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https://issues.apache.org/jira/browse/HADOOP-17528?focusedWorklogId=553166&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-553166
]
ASF GitHub Bot logged work on HADOOP-17528:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 16/Feb/21 19:44
Start Date: 16/Feb/21 19:44
Worklog Time Spent: 10m
Work Description: steveloughran commented on a change in pull request
#2701:
URL: https://github.com/apache/hadoop/pull/2701#discussion_r577089216
##########
File path:
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/sftp/TestSFTPFileSystem.java
##########
@@ -374,4 +374,13 @@ public void testMkDirs() throws IOException {
assertThat(((SFTPFileSystem)
sftpFs).getConnectionPool().getLiveConnCount(),
is(1));
}
+
+ @Test
+ public void testCloseFileSystemClosesConnectionPool() throws Exception {
+ SFTPFileSystem fs = (SFTPFileSystem) sftpFs;
+ fs.getHomeDirectory();
+ assertThat(fs.getConnectionPool().getLiveConnCount(), is(1));
+ fs.close();
+ assertThat(fs.getConnectionPool().getLiveConnCount(), is(0));
+ }
Review comment:
can you add another close() here just so we can make sure that
re-entrant close calls are safe.
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Issue Time Tracking
-------------------
Worklog Id: (was: 553166)
Time Spent: 0.5h (was: 20m)
> Not closing an SFTP File System instance prevents JVM from exiting.
> --------------------------------------------------------------------
>
> Key: HADOOP-17528
> URL: https://issues.apache.org/jira/browse/HADOOP-17528
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 3.2.0
> Reporter: Mikhail Pryakhin
> Assignee: Mikhail Pryakhin
> Priority: Major
> Labels: pull-request-available
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> SFTP file system leverages a connection pool which is not closed when a file
> system instance gets closed preventing a JVM from exiting as every SFTP
> connection runs in a separate non-daemon thread.
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