JohnZZGithub commented on a change in pull request #2185:
URL: https://github.com/apache/hadoop/pull/2185#discussion_r471830630
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File path:
hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/viewfs/ViewFileSystemBaseTest.java
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@@ -1430,4 +1432,49 @@ public void testGetContentSummaryWithFileInLocalFS()
throws Exception {
summaryAfter.getLength());
}
}
+
+ @Test
+ public void testMountPointCache() throws Exception {
+ conf.setInt(Constants.CONFIG_VIEWFS_PATH_RESOLUTION_CACHE_CAPACITY, 1);
+ conf.setBoolean("fs.viewfs.impl.disable.cache", true);
Review comment:
@umamaheswararao This is a good point. Let me add some preconditions
check.
BTW, now the inner cache assumes every filesystem is created while InodeTree
is constructed and never changed. Do you think it's reasonable to change it to
a concurrent hash map?
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