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https://issues.apache.org/jira/browse/DIRSHARED-108?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13038612#comment-13038612
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Pierre-Arnaud Marcelot commented on DIRSHARED-108:
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I also tested this again.
I was not able to produce an OOM anymore.
I tested this against an ApacheDS server (latest version from trunk) filled
with 1,400,000 entries organized around 10 levels.
The recursive search executed flawlessly.
> Recursively drilling into the directory structure causes
> java.lang.OutOfMemoryError
> -----------------------------------------------------------------------------------
>
> Key: DIRSHARED-108
> URL: https://issues.apache.org/jira/browse/DIRSHARED-108
> Project: Directory Shared
> Issue Type: Bug
> Affects Versions: 1.0.0-M1
> Environment: Windows XP SP3
> Reporter: Sebu Koleth
> Fix For: 1.0.0-M4
>
> Attachments: ApacheLdapAPITest.java, UnboundidLdapAPITest.java
>
>
> private static void recursivelyDescend(LdapConnection connection,
> String dn) {
> System.out.println("Searching for children of dn : " + dn);
> try
> {
> Cursor<SearchResponse> cursor = connection.search(dn,
> "(objectclass=*)", SearchScope.ONELEVEL, "*");
> while (cursor.next())
> {
> SearchResponse response = cursor.get();
> if(response instanceof SearchResultEntry) {
> recursivelyDescend(connection,
> ((SearchResultEntry)response).getObjectName().getName());
> } else {
> System.out.println("Unusable response
> type " + response);
> }
> }
> } catch (LdapException le) {
> le.printStackTrace();
> } catch (Exception e) {
> e.printStackTrace();
> }
> }
> The above piece of code is exercised after obtaining an SSL-based LDAP
> connection. The target server has hundreds of thousands of records at
> different levels. Logging at WARN level shows a *lot* of messages :
> WARN NioProcessor-1 org.apache.directory.shared.asn1.ber.Asn1Decoder - The
> PDU has been fully decoded but there are still bytes in the buffer.
> The code chokes at processing the 52nd entry that is two levels deep from the
> base DN. At this level there are around 1000 sub-levels.
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