hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "stack (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-724) Pipeline close hangs if one of the datanode is not responsive.
Date Tue, 16 Nov 2010 00:03:16 GMT

    [ https://issues.apache.org/jira/browse/HDFS-724?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12932270#action_12932270
] 

stack commented on HDFS-724:
----------------------------

I tried it by running a few of the hbase tests that were failing before hbAckReply.patch.
 They pass now (with hdfs-895 in place on 0.20-append).  Let me run the full suite.  I'll
report back.

One issue that came up over in hbase-3234 was the fact that hdfs-724 does this:

{code}
-  public static final int DATA_TRANSFER_VERSION = 14;
+  public static final int DATA_TRANSFER_VERSION = 15;
{code}

Could we not do the above on commit to 0.20-append?  No biggie. Just asking.  Would be nice
not making comm incompatible.  Good stuff Hairong.

> Pipeline close hangs if one of the datanode is not responsive.
> --------------------------------------------------------------
>
>                 Key: HDFS-724
>                 URL: https://issues.apache.org/jira/browse/HDFS-724
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: data-node, hdfs client
>    Affects Versions: 0.21.0
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Hairong Kuang
>            Priority: Blocker
>             Fix For: 0.21.0
>
>         Attachments: h724_20091021.patch, hbAckReply.patch, pipelineHeartbeat.patch,
pipelineHeartbeat1.patch, pipelineHeartbeat2.patch, stuckWriteAppend20.patch
>
>
> In the new pipeline design, pipeline close is implemented by sending an additional empty
packet.  If one of the datanode does not response to this empty packet, the pipeline hangs.
 It seems that there is no timeout.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message