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From "Cassandra Targett (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-12977) Autoscaling policy initialisation tries to fetch metrics from dead nodes
Date Wed, 16 Jan 2019 20:42:00 GMT

    [ https://issues.apache.org/jira/browse/SOLR-12977?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16744451#comment-16744451
] 

Cassandra Targett commented on SOLR-12977:
------------------------------------------

[~noble.paul], This appears in CHANGES.txt for 7.6, so it should be resolved?

> Autoscaling policy initialisation tries to fetch metrics from dead nodes
> ------------------------------------------------------------------------
>
>                 Key: SOLR-12977
>                 URL: https://issues.apache.org/jira/browse/SOLR-12977
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: AutoScaling
>            Reporter: Shalin Shekhar Mangar
>            Assignee: Noble Paul
>            Priority: Minor
>             Fix For: 7.6, 8.0
>
>
> Autoscaling policy initialisation tries to fetch metrics for each node during construction.
However, it does not skip the known dead nodes causing a timeout to be logged. We should skip
such requests entirely.
> {code}
> 20579 WARN  (AutoscalingActionExecutor-37-thread-1) [    ] o.a.s.c.s.i.SolrClientNodeStateProvider
could not get tags from node 127.0.0.1:63255_solr
> org.apache.solr.client.solrj.SolrServerException: Server refused connection at: http://127.0.0.1:63255/solr
> 	at org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:650)
~[java/:?]
> 	at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:255)
~[java/:?]
> 	at org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:244)
~[java/:?]
> 	at org.apache.solr.client.solrj.SolrClient.request(SolrClient.java:1260) ~[java/:?]
> 	at org.apache.solr.client.solrj.impl.SolrClientNodeStateProvider$ClientSnitchCtx.invoke(SolrClientNodeStateProvider.java:342)
~[java/:?]
> 	at org.apache.solr.client.solrj.impl.SolrClientNodeStateProvider.fetchReplicaMetrics(SolrClientNodeStateProvider.java:195)
[java/:?]
> 	at org.apache.solr.client.solrj.impl.SolrClientNodeStateProvider.fetchReplicaMetrics(SolrClientNodeStateProvider.java:186)
[java/:?]
> 	at org.apache.solr.client.solrj.impl.SolrClientNodeStateProvider.getReplicaInfo(SolrClientNodeStateProvider.java:169)
[java/:?]
> 	at org.apache.solr.client.solrj.cloud.autoscaling.Row.<init>(Row.java:60) [java/:?]
> 	at org.apache.solr.client.solrj.cloud.autoscaling.Suggester.getSuggestion(Suggester.java:181)
[java/:?]
> 	at org.apache.solr.cloud.autoscaling.ComputePlanAction.process(ComputePlanAction.java:114)
[java/:?]
> 	at org.apache.solr.cloud.autoscaling.ScheduledTriggers.lambda$null$419(ScheduledTriggers.java:308)
[java/:?]
> {code}



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