def onion created SOLR-14961:
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Summary: ZkMaintenanceUtils.clean(...) doesnt delete files with
same length
Key: SOLR-14961
URL: https://issues.apache.org/jira/browse/SOLR-14961
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: SolrCloud, SolrJ
Affects Versions: 8.6.3, 8.5, 8.4, 8.3, 8.2, 8.1, 8.0
Reporter: def onion
When trying to delete zookeeper path and all of its subnodes via
[ZkMaintenanceUtils.clean(SolrZkClient zkClient, String path, Predicate<String>
filter)|[https://github.com/apache/lucene-solr/blob/052efd62aec3262744049a9b6002348df1d6e1c4/solr/solrj/src/java/org/apache/solr/common/cloud/ZkMaintenanceUtils.java#L263]]
the Operation fails silently, when a ZKNode contains more than 1 file with the
same file name length.
This is because of the String.length() comparator used in the Treeset for
storing the paths. Paths with the same length are seen as equal and are not
added to the set.
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