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https://issues.apache.org/jira/browse/SOLR-2861?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13140624#comment-13140624
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Yonik Seeley commented on SOLR-2861:
------------------------------------

{quote}
Update: I think I may have found one logic bug in solr - a hard commit reopen 
can go back in time since it doesn't use the writer to repoen. For example 
Thread1: commit() Thread2: reopen(writer) Thread1: reopen(without_writer). That 
last reopen will reopen at the point of the commit, going back in time if 
updates happened in between.
{quote}

Actually, I don't think this is true.  AFAIK, once you call 
openIfChanged(reader,writer) it doesn't matter if future calls are just to 
openIfChanged(reader) since reopening an NRT reader will always result in 
another NRT reader?
                
> transaction log / realtime-get failures 
> ----------------------------------------
>
>                 Key: SOLR-2861
>                 URL: https://issues.apache.org/jira/browse/SOLR-2861
>             Project: Solr
>          Issue Type: Bug
>            Reporter: Yonik Seeley
>         Attachments: TEST-org.apache.solr.search.TestRealTimeGet.xml, 
> fail4.xml, fail5.xml, jenkins_output.txt, solr_debug.patch, trunk-0.txt
>
>
> realtime-get or the transaction log fails sometimes

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