Hi all, Our DSpace installation takes many seconds (up to minutes sometimes) to load, after adding records to a specific collection. It is very slow loading of a collection (or owing community).
What changed 1187 records were added to specific collection (https://gnosis.library.ucy.ac.cy/handle/7/39699). Each record has a very large number of metadata (Examples: https://gnosis.library.ucy.ac.cy/handle/7/61606 and https://gnosis.library.ucy.ac.cy/handle/7/61622 ). Result The specified collection takes ~1 minute+ to load. It also affects communities that include this collection. At the same time I'm seeing high cpu loads in tomcat ( each call requires ~100% up to or more ~400%) What was tried to solve this Added more ram to tomcat and java : * JAVA_OPTS=-Djava.awt.headless=true -Xmx10240m -Xms10240m -XX:MaxPermSize=5120m -Dfile.encoding=UTF-8 -XX:MaxHeapFreeRatio=70 * -XX:+UseConcMarkSweepGC -XX:+CMSPermGenSweepingEnabled -XX:+CMSClassUnloadingEnabled CATALINA_OPTS=-Djava.awt.headless=true -Xms8192m -Xmx8192m -XX:MaxPermSize=2048m -XX:+UseConcMarkSweepGC -Dfile.encoding=UTF-8 Added more ram to postgresql * shared_buffers = 1024MB Also note that postgresql is on a different box. Increased db connections number: db.maxconnections = 90 Set community cache to 12 hours: xmlui.community-list.cache = 12 hours System details for DSpace: * java version "1.7.0_241", OpenJDK Runtime Environment (rhel-2.6.20.0.el7_7-x86_64 u241-b01) * Tomcat 7.0.76 * DSpace 5.5 XMLUI Has anyone faced a similar situation? Any ideas are most welcome :) Thank you, Evelthon -- All messages to this mailing list should adhere to the DuraSpace Code of Conduct: https://duraspace.org/about/policies/code-of-conduct/ --- You received this message because you are subscribed to the Google Groups "DSpace Technical Support" group. To unsubscribe from this group and stop receiving emails from it, send an email to dspace-tech+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/dspace-tech/1b8a9152-ca5a-c9b2-e85d-62e6dafcb080%40ucy.ac.cy.
