> {{SearchRateTrigger}} should detect situations like this and generate events
> that should cause some of these replicas to be deleted.
> {{SearchRateTrigger}} should use hysteresis to avoid thrashing when the rate
> is close to the threshold.
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[jira] [Updated] (SOLR-11833) Allow searchRate trigger to delete replicas
[
https://issues.apache.org/jira/browse/SOLR-11833?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Andrzej Bialecki updated SOLR-11833:
-
Fix Version/s: master (8.0)
7.4
> Allow searchRate trigger to delete replicas
> ---
>
> Key: SOLR-11833
> URL: https://issues.apache.org/jira/browse/SOLR-11833
> Project: Solr
> Issue Type: Sub-task
> Security Level: Public(Default Security Level. Issues are Public)
> Components: AutoScaling
>Reporter: Andrzej Bialecki
>Assignee: Andrzej Bialecki
>Priority: Major
> Fix For: 7.4, master (8.0)
>
> Attachments: SOLR-11833.patch
>
>
> Currently {{SearchRateTrigger}} generates events when search rate thresholds
> are exceeded, and {{ComputePlanAction}} computes ADDREPLICA actions in
> response - adding replicas should allow the search rate to be reduced across
> the increased number of replicas.
> However, once the peak load period is over the collection is left with too
> many replicas, which unnecessarily tie cluster resources.
> {{SearchRateTrigger}} should detect situations like this and generate events
> that should cause some of these replicas to be deleted.
> {{SearchRateTrigger}} should use hysteresis to avoid thrashing when the rate
> is close to the threshold.
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[jira] [Updated] (SOLR-11833) Allow searchRate trigger to delete replicas
[
https://issues.apache.org/jira/browse/SOLR-11833?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Andrzej Bialecki updated SOLR-11833:
-
Attachment: SOLR-11833.patch
> Allow searchRate trigger to delete replicas
> ---
>
> Key: SOLR-11833
> URL: https://issues.apache.org/jira/browse/SOLR-11833
> Project: Solr
> Issue Type: Sub-task
> Security Level: Public(Default Security Level. Issues are Public)
> Components: AutoScaling
>Reporter: Andrzej Bialecki
>Assignee: Andrzej Bialecki
>Priority: Major
> Attachments: SOLR-11833.patch
>
>
> Currently {{SearchRateTrigger}} generates events when search rate thresholds
> are exceeded, and {{ComputePlanAction}} computes ADDREPLICA actions in
> response - adding replicas should allow the search rate to be reduced across
> the increased number of replicas.
> However, once the peak load period is over the collection is left with too
> many replicas, which unnecessarily tie cluster resources.
> {{SearchRateTrigger}} should detect situations like this and generate events
> that should cause some of these replicas to be deleted.
> {{SearchRateTrigger}} should use hysteresis to avoid thrashing when the rate
> is close to the threshold.
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