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https://issues.apache.org/jira/browse/KNOX-3030?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17839807#comment-17839807
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ASF subversion and git services commented on KNOX-3030:
-------------------------------------------------------
Commit 1018a3b29ca716b9fbdc5870b132238a9dcc7e91 in knox's branch
refs/heads/master from Sandor Molnar
[ https://gitbox.apache.org/repos/asf?p=knox.git;h=1018a3b29 ]
KNOX-3030 - Make TopologyUtils.parse thread safe (#901)
Besides this, Knox logs the faulty generated content when it's about to be
peristed on the disk.
> SAXException occurs while parsing old topology on the descriptor handle path
> ----------------------------------------------------------------------------
>
> Key: KNOX-3030
> URL: https://issues.apache.org/jira/browse/KNOX-3030
> Project: Apache Knox
> Issue Type: Bug
> Components: Server
> Reporter: Sandor Molnar
> Assignee: Sandor Molnar
> Priority: Critical
> Fix For: 2.1.0
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> In highly concurrent environments Knox may fail to parse the generated
> topology from descriptors/shared providers thus topology deployment fails
> with the following error:
> {noformat}
> 2024-01-26 10:35:25,173 ERROR topology.simple
> (SimpleDescriptorHandler.java:shouldPersistGeneratedTopology(682)) - Error
> comparing the generated cdp-proxy topology with the existing version:
> org.xml.sax.SAXParseException; lineNumber: 35; columnNumber: 20; Error at
> line 35 char 20: class org.apache.knox.gateway.topology.Provider cannot be
> cast to class org.apache.knox.gateway.topology.Param
> (org.apache.knox.gateway.topology.Provider and
> org.apache.knox.gateway.topology.Param are in unnamed module of loader
> java.net.URLClassLoader @668bc3d5)
> 2024-01-26 10:35:25,173 INFO topology.simple
> (SimpleDescriptorHandler.java:generateTopology(622)) - Skipping redeployment
> of the cdp-proxy topology because it already exists and has not changed.
> {noformat}
> This will lead to unreachable end-user endpoints.
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