https://connect.hyland.com/t5/nuxeo-forum/performance-issue-with-300-000-loaded-users-jfr-attached/m-p/320613#M7614 <P>Thanks for fast answer. Can you be more specific about "more info"? How can we deliver dumps from DEV environment?</P> Wed, 04 Jul 2018 10:42:03 GMT Kamil_Szymala 2018-07-04T10:42:03Z https://connect.hyland.com/t5/nuxeo-forum/performance-issue-with-300-000-loaded-users-jfr-attached/m-p/320611#M7612 <P>My team is preparing Proof of concept, We selected Nuxeo as a platform, and we are facing performance issue.</P> <P>How to reproduce:</P> <PRE><CODE>1. Nuxeo ECM loaded with 100 pdf documents (200KB each). 2. 10 user groups(local) created with read permissions to documents. 3. 300 000 users(local) created and attached to created groups 4. Sign-in as "Administrator" is working as normal. 5. Sign-in using any other created user takes between 12-40 minutes. (using java-client or nuxeo ui) 6. After 40 minutes we are able to log-in without lag. </CODE></PRE> <P>This lag issue occurs each time we create document and assign group with 300 000 users (already existing) to new document.</P> <P>Action taken: Enable/Disable ACL optimization in nuxeo configuration had no noticeable impact on performance.</P> <P>How can we improve performance? Is it possible to reduce lag?</P> Wed, 04 Jul 2018 08:15:38 GMT https://connect.hyland.com/t5/nuxeo-forum/performance-issue-with-300-000-loaded-users-jfr-attached/m-p/320611#M7612 Kamil_Szymala 2018-07-04T08:15:38Z https://connect.hyland.com/t5/nuxeo-forum/performance-issue-with-300-000-loaded-users-jfr-attached/m-p/320612#M7613 <P>Diagnosing the cause of any slowness must be done through tools like jstack (or Thread.print) or Java Flight Recorder. Without more info we cannot help.</P> Wed, 04 Jul 2018 10:11:57 GMT https://connect.hyland.com/t5/nuxeo-forum/performance-issue-with-300-000-loaded-users-jfr-attached/m-p/320612#M7613 Florent_Guillau 2018-07-04T10:11:57Z https://connect.hyland.com/t5/nuxeo-forum/performance-issue-with-300-000-loaded-users-jfr-attached/m-p/320613#M7614 <P>Thanks for fast answer. Can you be more specific about "more info"? How can we deliver dumps from DEV environment?</P> Wed, 04 Jul 2018 10:42:03 GMT https://connect.hyland.com/t5/nuxeo-forum/performance-issue-with-300-000-loaded-users-jfr-attached/m-p/320613#M7614 Kamil_Szymala 2018-07-04T10:42:03Z https://connect.hyland.com/t5/nuxeo-forum/performance-issue-with-300-000-loaded-users-jfr-attached/m-p/320614#M7615 <P>More info means identify the thread dumps about working threads that spend a long time working.</P> Wed, 04 Jul 2018 10:42:27 GMT https://connect.hyland.com/t5/nuxeo-forum/performance-issue-with-300-000-loaded-users-jfr-attached/m-p/320614#M7615 Florent_Guillau 2018-07-04T10:42:27Z https://connect.hyland.com/t5/nuxeo-forum/performance-issue-with-300-000-loaded-users-jfr-attached/m-p/320615#M7616 <P>Thanks again for fast answer, I have attached JFR file, at this moment we see that Nuxeo is using mostly 100% of CPU. One user is signing to nuxeo after attach group to document.</P> Wed, 04 Jul 2018 10:57:28 GMT https://connect.hyland.com/t5/nuxeo-forum/performance-issue-with-300-000-loaded-users-jfr-attached/m-p/320615#M7616 Kamil_Szymala 2018-07-04T10:57:28Z https://connect.hyland.com/t5/nuxeo-forum/performance-issue-with-300-000-loaded-users-jfr-attached/m-p/320616#M7617 <P>VisualVM snapshot attached.</P> Thu, 05 Jul 2018 10:14:06 GMT https://connect.hyland.com/t5/nuxeo-forum/performance-issue-with-300-000-loaded-users-jfr-attached/m-p/320616#M7617 Kamil_Szymala 2018-07-05T10:14:06Z https://connect.hyland.com/t5/nuxeo-forum/performance-issue-with-300-000-loaded-users-jfr-attached/m-p/320617#M7618 <P>Thread dumps would have been welcome. Where are users stored (SQL or LDAP directory)? Are the directories tuned?</P> Thu, 19 Jul 2018 13:33:57 GMT https://connect.hyland.com/t5/nuxeo-forum/performance-issue-with-300-000-loaded-users-jfr-attached/m-p/320617#M7618 Patrick_Abgrall 2018-07-19T13:33:57Z