[
https://issues.apache.org/jira/browse/SOLR-5652?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13882976#comment-13882976
]
Yonik Seeley commented on SOLR-5652:
------------------------------------
bq. NumericDocValuesField-s and SortedDocValuesField-s, respectively, and these
require each doc to have a value,
Although that used to be true, it should no longer be the case: LUCENE-5178
Now.... one thing that does look a little fishy to me that might cause a
problem is how things like IntComparator deals with missing values...
it simply substitutes in MAX_INT or MIN_INT when the value is missing.
If the tests here are generating random values, you might try taking out
MAX_<numeric_type>, MIN_<numeric_type> and see if it makes a difference?
> Heisenbug in DistribCursorPagingTest: "walk already seen ..."
> -------------------------------------------------------------
>
> Key: SOLR-5652
> URL: https://issues.apache.org/jira/browse/SOLR-5652
> Project: Solr
> Issue Type: Bug
> Reporter: Hoss Man
> Assignee: Hoss Man
> Attachments: 129.log, 372.log,
> jenkins.thetaphi.de_Lucene-Solr-4.x-MacOSX_1200.log.txt,
> jenkins.thetaphi.de_Lucene-Solr-4.x-MacOSX_1217.log.txt
>
>
> Several times now, Uwe's jenkins has encountered a "walk already seen ..."
> assertion failure from DistribCursorPagingTest that I've been unable to
> fathom, let alone reproduce (although sarowe was able to trigger a similar,
> non-reproducible seed, failure on his machine)
> Using this as a tracking issue to try and make sense of it.
> Summary of things noticed so far:
> * So far only seen on http://jenkins.thetaphi.de & sarowe's mac
> * So far seen on MacOSX and Linux
> * So far seen on branch 4x and trunk
> * So far seen on Java6, Java7, and Java8
> * fails occured in first block of randomized testing:
> ** we've indexed a small number of randomized docs
> ** we're explicitly looping over every field and sorting in both directions
> * fails were sorting on one of the "\*_dv_last" or "\*_dv_first" fields
> (docValues=true, either sortMissingLast=true OR sortMissingFirst=true)
> ** for desc sorts, sort on same field asc has worked fine just before this
> (fields are in arbitrary order, but "asc" always tried before "desc")
> ** sorting on some other random fields has sometimes been tried before this
> and worked
> (specifics of each failure seen in the wild recorded in comments)
--
This message was sent by Atlassian JIRA
(v6.1.5#6160)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
