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Yuri Simione edited comment on SLING-11251 at 4/6/22 7:50 PM: -------------------------------------------------------------- I replicated the same behavior in Adobe AEM 6.5 SP8, so even in an older version of Sling. was (Author: JIRAUSER286035): I replicated the same behavior in Adobe AEM 6.5 SP8, so also in a older Sling version. > Apache Sling Post Servlet consumes too much resources during content ingestion > ------------------------------------------------------------------------------ > > Key: SLING-11251 > URL: https://issues.apache.org/jira/browse/SLING-11251 > Project: Sling > Issue Type: Bug > Components: Servlets > Affects Versions: Starter 12 > Environment: Mac OS, OpenJDK 1.8, Intel I9, 16gb RAM. > Reporter: Yuri Simione > Priority: Major > Attachments: image-2022-04-05-09-09-08-725.png, > image-2022-04-05-09-19-55-925.png > > > I am testing performances of Apache Sling 12, configured with Oak Segment > Store, started with the -Xmx4g parameter. I'm using a multi-threaded Python > script (I tried with 30 threads down to 5 concurrent threads). The tool loads > thousands of contents on new oak:Unstructured nodes using the standard > {*}Sling POST servlet{*}. Before to start the import I stopped the Lucene > bundle. Initially performances are good (about 200 new documents/sec). Soon, > after the tool has ingested about 20k new nodes, the speed drops to a few > nodes per second. I analyzed the JVM and noticed that the memory allocated > for some threads grows by several GBs without ever going down (see attached > images). If I stop the import tool, the situation does not change. The only > way to solve this problem is to turn off the Sling instance and restart it. > Is it normal for threads and in particular for the threads that implement the > POST servlet, to acquire resources that are never released? I am available to > reproduce this issue during a Teams / Google Meet. -- This message was sent by Atlassian Jira (v8.20.1#820001)