jackrabbit-oak-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Michael Dürig (JIRA) <j...@apache.org>
Subject [jira] [Commented] (OAK-1015) Optimise path parsing
Date Mon, 04 Nov 2013 11:33:18 GMT

    [ https://issues.apache.org/jira/browse/OAK-1015?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13812766#comment-13812766
] 

Michael Dürig commented on OAK-1015:
------------------------------------

But this introduces a regression for OAK-978. 

{code}
  session.itemExists("/jcr:cont:ent");
{code}

will now throw a {{AssertionError}} instead of a {{RepositoryException}} when assertions are
enabled {{-ea}}.

> Optimise path parsing
> ---------------------
>
>                 Key: OAK-1015
>                 URL: https://issues.apache.org/jira/browse/OAK-1015
>             Project: Jackrabbit Oak
>          Issue Type: Sub-task
>          Components: core
>            Reporter: Michael Dürig
>            Assignee: Michael Dürig
>              Labels: performance
>             Fix For: 0.9
>
>
> As Jukka [mentioned | https://issues.apache.org/jira/browse/OAK-978?focusedCommentId=13751242&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13751242]
on OAK-978, is often on the critical path and the changes done there had a bad impact on performance:
> {code}
> Apache Jackrabbit Oak
> # ReadPropertyTest               min     10%     50%     90%     max       N
> Jackrabbit                         4       5       5       6      14   11287
> Oak-Tar                           14      15      16      16      27    3855
> {code}
> Until we are able to come up with a better solution that separates parsing from name
mapping, I suggest to use the following heuristic to shortcut path parsing: shortcut iff the
JCR path does not start with a dot, does not contain any of {}[]/ and if it contains a colon
the session does not have local re-mappings.



--
This message was sent by Atlassian JIRA
(v6.1#6144)

Mime
View raw message