[
https://issues.apache.org/jira/browse/HADOOP-7973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13185779#comment-13185779
]
Suresh Srinivas commented on HADOOP-7973:
-----------------------------------------
bq. I don't think it's related to use_ip, but I'll double check.
I suspect that is the case. Otherwise, we really should understand what started
this problem.
bq. Or will a finalizer introduce other problems?
Finalizers have their own share of problems. Perhaps for file system it may not
be severe.
bq. I vaguely seem to recall that disabling the cache for a job would cause the
JT to overwhelm the namenode with connections.
I am not sure if JT creates that many file systems. Some one from mapreduce can
comment on this.
bq. DistributedFileSystem#close becomes a no-op.
This is a change in the public API.
> DistributedFileSystem close has severe consequences
> ---------------------------------------------------
>
> Key: HADOOP-7973
> URL: https://issues.apache.org/jira/browse/HADOOP-7973
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs
> Affects Versions: 1.0.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Priority: Blocker
> Attachments: HADOOP-7973.patch
>
>
> The way {{FileSystem#close}} works is very problematic. Since the
> {{FileSystems}} are cached, any {{close}} by any caller will cause problems
> for every other reference to it. Will add more detail in the comments.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
