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https://issues.apache.org/jira/browse/HDFS-592?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12755816#action_12755816
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Kan Zhang commented on HDFS-592:
--------------------------------
> If you still do not like the name, could we resolve the naming issue later?
Well, I have said enough on this. It's your call.
I have a further comment on the following lease checking. It seems if the
client sends NULL for clientName, the checking is bypassed, which could become
a security loophole.
{code}
+ if (clientName != null && !pendingFile.getClientName().equals(clientName))
{
+ throw new LeaseExpiredException("Lease mismatch: " + block + " owned by "
+ + pendingFile.getClientName() + " but is accessed by " + clientName);
+ }
{code}
> Allow client to get a new generation stamp from NameNode
> --------------------------------------------------------
>
> Key: HDFS-592
> URL: https://issues.apache.org/jira/browse/HDFS-592
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: name-node
> Affects Versions: Append Branch
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: Append Branch
>
> Attachments: newGS.patch, newGS1.patch, newGS2.patch
>
>
> This issue aims to add an API to ClientProtocol that fetches a new
> generation stamp and an access token from NameNode to support append or
> pipeline recovery.
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