[ https://issues.apache.org/jira/browse/OAK-2773?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14496110#comment-14496110 ]
Michael Dürig commented on OAK-2773: ------------------------------------ Probably a duplicate of OAK-2543? > Speed up creation of JCR sessions > --------------------------------- > > Key: OAK-2773 > URL: https://issues.apache.org/jira/browse/OAK-2773 > Project: Jackrabbit Oak > Issue Type: Wish > Components: core > Affects Versions: 1.0.12, 1.2 > Reporter: Przemo Pakulski > Labels: performance > > JCR sessions used to be lightweight objects and fast to create in > Jackrabbit2/CRX. > I noticed that in Oak creation of session is significantly more expensive. On > my environment creating Oak sessions is ~10 times slower than in crx2. > The most of the time is spent in PrincipalProviderImpl class which executes > many queries. > Possible solutions are: > * introduce MembershipCache as it was in Jackrabbit2 > * speed up the queries, actually the queries itself are pretty fast, > calculation of execution plans is heavy and adds much overhead > * both -- This message was sent by Atlassian JIRA (v6.3.4#6332)