[jira] [Commented] (DIRSERVER-2340) Error causes permanent unresponsivenes

["Stefan Seelmann (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DIRSERVER-2340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17286285#comment-17286285 ] 

Stefan Seelmann commented on DIRSERVER-2340:
--------------------------------------------

Such a stack overflow error also happened to me when I worked on https://issues.apache.org/jira/browse/DIRSTUDIO-1119 and added more than 10k member attribute values to a groupOfNames entry. I think we need to change the recursive algorithm the LDAP coded to an iterative one.

Do you have entries me 1000s of attribute values? (probably groups)

As a workaround you can change the stack size of the JVM using the {-Xss} JVM flag, default on Linux is 1m so you can try e.g. {-Xss4m}. If you use the installer that would be configured in the conf/wrapper.conf with a line like {wrapper.java.additional.1=-Xss4m}.

> Error causes permanent unresponsivenes 
> ---------------------------------------
>
>                 Key: DIRSERVER-2340
>                 URL: https://issues.apache.org/jira/browse/DIRSERVER-2340
>             Project: Directory ApacheDS
>          Issue Type: Bug
>    Affects Versions: 2.0.0.AM26
>         Environment: Apache DS 2.0.0 AM 26 running over RHEL 7.8 and Oracle JDK 1.8.0_241-b07.
>            Reporter: Andrea Campana
>            Priority: Major
>
> Hi, I've been using ApacheDS since version 1.5, and I'm running into this issue: the system runs ok for days, or weeks, until I get this error in the logs:
>  
> {code:java}
> [20:00:03] WARN [org.apache.directory.server.ldap.LdapProtocolHandler] - Unexpected exception forcing session to close: sending disconnect notice to client.
> java.lang.StackOverflowError
>  at org.apache.directory.api.ldap.codec.factory.SearchResultEntryFactory.encodeValues(SearchResultEntryFactory.java:66)
>  at org.apache.directory.api.ldap.codec.factory.SearchResultEntryFactory.encodeValues(SearchResultEntryFactory.java:68)
>  at org.apache.directory.api.ldap.codec.factory.SearchResultEntryFactory.encodeValues(SearchResultEntryFactory.java:68)
>  at org.apache.directory.api.ldap.codec.factory.SearchResultEntryFactory.encodeValues(SearchResultEntryFactory.java:68){code}
> After this error the search operations are really slow, up to the point that searches that took few ms take more than one minute. I'm unable to reproduce it, please help.



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