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From "Alan Woodward (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-13123) Free disk based suggester short circuits without exploring all states
Date Tue, 08 Jan 2019 09:19:00 GMT

     [ https://issues.apache.org/jira/browse/SOLR-13123?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Alan Woodward updated SOLR-13123:
---------------------------------
    Fix Version/s: master (9.0)

> Free disk based suggester short circuits without exploring all states
> ---------------------------------------------------------------------
>
>                 Key: SOLR-13123
>                 URL: https://issues.apache.org/jira/browse/SOLR-13123
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: AutoScaling
>    Affects Versions: 7.5, 7.6
>            Reporter: Shalin Shekhar Mangar
>            Priority: Minor
>             Fix For: 8.0, 7.7, master (9.0)
>
>
> The free disk variable based suggester can stop generating suggestions too early because
it short circuits the suggestion loop after the first node that results in a violation (or
increases the violation).
> This is further exacerbated by the fact that the replicas in each node are evaluated
in the order of index size ascending which causes the smallest replicas to be considered first.
If a violation happens in moving this small replica then the larger replicas are never even
considered for a move.
> We should consider all possibilities here and stop short circuiting on a violation.



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