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https://issues.apache.org/jira/browse/HDFS-14251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16758315#comment-16758315
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Kevin Risden commented on HDFS-14251:
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FYI @surendrasingh and @linyiqun since you worked on -HDFS-13768-
> BlockPoolSlice ForkJoinPool introduced by HDFS-13768 breaks under Java
> SecurityManager
> ---------------------------------------------------------------------------------------
>
> Key: HDFS-14251
> URL: https://issues.apache.org/jira/browse/HDFS-14251
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 2.10.0, 3.2.0, 3.1.2
> Reporter: Kevin Risden
> Priority: Major
>
> HDFS-13768 introduced ForkJoinPool to improve performance of BlockPoolSlice.
> The created ForkJoinPool doesn't pass in a custom thread factory and by
> default the thread factory prevents all privileges under the Java
> SecurityManager.
> This broke when integrating Hadoop 3.2.0 with Apache Solr in SOLR-9515.
> It isn't clear that the ForkJoinPool is necessary when a regular normal
> executor could work instead?
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