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https://issues.apache.org/jira/browse/HADOOP-18238?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran updated HADOOP-18238:
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Summary: Fix reentrancy check in SFTPFileSystem.close() (was: Hadoop 3.3.1
SFTPFileSystem.close() method have problem)
> Fix reentrancy check in SFTPFileSystem.close()
> ----------------------------------------------
>
> Key: HADOOP-18238
> URL: https://issues.apache.org/jira/browse/HADOOP-18238
> Project: Hadoop Common
> Issue Type: Bug
> Components: common
> Affects Versions: 3.3.1
> Reporter: yi liu
> Assignee: groot
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.3.4
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> {code:java}
> @Override
> public void close() throws IOException {
> if (closed.getAndSet(true)) {
> return;
> }
> try {
> super.close();
> } finally {
> if (connectionPool != null) {
> connectionPool.shutdown();
> }
> }
> }
> {code}
> if you execute this method, the fs can not execute the deleteOnExit method
> because the fs is closed.
> 如果手动调用，sftp fs执行close方法关闭连接池，让jvm能正常退出，deleteOnExsist
> 将因为fs已关闭无法执行成功。如果不关闭，则连接池不会释放，jvm不能退出。
> https://issues.apache.org/jira/browse/HADOOP-17528，这是3.2.0 sftpfilesystem的问题
>
> Translated:
> {quote}If it is called manually, sftp fs executes the close method to close
> the connection pool, so that the jvm can exit normally, deleteOnExist will
> fail to execute successfully because fs is closed. If it is not closed, the
> connection pool will not be released and the jvm cannot exit.
> {quote}
>
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