[jira] [Resolved] (SOLR-11049) Solr in cloud mode silently fails uploading a big LTR model

["Christine Poerschke (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-11049?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Christine Poerschke resolved SOLR-11049.
----------------------------------------
       Resolution: Workaround
    Fix Version/s: master (8.0)
                   7.2

Thanks for reporting this issue and the {{-Djute.maxbuffer}} workaround!

Closing this ticket with reference to the workaround and SOLR-11250 in 7.2 adding a {{DefaultWrapperModel}} class for loading of large and/or externally stored LTRScoringModel definitions.

> Solr in cloud mode silently fails uploading a big LTR model
> -----------------------------------------------------------
>
>                 Key: SOLR-11049
>                 URL: https://issues.apache.org/jira/browse/SOLR-11049
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: contrib - LTR
>         Environment: tested with Solr 6.6 an integrated zookeeper
>            Reporter: Stefan Langenmaier
>             Fix For: 7.2, master (8.0)
>
>         Attachments: SOLR-11049.patch
>
>
> Hi,
> I'm using Solr in cloud mode, I have a MultipleAdditiveTreesModel with about 3MB in size. When I upload the model with
> {noformat}
> curl -v -XPUT 'http://localhost:8983/solr/tmdb/schema/model-store' --data-binary @/big-tree.model -H 'Content-type:application/json'
> {noformat}
> I get the following response
> {code:html}
> {
>   "responseHeader":{
>     "status":0,
>     "QTime":24318}
> }
> {code}
> This looks kind of slow but without an error. When I check the config the model is not visible and when I try to run a query that uses the model I get the following error
> {code:html}
> "error":{
>     "metadata":[
>       "error-class","org.apache.solr.common.SolrException",
>       "root-error-class","org.apache.solr.common.SolrException"],
>     "msg":"cannot find model bigTreeModel",
>     "code":400}
> {code}
> When I upload the model to solr where I increased the zookeeper znode size limit with
> {noformat}
> -Djute.maxbuffer=0x1ffffff
> {noformat}
> the same model upload succeeds much faster
> {code:html}
> {
>   "responseHeader":{
>     "status":0,
>     "QTime":689}
> }
> {code}
> The model is visible in the configuration and queries that use it run without error.



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