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From Jan Høydahl (JIRA) <j...@apache.org>
Subject [jira] [Commented] (SOLR-12814) Metrics page causing "HttpParser URI is too large >8192"
Date Thu, 27 Sep 2018 17:10:00 GMT

    [ https://issues.apache.org/jira/browse/SOLR-12814?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16630746#comment-16630746
] 

Jan Høydahl commented on SOLR-12814:
------------------------------------

Definitely looks like requests from nodes page. Will have a look if we can explicitly do POST
for these. The initial request only specifies prefix params but somehow they seem to be translated
into a longer list of key params somewhere?

> Metrics page causing "HttpParser URI is too large >8192"
> --------------------------------------------------------
>
>                 Key: SOLR-12814
>                 URL: https://issues.apache.org/jira/browse/SOLR-12814
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: metrics, SolrCloud
>    Affects Versions: 7.5
>         Environment: 3x zookeeper and 3x solr cloud servers,
> 50 test collections with 0 data in them
>            Reporter: matthew medway
>            Priority: Major
>              Labels: URI, header, http, httpparser, large, metrics, solr, solrcloud,
too, uri
>         Attachments: longmetricsquery.txt
>
>
> If you have a lot of collections, like 50 or more, the new metrics page in version 7.5
can't run its queries because the default solr.jetty.request.header.size and solr.jetty.response.header.size
values are too small.
> If I up the header values from 8192 to 65536 the commands will work.
> command to change the defaults:
> {code:java}
> sed -i 's/\"solr.jetty.request.header.size\" default=\"8192\"/\"solr.jetty.request.header.size\"
default=\"65536\"/g' /opt/solr/server/etc/jetty.xml 
> sed -i 's/\"solr.jetty.response.header.size\" default=\"8192\"/\"solr.jetty.response.header.size\"
default=\"65536\"/g' /opt/solr/server/etc/jetty.xml
> {code}
> before changing the header size log: 
> {code:java}
> 2018-09-27 13:06:45.434 INFO (qtp534906248-14) [ ] o.a.s.s.HttpSolrCall [admin] webapp=null
path=/admin/metrics params={wt=javabin&version=2&key=solr.jvm:os.processCpuLoad&key=solr.node:CONTAINER.fs.coreRoot.usableSpace&key=solr.jvm:os.systemLoadAverage&key=solr.jvm:memory.heap.used}
status=0 QTime=0
> 2018-09-27 13:07:45.527 WARN (qtp534906248-17) [ ] o.e.j.h.HttpParser URI is too large
>8192
> 2018-09-27 13:07:45.530 INFO (qtp534906248-16) [ ] o.a.s.s.HttpSolrCall [admin] webapp=null
path=/admin/metrics params={wt=javabin&version=2&key=solr.jvm:os.processCpuLoad&key=solr.node:CONTAINER.fs.coreRoot.usableSpace&key=solr.jvm:os.systemLoadAverage&key=solr.jvm:memory.heap.used}
status=0 QTime=0
> 2018-09-27 13:08:45.621 WARN (qtp534906248-20) [ ] o.e.j.h.HttpParser URI is too large
>8192
> 2018-09-27 13:08:45.625 INFO (qtp534906248-15) [ ] o.a.s.s.HttpSolrCall [admin] webapp=null
path=/admin/metrics params={wt=javabin&version=2&key=solr.jvm:os.processCpuLoad&key=solr.node:CONTAINER.fs.coreRoot.usableSpace&key=solr.jvm:os.systemLoadAverage&key=solr.jvm:memory.heap.used}
status=0 QTime=0
> 2018-09-27 13:09:45.725 WARN (qtp534906248-20) [ ] o.e.j.h.HttpParser URI is too large
>8192
> {code}
> After changing the header size log:
> {code:java}
> attached as a file because its very long and ugly{code}
> Is it possible to break up this command into batches so that it can run without modifying
the header sizes? 
> Thanks!
>  -Matt
>  



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