[jira] [Updated] (SOLR-6846) deadlock in UninvertedField#getUninvertedField()

["Avishai Ish-Shalom (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-6846?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Avishai Ish-Shalom updated SOLR-6846:
-------------------------------------
    Attachment: solr-uninvertedfield-cache.patch

A patch using a single synchronized block and no .wait() calls. should be free of deadlocks.

> deadlock in UninvertedField#getUninvertedField()
> ------------------------------------------------
>
>                 Key: SOLR-6846
>                 URL: https://issues.apache.org/jira/browse/SOLR-6846
>             Project: Solr
>          Issue Type: Bug
>          Components: search
>    Affects Versions: 4.10.2
>            Reporter: Avishai Ish-Shalom
>         Attachments: solr-uninvertedfield-cache.patch
>
>
> Multiple concurrent calls to UninvertedField#getUninvertedField may deadlock: 
> if a call gets to {{cache.wait()}} before another thread gets to the synchronized block around {{cache.notifyAll()}} code will deadlock because {{cache.wait()}} is synchronized with the same monitor object.



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