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https://issues.apache.org/jira/browse/HADOOP-18807?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17744029#comment-17744029
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ASF GitHub Bot commented on HADOOP-18807:
-----------------------------------------
zhangshuyan0 commented on code in PR #5847:
URL: https://github.com/apache/hadoop/pull/5847#discussion_r1266096591
##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/viewfs/ViewFileSystem.java:
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@@ -1926,12 +1926,41 @@ enum RenameStrategy {
SAME_FILESYSTEM_ACROSS_MOUNTPOINT
}
+ private void closeChildFileSystems(FileSystem fs) throws IOException {
+ if (fs != null) {
+ FileSystem[] childFs = fs.getChildFileSystems();
+ for (FileSystem child : childFs) {
Review Comment:
I think so. It does not need to be parallelized.
> Close child file systems in ViewFileSystem when cache is disabled.
> ------------------------------------------------------------------
>
> Key: HADOOP-18807
> URL: https://issues.apache.org/jira/browse/HADOOP-18807
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Shuyan Zhang
> Priority: Major
> Labels: pull-request-available
>
> When the cache is configured to disabled (namely,
> `fs.viewfs.enable.inner.cache=false` and `fs.*.impl.disable.cache=true`),
> even if `FileSystem.close()` is called, the client cannot truly close the
> child file systems in a ViewFileSystem. This caused our long-running clients
> to constantly produce resource leaks.
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