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Hoss Man commented on SOLR-5652: -------------------------------- http://jenkins.thetaphi.de/job/Lucene-Solr-4.x-MacOSX/1200/ Revision: 1558588 Using Java: 64bit/jdk1.6.0 -XX:-UseCompressedOops -XX:+UseParallelGC {noformat} [junit4] 2> NOTE: reproduce with: ant test -Dtestcase=DistribCursorPagingTest -Dtests.method=testDistribSearch -Dtests.seed=B7F9EFE0FC392581 -Dtests.slow=true -Dtests.locale=es_MX -Dtests.timezone=America/Tortola -Dtests.file.encoding=ISO-8859-1 [junit4] FAILURE 29.3s | DistribCursorPagingTest.testDistribSearch <<< [junit4] > Throwable #1: java.lang.AssertionError: walk already seen: 39 [junit4] > at __randomizedtesting.SeedInfo.seed([B7F9EFE0FC392581:361F61F88B6645BD]:0) [junit4] > at org.apache.solr.cloud.DistribCursorPagingTest.assertFullWalkNoDups(DistribCursorPagingTest.java:628) [junit4] > at org.apache.solr.cloud.DistribCursorPagingTest.doRandomSortsOnLargeIndex(DistribCursorPagingTest.java:465) [junit4] > at org.apache.solr.cloud.DistribCursorPagingTest.doTest(DistribCursorPagingTest.java:86) [junit4] > at org.apache.solr.BaseDistributedSearchTestCase.testDistribSearch(BaseDistributedSearchTestCase.java:867) [junit4] > at java.lang.Thread.run(Thread.java:695) {noformat} After this I made teh following commits to tryand help track down the bug, in the hopes it would uncover some shard out of sync problems (which is the only explanation i could think of)... https://svn.apache.org/r1558939 https://svn.apache.org/r1558945 > 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 > > Twice now, Uwe's jenkins has encountered a "walk already seen ..." assertion > failure from DistribCursorPagingTest that I've been unable to fathom, let > alone reproduce. > Using this as a tracking issue to try and make sense of it. > Summary of things noticed so far (in 2 failures): > * So far only seen on http://jenkins.thetaphi.de > * So far only seen on MacOSX > * So far only seen on branch 4x > * So far seen on both Java6 and Java7 > * 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 both when sorting on one of the "\*_dv_last desc" fields > (docValues=true, sortMissingLast=true) > ** sort on same field asc has always 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: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org