hadoop-common-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Joe Kelley (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-10309) S3 block filesystem should more aggressively delete temporary files
Date Wed, 29 Jan 2014 22:16:13 GMT
Joe Kelley created HADOOP-10309:
-----------------------------------

             Summary: S3 block filesystem should more aggressively delete temporary files
                 Key: HADOOP-10309
                 URL: https://issues.apache.org/jira/browse/HADOOP-10309
             Project: Hadoop Common
          Issue Type: Improvement
          Components: fs/s3
            Reporter: Joe Kelley
            Priority: Minor


The S3 FileSystem reading implementation downloads block files into a configurable temporary
directory. deleteOnExit() is called on these files, so they are deleted when the JVM exits.

However, JVM reuse can lead to JVMs that stick around for a very long time. This can cause
these temporary files to build up indefinitely and, in the worst case, fill up the local directory.

After a block file has been read, there is no reason to keep it around. It should be deleted.

Writing to the S3 FileSystem already has this behavior; after a temporary block file is written
and uploaded to S3, it is deleted immediately; there is no need to wait for the JVM to exit.



--
This message was sent by Atlassian JIRA
(v6.1.5#6160)

Mime
View raw message