Andrew Wang created HDFS-4816:
---------------------------------
Summary: transitionToActive blocks if the SBN is doing checkpoint
image transfer
Key: HDFS-4816
URL: https://issues.apache.org/jira/browse/HDFS-4816
Project: Hadoop HDFS
Issue Type: Bug
Components: namenode
Affects Versions: 2.0.4-alpha, 3.0.0
Reporter: Andrew Wang
The NN and SBN do this dance during checkpoint image transfer with nested HTTP
GETs via {{HttpURLConnection}}. When an admin does a {{-transitionToActive}}
during this transfer, part of that is interrupting an ongoing checkpoint so we
can transition immediately.
However, the {{thread.interrupt()}} in {{StandbyCheckpointer#stop}} gets
swallowed by {{connection.getResponseCode()}} in {{TransferFsImage#doGetUrl}}.
None of the methods in HttpURLConnection throw InterruptedException, so we need
to do something else (perhaps HttpClient [1]):
[1]: http://hc.apache.org/httpclient-3.x/
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
