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https://issues.apache.org/jira/browse/HADOOP-3159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12585209#action_12585209
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Konstantin Shvachko commented on HADOOP-3159:
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I agree with Doug, "hdfs" should not appear in FileSystem.
Could you please elaborate what and how you are trying to fix the problem. It
is not clear from the comments in the issue.
> FileSystem cache keep overwriting cached value
> ----------------------------------------------
>
> Key: HADOOP-3159
> URL: https://issues.apache.org/jira/browse/HADOOP-3159
> Project: Hadoop Core
> Issue Type: Bug
> Reporter: Tsz Wo (Nicholas), SZE
> Assignee: Tsz Wo (Nicholas), SZE
> Fix For: 0.17.0
>
> Attachments: 3159_20080402.patch
>
>
> Consider the following:
> {code}
> Configuration conf1 = new Configuration();
> FileSystem fs1 = FileSystem.get(conf1); //conf1 may be modified, the cache
> key stored will use the modified values.
> Configuration conf2 = new Configuration(); //create another conf, which won't
> have the modified values.
> FileSystem fs2 = FileSystem.get(conf2); //may initialize another FileSystem
> instead of returning the cached FileSystem, since conf2 does not have the
> modified values initially.
> {code}
> Therefore, FileSystem.get(conf) may keeps creating FileSystem and replaces
> the cached one.
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