Hi,

Did you find a solution to your performance problem?

--
Jan Høydahl, search solution architect
Cominvent AS - www.cominvent.com

> 17. jun. 2019 kl. 17:17 skrev Andy Reek <andy.r...@diva-e.com>:
> 
> Hi Solr team,
> 
> we are using Solr in version 7.1 as search engine in our online shop (SAP 
> Hybris). And as a task I needed to migrate to the most recent Solr in version 
> 7 (7.7). Doing this I faced extreme performance issues. After debugging and 
> testing different setups I found out, that they were caused by the parameter 
> wt=javabin. These issues begin to raise since version 7.7, in 7.6 it is still 
> working as fast as in 7.1.
> 
> Just an example: Doing a simple query for *.* and wt=javabin in 7.6: 0.2 
> seconds and in 7.7: 34 seconds!
> 
> The configuration of the schema.xml and solrconfig.xml are equal in both 
> versions. Version 8.1 has the same effect as 7.7. Using something other than 
> wt=javabin (e.g. wt=xml) will work fast in every version - which is our 
> current workaround.
> 
> 
> To reproduce this issue I have attached my used configsets folder plus some 
> test data. This all can be tested with docker and wget:
> 
> Solr 7.6:
> docker run -d --name solr7.6 -p 8983:8983 --rm -v 
> $PWD/configsets/default:/opt/solr/server/solr/configsets/myconfig:ro 
> solr:7.6-slim solr-create -c mycore -d 
> /opt/solr/server/solr/configsets/myconfig
> docker cp $PWD/data.json solr7.6:/opt/solr/data.json
> docker exec -it --user solr solr7.6 bin/post -c mycore data.json
> wget "http://localhost:8983/solr/mycore/select?q=*:*&wt=javabin&rows=9999 
> <http://localhost:8983/solr/mycore/select?q=*:*&wt=javabin&rows=9999>"
> (0.2s)
> 
> Solr 7.7:
> docker run -d --name solr7.7 -p 18983:8983 --rm -v 
> $PWD/configsets/default:/opt/solr/server/solr/configsets/myconfig:ro 
> solr:7.7-slim solr-create -c mycore -d 
> /opt/solr/server/solr/configsets/myconfig
> docker cp $PWD/data.json solr7.7:/opt/solr/data.json
> docker exec -it --user solr solr7.7 bin/post -c mycore data.json
> (34s)
> 
> For me it seems like a bug. But if not, then please let me know what I did 
> wrong ;-)
> 
> 
> Best Regards,
>  
> Andy Reek
> Principal Software Developer
>  
> diva-e Jena
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> 
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> <solrConfigAndData.zip>

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