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Posted to oak-issues@jackrabbit.apache.org by "Julian Reschke (JIRA)" <ji...@apache.org> on 2015/03/11 15:18:39 UTC
[jira] [Comment Edited] (OAK-2464) Optimize read of known
non-existing children
[ https://issues.apache.org/jira/browse/OAK-2464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14356901#comment-14356901 ]
Julian Reschke edited comment on OAK-2464 at 3/11/15 2:18 PM:
--------------------------------------------------------------
This change causes a reproducible failure on my systems:
addNodeGetNode(org.apache.jackrabbit.oak.plugins.document.SimpleTest) Time elapsed: 0.453 sec <<< FAILURE!
java.lang.AssertionError
at org.junit.Assert.fail(Assert.java:92)
at org.junit.Assert.assertTrue(Assert.java:43)
at org.junit.Assert.assertNotNull(Assert.java:526)
at org.junit.Assert.assertNotNull(Assert.java:537)
at org.apache.jackrabbit.oak.plugins.document.SimpleTest.addNodeGetNode(SimpleTest.java:86)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
[~chetanm] removed "fix version 1.0.13" and backing out the change for now
was (Author: reschke):
This change causes a reproducible failure on my systems:
addNodeGetNode(org.apache.jackrabbit.oak.plugins.document.SimpleTest) Time elapsed: 0.453 sec <<< FAILURE!
java.lang.AssertionError
at org.junit.Assert.fail(Assert.java:92)
at org.junit.Assert.assertTrue(Assert.java:43)
at org.junit.Assert.assertNotNull(Assert.java:526)
at org.junit.Assert.assertNotNull(Assert.java:537)
at org.apache.jackrabbit.oak.plugins.document.SimpleTest.addNodeGetNode(SimpleTest.java:86)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
> Optimize read of known non-existing children
> --------------------------------------------
>
> Key: OAK-2464
> URL: https://issues.apache.org/jira/browse/OAK-2464
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Reporter: Vikas Saurabh
> Assignee: Chetan Mehrotra
> Priority: Minor
> Fix For: 1.1.6
>
> Attachments: 0001-OAK-2464-Optimize-read-of-known-non-existing-childre.patch, OAK-2464-Sort order test case.patch, OAK-2464-Take2.patch
>
>
> Reading a non-existing node always queries down to {{DocumentStore}}. {{DocumentNodeStore}} should consider {{nodeChildrenCache}} to see if it already knows about non-existence and avoid a look up into {{DocumentStore}}.
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