How to resolve Java heap space exception in Solr

September 11, 2020September 11, 2020 smitbmx2 Comments

For the last few days I’ve noticed weird behavior in Sitecore instances which are related to Solr, for example:

indexes are rebuilding with exceptions;
sitecore instance is being slow;
lost connection to Solr;
not able to restart the Solr service, it’s just take an infinity time to stop.

For all of this things I haven’t pay much attention to start troubleshooting, because I’m working in another area which not related to indexes, the behaviour is quite new for me and just simple reboot has helped.

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“Entourage” anti-pattern and “Stairway” pattern

September 2, 2020September 2, 2020 smitbmxLeave a comment

The Entourage anti-pattern brings no needed dependency. In this example if we build project with Controllers in isolation, the bin folder going to have the NHibirnate assembly as implicit dependency. With the current implementation the services, domain, NHibernate, etc. classes must be public, hence developer able to create any of them manually with constructor usage and this is unwilling situation.

The Stairway pattern is fix the entourage anti-pattern. The interface and implementation should be separated from each other in different assemblies. Hence, with this approach we easily can replace implementations.